⌘K
Federal filingsHome›Bulletins› Chevrolet

Chevrolet filed it with NHTSA. The number finds it.

Manufacturer communications

Chevrolet service bulletins and campaigns

Photo: Christian Buehner / Unsplash

3,327 Chevrolet communications on file with a page here: 2893 service bulletins, 284 service campaigns, 128 over-the-air updates, 14 warranty extensions, 6 emissions, 2 others. Every bulletin a Chevrolet model-year page lists, plus every service campaign, warranty extension, over-the-air update and emissions notice Chevrolet filed since 2016, whether or not the vehicle has a page.

Chevrolet’s warranty extensions and special-coverage programs are also in their own list and one list with every other make’s, with the term each runs to.

Your Chevrolet

Every bulletin for your Chevrolet

Pick the model and year and its page opens at the bulletin list: every campaign, warranty extension and over-the-air update Chevrolet filed with NHTSA for it, and the repair bulletins that go with them.

Get the next one by email. Pick a model and we send a weekly email, only in a week when its manufacturer files something new. Nothing else; one-click unsubscribe.

Have the VIN?

Look it up by VIN

Decoded by NHTSA in your browser, then its bulletin list opens.

Holding a letter? Type its number on the bulletins page.

Service campaigns, warranty extensions, updates

Source: the kinds an owner is written to about
NumberKindComponentDatedModel years
INFOTAINMENT 2026.3.3Over-the-air update—Oct 30, 20262025 Brightdrop 400, 2026 Brightdrop 400, 2025 Brightdrop 600 +1
INFOTAINMENT 2026.3.2Over-the-air update—Oct 30, 20262025 Brightdrop 400, 2025 Brightdrop 600
ENERGY 2026.3Over-the-air update—Oct 29, 20262025 Equinox, 2024 Equinox, 2025 Silverado +3
ASSISTED DRIVING & CABIN 2026.3Over-the-air update—Oct 29, 20262025 Brightdrop 400, 2026 Brightdrop 400, 2025 Brightdrop 600 +1
TELEMATICS 2026.3Over-the-air update—Oct 28, 20262027 Blazer, 2027 Bolt, 2027 Corvette +6
INFOTAINMENT 2026.4Over-the-air update—Oct 28, 20262026 Colorado, 2025 Colorado, 2024 Colorado +2
DRIVING & CABIN 2026.3Over-the-air update—Oct 28, 20262026 Corvette
N262565450Service campaignElectrical SystemOct 26, 20262025 Blazer, 2024 Blazer, 2025 Equinox +3
GM UPDATE V176Over-the-air update—Oct 26, 20262025 Blazer
GM UPDATE N25-250552Over-the-air update—Oct 26, 20262022 Blazer, 2021 Blazer, 2020 Blazer +35
N262572131-01Service campaignEngineOct 23, 20262026 Silverado 2500HD, 2026 Silverado 3500HD
INFOTAINMENT 2026.3Over-the-air update—Oct 23, 20262025 Blazer, 2024 Blazer, 2027 Bolt +6
GATEWAY 2026.3Over-the-air update—Oct 23, 20262024 Blazer, 2023 Colorado, 2026 Corvette +19
CABIN & DRIVING 2026.3Over-the-air update—Oct 23, 20262027 Suburban, 2027 Tahoe, 2026 Traverse
CABIN & DRIVING 2026.4Over-the-air update—Oct 21, 20262023 Colorado, 2027 Equinox
CABIN & CONNECTIVITY 2026.3Over-the-air update—Oct 21, 20262025 Equinox, 2027 Suburban, 2026 Suburban +2
N262566800Service campaignEngineOct 20, 20262026 Equinox, 2025 Equinox
