Manufacturer communications · 2025
GMC bulletins dated 2025
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Bulletins
762 bulletins
| Number | Kind | Component | Dated | Model years |
|---|---|---|---|---|
| PIC6540F | Service bulletin | — | Dec 31, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +35 |
| PIT5689M | Service bulletin | — | Dec 30, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +19 |
| PIT5984A | Service bulletin | — | Dec 25, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +9 |
| PIT6393H | Service bulletin | — | Dec 23, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +9 |
| PIT6468 | Service bulletin | — | Dec 19, 2025 | 2026 Terrain, 2025 Terrain |
| PIT6445B | Service bulletin | — | Dec 19, 2025 | 2026 Acadia, 2026 Canyon, 2026 Sierra +4 |
| PIT6260A | Service bulletin | — | Dec 17, 2025 | 2024 Yukon, 2023 Yukon, 2022 Yukon |
| PIP6092A | Service bulletin | — | Dec 17, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon +6 |
| PIT6467 | Service bulletin | — | Dec 16, 2025 | 2026 Sierra 3500HD, 2025 Sierra 3500HD |
| PIT6465A | Service bulletin | — | Dec 15, 2025 | 2026 Terrain, 2026 Yukon |
| PIP6064A | Service bulletin | — | Dec 15, 2025 | 2025 Sierra, 2025 Yukon |
| PIT6466 | Service bulletin | — | Dec 12, 2025 | 2026 Terrain, 2025 Terrain |
| PIT6457A | Service bulletin | — | Dec 12, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +35 |
| PIP6031D | Service bulletin | — | Dec 12, 2025 | 2026 Terrain, 2025 Terrain |
| PIC6629B | Service bulletin | — | Dec 12, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +27 |
| PIT6465 | Service bulletin | — | Dec 11, 2025 | 2026 Yukon |
| PIT6345A | Service bulletin | — | Dec 11, 2025 | 2025 Acadia, 2024 Acadia |
| PIT6464 | Service bulletin | — | Dec 8, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| PIT6407A | Service bulletin | — | Dec 5, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| PIT6393G | Service bulletin | — | Dec 5, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +9 |
| PIT6458 | Service bulletin | — | Dec 4, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +6 |
| PIT6224B | Service bulletin | — | Dec 4, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +11 |
| PIC6630A | Service bulletin | — | Dec 2, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +11 |
| PIC6602Q | Service bulletin | — | Dec 2, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +15 |
| PIT6462 | Service bulletin | — | Nov 26, 2025 | 2026 Yukon |
| PIT6460 | Service bulletin | — | Nov 26, 2025 | 2026 Terrain, 2025 Terrain |
| PIT6459 | Service bulletin | — | Nov 26, 2025 | 2026 Sierra, 2026 Yukon |
| PIT6132D | Service bulletin | — | Nov 26, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +21 |
| PIC6630 | Service bulletin | — | Nov 26, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +11 |
| PIT6457 | Service bulletin | — | Nov 25, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +35 |
| PIT6456 | Service bulletin | — | Nov 24, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +14 |
| N242438500-04 | Emissions | Fuel/Propulsion System | Nov 24, 2025 | 2024 Sierra 2500HD, 2024 Sierra 3500HD |
| PIT6455 | Service bulletin | — | Nov 20, 2025 | 2026 Sierra, 2025 Sierra |
| PIT6406D | Service bulletin | — | Nov 20, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +11 |
| PIT5214G | Service bulletin | — | Nov 20, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| N252521591-01 | Service campaign | — | Nov 20, 2025 | 2026 Yukon |
| PIP6092 | Service bulletin | — | Nov 19, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon +6 |
| PIC6602P | Service bulletin | — | Nov 18, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +17 |
| N252528020 | Service campaign | Steering | Nov 18, 2025 | 2025 Yukon |
| N252507990 | Service campaign | — | Nov 18, 2025 | 2025 Sierra, 2025 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| PIT6450A | Service bulletin | — | Nov 14, 2025 | 2026 Sierra, 2026 Yukon |
| 652.30 | Over-the-air update | — | Nov 14, 2025 | 2025 Sierra, 2024 Sierra, 2025 Terrain |
| PIT6452A | Service bulletin | — | Nov 13, 2025 | 2026 Sierra, 2025 Sierra, 2026 Yukon +1 |
| PIP5981G | Service bulletin | — | Nov 13, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +6 |
| PIC6629A | Service bulletin | — | Nov 13, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +25 |
| PIC6627B | Service bulletin | — | Nov 13, 2025 | 2026 Acadia, 2025 Canyon |
| PIT6452 | Service bulletin | — | Nov 12, 2025 | 2026 Sierra, 2025 Sierra, 2026 Yukon +1 |
| PIT6248B | Service bulletin | — | Nov 11, 2025 | 2024 Canyon, 2023 Canyon, 2024 Sierra |
| PIC6629 | Service bulletin | — | Nov 11, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +27 |
| PIC6627A | Service bulletin | — | Nov 11, 2025 | 2025 Canyon |
| PIC6602N | Service bulletin | — | Nov 11, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +15 |
| PIT6450 | Service bulletin | — | Nov 7, 2025 | 2026 Sierra, 2026 Yukon |
| PIT6218C | Service bulletin | — | Nov 7, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia |
| PIP5865J | Service bulletin | — | Nov 7, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon +9 |
| 24-NA-166 | Service bulletin | Electrical System, Wheels | Nov 7, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +3 |
| 25-NA-339 | Service bulletin | Engine | Nov 6, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +13 |
| N252526151 | Service campaign | Fuel/Propulsion System | Nov 4, 2025 | 2025 Savana |
| N252526150 | Service campaign | Fuel/Propulsion System | Nov 4, 2025 | 2025 Savana, 2026 Sierra, 2026 Sierra 2500HD +1 |
| 24-NA-227 | Service bulletin | Electrical System, Structure | Nov 4, 2025 | 2026 Terrain, 2025 Terrain |
| PIT6446 | Service bulletin | — | Nov 3, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +20 |
| PIT6449 | Service bulletin | — | Oct 31, 2025 | 2026 Sierra, 2025 Sierra |
| PIT6406C | Service bulletin | — | Oct 31, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +11 |
| N252521980-01 | Service campaign | Service Brakes | Oct 31, 2025 | 2023 Canyon |
| PIT6445A | Service bulletin | — | Oct 30, 2025 | 2026 Sierra, 2026 Yukon, 2026 Hummer EV Pickup +1 |
| PIT6441A | Service bulletin | — | Oct 30, 2025 | 2026 Yukon |
| PIP6091 | Service bulletin | — | Oct 30, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +2 |
| PIP6090 | Service bulletin | — | Oct 30, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| PIP6077B | Service bulletin | — | Oct 30, 2025 | 2025 Terrain |
| PIP5700F | Service bulletin | — | Oct 30, 2025 | 2022 Canyon, 2021 Canyon, 2020 Canyon +20 |
| PIC6627 | Service bulletin | — | Oct 30, 2025 | 2025 Canyon |
| PIP6036C | Service bulletin | — | Oct 28, 2025 | 2026 Terrain, 2025 Terrain |
| 653.20 | Over-the-air update | — | Oct 28, 2025 | 2025 Acadia, 2025 Canyon, 2024 Hummer EV +1 |
| PIP5975B | Service bulletin | — | Oct 27, 2025 | 2026 Terrain, 2025 Terrain |
| PIT6393F | Service bulletin | — | Oct 23, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +9 |
| PIC6602M | Service bulletin | — | Oct 23, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +15 |
| PIT6234A | Service bulletin | — | Oct 22, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +14 |
| PIT6132C | Service bulletin | — | Oct 22, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +17 |
| PIT5993E | Service bulletin | — | Oct 22, 2025 | 2026 Yukon, 2025 Yukon, 2024 Yukon +3 |
| N252521980 | Service campaign | Service Brakes | Oct 22, 2025 | 2023 Canyon |
| N25-F163BU | Over-the-air update | — | Oct 22, 2025 | 2026 Sierra, 2024 Sierra, 2023 Sierra +3 |
| 653.40 | Over-the-air update | — | Oct 22, 2025 | 2024 Canyon, 2024 Hummer EV, 2023 Yukon |
| PIC6591C | Service bulletin | — | Oct 21, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +7 |
| N252508350 | Service campaign | Engine | Oct 21, 2025 | 2021 Acadia |
| PIT6435 | Service bulletin | — | Oct 20, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +6 |
| PIP6071B | Service bulletin | — | Oct 20, 2025 | 2026 Terrain, 2025 Terrain, 2024 Terrain +1 |
| 653.30 | Over-the-air update | — | Oct 20, 2025 | 2024 Acadia, 2024 Hummer EV |
| PIT6445 | Service bulletin | — | Oct 18, 2025 | 2026 Sierra, 2026 Yukon |
| PIT6425B | Service bulletin | — | Oct 18, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +68 |
| PIC6602L | Service bulletin | — | Oct 18, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +15 |
| PIT6425A | Service bulletin | — | Oct 17, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +68 |
| PIP6059B | Service bulletin | — | Oct 17, 2025 | 2026 Terrain, 2025 Terrain |
| PIC6551A | Service bulletin | — | Oct 16, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +42 |
| N232401570 | Service campaign | — | Oct 16, 2025 | 2024 Hummer EV, 2023 Hummer EV, 2022 Hummer EV Pickup |
| N252517790 | Service campaign | Power Train | Oct 14, 2025 | 2026 Canyon, 2025 Canyon, 2025 Savana +1 |
| PIT6366A | Service bulletin | — | Oct 11, 2025 | 2026 Sierra, 2025 Sierra, 2026 Yukon +1 |
| PIP6045B | Service bulletin | — | Oct 11, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia |
| PIP6087A | Service bulletin | — | Oct 9, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +1 |
| PIC6602K | Service bulletin | — | Oct 9, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +15 |
