Manufacturer communications · 2026
Buick bulletins dated 2026
179 communications, newest first. All Buick bulletins →
Bulletins
179 bulletins
| Number | Kind | Component | Dated | Model years |
|---|---|---|---|---|
| GM UPDATE N25-250552 | Over-the-air update | — | Oct 26, 2026 | 2022 Encore, 2021 Encore, 2020 Encore +1 |
| CABIN & DRIVING 2026.4 | Over-the-air update | — | Oct 26, 2026 | 2026 Envision |
| PIT6368F | Service bulletin | — | Oct 24, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave +1 |
| INFOTAINMENT 2026.3 | Over-the-air update | — | Oct 23, 2026 | 2025 Enclave, 2024 Enclave |
| GATEWAY 2026.3 | Over-the-air update | — | Oct 23, 2026 | 2025 Enclave, 2026 Envision |
| CABIN & DRIVING 2026.3 | Over-the-air update | — | Oct 23, 2026 | 2026 Enclave |
| PIC6611H | Service bulletin | — | Oct 22, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| INFOTAINMENT 2026.4 | Over-the-air update | — | Oct 20, 2026 | 2025 Envision |
| PIP6045C | Service bulletin | — | Oct 16, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave |
| PIC6626B | Service bulletin | — | Oct 16, 2026 | 2023 Encore, 2022 Encore |
| TELEMATICS 2026.3 | Over-the-air update | — | Oct 8, 2026 | 2027 Enclave |
| PIT6110L | Service bulletin | — | Oct 7, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +6 |
| PIP6137 | Service bulletin | — | Oct 7, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave |
| PIT6457C | Service bulletin | — | Sep 28, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave +14 |
| PIT6368E | Service bulletin | — | Sep 28, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave +1 |
| PIC6540K | Service bulletin | — | Sep 28, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave +14 |
| PIT5698F | Service bulletin | — | Sep 26, 2026 | 2019 Cascada, 2018 Cascada, 2017 Cascada +51 |
| PIP6126 | Service bulletin | — | Sep 26, 2026 | 2026 Envision |
| 663.10 | Over-the-air update | — | Sep 25, 2026 | 2025 Envision |
| N262558690-02 | Service campaign | Fuel/Propulsion System | Sep 23, 2026 | 2022 Enclave |
| PIT6524A | Service bulletin | — | Sep 22, 2026 | 2026 Enclave |
| N262558690 | Service campaign | Fuel/Propulsion System | Sep 16, 2026 | 2022 Enclave |
| PIT6426C | Service bulletin | — | Sep 15, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave |
| PIC6629F | Service bulletin | — | Sep 10, 2026 | 2026 Enclave, 2025 Enclave, 2026 Encore +8 |
| PIT5995B | Service bulletin | — | Sep 4, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +7 |
| PIP4902W | Service bulletin | — | Sep 4, 2026 | 2019 Cascada, 2018 Cascada, 2017 Cascada +51 |
| PIT6546 | Service bulletin | — | Sep 2, 2026 | 2026 Envision |
| PIT6544 | Service bulletin | — | Sep 2, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +1 |
| N262558690-01 | Service campaign | Fuel/Propulsion System | Sep 1, 2026 | 2022 Enclave |
| N242484750-02 | Warranty extension | Engine | Sep 1, 2026 | 2022 Encore |
| N242450640-02 | Warranty extension | Engine | Sep 1, 2026 | 2021 Encore |
| N232407740-03 | Warranty extension | Engine | Sep 1, 2026 | 2020 Encore |
| PIT6533B | Service bulletin | — | Aug 28, 2026 | 2027 Enclave, 2026 Enclave |
| PIT6196A | Service bulletin | — | Aug 28, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +4 |
| PIT6541 | Service bulletin | — | Aug 27, 2026 | 2027 Enclave, 2026 Enclave, 2025 Enclave +11 |
| PIT6503E | Service bulletin | — | Aug 27, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIT6503D | Service bulletin | — | Aug 21, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIC6551C | Service bulletin | — | Aug 20, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +18 |
| PIC6660 | Service bulletin | — | Aug 19, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6534 | Service bulletin | — | Aug 18, 2026 | 2027 Enclave |
| PIT6533A | Service bulletin | — | Aug 14, 2026 | 2027 Enclave, 2026 Enclave |
| PIT6503C | Service bulletin | — | Aug 12, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIP6130 | Service bulletin | — | Aug 11, 2026 | 2026 Enclave |