N262545360-01Service campaignService BrakesOct 20, 20262026 Equinox, 2025 Equinox, 2024 Equinox
TELEMATICS 2026.4Over-the-air update—Oct 19, 20262026 Equinox
GM UPDATE 20.50Over-the-air update—Oct 19, 20262026 Equinox
N262570770-03Service campaignEngineOct 16, 20262025 Blazer, 2024 Blazer
N262576260Service campaignEngineOct 15, 20262019 Silverado
DRIVING & CONNECTIVITY 2026.3Over-the-air update—Oct 15, 20262025 Corvette, 2024 Corvette, 2026 Equinox
CONNECTIVITY 2026.3Over-the-air update—Oct 15, 20262024 Equinox, 2025 Brightdrop 400, 2026 Brightdrop 400 +2
ASSISTED DRIVING 2026.3Over-the-air update—Oct 15, 20262027 Equinox, 2026 Equinox, 2025 Equinox +1
N262545360Service campaignService BrakesOct 7, 20262026 Equinox, 2025 Equinox, 2024 Equinox
N262559000-01Service campaignFuel/Propulsion SystemOct 5, 20262027 Bolt
663.40Over-the-air update—Oct 5, 20262026 Silverado
663.10Over-the-air update—Oct 3, 20262023 Corvette, 2026 Silverado, 2026 Suburban +3
UPDATE GATEWAY 2026.3Over-the-air update—Oct 1, 20262025 Equinox
7.90Over-the-air update—Sep 26, 20262027 Equinox
N262570770-02Service campaignEngineSep 25, 20262025 Blazer, 2024 Blazer
N262568370Service campaignExterior LightingSep 23, 20262027 Bolt
N262558690-02Service campaignFuel/Propulsion SystemSep 23, 20262022 Blazer, 2022 Camaro, 2023 Colorado +6
662.80Over-the-air update—Sep 22, 20262024 Traverse
N262570770-01Service campaignEngineSep 18, 20262025 Blazer, 2024 Blazer
N262567720Service campaignPower TrainSep 17, 20262026 Silverado 2500HD, 2026 Silverado 3500HD
N262558690Service campaignFuel/Propulsion SystemSep 16, 20262022 Blazer, 2022 Camaro, 2023 Colorado +6
N262570770Service campaignEngineSep 15, 20262025 Blazer, 2024 Blazer
N242452131-02EmissionsFuel/Propulsion SystemSep 11, 20262024 Colorado, 2023 Colorado, 2024 Silverado +1
N262566020Service campaignStructureSep 10, 20262027 Bolt
N232428992Emissions—Sep 10, 20262024 Silverado
662.20Over-the-air update—Sep 8, 20262027 Bolt, 2026 Corvette, 2024 Corvette +8
CABIN 2026.3Over-the-air update—Sep 3, 20262027 Bolt
N262558690-01Service campaignFuel/Propulsion SystemSep 1, 20262022 Blazer, 2022 Camaro, 2023 Colorado +7
N262558680Service campaignSeatsSep 1, 20262024 Traverse
N252541251-02Service campaign—Sep 1, 20262024 Corvette, 2023 Corvette, 2022 Corvette +2
N242484750-02Warranty extensionEngineSep 1, 20262022 Trailblazer
662.10Over-the-air update—Sep 1, 20262026 Blazer, 2025 Blazer, 2024 Blazer +17
N262572131Service campaignEngineAug 28, 20262026 Silverado 2500HD, 2026 Silverado 3500HD
663.20Over-the-air update—Aug 27, 20262025 Colorado, 2024 Colorado, 2026 Silverado +4
N252516700-01Service campaign—Aug 26, 20262026 Silverado, 2025 Silverado, 2019 Silverado
AUTOMATION (ASSISTED DRIVING) 2026.2Over-the-air update—Aug 25, 20262025 Blazer, 2024 Blazer
ASSISTED DRIVING & CABIN 2026.2Over-the-air update—Aug 24, 20262026 Blazer, 2025 Blazer
N252502891-01Service campaignPower TrainAug 20, 20262024 Blazer, 2024 Silverado, 2025 Brightdrop 600