| N252523390 | Service campaign | Steering | Oct 9, 2025 | 2026 Sierra |
| N242454441 -03 | Service campaign | Power Train | Oct 9, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +8 |
| PIT6441 | Service bulletin | — | Oct 8, 2025 | 2026 Yukon |
| PIP6088 | Service bulletin | — | Oct 8, 2025 | 2022 Canyon, 2021 Canyon, 2020 Canyon +20 |
| PIT6406B | Service bulletin | — | Oct 7, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +11 |
| N252516700 | Service campaign | — | Oct 7, 2025 | 2025 Hummer EV, 2024 Hummer EV |
| 653.31 | Over-the-air update | — | Oct 7, 2025 | 2024 Canyon |
| PIT6440 | Service bulletin | — | Oct 4, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +60 |
| PIT6393E | Service bulletin | — | Oct 4, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +6 |
| 25-NA-152 | Service bulletin | Suspension | Oct 3, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +4 |
| PIT6438 | Service bulletin | — | Oct 1, 2025 | 2026 Canyon |
| PIT6437 | Service bulletin | — | Oct 1, 2025 | 2026 Yukon, 2025 Yukon, 2026 Hummer EV Pickup +1 |
| PIT6411B | Service bulletin | — | Oct 1, 2025 | 2026 Acadia, 2026 Canyon, 2025 Canyon +4 |
| PIT6393D | Service bulletin | — | Oct 1, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +7 |
| PIP6068C | Service bulletin | — | Oct 1, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +6 |
| 652.50 | Over-the-air update | — | Oct 1, 2025 | 2023 Sierra |
| PIP5927C | Service bulletin | — | Sep 30, 2025 | 2026 Terrain, 2025 Terrain, 2024 Terrain +1 |
| N25-251670 | Over-the-air update | — | Sep 30, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2025 Sierra |
| PIC6607B | Service bulletin | — | Sep 27, 2025 | 2026 Acadia, 2026 Sierra, 2026 Yukon |
| N252518760 | Service campaign | — | Sep 23, 2025 | 2025 Savana |
| PIT6436 | Service bulletin | — | Sep 20, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon |
| PIT6434 | Service bulletin | — | Sep 20, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| PIT6356C | Service bulletin | — | Sep 20, 2025 | 2025 Acadia, 2024 Acadia, 2025 Hummer EV +2 |
| PIT5941C | Service bulletin | — | Sep 19, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| N252507500 | Service campaign | Suspension | Sep 17, 2025 | 2025 Sierra |
| N252508341 | Service campaign | Engine | Sep 16, 2025 | 2022 Sierra, 2021 Sierra, 2023 Yukon +2 |
| N252508340 | Service campaign | Engine | Sep 16, 2025 | 2023 Sierra |
| 652.20 | Over-the-air update | — | Sep 16, 2025 | 2025 Sierra, 2024 Sierra, 2025 Terrain |
| PIT6426 | Service bulletin | — | Sep 15, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +7 |
| PIT6393C | Service bulletin | — | Sep 15, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +7 |
| PIP6087 | Service bulletin | — | Sep 15, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +1 |
| PIP6086 | Service bulletin | — | Sep 15, 2025 | 2019 Canyon, 2018 Canyon, 2017 Canyon +9 |
| PIP6083A | Service bulletin | — | Sep 15, 2025 | 2024 Sierra, 2023 Sierra |
| PIC6587E | Service bulletin | — | Sep 15, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +2 |
| PIT6424B | Service bulletin | — | Sep 10, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2026 Sierra +4 |
| PIT5800D | Service bulletin | — | Sep 10, 2025 | 2024 Yukon, 2023 Yukon, 2022 Yukon +1 |
| N2525211130 | Service campaign | — | Sep 10, 2025 | 2025 Yukon |
| PIT6432 | Service bulletin | — | Sep 9, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +9 |
| PIT6428 | Service bulletin | — | Sep 9, 2025 | 2022 Sierra |
| PIT6298A | Service bulletin | — | Sep 9, 2025 | 2025 Hummer EV, 2024 Hummer EV |
| PIT5479H | Service bulletin | — | Sep 9, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon +58 |
| 13598 | Other | — | Sep 9, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| PIT6431 | Service bulletin | — | Sep 8, 2025 | 2026 Sierra, 2026 Yukon, 2026 Hummer EV Pickup +1 |
| PIT6053C | Service bulletin | — | Sep 8, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +8 |
| PIP6085 | Service bulletin | — | Sep 8, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +10 |
| PIP6068B | Service bulletin | — | Sep 8, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +6 |
| PIP5865H | Service bulletin | — | Sep 8, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon +9 |
| PIC6607A | Service bulletin | — | Sep 8, 2025 | 2026 Acadia, 2026 Sierra, 2026 Yukon |
| N252510320 | Service campaign | — | Sep 8, 2025 | 2024 Sierra, 2023 Sierra, 2024 Yukon +1 |
| 25-NA-110 | Service bulletin | Suspension | Sep 6, 2025 | 2023 Yukon, 2022 Yukon, 2021 Yukon |
| 24-NA-241 | Service bulletin | Engine | Sep 6, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +1 |
| 23-NA-201 | Service bulletin | Steering, Service Brakes | Sep 6, 2025 | 2023 Sierra, 2022 Sierra, 2021 Sierra +2 |
| 22-NA-080 | Service bulletin | Engine | Sep 6, 2025 | 2025 Savana, 2024 Savana, 2023 Savana +34 |
| PIT6424A | Service bulletin | — | Sep 5, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2026 Sierra +4 |
| PIC6587D | Service bulletin | — | Sep 5, 2025 | 2025 Sierra, 2024 Sierra, 2025 Yukon |
| N252510321-02 | Service campaign | — | Sep 5, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +5 |
| N252510321-01 | Service campaign | — | Sep 5, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +4 |
| PIP6083 | Service bulletin | — | Sep 4, 2025 | 2024 Sierra, 2023 Sierra |
| 25-NA-080 | Service bulletin | Power Train | Sep 4, 2025 | 2023 Sierra, 2022 Sierra, 2021 Sierra |
| 25-NA-074 | Service bulletin | Electrical System, Exterior Lighting | Sep 4, 2025 | 2025 Acadia, 2024 Acadia |
| 18-NA-180 | Service bulletin | Electrical System, Fuel/Propulsion System | Sep 4, 2025 | 2023 Canyon, 2022 Canyon, 2021 Canyon +26 |
| N24-245213 | Over-the-air update | — | Sep 3, 2025 | 2024 Canyon, 2023 Canyon, 2024 Sierra +1 |
| 25-NA-264 | Service bulletin | Service Brakes | Sep 3, 2025 | 2026 Sierra, 2026 Yukon |
| 25-NA-170 | Service bulletin | Visibility/Wiper, Engine | Sep 3, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6411A | Service bulletin | — | Aug 30, 2025 | 2026 Acadia, 2025 Acadia, 2025 Hummer EV +4 |
| PIP5845B | Service bulletin | — | Aug 30, 2025 | 2022 Sierra, 2021 Sierra, 2022 Yukon +1 |
| PIC6617 | Service bulletin | — | Aug 30, 2025 | 2025 Sierra, 2025 Yukon |
| PIT6427 | Service bulletin | — | Aug 29, 2025 | 2026 Yukon, 2025 Yukon |
| PIT6430 | Service bulletin | — | Aug 27, 2025 | 2025 Yukon |
| PIT5578E | Service bulletin | — | Aug 27, 2025 | 2024 Terrain, 2023 Terrain, 2022 Terrain +4 |
| PIC6583F | Service bulletin | — | Aug 27, 2025 | 2025 Sierra, 2025 Yukon |
| PIT5854D | Service bulletin | — | Aug 26, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| N252494250 | Service campaign | Wheels | Aug 26, 2025 | 2025 Yukon |
| PIC6583E | Service bulletin | — | Aug 23, 2025 | 2025 Sierra, 2025 Yukon |
| PIT6236B | Service bulletin | — | Aug 22, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +5 |
| PIP6081 | Service bulletin | — | Aug 22, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +6 |
| PIP5865G | Service bulletin | — | Aug 22, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon +9 |
| PIT6424 | Service bulletin | — | Aug 21, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2026 Sierra +4 |
| PIT6423 | Service bulletin | — | Aug 19, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +6 |
| PIT6213C | Service bulletin | — | Aug 19, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2026 Sierra +5 |
| PIP6068A | Service bulletin | — | Aug 19, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +7 |
| N25-F165AN | Over-the-air update | — | Aug 18, 2025 | 2025 Canyon |
| PIT6379C | Service bulletin | — | Aug 15, 2025 | 2025 Canyon |
| PIT6368B | Service bulletin | — | Aug 15, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +8 |
| PIT6110H | Service bulletin | — | Aug 15, 2025 | 2025 Savana, 2024 Savana, 2023 Savana +12 |
| PIT5895E | Service bulletin | — | Aug 15, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +12 |
| PIP5865F | Service bulletin | — | Aug 15, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +7 |
| PIC6602H | Service bulletin | — | Aug 15, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +15 |
| PIP4902T | Service bulletin | — | Aug 14, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| PIC6511B | Service bulletin | — | Aug 14, 2025 | 2025 Acadia, 2024 Acadia |
| N252515930 | Service campaign | — | Aug 14, 2025 | 2026 Terrain |
| N252515360 | Service campaign | — | Aug 14, 2025 | 2025 Yukon |
| N252510321 | Service campaign | — | Aug 14, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +3 |
| 652.10 | Over-the-air update | — | Aug 11, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +1 |
| PIP6080 | Service bulletin | — | Aug 9, 2025 | 2026 Terrain |
| PIT6422 | Service bulletin | — | Aug 8, 2025 | 2026 Yukon, 2025 Yukon, 2024 Yukon |
| PIT6394B | Service bulletin | — | Aug 8, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +3 |
| PIT6059C | Service bulletin | — | Aug 8, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +44 |
| PIT6310A | Service bulletin | — | Aug 7, 2025 | 2025 Yukon |
| PIP6079 | Service bulletin | — | Aug 7, 2025 | 2026 Terrain, 2025 Terrain |