| PIP6116A | Service bulletin | — | Aug 11, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6368D | Service bulletin | — | Aug 5, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave |
| PIT6512A | Service bulletin | — | Aug 3, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +3 |
| PIT6517C | Service bulletin | — | Jul 30, 2026 | 2026 Enclave |
| PIT6110K | Service bulletin | — | Jul 28, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +6 |
| PIT6002C | Service bulletin | — | Jul 27, 2026 | 2017 Enclave, 2016 Enclave |
| PIT6218D | Service bulletin | — | Jul 24, 2026 | 2026 Enclave, 2025 Enclave |
| PIC6548B | Service bulletin | — | Jul 23, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +7 |
| PIT5099J | Service bulletin | — | Jul 21, 2026 | 2019 Cascada, 2018 Cascada, 2017 Cascada +49 |
| PIP6120B | Service bulletin | — | Jul 17, 2026 | 2026 Encore |
| N262546590-01 | Service campaign | Engine | Jul 15, 2026 | 2026 Enclave, 2025 Enclave |
| 662.30 | Over-the-air update | — | Jul 14, 2026 | 2025 Enclave, 2024 Enclave, 2026 Envision |
| 662.12 | Over-the-air update | — | Jul 14, 2026 | 2024 Enclave |
| 662.11 | Over-the-air update | — | Jul 14, 2026 | 2025 Enclave, 2024 Enclave |
| 662.10 | Over-the-air update | — | Jul 14, 2026 | 2026 Enclave, 2025 Encore, 2024 Encore |
| N25-252332 | Over-the-air update | — | Jul 9, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIT5966F | Service bulletin | — | Jun 23, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +18 |
| PIT6520 | Service bulletin | — | Jun 18, 2026 | 2026 Enclave, 2025 Enclave |
| PIP6120A | Service bulletin | — | Jun 18, 2026 | 2026 Encore |
| PIT6503B | Service bulletin | — | Jun 17, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| 662.20 | Over-the-air update | — | Jun 16, 2026 | 2026 Envision |
| PIC6637B | Service bulletin | — | Jun 10, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6521 | Service bulletin | — | Jun 9, 2026 | 2025 Enclave |
| PIP6033B | Service bulletin | — | Jun 8, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6524 | Service bulletin | — | Jun 5, 2026 | 2026 Enclave, 2025 Enclave |
| PIT6426B | Service bulletin | — | Jun 5, 2026 | 2026 Enclave, 2025 Enclave |
| PIP6031E | Service bulletin | — | Jun 5, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIC6548A | Service bulletin | — | Jun 5, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6503A | Service bulletin | — | Jun 3, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +9 |
| PIP6120 | Service bulletin | — | Jun 3, 2026 | 2026 Encore |
| PIP6116 | Service bulletin | — | Jun 3, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIP6032C | Service bulletin | — | Jun 3, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +5 |
| PIC6611G | Service bulletin | — | May 29, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6519 | Service bulletin | — | May 27, 2026 | 2026 Enclave, 2025 Enclave, 2026 Encore +3 |
| N262547330 | Service campaign | — | May 27, 2026 | 2026 Enclave, 2025 Enclave |
| PIT6518 | Service bulletin | — | May 22, 2026 | 2024 Envision |
| PIT6426A | Service bulletin | — | May 22, 2026 | 2026 Enclave, 2025 Enclave |
| PIP6113 | Service bulletin | — | May 19, 2026 | 2016 LaCrosse, 2017 Regal, 2016 Regal +2 |
| PIT6393L | Service bulletin | — | May 14, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIC6540J | Service bulletin | — | May 14, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +12 |
| PIT6513 | Service bulletin | — | May 11, 2026 | 2023 Envision, 2022 Envision |
| PIT6512 | Service bulletin | — | May 11, 2026 | 2025 Enclave, 2025 Envision, 2024 Envision +1 |
| PIP6101B | Service bulletin | — | May 11, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +1 |
| PIC6626A | Service bulletin | — | May 11, 2026 | 2023 Encore, 2022 Encore |
| PIC6551B | Service bulletin | — | May 11, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +18 |
| PIC6540H | Service bulletin | — | May 11, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +12 |