N252502890-01Service campaignPower TrainAug 20, 20262024 Blazer, 2025 Equinox, 2024 Equinox
N242471460-01Service campaignPower TrainAug 20, 20262024 Blazer, 2024 Equinox
N252530430-01Service campaign—Aug 19, 20262023 Bolt EUV, 2022 Bolt EUV, 2023 Bolt EV +3
662.30Over-the-air update—Aug 19, 20262026 Corvette, 2025 Corvette, 2024 Corvette +10
N26-254904Over-the-air update—Aug 18, 20262026 Silverado
DRIVING & ENERGY 2026.3Over-the-air update—Aug 15, 20262027 Bolt
N252501791Service campaign—Aug 13, 20262023 Colorado
662.31Over-the-air update—Aug 12, 20262025 Silverado
662.40Over-the-air update—Aug 11, 20262026 Equinox, 2026 Silverado, 2025 Silverado +1
N252541251-01Service campaign—Aug 5, 20262024 Corvette, 2021 Corvette, 2020 Corvette
662.21Over-the-air update—Aug 5, 20262026 Colorado, 2026 Silverado, 2025 Silverado +1
N262568830Service campaignEngineAug 4, 20262026 Blazer, 2026 Colorado, 2026 Silverado
N242452130-01Service campaignFuel/Propulsion SystemAug 4, 20262024 Colorado, 2023 Colorado, 2024 Silverado +1
INFOTAINMENT 2026.2Over-the-air update—Aug 3, 20262026 Blazer
19.00Over-the-air update—Aug 1, 20262026 Equinox
663.30Over-the-air update—Jul 31, 20262026 Colorado
N26-F163BXOver-the-air update—Jul 28, 20262025 Silverado, 2025 Silverado 2500HD
N252519860Service campaign—Jul 28, 20262026 Silverado, 2025 Silverado, 2024 Silverado +1
N252528241-01Service campaignService BrakesJul 23, 20262026 Equinox, 2025 Equinox
662.11Over-the-air update—Jul 23, 20262026 Silverado 2500HD, 2025 Traverse, 2024 Traverse
N26-F172AJOver-the-air update—Jul 16, 20262026 Equinox
662.50Over-the-air update—Jul 16, 20262026 Equinox
N262546590-01Service campaignEngineJul 15, 20262026 Colorado, 2025 Colorado, 2024 Colorado +4
N252541251Service campaignExterior LightingJul 15, 20262024 Corvette
662.12Over-the-air update—Jul 14, 20262024 Traverse
N25-252332Over-the-air update—Jul 9, 20262026 Blazer, 2025 Blazer, 2024 Blazer +17
N262560510Service campaignSteeringJun 25, 20262027 Bolt
661.30Over-the-air update—Jun 18, 20262026 Blazer, 2025 Blazer, 2024 Blazer +11
N262556930-01Service campaignPower TrainJun 17, 20262026 Colorado
663.11Over-the-air update—Jun 17, 20262023 Colorado
N262559000Service campaignFuel/Propulsion SystemJun 11, 20262027 Bolt
N262560680Service campaignPower TrainJun 10, 20262026 Silverado 2500HD, 2026 Silverado 3500HD
N262560540Service campaignSuspensionJun 10, 20262027 Bolt
661.42Over-the-air update—Jun 10, 20262024 Silverado
661.20Over-the-air update—Jun 10, 20262026 Blazer, 2025 Blazer, 2024 Blazer +14
661.51Over-the-air update—Jun 9, 20262024 Silverado
661.10Over-the-air update—Jun 9, 20262026 Blazer, 2025 Blazer, 2024 Blazer +22
661.50Over-the-air update—Jun 8, 20262024 Blazer, 2026 Suburban, 2026 Tahoe
N252528480Service campaign—Jun 4, 20262024 Silverado
N262558300Service campaign—Jun 3, 20262026 Silverado
661.60Over-the-air update—Jun 3, 20262026 Suburban, 2026 Tahoe
N262556930Service campaignPower TrainJun 2, 20262026 Colorado