| PIC5650M | Service bulletin | — | Aug 7, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| N25-251032 | Over-the-air update | — | Aug 7, 2025 | 2024 Sierra, 2023 Sierra |
| N25-250403 | Over-the-air update | — | Aug 7, 2025 | 2024 Sierra, 2023 Sierra, 2025 Sierra 2500HD +1 |
| N25-250380 | Over-the-air update | — | Aug 7, 2025 | 2025 Sierra, 2024 Sierra 2500HD, 2023 Sierra 2500HD |
| N25-250307 | Over-the-air update | — | Aug 7, 2025 | 2024 Sierra, 2023 Sierra |
| N252517721 | Service campaign | — | Aug 6, 2025 | 2026 Acadia |
| PIT6396A | Service bulletin | — | Aug 5, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +8 |
| 652.40 | Over-the-air update | — | Aug 5, 2025 | 2025 Sierra, 2024 Sierra |
| PIP6031C | Service bulletin | — | Aug 4, 2025 | 2026 Terrain, 2025 Terrain |
| N252514590 | Service campaign | — | Aug 4, 2025 | 2025 Yukon |
| N252503960 | Service campaign | — | Aug 2, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| PIT6421 | Service bulletin | — | Jul 31, 2025 | 2026 Canyon |
| PIT6419 | Service bulletin | — | Jul 31, 2025 | 2025 Hummer EV, 2026 Hummer EV Pickup, 2026 Hummer EV SUV |
| PIT5161L | Service bulletin | — | Jul 31, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +30 |
| PIP6077 | Service bulletin | — | Jul 31, 2025 | 2025 Terrain |
| PIT6415 | Service bulletin | — | Jul 30, 2025 | 2026 Yukon, 2025 Yukon, 2024 Yukon +3 |
| PIC6602G | Service bulletin | — | Jul 30, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| PIT6212D | Service bulletin | — | Jul 29, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon +12 |
| PIT6387A | Service bulletin | — | Jul 28, 2025 | 2024 Canyon |
| PIP5865E | Service bulletin | — | Jul 28, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +21 |
| PIT6393B | Service bulletin | — | Jul 26, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +5 |
| PIT6413 | Service bulletin | — | Jul 25, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +6 |
| PIP6023C | Service bulletin | — | Jul 24, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +3 |
| PIC6602F | Service bulletin | — | Jul 24, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| N242435630-05 | Service campaign | — | Jul 23, 2025 | 2024 Sierra, 2023 Sierra, 2024 Sierra 2500HD +2 |
| PIT5910B | Service bulletin | — | Jul 18, 2025 | 2022 Sierra, 2022 Yukon |
| PIP5601C | Service bulletin | — | Jul 18, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +42 |
| PIP5601B | Service bulletin | Equipment | Jul 18, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +92 |
| N25-250378 (V652.50) | Over-the-air update | — | Jul 18, 2025 | 2025 Hummer EV |
| N25-250378 (V652.21) | Over-the-air update | — | Jul 18, 2025 | 2024 Hummer EV |
| PIP6031B | Service bulletin | — | Jul 17, 2025 | 2026 Terrain, 2025 Terrain |
| PIP5774B | Service bulletin | — | Jul 17, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +7 |
| N252512260 | Service campaign | Steering | Jul 17, 2025 | 2025 Sierra |
| PIT6379B | Service bulletin | — | Jul 16, 2025 | 2025 Canyon |
| PIT6274C | Service bulletin | — | Jul 16, 2025 | 2026 Acadia, 2025 Acadia, 2026 Sierra +4 |
| PIT5074S | Service bulletin | — | Jul 16, 2025 | 2026 Acadia, 2025 Acadia, 2026 Canyon +16 |
| N252502891 | Service campaign | Engine | Jul 16, 2025 | 2025 Sierra |
| PIT6014B | Service bulletin | — | Jul 15, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| PIT6379A | Service bulletin | — | Jul 12, 2025 | 2025 Canyon |
| PIP6045A | Service bulletin | — | Jul 11, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia |
| PIP6010B | Service bulletin | — | Jul 11, 2025 | 2025 Terrain, 2024 Terrain |
| PIT6406A | Service bulletin | — | Jul 8, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +8 |
| PIT6268B | Service bulletin | — | Jul 8, 2025 | 2025 Yukon |
| PIT6031A | Service bulletin | — | Jul 8, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +1 |
| PIT6411 | Service bulletin | — | Jul 2, 2025 | 2026 Acadia, 2025 Acadia, 2025 Hummer EV +4 |
| PIT6393A | Service bulletin | — | Jul 2, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +5 |
| PIT6410 | Service bulletin | — | Jun 30, 2025 | 2026 Canyon, 2025 Canyon, 2024 Canyon |
| PIT6406 | Service bulletin | — | Jun 30, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +8 |
| PIT6404 | Service bulletin | — | Jun 30, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +7 |
| PIT6394A | Service bulletin | — | Jun 30, 2025 | 2025 Acadia, 2024 Acadia |
| PIP6071A | Service bulletin | — | Jun 30, 2025 | 2026 Terrain, 2025 Terrain, 2024 Terrain +1 |
| PIC6602E | Service bulletin | — | Jun 30, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| PIT6101S | Service bulletin | — | Jun 29, 2025 | 2023 Acadia, 2025 Savana, 2024 Savana +14 |
| PIT6408 | Service bulletin | — | Jun 28, 2025 | 2025 Sierra, 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| PIT5832V | Service bulletin | — | Jun 26, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +26 |
| N252494220 | Service campaign | Service Brakes | Jun 26, 2025 | 2025 Terrain |
| N252494003-01 | Service campaign | Power Train | Jun 26, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +5 |
| PIT6405 | Service bulletin | — | Jun 24, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +9 |
| PIP6031A | Service bulletin | — | Jun 24, 2025 | 2025 Terrain |
| N252508800 | Service campaign | Suspension | Jun 24, 2025 | 2025 Sierra |
| N25-249834 (652.40) | Over-the-air update | — | Jun 23, 2025 | 2025 Hummer EV |
| PIT6302B | Service bulletin | — | Jun 20, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra +1 |
| PIC6602D | Service bulletin | — | Jun 20, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| N252494770-01 | Service campaign | — | Jun 20, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +67 |
| PIT6402 | Service bulletin | — | Jun 19, 2025 | 2026 Sierra, 2025 Sierra, 2024 Sierra |
| PIT6401 | Service bulletin | — | Jun 19, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +27 |
| PIT6336B | Service bulletin | — | Jun 19, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra |
| PIP6073 | Service bulletin | — | Jun 19, 2025 | 2025 Sierra, 2025 Yukon |
| PIP6032B | Service bulletin | — | Jun 19, 2025 | 2026 Terrain, 2025 Terrain |
| PIP6019B | Service bulletin | — | Jun 19, 2025 | 2026 Terrain, 2025 Terrain, 2024 Terrain |
| PIT6403 | Service bulletin | — | Jun 18, 2025 | 2025 Yukon |
| PIT6393 | Service bulletin | — | Jun 18, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +4 |
| PIP6074 | Service bulletin | — | Jun 18, 2025 | 2026 Terrain, 2025 Terrain |
| PIP6062 | Service bulletin | — | Jun 18, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| PIC6086J | Service bulletin | — | Jun 18, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +22 |
| PIT6400 | Service bulletin | — | Jun 17, 2025 | 2025 Savana, 2024 Savana, 2023 Savana +47 |
| PIT6362D | Service bulletin | — | Jun 17, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +3 |
| PIP6072 | Service bulletin | — | Jun 17, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| N252494770 | Service campaign | — | Jun 17, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +67 |
| N25-250020 | Over-the-air update | — | Jun 17, 2025 | 2025 Canyon, 2025 Sierra 2500HD |
| N25-250322 | Over-the-air update | — | Jun 16, 2025 | 2026 Terrain |
| PIP6071 | Service bulletin | — | Jun 13, 2025 | 2025 Terrain, 2024 Terrain, 2023 Terrain |
| PIT6398 | Service bulletin | — | Jun 12, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +4 |
| PIT6397 | Service bulletin | — | Jun 12, 2025 | 2025 Yukon |
| PIT6110G | Service bulletin | — | Jun 12, 2025 | 2025 Savana, 2024 Savana, 2023 Savana +12 |
| PIP6068 | Service bulletin | — | Jun 12, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +6 |
| PIT6396 | Service bulletin | — | Jun 11, 2025 | 2023 Sierra, 2022 Sierra, 2021 Sierra +9 |
| PIP6069 | Service bulletin | — | Jun 11, 2025 | 2024 Sierra, 2024 Yukon |
| PIT6180A | Service bulletin | — | Jun 10, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +86 |
| PIP4902S | Service bulletin | — | Jun 9, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| 25-NA-156 | Service bulletin | Wheels | Jun 7, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| 25-NA-021 | Service bulletin | Electrical System | Jun 7, 2025 | 2025 Acadia, 2025 Terrain, 2025 Yukon |
| PIT6394 | Service bulletin | — | Jun 5, 2025 | 2025 Acadia, 2024 Acadia |
| PIC6587C | Service bulletin | — | Jun 5, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +2 |
| N242451030-03 | Service campaign | — | Jun 5, 2025 | 2023 Canyon |
| 25-NA-150 | Service bulletin | Engine | Jun 5, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| 00-06-01-026R | Service bulletin | Engine | Jun 5, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +80 |
| 25-NA-147 | Service bulletin | Engine | Jun 3, 2025 | 2024 Terrain, 2023 Terrain |
| 24-NA-262 | Service bulletin | Power Train | Jun 3, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +9 |
| PIT6392 | Service bulletin | — | Jun 2, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6362C | Service bulletin | — | Jun 2, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +3 |
| N252502390 | Service campaign | Engine | Jun 2, 2025 | 2023 Hummer EV, 2022 Hummer EV Pickup |