| PIC6423A | Service bulletin | — | May 11, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +18 |
| PIC6629E | Service bulletin | — | May 8, 2026 | 2026 Enclave, 2025 Enclave, 2026 Encore +8 |
| N262547330-01 | Service campaign | — | May 8, 2026 | 2026 Enclave, 2025 Enclave |
| PIC6566C | Service bulletin | — | May 6, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +1 |
| 661.10 | Over-the-air update | — | May 6, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +1 |
| PIP6112 | Service bulletin | — | May 4, 2026 | 2026 Encore |
| PIC6540G | Service bulletin | — | Apr 30, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +12 |
| PIT6393K | Service bulletin | — | Apr 28, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIC6611F | Service bulletin | — | Apr 28, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIC6637A | Service bulletin | — | Apr 27, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6509 | Service bulletin | — | Apr 23, 2026 | 2025 Enclave |
| PIT6502B | Service bulletin | — | Apr 23, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIC6629D | Service bulletin | — | Apr 23, 2026 | 2026 Enclave, 2025 Enclave, 2026 Encore +8 |
| PIP6029A | Service bulletin | — | Apr 21, 2026 | 2023 Encore, 2022 Encore, 2021 Encore +1 |
| PIC6611E | Service bulletin | — | Apr 21, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIT6507 | Service bulletin | — | Apr 20, 2026 | 2021 Envision |
| PIT6502A | Service bulletin | — | Apr 17, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave |
| PIT6503 | Service bulletin | — | Apr 14, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +9 |
| 661.21 | Over-the-air update | — | Apr 10, 2026 | 2025 Envision |
| 661.20 | Over-the-air update | — | Apr 10, 2026 | 2026 Envision, 2024 Envision |
| 661.11 | Over-the-air update | — | Apr 10, 2026 | 2025 Envision |
| PIC6627C | Service bulletin | — | Apr 9, 2026 | 2026 Enclave |
| 661.30 | Over-the-air update | — | Apr 9, 2026 | 2024 Envision |
| PIT6502 | Service bulletin | — | Apr 7, 2026 | 2026 Enclave, 2025 Enclave |
| PIT3271Q | Service bulletin | — | Apr 1, 2026 | 2019 Cascada, 2018 Cascada, 2017 Cascada +49 |
| N262546590 | Service campaign | Fuel/Propulsion System | Apr 1, 2026 | 2026 Enclave, 2025 Enclave |
| PIP6102A | Service bulletin | — | Mar 30, 2026 | 2026 Enclave, 2025 Enclave |
| PIC6553B | Service bulletin | — | Mar 30, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +7 |
| PIT6479A | Service bulletin | — | Mar 27, 2026 | 2026 Enclave, 2025 Enclave |
| PIT6368C | Service bulletin | — | Mar 27, 2026 | 2026 Enclave, 2025 Enclave |
| N25-250552 | Over-the-air update | — | Mar 21, 2026 | 2024 Enclave, 2023 Enclave, 2022 Enclave +9 |
| PIT6413A | Service bulletin | — | Mar 17, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +1 |
| N252542200 | Service campaign | Fuel/Propulsion System | Mar 16, 2026 | 2026 Enclave |
| 654.11 | Over-the-air update | — | Mar 14, 2026 | 2026 Enclave |
| 653.22 | Over-the-air update | — | Mar 14, 2026 | 2025 Enclave, 2024 Enclave |
| 653.21 | Over-the-air update | — | Mar 14, 2026 | 2025 Enclave, 2024 Enclave |
| PIP6104 | Service bulletin | — | Mar 9, 2026 | 2019 Cascada, 2018 Cascada, 2017 Cascada +49 |
| PIP4902V | Service bulletin | — | Mar 9, 2026 | 2019 Cascada, 2018 Cascada, 2017 Cascada +49 |
| PIT6393J | Service bulletin | — | Mar 6, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIT6394E | Service bulletin | — | Mar 5, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIC6629C | Service bulletin | — | Mar 5, 2026 | 2026 Enclave, 2025 Enclave, 2026 Encore +8 |
| PIC6611D | Service bulletin | — | Mar 5, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| PIP6101A | Service bulletin | — | Mar 3, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envista +1 |
| PIT6425D | Service bulletin | — | Mar 2, 2026 | 2019 Cascada, 2026 Enclave, 2025 Enclave +29 |
| PIT6394D | Service bulletin | — | Feb 26, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +3 |