661.40Over-the-air update—Jun 2, 20262026 Blazer, 2024 Blazer, 2026 Equinox +3
654.40Over-the-air update—Jun 2, 20262026 Equinox, 2025 Equinox, 2025 Suburban +1
N242468490-02Service campaignElectrical SystemMay 28, 20262025 Blazer, 2024 Blazer
N262547330Service campaign—May 27, 20262026 Blazer, 2025 Blazer, 2024 Blazer +12
N25-250552Over-the-air update—May 12, 20262025 Blazer, 2024 Blazer, 2023 Blazer +38
N262552620Service campaignEngineMay 11, 20262021 Suburban, 2021 Tahoe
661.41Over-the-air update—May 11, 20262024 Silverado
N262547330-01Service campaign—May 8, 20262026 Blazer, 2025 Blazer, 2024 Blazer +12
661.22Over-the-air update—May 5, 20262026 Corvette, 2025 Suburban, 2025 Tahoe
N252541130Service campaign—May 4, 20262026 Traverse
N252537031Service campaign—May 4, 20262026 Silverado 2500HD, 2025 Silverado 2500HD, 2024 Silverado 2500HD +3
N252528241Service campaignService BrakesMay 4, 20262026 Equinox, 2025 Equinox
.30Over-the-air update—May 1, 20262026 Equinox
661.21Over-the-air update—Apr 28, 20262024 Colorado, 2026 Corvette, 2025 Suburban +1
N262548050Service campaignEngineApr 24, 20262019 Silverado
N262547670Service campaignStructureApr 20, 20262026 Silverado
N252536751-01Warranty extensionWheelsApr 20, 20262022 Suburban, 2022 Tahoe
N252536751Warranty extensionWheelsApr 17, 20262022 Suburban, 2022 Tahoe
N262546010Service campaign—Apr 15, 20262026 Express
N262546840Service campaign—Apr 13, 20262026 Silverado, 2025 Silverado
N252521591Service campaign—Apr 10, 20262026 Suburban, 2026 Tahoe
N262546590Service campaignFuel/Propulsion SystemApr 1, 20262026 Traverse, 2025 Traverse, 2024 Traverse
N252529080Service campaignElectrical SystemApr 1, 20262026 Silverado, 2025 Silverado, 2024 Silverado +2
N252528650-01Service campaign—Mar 26, 20262026 Equinox, 2025 Equinox, 2024 Equinox
N262544790Service campaignEngineMar 16, 20262025 LOW Cab Forward 3500, 2025 LOW Cab Forward 4500, 2025 LOW Cab Forward 5500 +2
N252542200Service campaignFuel/Propulsion SystemMar 16, 20262026 Traverse
654.11Over-the-air update—Mar 14, 20262025 Colorado, 2026 Traverse
653.22Over-the-air update—Mar 14, 20262025 Traverse, 2024 Traverse
653.21Over-the-air update—Mar 14, 20262025 Traverse, 2024 Traverse, 2025 Brightdrop 400 +1
18.50Over-the-air update—Mar 9, 20262026 Equinox
N252541510Service campaign—Mar 3, 20262026 Blazer, 2025 Blazer, 2024 Blazer +19
654.20Over-the-air update—Feb 27, 20262026 Blazer, 2026 Equinox, 2025 Equinox +12
N252536390Service campaign—Feb 25, 20262026 Silverado 2500HD, 2026 Silverado 3500HD
654.70Over-the-air update—Feb 25, 20262025 Suburban, 2025 Tahoe
661.11Over-the-air update—Feb 24, 20262024 Colorado
N252540910Service campaignEngineFeb 19, 20262026 Traverse
N252516900-01EmissionsFuel/Propulsion SystemFeb 19, 20262021 Blazer, 2021 Camaro, 2022 Equinox +3
654.10Over-the-air update—Feb 17, 20262026 Blazer, 2025 Equinox, 2024 Equinox +7
N252536560Service campaign—Feb 16, 20262026 Silverado, 2026 Silverado 2500HD, 2026 Silverado 3500HD
N252541790Service campaignVisibility/WiperFeb 12, 20262026 Colorado