| 07-08-42-006U | Service bulletin | Exterior Lighting | Jun 2, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +21 |
| PIT6287A | Service bulletin | — | May 30, 2025 | 2025 Yukon |
| PIT5074R | Service bulletin | — | May 30, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| PIP4964F | Service bulletin | — | May 29, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +14 |
| PIC6602C | Service bulletin | — | May 29, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +13 |
| N25-F172AE | Over-the-air update | — | May 28, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +4 |
| PIP5981F | Service bulletin | — | May 27, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT6390 | Service bulletin | — | May 23, 2025 | 2025 Sierra, 2024 Sierra |
| PIP6066A | Service bulletin | — | May 23, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| N252494003 | Service campaign | Engine | May 23, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +5 |
| PIT6389 | Service bulletin | — | May 22, 2025 | 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| PIT5966E | Service bulletin | — | May 22, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +52 |
| PIT6355 | Service bulletin | — | May 21, 2025 | 2024 Acadia, 2025 Sierra, 2024 Sierra |
| PIT6270C | Service bulletin | — | May 21, 2025 | 2026 Terrain, 2025 Terrain |
| N242483540-01 | Service campaign | Power Train | May 21, 2025 | 2024 Sierra |
| PIT6387 | Service bulletin | — | May 20, 2025 | 2025 Canyon, 2024 Canyon |
| PIT6356B | Service bulletin | — | May 20, 2025 | 2025 Acadia, 2024 Acadia, 2025 Hummer EV +2 |
| PIT6098D | Service bulletin | — | May 20, 2025 | 2024 Acadia |
| PIP6010A | Service bulletin | — | May 20, 2025 | 2025 Terrain |
| PIP6064 | Service bulletin | — | May 19, 2025 | 2025 Sierra, 2025 Yukon |
| PIT6076C | Service bulletin | — | May 17, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +8 |
| PIP6066 | Service bulletin | — | May 17, 2025 | 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| 25-NA-132 | Service bulletin | Engine | May 17, 2025 | 2025 Acadia, 2024 Acadia |
| 22-NA-161 | Service bulletin | Equipment, Visibility/Wiper | May 17, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +16 |
| 22-NA-083 | Service bulletin | Electrical System, Fuel/Propulsion System | May 17, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT6379 | Service bulletin | — | May 16, 2025 | 2025 Canyon, 2026 Terrain, 2025 Terrain +1 |
| PIT6304D | Service bulletin | — | May 16, 2025 | 2025 Sierra, 2024 Sierra |
| PIE0840 | Service bulletin | Engine, Electrical System | May 16, 2025 | 2025 Canyon, 2024 Canyon |
| 25-NA-127 | Service bulletin | Structure | May 16, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| 24-NA-201 | Service bulletin | Engine, Electrical System | May 16, 2025 | 2025 Acadia, 2024 Acadia |
| 23-NA-170 | Service bulletin | Engine, Electrical System | May 16, 2025 | 2025 Savana, 2024 Savana, 2023 Savana +26 |
| 23-NA-151 | Service bulletin | Electrical System, Fuel/Propulsion System | May 16, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| 22-NA-182 | Service bulletin | Power Train | May 16, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +17 |
| PIE0753I | Service bulletin | Electrical System, Fuel/Propulsion System | May 15, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| N232427510-02 | Service campaign | — | May 15, 2025 | 2024 Acadia, 2024 Hummer EV, 2023 Hummer EV +6 |
| 25-NA-124 | Service bulletin | Suspension | May 15, 2025 | 2025 Canyon, 2024 Canyon |
| 23-NA-153 | Service bulletin | Engine, Power Train | May 15, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +81 |
| PIC6602B | Service bulletin | — | May 14, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +10 |
| 25-NA-044 | Service bulletin | Fuel/Propulsion System, Electrical System | May 14, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| 24-NA-202 | Service bulletin | Fuel/Propulsion System, Electrical System | May 14, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +2 |
| 24-NA-170 | Service bulletin | Electrical System, Engine | May 14, 2025 | 2024 Canyon, 2023 Canyon |
| 24-NA-133 | Service bulletin | Power Train | May 14, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2025 Sierra +1 |
| 23-NA-202 | Service bulletin | Electrical System, Fuel/Propulsion System | May 14, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT6385 | Service bulletin | — | May 13, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| PIT6383 | Service bulletin | — | May 13, 2025 | 2025 Canyon, 2024 Canyon |
| PIT6381 | Service bulletin | — | May 13, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6378 | Service bulletin | — | May 13, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6362B | Service bulletin | — | May 13, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +3 |
| PIT6356A | Service bulletin | — | May 13, 2025 | 2025 Acadia, 2024 Acadia, 2025 Hummer EV +2 |
| PIP6060 | Service bulletin | — | May 13, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +3 |
| PIC6587B | Service bulletin | — | May 13, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +2 |
| 25-NA-121 | Service bulletin | Electrical System | May 13, 2025 | 2025 Sierra, 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| 24-NA-235 | Service bulletin | Electrical System, Steering | May 13, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| PIT6192C | Service bulletin | — | May 12, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +1 |
| PIP6059A | Service bulletin | — | May 12, 2025 | 2025 Terrain |
| 25-NA-108 | Service bulletin | Power Train, Electrical System | May 12, 2025 | 2025 Sierra, 2024 Sierra |
| PIE0824A | Service bulletin | Power Train | May 10, 2025 | 2025 Canyon, 2025 Sierra, 2025 Sierra 2500HD +2 |
| 25-NA-116 | Service bulletin | Electrical System, Steering | May 10, 2025 | 2025 Sierra, 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| PIP5865D | Service bulletin | — | May 9, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +7 |
| PIE0837 | Service bulletin | Visibility/Wiper, Structure | May 9, 2025 | 2026 Terrain, 2025 Terrain |
| PIE0836 | Service bulletin | Electrical System, Fuel/Propulsion System | May 9, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| 25-NA-119 | Service bulletin | Air Bags, Electrical System | May 9, 2025 | 2025 Sierra, 2024 Sierra, 2025 Sierra 2500HD +5 |
| 25-NA-113 | Service bulletin | Engine | May 9, 2025 | 2025 Acadia, 2024 Acadia |
| 25-NA-102 | Service bulletin | Engine | May 9, 2025 | 2024 Acadia |
| 25-NA-085 | Service bulletin | Electrical System | May 9, 2025 | 2025 Canyon, 2025 Terrain, 2025 Yukon |
| PIT6367A | Service bulletin | — | May 8, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| PIT6101R | Service bulletin | — | May 8, 2025 | 2023 Acadia, 2024 Sierra, 2023 Sierra +4 |
| PIP6036B | Service bulletin | — | May 8, 2025 | 2025 Terrain |
| PIP5946A | Service bulletin | — | May 8, 2025 | 2024 Canyon, 2023 Canyon, 2024 Sierra |
| PIE0806B | Service bulletin | Structure | May 8, 2025 | 2024 Yukon, 2023 Yukon |
| 25-NA-118 | Service bulletin | Forward Collision Avoidance | May 8, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +60 |
| 25-NA-114 | Service bulletin | Structure | May 8, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +19 |
| 25-NA-014 | Service bulletin | Power Train | May 8, 2025 | 2025 Sierra, 2024 Sierra |
| 24-NA-075 | Service bulletin | Power Train, Suspension | May 8, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| 21-NA-238 | Service bulletin | Power Train, Equipment | May 8, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +9 |
| PIT6212C | Service bulletin | — | May 7, 2025 | 2025 Canyon, 2024 Canyon, 2025 Hummer EV +9 |
| PIE0814B | Service bulletin | Power Train, Electrical System | May 7, 2025 | 2025 Terrain |
| 25-NA-112 | Service bulletin | Engine | May 7, 2025 | 2025 Acadia, 2024 Acadia |
| 24-NA-138 | Service bulletin | Forward Collision Avoidance, Electrical System | May 7, 2025 | 2024 Canyon |
| 24-NA-078 | Service bulletin | Engine, Power Train | May 7, 2025 | 2024 Canyon, 2023 Canyon, 2024 Sierra +1 |
| 15-NA-010 | Service bulletin | Engine | May 7, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +88 |
| PIT6377 | Service bulletin | — | May 6, 2025 | 2025 Yukon |
| PIT6369A | Service bulletin | — | May 6, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +10 |
| PIT6350A | Service bulletin | — | May 6, 2025 | 2024 Hummer EV |
| PIT6215B | Service bulletin | — | May 6, 2025 | 2023 Canyon, 2025 Hummer EV, 2024 Hummer EV +5 |
| N252503100 | Service campaign | — | May 6, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| N25-250520 | Over-the-air update | — | May 6, 2025 | 2025 Sierra, 2024 Sierra, 2024 Yukon +1 |
| N242451390-03 | Service campaign | — | May 6, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT6349A | Service bulletin | — | May 5, 2025 | 2025 Yukon |
| PIT6281B | Service bulletin | — | May 5, 2025 | 2025 Yukon |
| PIT6268A | Service bulletin | — | May 5, 2025 | 2025 Yukon |
| PIT6129B | Service bulletin | — | May 5, 2025 | 2024 Hummer EV, 2023 Hummer EV, 2022 Hummer EV Pickup |
| PIT6018J | Service bulletin | — | May 5, 2025 | 2024 Canyon, 2023 Canyon |
| PIP5810C | Service bulletin | — | May 5, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +9 |