| PIP6095C | Service bulletin | — | Feb 26, 2026 | 2026 Envista, 2025 Envista |
| N252540910 | Service campaign | Engine | Feb 25, 2026 | 2026 Enclave |
| PIT6458A | Service bulletin | — | Feb 20, 2026 | 2026 Enclave, 2025 Enclave |
| PIT6456D | Service bulletin | — | Feb 20, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| N252516900-01 | Emissions | Fuel/Propulsion System | Feb 19, 2026 | 2022 Envision, 2021 Envision |
| PIT6394C | Service bulletin | — | Feb 17, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +3 |
| PIT6486 | Service bulletin | — | Feb 16, 2026 | 2026 Envision, 2025 Envision, 2024 Envision |
| PIP6095B | Service bulletin | — | Feb 13, 2026 | 2026 Envista, 2025 Envista |
| PIP5841J | Service bulletin | — | Feb 12, 2026 | 2025 Envision, 2024 Envision, 2023 Envision |
| PIP6102 | Service bulletin | — | Feb 11, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave |
| N262544850 | Service campaign | Fuel/Propulsion System | Feb 9, 2026 | 2026 Enclave |
| A252528630-03 | Service campaign | Fuel/Propulsion System | Feb 9, 2026 | 2026 Envista, 2025 Envista |
| PIP6101 | Service bulletin | — | Feb 7, 2026 | 2026 Enclave, 2025 Enclave |
| PIT6482 | Service bulletin | — | Feb 5, 2026 | 2026 Enclave, 2025 Enclave |
| N252516900 | Emissions | Fuel/Propulsion System | Feb 5, 2026 | 2022 Envision, 2021 Envision |
| PIP6095A | Service bulletin | — | Feb 4, 2026 | 2026 Envista, 2025 Envista |
| PIP5841H | Service bulletin | — | Feb 4, 2026 | 2025 Envision, 2024 Envision, 2023 Envision +2 |
| PIT6456C | Service bulletin | — | Feb 3, 2026 | 2026 Enclave, 2025 Enclave |
| 654.50 | Over-the-air update | — | Jan 30, 2026 | 2025 Enclave |
| 654.30 | Over-the-air update | — | Jan 30, 2026 | 2025 Enclave |
| 654.20 | Over-the-air update | — | Jan 30, 2026 | 2026 Enclave, 2025 Enclave, 2024 Envision |
| 654.10 | Over-the-air update | — | Jan 30, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIT6479 | Service bulletin | — | Jan 29, 2026 | 2026 Enclave, 2025 Enclave |
| PIT6456B | Service bulletin | — | Jan 29, 2026 | 2026 Enclave, 2025 Enclave |
| PIT6478 | Service bulletin | — | Jan 28, 2026 | 2026 Enclave |
| PIP6099A | Service bulletin | — | Jan 28, 2026 | 2026 Enclave, 2026 Envision |
| PIC6626 | Service bulletin | — | Jan 28, 2026 | 2023 Encore, 2022 Encore |
| A252528630-02 | Service campaign | Fuel/Propulsion System | Jan 28, 2026 | 2026 Envista, 2025 Envista |
| PIT5985K | Service bulletin | — | Jan 27, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +5 |
| PIP6070B | Service bulletin | — | Jan 24, 2026 | 2026 Envision, 2025 Envision, 2024 Envision |
| PIP5929G | Service bulletin | — | Jan 22, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +7 |
| PIT6456A | Service bulletin | — | Jan 20, 2026 | 2026 Enclave, 2025 Enclave |
| PIP6099 | Service bulletin | — | Jan 20, 2026 | 2026 Enclave, 2026 Envision |
| PIT6425C | Service bulletin | — | Jan 16, 2026 | 2019 Cascada, 2026 Enclave, 2025 Enclave +29 |
| PIT6471 | Service bulletin | — | Jan 15, 2026 | 2026 Enclave, 2025 Enclave, 2026 Envision +2 |
| PIP6098 | Service bulletin | — | Jan 14, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +23 |
| PIT6457B | Service bulletin | — | Jan 12, 2026 | 2026 Enclave, 2025 Enclave, 2024 Enclave +12 |
| PIP6095 | Service bulletin | — | Jan 12, 2026 | 2026 Envista, 2025 Envista |
| PIT6369B | Service bulletin | — | Jan 10, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +4 |
| PIP6070A | Service bulletin | — | Jan 10, 2026 | 2025 Envision, 2024 Envision |
| PIP5841G | Service bulletin | — | Jan 10, 2026 | 2025 Envision, 2024 Envision, 2023 Envision +2 |
| PIC6566B | Service bulletin | — | Jan 10, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +1 |
| PIP4902U | Service bulletin | — | Jan 8, 2026 | 2019 Cascada, 2018 Cascada, 2017 Cascada +49 |
| PIC6637 | Service bulletin | — | Jan 8, 2026 | 2026 Encore, 2025 Encore, 2024 Encore +3 |
| A252528630-01 | Service campaign | Fuel/Propulsion System | Jan 7, 2026 | 2026 Envista, 2025 Envista |