N252541390Service campaign—Feb 12, 20262026 Corvette
N252538330Service campaign—Feb 11, 20262025 Express
N252528650Service campaign—Feb 11, 20262025 Equinox, 2024 Equinox
N252521591-03Service campaign—Feb 11, 20262026 Equinox, 2026 Silverado, 2026 Suburban +1
N252537030Service campaign—Feb 10, 20262026 Silverado 2500HD, 2025 Silverado 2500HD, 2024 Silverado 2500HD +3
N252521591-02Service campaign—Feb 10, 20262026 Equinox, 2026 Silverado, 2026 Suburban +1
N262544850Service campaignFuel/Propulsion SystemFeb 9, 20262026 Traverse
A252528630-03Service campaignFuel/Propulsion SystemFeb 9, 20262026 Trax, 2025 Trax
N252516900EmissionsFuel/Propulsion SystemFeb 5, 20262021 Blazer, 2021 Camaro, 2022 Equinox +5
654.50Over-the-air update—Feb 3, 20262026 Equinox, 2025 Equinox, 2025 Suburban +2
654.30Over-the-air update—Feb 3, 20262026 Equinox, 2025 Equinox, 2024 Equinox +2
N252524761Service campaign—Jan 28, 20262023 Equinox
N252524760Service campaign—Jan 28, 20262023 Equinox
A252528630-02Service campaignFuel/Propulsion SystemJan 28, 20262026 Trax, 2025 Trax
N252530430Service campaign—Jan 27, 20262023 Bolt EUV, 2022 Bolt EUV, 2023 Bolt EV +3
N252515590Service campaignElectrical SystemJan 27, 20262024 Silverado, 2023 Silverado, 2022 Silverado +3
N252494250-01Service campaign—Jan 27, 20262025 Blazer, 2024 Blazer, 2025 Equinox +6
653.30Over-the-air update—Jan 27, 20262025 Blazer, 2025 Equinox, 2024 Equinox +3
N252494003-02Service campaignEngineJan 21, 20262024 Silverado, 2023 Silverado, 2022 Silverado +9
N252536640Service campaign—Jan 15, 20262025 Silverado
A252528630-01Service campaignFuel/Propulsion SystemJan 7, 20262026 Trax, 2025 Trax
653.20Over-the-air update—Jan 7, 20262026 Blazer, 2025 Blazer, 2024 Blazer +5
N252534200Service campaign—Jan 6, 20262021 Silverado
N252525760Service campaign—Dec 17, 20252025 Equinox
N252531220Service campaignSteeringDec 16, 20252026 Equinox, 2025 Equinox
653.40Over-the-air update—Dec 16, 20252024 Colorado, 2025 Equinox, 2024 Equinox +2
N242488190-01Service campaign—Dec 10, 20252025 LOW Cab Forward 3500, 2025 LOW Cab Forward 4500
A252528630Service campaignFuel/Propulsion SystemDec 9, 20252026 Trax
625.42Over-the-air update—Dec 9, 20252026 Corvette
625.41Over-the-air update—Dec 4, 20252025 Corvette, 2024 Corvette
N242438500-04EmissionsFuel/Propulsion SystemNov 24, 20252024 Silverado 2500HD, 2024 Silverado 3500HD
N252527780Service campaign—Nov 20, 20252026 Silverado
N252521591-01Service campaign—Nov 20, 20252026 Suburban, 2026 Tahoe
653.10Over-the-air update—Nov 20, 20252026 Blazer, 2025 Blazer, 2024 Blazer +3
N252528020Service campaignSteeringNov 18, 20252026 Tahoe, 2025 Tahoe
N252507990Service campaign—Nov 18, 20252025 Silverado, 2025 Silverado 2500HD, 2025 Silverado 3500HD +2
652.30Over-the-air update—Nov 14, 20252025 Equinox, 2025 Silverado, 2024 Silverado +2
N252527500Service campaignSuspensionNov 12, 20252026 Silverado 2500HD, 2025 Silverado 2500HD, 2026 Silverado 3500HD +1
653.50Over-the-air update—Nov 7, 20252025 Equinox, 2024 Equinox