| N25-249834 | Over-the-air update | — | May 5, 2025 | 2025 Hummer EV, 2024 Hummer EV |
| 25-NA-111 | Service bulletin | Engine | May 5, 2025 | 2025 Acadia, 2024 Acadia |
| PIE0834 | Service bulletin | Structure, Electrical System | May 3, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIC6602A | Service bulletin | — | May 2, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +6 |
| 24-NA-029 | Service bulletin | Structure | May 2, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +1 |
| PIP6061 | Service bulletin | Fuel/Propulsion System | May 1, 2025 | 2025 Acadia, 2024 Acadia |
| N232427510-01 | Service campaign | — | May 1, 2025 | 2024 Acadia, 2024 Hummer EV, 2023 Hummer EV +6 |
| PIT6373 | Service bulletin | — | Apr 30, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| PIT6270B | Service bulletin | — | Apr 30, 2025 | 2026 Terrain, 2025 Terrain |
| PIC6602 | Service bulletin | — | Apr 30, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +6 |
| 25-NA-037 | Service bulletin | Engine | Apr 30, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +7 |
| 24-NA-244 | Service bulletin | Electrical System, Fuel/Propulsion System | Apr 30, 2025 | 2025 Acadia, 2024 Acadia |
| PIP5958B | Service bulletin | — | Apr 29, 2025 | 2025 Terrain |
| N232427510 | Service campaign | — | Apr 29, 2025 | 2024 Acadia, 2024 Hummer EV, 2023 Hummer EV +6 |
| 25-NA-101 | Service bulletin | Seats, Electrical System | Apr 29, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +13 |
| PIT6331B | Service bulletin | — | Apr 28, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6155D | Service bulletin | — | Apr 28, 2025 | 2025 Acadia, 2024 Acadia, 2024 Sierra |
| PIT6056A | Service bulletin | — | Apr 28, 2025 | 2024 Hummer EV, 2023 Hummer EV, 2024 Sierra +7 |
| PIE0832 | Service bulletin | Engine | Apr 28, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra |
| 24-NA-143 | Service bulletin | Electrical System, Fuel/Propulsion System | Apr 25, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| 22-NA-242 | Service bulletin | Electrical System | Apr 24, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +35 |
| 24-NA-113 | Service bulletin | Electrical System | Apr 23, 2025 | 2023 Canyon, 2025 Hummer EV, 2024 Hummer EV +6 |
| 23-NA-097 | Service bulletin | Structure, Equipment | Apr 23, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +2 |
| PIT6368A | Service bulletin | — | Apr 22, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +2 |
| PIC6587A | Service bulletin | — | Apr 22, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +1 |
| 25-NA-099 | Service bulletin | Electrical System | Apr 22, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +1 |
| 24-NA-068 | Service bulletin | Engine, Electrical System | Apr 22, 2025 | 2024 Acadia, 2023 Acadia, 2022 Acadia +2 |
| 21-NA-240 | Service bulletin | Engine | Apr 22, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +3 |
| PIT6372 | Service bulletin | — | Apr 18, 2025 | 2026 Terrain |
| PIT6369 | Service bulletin | — | Apr 18, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +10 |
| PIT6368 | Service bulletin | — | Apr 18, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +2 |
| PIT6317B | Service bulletin | — | Apr 18, 2025 | 2024 Acadia, 2024 Canyon, 2023 Canyon +1 |
| PIT6248A | Service bulletin | — | Apr 18, 2025 | 2024 Acadia, 2025 Canyon, 2024 Canyon +3 |
| PIT6144G | Service bulletin | — | Apr 18, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +6 |
| PIT6110F | Service bulletin | — | Apr 18, 2025 | 2025 Savana, 2024 Savana, 2023 Savana +20 |
| PIP6059 | Service bulletin | — | Apr 18, 2025 | 2025 Terrain |
| 25-NA-100 | Service bulletin | Engine | Apr 18, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +80 |
| 25-NA-098 | Service bulletin | Electrical System | Apr 18, 2025 | 2025 Hummer EV |
| 24-NA-176 | Service bulletin | Electrical System, Steering | Apr 18, 2025 | 2025 Acadia, 2024 Canyon, 2023 Canyon +1 |
| 24-NA-142 | Service bulletin | Electrical System, Steering | Apr 18, 2025 | 2025 Acadia, 2024 Acadia |
| PIT6304C | Service bulletin | — | Apr 17, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6286A | Service bulletin | — | Apr 17, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIP5863C | Service bulletin | — | Apr 17, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +7 |
| PIE0830 | Service bulletin | Electrical System, Visibility/Wiper | Apr 17, 2025 | 2025 Hummer EV, 2024 Hummer EV |
| PI0281L | Service bulletin | Steering, Suspension | Apr 17, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| 25-NA-097 | Service bulletin | Wheels, Electrical System | Apr 17, 2025 | 2025 Yukon |
| PIT6335A | Service bulletin | — | Apr 16, 2025 | 2025 Acadia, 2024 Acadia, 2024 Canyon +5 |
| PIT6151B | Service bulletin | — | Apr 16, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +13 |
| PIT6105D | Service bulletin | — | Apr 16, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +6 |
| PIP6008E | Service bulletin | — | Apr 16, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +18 |
| PIP5841F | Service bulletin | — | Apr 16, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +1 |
| PIC6552E | Service bulletin | — | Apr 16, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +25 |
| 25-NA-096 | Service bulletin | Electrical System, Steering | Apr 16, 2025 | 2025 Yukon |
| 25-NA-095 | Service bulletin | Fuel/Propulsion System, Engine | Apr 16, 2025 | 2025 Sierra, 2024 Sierra, 2025 Yukon +1 |
| 24-NA-151 | Service bulletin | Structure | Apr 16, 2025 | 2025 Sierra, 2024 Sierra |
| 24-NA-022 | Service bulletin | Seats | Apr 16, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| PIT6098C | Service bulletin | — | Apr 15, 2025 | 2024 Acadia |
| PIP5926D | Service bulletin | — | Apr 15, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +9 |
| 25-NA-094 | Service bulletin | Electrical System, Lane Departure | Apr 15, 2025 | 2026 Terrain |
| 21-NA-166 | Service bulletin | Electrical System, Steering | Apr 15, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +20 |
| PIT6362A | Service bulletin | — | Apr 14, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +3 |
| PIE0794E | Service bulletin | Engine | Apr 14, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +1 |
| N252499750 | Service campaign | Service Brakes | Apr 14, 2025 | 2025 Hummer EV |
| PIT5551R | Service bulletin | — | Apr 12, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +63 |
| 24-NA-139 | Service bulletin | Fuel/Propulsion System, Engine | Apr 12, 2025 | 2024 Acadia, 2023 Acadia, 2022 Acadia +20 |
| PIT6367 | Service bulletin | — | Apr 11, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| 25-NA-093 | Service bulletin | Engine, Electrical System | Apr 11, 2025 | 2024 Yukon |
| 24-NA-094 | Service bulletin | Electrical System, Engine | Apr 11, 2025 | 2024 Sierra |
| 13-02-32-001H | Service bulletin | Steering | Apr 11, 2025 | 2017 Acadia, 2016 Acadia, 2025 Sierra 2500HD +21 |
| PIP5841E | Service bulletin | Engine | Apr 10, 2025 | 2024 Acadia, 2023 Acadia, 2022 Acadia +2 |
| PIE0827 | Service bulletin | Exterior Lighting | Apr 10, 2025 | 2025 Sierra, 2024 Sierra |
| N252497440 | Emissions | — | Apr 10, 2025 | 2025 Yukon |
| 25-NA-091 | Service bulletin | Power Train, Engine | Apr 10, 2025 | 2025 Sierra, 2024 Sierra |
| 24-NA-229 | Service bulletin | Electrical System | Apr 10, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +49 |
| PIT6321A | Service bulletin | — | Apr 9, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6157C | Service bulletin | — | Apr 9, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +2 |
| 25-NA-041 | Service bulletin | Electrical System, Structure | Apr 9, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| 23-NA-066 | Service bulletin | Engine, Electrical System | Apr 9, 2025 | 2024 Sierra 2500HD, 2024 Sierra 3500HD |
| PIT6366 | Service bulletin | — | Apr 8, 2025 | 2025 Yukon |
| PIT6270A | Service bulletin | — | Apr 8, 2025 | 2025 Terrain |
| PIT6101Q | Service bulletin | — | Apr 8, 2025 | 2023 Acadia, 2024 Sierra, 2023 Sierra +6 |
| PIT5986D | Service bulletin | — | Apr 8, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +21 |
| PIP6023B | Service bulletin | — | Apr 8, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +3 |
| PIE0811B | Service bulletin | Engine | Apr 8, 2025 | 2025 Sierra, 2024 Sierra |
| 25-NA-011 | Service bulletin | Engine | Apr 8, 2025 | 2025 Acadia, 2024 Acadia |
| 23-NA-158 | Service bulletin | Equipment, Electrical System | Apr 8, 2025 | 2023 Canyon |
| 07-00-89-037W | Service bulletin | — | Apr 8, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| 24-NA-193 | Service bulletin | Electrical System | Apr 7, 2025 | 2024 Acadia, 2024 Canyon, 2024 Sierra |
| PIE0826 | Service bulletin | Structure | Apr 5, 2025 | 2025 Hummer EV, 2024 Hummer EV |
| 24-NA-180 | Service bulletin | Engine, Electrical System | Apr 5, 2025 | 2024 Canyon |
| PIT5851F | Service bulletin | — | Apr 4, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +8 |
| PIP6023A | Service bulletin | — | Apr 4, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +3 |
| 24-NA-136 | Service bulletin | Electrical System | Apr 4, 2025 | 2024 Canyon |