N252526151Service campaignFuel/Propulsion SystemNov 4, 20252025 Express
N252526150Service campaignFuel/Propulsion SystemNov 4, 20252025 Express, 2026 Silverado, 2026 Silverado 2500HD +3
N252508360Warranty extensionEngineNov 3, 20252022 Malibu
N252521980-01Service campaignService BrakesOct 31, 20252024 Blazer, 2023 Colorado
652.20Over-the-air update—Oct 27, 20252025 Blazer, 2025 Equinox, 2025 Silverado +1
N252499670Service campaignEngineOct 23, 20252021 Trax
N252521980Service campaignService BrakesOct 22, 20252024 Blazer, 2023 Colorado
N25-F163BUOver-the-air update—Oct 22, 20252026 Silverado, 2025 Silverado, 2024 Silverado +2
N252508350Service campaignEngineOct 21, 20252021 Blazer
N252525920Service campaign—Oct 20, 20252026 Silverado
N242484750-01Warranty extensionEngineOct 20, 20252022 Trailblazer
N242450640-01Warranty extensionEngineOct 20, 20252021 Trailblazer
N232401570Service campaign—Oct 16, 20252024 Blazer, 2024 Silverado
N252517790Service campaignPower TrainOct 14, 20252026 Colorado, 2025 Colorado, 2025 Express +1
N252523390Service campaignSteeringOct 9, 20252026 Silverado
N242454441 -03Service campaignPower TrainOct 9, 20252022 Silverado, 2021 Silverado, 2020 Silverado +10
N252516700Service campaign—Oct 7, 20252025 Silverado, 2024 Silverado
N252516751Service campaign—Oct 2, 20252025 Brightdrop 400, 2025 Brightdrop 600
N252516750Service campaign—Oct 2, 20252025 Brightdrop 400, 2025 Brightdrop 600
A252515200Service campaign—Oct 2, 20252024 Traverse
652.50Over-the-air update—Oct 1, 20252023 Silverado
N25-251670Over-the-air update—Sep 30, 20252024 Silverado
N252518760Service campaign—Sep 23, 20252025 Express
N252521400Service campaign—Sep 17, 20252026 Silverado
N252507500Service campaignSuspensionSep 17, 20252025 Silverado
N252508341Service campaignEngineSep 16, 20252022 Silverado, 2021 Silverado, 2023 Suburban +5
N252508340Service campaignEngineSep 16, 20252023 Silverado
N252510320Service campaign—Sep 8, 20252024 Silverado, 2023 Silverado, 2024 Suburban +3
N252510321-02Service campaign—Sep 5, 20252024 Silverado, 2023 Silverado, 2022 Silverado +9
N252510321-01Service campaign—Sep 5, 20252024 Silverado, 2023 Silverado, 2022 Silverado +7
N24-245213Over-the-air update—Sep 3, 20252024 Colorado, 2023 Colorado, 2024 Silverado +1
625.10Over-the-air update—Sep 3, 20252025 Blazer, 2024 Blazer
625.30Over-the-air update—Aug 29, 20252025 Corvette
624.30Over-the-air update—Aug 29, 20252024 Corvette
N252519910Service campaignService BrakesAug 27, 20252025 Blazer, 2025 Equinox
N252494250Service campaignWheelsAug 26, 20252025 Blazer, 2024 Blazer, 2025 Equinox +5
N242482170-01Service campaignService BrakesAug 20, 20252024 Traverse
N252512530Service campaign—Aug 18, 20252025 Tahoe
N25-F165ANOver-the-air update—Aug 18, 20252025 Colorado
N252510321Service campaign—Aug 14, 20252024 Silverado, 2023 Silverado, 2022 Silverado +5
652.10Over-the-air update—Aug 11, 20252025 Silverado, 2024 Silverado, 2025 Traverse +1
604.02Over-the-air update—Aug 11, 20252024 Blazer
N25-251032Over-the-air update—Aug 7, 20252024 Silverado, 2023 Silverado
N25-250403Over-the-air update—Aug 7, 20252025 Silverado, 2024 Silverado, 2023 Silverado
N25-250380Over-the-air update—Aug 7, 20252025 Silverado, 2024 Silverado, 2023 Silverado
N25-250307Over-the-air update—Aug 7, 20252025 Silverado, 2024 Silverado, 2023 Silverado
N252517721Service campaign—Aug 6, 20252026 Traverse
652.40Over-the-air update—Aug 5, 20252025 Silverado, 2024 Silverado
N252503960Service campaign—Aug 2, 20252025 Colorado, 2024 Colorado, 2023 Colorado
N242480631-04Service campaign—Jul 23, 20252022 Camaro, 2021 Camaro, 2020 Camaro
N242435630-05Service campaign—Jul 23, 20252023 Corvette, 2024 Silverado, 2023 Silverado +6
N24-248403 (V604.01)Over-the-air update—Jul 22, 20252024 Blazer
N252504660Service campaign—Jul 21, 20252025 Silverado, 2025 Silverado 2500HD, 2025 Silverado 3500HD
N252512260Service campaignSteeringJul 17, 20252026 Silverado, 2025 Silverado, 2024 Silverado
N252502891Service campaignEngineJul 16, 20252024 Blazer, 2024 Silverado, 2025 Brightdrop 600
N252502890Service campaignEngineJul 16, 20252025 Blazer, 2024 Blazer, 2025 Equinox +1
N25-250378 (V652.20)Over-the-air update—Jul 9, 20252025 Equinox, 2024 Equinox
N25-249763 (V652.40)Over-the-air update—Jul 9, 20252025 Equinox, 2024 Equinox
N25-249372 (V652.30)Over-the-air update—Jul 9, 20252024 Equinox
N25-249372_1 (V652.30)Over-the-air update—Jul 9, 20252025 Equinox, 2024 Equinox
N252494220Service campaignService BrakesJun 26, 20252025 Corvette, 2025 Equinox
N252494003-01Service campaignPower TrainJun 26, 20252024 Silverado, 2023 Silverado, 2022 Silverado +9
N252508800Service campaignSuspensionJun 24, 20252025 Silverado
N252494770-01Service campaign—Jun 20, 20252025 Blazer, 2024 Blazer, 2023 Blazer +149
N242480631-03Warranty extension—Jun 18, 20252022 Camaro, 2021 Camaro, 2020 Camaro
N252494770Service campaign—Jun 17, 20252025 Blazer, 2024 Blazer, 2023 Blazer +181
N25-250020Over-the-air update—Jun 17, 20252025 Colorado, 2026 Silverado 2500HD
N242452140-01Service campaign—Jun 17, 20252025 Silverado, 2024 Silverado
N25-250322Over-the-air update—Jun 16, 20252026 Equinox
N252506312Service campaign—Jun 12, 20252025 Equinox
N252506311Service campaign—Jun 12, 20252025 Equinox
N252506310Service campaign—Jun 12, 20252025 Equinox
N252503850Warranty extensionEngineJun 10, 20252023 Traverse
N242451030-03Service campaign—Jun 5, 20252023 Colorado
N25-F172AEOver-the-air update—May 28, 20252025 Blazer, 2024 Blazer, 2025 Colorado +7
N242480631-02Service campaignPower TrainMay 27, 20252021 Camaro, 2020 Camaro
N252494003Service campaignEngineMay 23, 20252024 Silverado, 2023 Silverado, 2022 Silverado +9
N24-247054Over-the-air update—May 23, 20252024 Blazer
N242480631-01Service campaignPower TrainMay 22, 20252022 Camaro, 2021 Camaro, 2020 Camaro
N242483540-01Service campaignPower TrainMay 21, 20252024 Silverado
N24-G172AEOver-the-air update—May 19, 20252025 Equinox
N24-248967Over-the-air update—May 19, 20252025 Equinox, 2025 Suburban, 2025 Tahoe