| 24-NA-028 | Service bulletin | Electrical System, Structure | Apr 4, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +1 |
| 23-NA-036 | Service bulletin | Electrical System, Fuel/Propulsion System | Apr 4, 2025 | 2024 Hummer EV, 2023 Hummer EV, 2022 Hummer EV Pickup |
| 25-NA-087 | Service bulletin | Electrical System | Apr 3, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| 23-NA-074 | Service bulletin | Electrical System, Engine | Apr 3, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +2 |
| 22-NA-183 | Service bulletin | Wheels, Electrical System | Apr 3, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +9 |
| 18-NA-315 | Service bulletin | Suspension | Apr 3, 2025 | 2020 Yukon, 2019 Yukon, 2018 Yukon +2 |
| PIT6362 | Service bulletin | — | Apr 2, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +4 |
| PIP6042A | Service bulletin | Engine | Apr 2, 2025 | 2025 Terrain |
| 21-NA-139 | Service bulletin | Engine, Electrical System | Apr 2, 2025 | 2021 Acadia, 2020 Acadia, 2019 Acadia +4 |
| PIT6218B | Service bulletin | — | Apr 1, 2025 | 2025 Acadia, 2024 Acadia |
| PIT6101P | Service bulletin | — | Apr 1, 2025 | 2023 Acadia, 2024 Sierra, 2023 Sierra +4 |
| N242483540 | Service campaign | Power Train | Apr 1, 2025 | 2024 Sierra |
| 17-NA-394 | Service bulletin | Suspension | Apr 1, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +7 |
| PIT6076B | Service bulletin | — | Mar 31, 2025 | 2023 Yukon, 2022 Yukon |
| PIP6052 | Service bulletin | — | Mar 31, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +12 |
| 25-NA-082 | Service bulletin | Electrical System | Mar 31, 2025 | 2025 Acadia |
| 13-08-116-001K | Service bulletin | Electrical System | Mar 31, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| 25-NA-078 | Service bulletin | Electrical System | Mar 29, 2025 | 2025 Yukon |
| 25-NA-077 | Service bulletin | Electrical System, Seats | Mar 29, 2025 | 2024 Yukon, 2023 Yukon, 2022 Yukon |
| 25-NA-076 | Service bulletin | Engine | Mar 29, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +7 |
| 22-NA-096 | Service bulletin | Equipment, Electrical System | Mar 29, 2025 | 2025 Acadia, 2024 Acadia, 2025 Hummer EV +16 |
| 25-NA-073 | Service bulletin | Exterior Lighting | Mar 28, 2025 | 2025 Acadia, 2024 Acadia |
| PIT6209G | Service bulletin | — | Mar 27, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +5 |
| PIT6053B | Service bulletin | — | Mar 27, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +5 |
| PIE0824 | Service bulletin | Power Train | Mar 27, 2025 | 2025 Canyon, 2025 Sierra, 2025 Sierra 2500HD +2 |
| PIP5950A | Service bulletin | — | Mar 26, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| PIP5943A | Service bulletin | — | Mar 25, 2025 | 2023 Canyon, 2022 Canyon, 2021 Canyon +24 |
| PIP5911B | Service bulletin | — | Mar 25, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +2 |
| 25-NA-052 | Service bulletin | Engine | Mar 25, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +80 |
| 23-NA-185 | Service bulletin | Electrical System, Power Train | Mar 25, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +25 |
| 07-08-42-006T | Service bulletin | Exterior Lighting | Mar 25, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +21 |
| PIT6353 | Service bulletin | — | Mar 24, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT6304B | Service bulletin | — | Mar 24, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6110E | Service bulletin | — | Mar 24, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +15 |
| PIP6049A | Service bulletin | — | Mar 24, 2025 | 2025 Canyon, 2024 Canyon, 2025 Savana +8 |
| PIP5981E | Service bulletin | — | Mar 24, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT6101N | Service bulletin | — | Mar 22, 2025 | 2024 Acadia, 2023 Acadia, 2024 Sierra +5 |
| N24-247330 | Over-the-air update | — | Mar 22, 2025 | 2025 Acadia |
| 25-NA-066 | Service bulletin | Fuel/Propulsion System, Engine | Mar 22, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| PIT6356 | Service bulletin | — | Mar 21, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +1 |
| PIT6301A | Service bulletin | — | Mar 21, 2025 | 2025 Yukon |
| PIE0823 | Service bulletin | Structure | Mar 21, 2025 | 2025 Yukon |
| 25-NA-065 | Service bulletin | Steering, Service Brakes | Mar 21, 2025 | 2026 Acadia, 2025 Acadia, 2024 Acadia +94 |
| 25-NA-062 | Service bulletin | Visibility/Wiper | Mar 21, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| 24-NA-098 | Service bulletin | Electrical System | Mar 21, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIE0821 | Service bulletin | Engine | Mar 20, 2025 | 2025 Canyon, 2024 Canyon, 2025 Sierra +1 |
| 25-NA-064 | Service bulletin | Service Brakes | Mar 20, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| 24-NA-164 | Service bulletin | Visibility/Wiper | Mar 20, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +25 |
| PIT6288E | Service bulletin | — | Mar 19, 2025 | 2025 Yukon |
| PIP6003E | Service bulletin | — | Mar 19, 2025 | 2024 Terrain, 2023 Terrain |
| N25-172AE | Over-the-air update | — | Mar 19, 2025 | 2025 Terrain |
| 24-NA-003 | Service bulletin | Structure, Visibility/Wiper | Mar 19, 2025 | 2024 Acadia, 2023 Acadia, 2022 Acadia +5 |
| PIT5511F | Service bulletin | — | Mar 18, 2025 | 2019 Sierra, 2018 Sierra, 2017 Sierra +8 |
| 24-NA-247 | Service bulletin | Engine | Mar 18, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +7 |
| PIP6049 | Service bulletin | — | Mar 14, 2025 | 2025 Canyon, 2024 Canyon, 2025 Savana +7 |
| 23-NA-164 | Service bulletin | Electrical System, Equipment | Mar 14, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +13 |
| 08-03-10-006I | Service bulletin | Wheels | Mar 14, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| 25-NA-001 | Service bulletin | Power Train | Mar 13, 2025 | 2025 Acadia, 2024 Acadia, 2025 Terrain +1 |
| 23-NA-165 | Service bulletin | Electrical System, Equipment | Mar 13, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +13 |
| 23-NA-163 | Service bulletin | Electrical System, Equipment | Mar 13, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +13 |
| 23-NA-073 | Service bulletin | Engine | Mar 13, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +16 |
| PIT6350 | Service bulletin | — | Mar 12, 2025 | 2024 Hummer EV |
| PIE0814A | Service bulletin | Power Train, Electrical System | Mar 12, 2025 | 2025 Terrain |
| N222383021 | Service campaign | — | Mar 12, 2025 | 2022 Sierra |
| 25-NA-059 | Service bulletin | Engine | Mar 12, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| 25-NA-058 | Service bulletin | Engine | Mar 12, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| 15-06-03-001F | Service bulletin | Electrical System | Mar 12, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIT6347A | Service bulletin | Service Brakes | Mar 11, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +1 |
| 25-NA-060 | Service bulletin | Forward Collision Avoidance | Mar 11, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +1 |
| 19-NA-255 | Service bulletin | Structure | Mar 11, 2025 | 2025 Savana, 2024 Savana, 2023 Savana +41 |
| 25-NA-054 | Service bulletin | Engine | Mar 8, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| PIT6336A | Service bulletin | — | Mar 7, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra |
| PIT6317A | Service bulletin | — | Mar 7, 2025 | 2024 Acadia, 2024 Canyon, 2023 Canyon +1 |
| PIT6206A | Service bulletin | — | Mar 7, 2025 | 2025 Sierra, 2024 Sierra |
| PIT5993D | Service bulletin | — | Mar 7, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| PIE0812A | Service bulletin | Engine | Mar 7, 2025 | 2021 Sierra, 2020 Sierra, 2021 Yukon |
| 25-NA-022 | Service bulletin | Structure, Electrical System | Mar 7, 2025 | 2025 Canyon, 2024 Canyon, 2025 Terrain +1 |
| 24-NA-232 | Service bulletin | Power Train, Electrical System | Mar 7, 2025 | 2024 Acadia |
| PIE0820A | Service bulletin | Electrical System, Structure | Mar 5, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| 25-NA-048 | Service bulletin | Electrical System | Mar 5, 2025 | 2024 Hummer EV, 2024 Sierra |
| 24-NA-099 | Service bulletin | Suspension, Structure | Mar 5, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| 22-NA-094 | Service bulletin | Engine, Electrical System | Mar 5, 2025 | 2022 Acadia, 2021 Acadia, 2020 Acadia |
| 17-NA-073 | Service bulletin | Equipment | Mar 5, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| 24-NA-046 | Service bulletin | Visibility/Wiper, Structure | Mar 4, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +18 |
| PIC6591A | Service bulletin | — | Mar 3, 2025 | 2024 Acadia, 2023 Acadia, 2022 Acadia +8 |
| N242452130 | Service campaign | Engine | Mar 3, 2025 | 2024 Canyon, 2023 Canyon, 2024 Sierra +1 |
| PIP5966A | Service bulletin | Power Train | Mar 2, 2025 | 2023 Canyon, 2022 Canyon, 2021 Canyon +25 |
| PIE0820 | Service bulletin | Structure | Mar 1, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| PIT6349 | Service bulletin | — | Feb 28, 2025 | 2025 Yukon |
| PIT6288D | Service bulletin | Structure | Feb 28, 2025 | 2025 Yukon |
| PIT6229A | Service bulletin | — | Feb 28, 2025 | 2025 Sierra, 2024 Sierra |
| PIT5689L | Service bulletin | Engine | Feb 28, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +16 |