N24-F172AEOver-the-air update—May 15, 20252024 Corvette
N232427510-02Service campaign—May 15, 20252024 Blazer, 2023 Bolt EUV, 2022 Bolt EUV +9
N252504200Service campaign—May 7, 20252026 LOW Cab Forward 5500, 2025 LOW Cab Forward N Series
A252503090Service campaignService BrakesMay 7, 20252025 Trax
N252503100Service campaign—May 6, 20252025 Silverado, 2024 Silverado
N252502270Service campaign—May 6, 20252025 Suburban, 2025 Tahoe
N25-250520Over-the-air update—May 6, 20252025 Silverado, 2024 Silverado, 2024 Suburban +3
N242451390-03Service campaign—May 6, 20252025 Silverado, 2024 Silverado
N242487960-01Service campaign—May 5, 20252025 Corvette, 2024 Corvette
N242468490-01Service campaign—May 2, 20252025 Blazer, 2024 Blazer
N232427510-01Service campaign—May 1, 20252024 Blazer, 2023 Bolt EUV, 2022 Bolt EUV +9
N24-246898Over-the-air update—Apr 29, 20252024 Equinox
N232427510Service campaign—Apr 29, 20252024 Blazer, 2023 Bolt EUV, 2022 Bolt EUV +10
N25-249456Over-the-air update—Apr 22, 20252025 Blazer, 2024 Blazer
N242476670Service campaign—Apr 15, 20252025 Corvette, 2024 Corvette
N242484500Service campaignStructureApr 10, 20252024 Silverado
N242483540Service campaignPower TrainApr 1, 20252024 Silverado
N25-249834Over-the-air update—Mar 29, 20252024 Equinox, 2025 Silverado, 2024 Silverado
N242486220Service campaign—Mar 28, 20252025 Silverado 2500HD, 2025 Silverado 3500HD
N242488800Service campaign—Mar 26, 20252024 Corvette, 2021 Corvette
N24-247330Over-the-air update—Mar 22, 20252025 Traverse
N25-249243Over-the-air update—Mar 21, 20252025 Blazer
N242480630Service campaign—Mar 21, 20252022 Camaro, 2021 Camaro, 2020 Camaro
N25-249332Over-the-air update—Mar 19, 20252025 Equinox
N25-172AEOver-the-air update—Mar 19, 20252025 Corvette, 2025 Equinox, 2024 Equinox +1
N242485840Service campaign—Mar 19, 20252025 Equinox
N24-248897Over-the-air update—Mar 19, 20252025 Brightdrop 400, 2025 Brightdrop 600
N252492430Service campaignVisibility/WiperMar 18, 20252025 Blazer, 2024 Blazer
N242483980Service campaign—Mar 13, 20252025 Silverado, 2024 Silverado, 2024 Silverado 3500HD
N252495410Service campaign—Mar 12, 20252025 Express
N222383021Service campaign—Mar 12, 20252022 Silverado
N242484110Service campaignSuspensionMar 11, 20252025 Corvette
N242468490Service campaignElectrical SystemMar 10, 20252025 Blazer, 2024 Blazer
N242480631Service campaignPower TrainMar 7, 20252022 Camaro, 2021 Camaro, 2020 Camaro
N242447610Service campaign—Mar 6, 20252024 Camaro, 2023 Camaro, 2022 Camaro +2
N242486200Service campaignElectrical SystemMar 4, 20252024 Equinox
N242478850Service campaignEngineMar 3, 20252025 Equinox
N242452130Service campaignEngineMar 3, 20252024 Colorado, 2023 Colorado, 2024 Silverado +1
N242490010Service campaign—Feb 27, 20252025 Blazer
N242482641Service campaignSuspensionFeb 26, 20252024 Colorado
N242482640Service campaignSuspensionFeb 26, 20252024 Colorado
N24-248092Over-the-air update—Feb 24, 20252024 Equinox

Every bulletin, by the manufacturer’s date