| PIP5901B | Service bulletin | — | Feb 28, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +9 |
| PIT6144F | Service bulletin | Suspension | Feb 27, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +6 |
| PIT6044N | Service bulletin | — | Feb 27, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT5994A | Service bulletin | — | Feb 27, 2025 | 2025 Terrain, 2024 Terrain, 2023 Terrain +7 |
| PIT5981B | Service bulletin | Suspension | Feb 27, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| PIE0806A | Service bulletin | Structure | Feb 27, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon |
| PIE0753H | Service bulletin | Fuel/Propulsion System, Electrical System | Feb 27, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIP5981D | Service bulletin | Fuel/Propulsion System, Power Train | Feb 26, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| N242482641 | Service campaign | Suspension | Feb 26, 2025 | 2024 Canyon |
| N242482640 | Service campaign | Suspension | Feb 26, 2025 | 2024 Canyon |
| N242471431 | Service bulletin | — | Feb 26, 2025 | 2025 Acadia, 2024 Acadia, 2025 Terrain |
| 24-NA-015 | Service bulletin | Electrical System, Fuel/Propulsion System | Feb 26, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +1 |
| 23-NA-209 | Service bulletin | Structure, Equipment | Feb 26, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon |
| PIT6347 | Service bulletin | Service Brakes | Feb 25, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +1 |
| PIT6277A | Service bulletin | — | Feb 25, 2025 | 2025 Sierra, 2024 Sierra |
| PIP6003D | Service bulletin | Fuel/Propulsion System | Feb 25, 2025 | 2024 Terrain, 2023 Terrain |
| PIP5824D | Service bulletin | Engine | Feb 25, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +2 |
| 05-03-07-009L | Service bulletin | Suspension, Wheels | Feb 25, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIT6346 | Service bulletin | Fuel/Propulsion System | Feb 24, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2025 Sierra +1 |
| PIT6345 | Service bulletin | — | Feb 22, 2025 | 2025 Terrain |
| PIT6344 | Service bulletin | — | Feb 22, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +19 |
| PIT6341 | Service bulletin | — | Feb 22, 2025 | 2024 Acadia |
| PIE0818 | Service bulletin | Structure, Visibility/Wiper | Feb 22, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +9 |
| 11-00-89-005Y | Service bulletin | — | Feb 22, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIT6209F | Service bulletin | — | Feb 21, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| PIT5734H | Service bulletin | — | Feb 21, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +7 |
| PIT4506H | Service bulletin | — | Feb 21, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +17 |
| 25-NA-038 | Service bulletin | Seats | Feb 21, 2025 | 2025 Sierra, 2024 Sierra |
| PIT5895D | Service bulletin | — | Feb 20, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +9 |
| PIP5358D | Service bulletin | — | Feb 20, 2025 | 2022 Acadia, 2021 Acadia, 2020 Acadia +32 |
| 24-NA-102 | Service bulletin | Electrical System, Back Over Prevention | Feb 20, 2025 | 2025 Acadia, 2025 Terrain |
| 22-NA-144 | Service bulletin | Structure, Electrical System | Feb 20, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +1 |
| 19-NA-129 | Service bulletin | Suspension | Feb 20, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +4 |
| 05-08-51-001L | Service bulletin | Structure | Feb 20, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIT6335 | Service bulletin | — | Feb 19, 2025 | 2025 Acadia, 2024 Acadia, 2024 Canyon +5 |
| 22-NA-068 | Service bulletin | Electrical System, Structure | Feb 19, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +16 |
| PIT6340 | Service bulletin | — | Feb 18, 2025 | 2025 Canyon, 2024 Canyon |
| PIT6339 | Service bulletin | — | Feb 18, 2025 | 2025 Acadia, 2024 Acadia, 2025 Yukon |
| PIT6276A | Service bulletin | — | Feb 18, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +20 |
| PIT5744E | Service bulletin | — | Feb 18, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +15 |
| PIT5551Q | Service bulletin | — | Feb 18, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +59 |
| PIP6008D | Service bulletin | — | Feb 18, 2025 | 2025 Yukon, 2024 Yukon, 2023 Yukon +2 |
| N24-247143 | Over-the-air update | — | Feb 18, 2025 | 2025 Acadia, 2024 Acadia, 2025 Terrain |
| 16-NA-109 | Service bulletin | Steering, Equipment | Feb 18, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +86 |
| N24-245063 | Over-the-air update | — | Feb 17, 2025 | 2022 Sierra |
| N23-242899 | Over-the-air update | — | Feb 17, 2025 | 2024 Sierra |
| 25-NA-032 | Service bulletin | Engine, Electrical System | Feb 17, 2025 | 2023 Sierra, 2022 Sierra, 2021 Sierra +5 |
| PIT6328A | Service bulletin | — | Feb 15, 2025 | 2022 Acadia, 2022 Canyon, 2022 Savana +5 |
| PIT6186E | Service bulletin | — | Feb 15, 2025 | 2025 Sierra, 2024 Sierra, 2025 Yukon |
| PIT6167G | Service bulletin | — | Feb 15, 2025 | 2025 Acadia, 2024 Acadia |
| PIT6120B | Service bulletin | — | Feb 15, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +5 |
| PIT6105C | Service bulletin | — | Feb 15, 2025 | 2025 Acadia, 2024 Acadia, 2024 Canyon +5 |
| PIT5986C | Service bulletin | — | Feb 15, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +12 |
| PIP6045 | Service bulletin | — | Feb 15, 2025 | 2025 Acadia, 2024 Acadia |
| PIP6044 | Service bulletin | — | Feb 15, 2025 | 2025 Acadia, 2024 Acadia |
| 23-NA-102 | Service bulletin | Electrical System, Power Train | Feb 15, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +5 |
| PIT6334 | Service bulletin | — | Feb 14, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +15 |
| PIT6331A | Service bulletin | — | Feb 14, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6323A | Service bulletin | — | Feb 14, 2025 | 2025 Sierra |
| PIT6155C | Service bulletin | — | Feb 14, 2025 | 2025 Acadia, 2024 Acadia, 2024 Sierra |
| 24-NA-270 | Service bulletin | Structure | Feb 14, 2025 | 2025 Sierra, 2024 Sierra |
| 21-NA-138 | Service bulletin | Suspension | Feb 14, 2025 | 2020 Sierra, 2019 Sierra, 2018 Sierra +22 |
| PIT6280A | Service bulletin | Structure, Exterior Lighting | Feb 13, 2025 | 2025 Sierra |
| PIT6144E | Service bulletin | Suspension | Feb 13, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +6 |
| N242489790 | Service campaign | — | Feb 13, 2025 | 2025 Sierra, 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| 25-NA-030 | Service bulletin | Service Brakes, Electrical System | Feb 13, 2025 | 2025 Terrain |
| 24-NA-264 | Service bulletin | Power Train | Feb 13, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +9 |
| 07-00-89-037V | Service bulletin | — | Feb 13, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIT6336 | Service bulletin | Structure | Feb 12, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra |
| PIT6132B | Service bulletin | — | Feb 12, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +17 |
| 24-NA-077 | Service bulletin | Structure, Equipment | Feb 12, 2025 | 2025 Sierra, 2024 Sierra |
| 23-NA-086 | Service bulletin | Exterior Lighting | Feb 12, 2025 | 2025 Acadia, 2024 Acadia |
| 16-NA-019 | Service bulletin | Power Train | Feb 12, 2025 | 2016 Acadia, 2025 Canyon, 2024 Canyon +29 |
| PIE0808A | Service bulletin | Engine | Feb 11, 2025 | 2024 Canyon, 2023 Canyon |
| 25-NA-029 | Service bulletin | Service Brakes, Electrical System | Feb 11, 2025 | 2025 Acadia, 2024 Acadia |
| 22-NA-215 | Service bulletin | Electrical System, Equipment | Feb 11, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT5479G | Service bulletin | — | Feb 7, 2025 | 2025 Canyon, 2024 Canyon, 2023 Canyon +27 |
| PIP6022 | Service bulletin | — | Feb 7, 2025 | 2025 Sierra |
| PIP5994B | Service bulletin | — | Feb 7, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2024 Sierra |
| 25-NA-024 | Service bulletin | Electrical System, Exterior Lighting | Feb 7, 2025 | 2025 Terrain |
| 24-NA-155 | Service bulletin | Electrical System | Feb 7, 2025 | 2023 Canyon |
| PIT6059B | Service bulletin | — | Feb 6, 2025 | 2022 Acadia, 2022 Canyon, 2022 Savana +5 |
| 24-NA-048 | Service bulletin | Service Brakes, Forward Collision Avoidance | Feb 6, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +25 |
| PIT6333 | Service bulletin | — | Feb 5, 2025 | 2024 Acadia |
| PIT6331 | Service bulletin | — | Feb 5, 2025 | 2025 Sierra |
| PIT6224A | Service bulletin | — | Feb 5, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD |
| PIT5990C | Service bulletin | — | Feb 5, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +9 |
| PIP6042 | Service bulletin | — | Feb 5, 2025 | 2025 Terrain |
| 24-NA-127 | Service bulletin | Electrical System | Feb 5, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +3 |
| PIP5175F | Service bulletin | Power Train | Feb 3, 2025 | 2022 Canyon, 2021 Canyon, 2020 Canyon +16 |
| N242489010 | Service campaign | Fuel/Propulsion System | Feb 3, 2025 | 2025 Terrain |
| N232428991 | Service campaign | — | Feb 3, 2025 | 2024 Sierra |
| 20-NA-175 | Service bulletin | Structure | Feb 1, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +6 |
| 19-NA-257 | Service bulletin | Structure | Feb 1, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +4 |
| PIT6329 | Service bulletin | — | Jan 31, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra |
| PIP5982A | Service bulletin | — | Jan 31, 2025 | 2024 Canyon, 2023 Canyon, 2025 Sierra +8 |
| 21-NA-043 | Service bulletin | Wheels, Engine | Jan 31, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +86 |
| 10-08-110-001L | Service bulletin | Vehicle Speed Control, Structure | Jan 31, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIT6328 | Service bulletin | — | Jan 30, 2025 | 2022 Acadia, 2022 Canyon, 2022 Savana +5 |
| 25-NA-003 | Service bulletin | Service Brakes, Structure | Jan 30, 2025 | 2025 Hummer EV, 2024 Hummer EV |
| 22-NA-244 | Warranty extension | Structure, Equipment | Jan 30, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +76 |
| 22-NA-074 | Service bulletin | Engine | Jan 30, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +81 |
| PIT6304A | Service bulletin | Suspension | Jan 29, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6202D | Service bulletin | Structure | Jan 29, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIT6144D | Service bulletin | Suspension | Jan 29, 2025 | 2024 Hummer EV, 2023 Hummer EV, 2024 Yukon +4 |
| PIT5689K | Service bulletin | — | Jan 29, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +13 |
| N242450630 | Service campaign | — | Jan 29, 2025 | 2022 Sierra |
| N242438501-02 | Service bulletin | — | Jan 29, 2025 | 2024 Sierra 2500HD, 2024 Sierra 3500HD |
| 24-NA-261 | Service bulletin | Electrical System | Jan 29, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +5 |
| 23-NA-064 | Service bulletin | Electrical System, Equipment | Jan 29, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +50 |
| PIE0812 | Service bulletin | Fuel/Propulsion System, Engine | Jan 28, 2025 | 2021 Sierra, 2020 Sierra, 2021 Yukon |
| PIE0799A | Service bulletin | Engine | Jan 28, 2025 | 2025 Acadia, 2024 Acadia |
| N242454441-02 | Service campaign | Power Train | Jan 28, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +8 |
| 24-NA-148 | Service bulletin | Power Train | Jan 28, 2025 | 2024 Sierra 2500HD, 2024 Sierra 3500HD |
| 21-NA-135 | Service bulletin | Electrical System, Exterior Lighting | Jan 28, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +57 |
| PIC6591 | Service bulletin | — | Jan 27, 2025 | 2024 Acadia, 2023 Acadia, 2022 Acadia +14 |
| N242485780-01 | Service campaign | Steering | Jan 27, 2025 | 2025 Savana, 2024 Savana, 2025 Sierra 2500HD +1 |
| 24-NA-228 | Service bulletin | Electrical System | Jan 27, 2025 | 2024 Canyon |
| 01-08-42-001Q | Service bulletin | Exterior Lighting | Jan 27, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| PIT5985J | Service bulletin | — | Jan 24, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +20 |
| PIT5832U | Service bulletin | — | Jan 24, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +20 |
| PIT5544H | Service bulletin | — | Jan 24, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2023 Sierra 2500HD +17 |
| PIP6008C | Service bulletin | — | Jan 24, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +16 |
| N242472150 | Service campaign | Engine | Jan 24, 2025 | 2024 Terrain |
| 22-NA-005 | Service bulletin | Electrical System, Equipment | Jan 24, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +2 |
| 24-NA-135 | Service bulletin | Engine, Electrical System | Jan 23, 2025 | 2025 Acadia, 2024 Acadia, 2025 Terrain |
| 22-NA-210 | Service bulletin | Engine, Electrical System | Jan 23, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra |
| 22-NA-172 | Service bulletin | Wheels, Electrical System | Jan 23, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +6 |
| 17-NA-350 | Service bulletin | Trailer Hitches, Structure | Jan 23, 2025 | 2018 Sierra, 2017 Sierra, 2016 Sierra +14 |
| PIT6323 | Service bulletin | — | Jan 22, 2025 | 2025 Sierra |
| PIE0811A | Service bulletin | Electrical System, Engine | Jan 22, 2025 | 2025 Sierra, 2024 Sierra |
| PIE0753G | Service bulletin | Electrical System, Fuel/Propulsion System | Jan 22, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2025 Sierra +1 |
| N242485780 | Service campaign | Steering | Jan 22, 2025 | 2025 Savana, 2024 Savana, 2025 Sierra 2500HD +1 |
| N242482060 | Service campaign | — | Jan 22, 2025 | 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| N242451390-02 | Service campaign | — | Jan 21, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +3 |
| PIE0814 | Service bulletin | Power Train, Electrical System | Jan 18, 2025 | 2025 Terrain |
| PIT6321 | Service bulletin | — | Jan 17, 2025 | 2025 Sierra, 2024 Sierra |
| PIT5854C | Service bulletin | — | Jan 17, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +6 |
| 25-NA-012 | Service bulletin | Structure | Jan 17, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +1 |
| 21-NA-155 | Service bulletin | Electrical System, Service Brakes | Jan 17, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +21 |
| PIT6167F | Service bulletin | — | Jan 16, 2025 | 2025 Acadia, 2024 Acadia |
| PIT6044M | Service bulletin | — | Jan 16, 2025 | 2025 Hummer EV, 2024 Hummer EV |
| 24-NA-239 | Service bulletin | Electrical System, Steering | Jan 16, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +45 |
| PIE0794D | Service bulletin | Engine | Jan 15, 2025 | 2025 Acadia, 2024 Acadia |
| N242480580 | Service campaign | — | Jan 15, 2025 | 2024 Canyon |
| N24-248967 | Over-the-air update | — | Jan 15, 2025 | 2025 Yukon |
| 25-NA-006 | Service bulletin | Electrical System, Forward Collision Avoidance | Jan 15, 2025 | 2025 Acadia, 2024 Acadia |
| 24-NA-050 | Service bulletin | Service Brakes, Electrical System | Jan 15, 2025 | 2024 Sierra 2500HD, 2024 Sierra 3500HD |
| 22-NA-150 | Service bulletin | Engine, Electrical System | Jan 15, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +20 |
| 18-NA-011 | Service bulletin | Engine | Jan 15, 2025 | 2018 Sierra, 2017 Sierra, 2025 Sierra 2500HD +13 |
| PIT6317 | Service bulletin | — | Jan 14, 2025 | 2024 Acadia, 2024 Canyon, 2023 Canyon +1 |
| PIT6218A | Service bulletin | — | Jan 14, 2025 | 2025 Acadia, 2024 Acadia |
| PIT6185A | Service bulletin | Forward Collision Avoidance | Jan 14, 2025 | 2025 Sierra 2500HD, 2025 Sierra 3500HD |
| N242484740 | Service campaign | Engine | Jan 14, 2025 | 2023 Acadia, 2022 Acadia, 2022 Sierra |
| 24-NA-132 | Service bulletin | Electrical System | Jan 13, 2025 | 2023 Canyon, 2025 Hummer EV, 2024 Hummer EV +5 |
| PIT6281A | Service bulletin | — | Jan 10, 2025 | 2025 Yukon |
| PIT6209E | Service bulletin | — | Jan 10, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2023 Hummer EV +12 |
| PIT6177B | Service bulletin | — | Jan 10, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +3 |
| PIT5985H | Service bulletin | — | Jan 10, 2025 | 2025 Acadia, 2024 Acadia, 2025 Canyon +13 |
| PIT5832T | Service bulletin | — | Jan 10, 2025 | 2025 Acadia, 2024 Acadia, 2024 Canyon +17 |
| PIC6556H | Service bulletin | — | Jan 10, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +2 |
| 25-NA-002 | Service bulletin | Engine, Electrical System | Jan 10, 2025 | 2025 Terrain |
| 24-NA-173 | Service bulletin | Electrical System, Engine | Jan 10, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +9 |
| PIT6315 | Service bulletin | — | Jan 9, 2025 | 2025 Sierra, 2024 Sierra, 2025 Sierra 2500HD +3 |
| PIT6288C | Service bulletin | — | Jan 9, 2025 | 2025 Yukon |
| PIT6274B | Service bulletin | — | Jan 9, 2025 | 2025 Sierra, 2025 Terrain, 2025 Yukon |
| PIT5828D | Service bulletin | Service Brakes | Jan 9, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +21 |
| PIP6008B | Service bulletin | Power Train | Jan 9, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +19 |
| PIE0811 | Service bulletin | Fuel/Propulsion System, Engine | Jan 9, 2025 | 2025 Sierra, 2024 Sierra |
| 22-NA-218 | Service bulletin | Engine | Jan 9, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +23 |
| 21-NA-142 | Service bulletin | Service Brakes, Electrical System | Jan 9, 2025 | 2023 Acadia, 2022 Acadia, 2021 Acadia +2 |
| 09-06-04-026Z | Service bulletin | Power Train, Electrical System | Jan 9, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +80 |
| 24-NA-258 | Service bulletin | Electrical System, Engine | Jan 8, 2025 | 2025 Sierra 2500HD, 2024 Sierra 2500HD, 2025 Sierra 3500HD +1 |
| 23-NA-081 | Service bulletin | Electrical System, Engine | Jan 8, 2025 | 2025 Sierra |
| 20-NA-166 | Service bulletin | Engine | Jan 8, 2025 | 2025 Sierra, 2024 Sierra, 2023 Sierra +17 |
| PIT6313 | Service bulletin | — | Jan 7, 2025 | 2025 Acadia, 2024 Acadia, 2025 Sierra +2 |
| PIT6213B | Service bulletin | Structure | Jan 7, 2025 | 2025 Hummer EV, 2024 Hummer EV, 2025 Sierra +1 |
| PIT6207A | Service bulletin | Structure | Jan 7, 2025 | 2025 Sierra, 2024 Sierra |
| PIT6134G | Service bulletin | Service Brakes | Jan 7, 2025 | 2022 Sierra, 2021 Sierra, 2020 Sierra +1 |
| 24-NA-274 | Service bulletin | Power Train, Engine | Jan 7, 2025 | 2024 Acadia |
| 20-NA-132 | Service bulletin | Electrical System, Equipment | Jan 7, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| 07-00-89-037U | Service bulletin | — | Jan 4, 2025 | 2025 Acadia, 2024 Acadia, 2023 Acadia +84 |
| 24-NA-073 | Service bulletin | Service Brakes | Jan 3, 2025 | 2024 Sierra, 2023 Sierra, 2022 Sierra +4 |