Service bulletin 21-NA-043
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11011709 |
| Published by NHTSA | 2024-12-10 |
| Manufacturer's number | 21-NA-043 |
| Manufacturer's date | 2024-11-05 |
| NHTSA component | STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER |
NHTSA's summary
This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Body and frame, Brakes, Engine, Wheels
| BRIGHTDROP EV600 | 2022 |
|---|---|
| BRIGHTDROP ZEVO 400 | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| BRIGHTDROP ZEVO 600 | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| BUICK CASCADA | 2016, 2017, 2018, 2019 |
| BUICK ENCLAVE | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| BUICK ENCORE | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
| BUICK ENCORE | 2023 to 2025 |
| BUICK ENCORE GX | 2020, 2021, 2022, 2023, 2024, 2025 |
| BUICK ENVISION | 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| BUICK ENVISTA | 2024, 2025 |
| BUICK LACROSSE | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| BUICK LACROSSE | 2020 |
| BUICK LESABRE | 2013 |
| BUICK LUCERNE | 2011 |
| BUICK LUCERNE | 2012 |
| BUICK REGAL | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| BUICK REGAL TOURX | 2018 |
| BUICK REGAL TOURX | 2020 |
| BUICK VERANO | 2012, 2013, 2014, 2015, 2016, 2017 |
| CADILLAC ATS | 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| CADILLAC ATS-V | 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC CT4 | 2020, 2021, 2022, 2023, 2024, 2025 |
| CADILLAC CT5 | 2020, 2021, 2022, 2023, 2024, 2025 |
| CADILLAC CT6 | 2013 to 2015 |
| CADILLAC CT6 | 2016, 2017, 2018, 2019, 2020 |
| CADILLAC CT6 | 2021 |
| CADILLAC CTS | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| CADILLAC CTS-V | 2011, 2012 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC CTS-V | 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC CTS-V | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC DTS | 2011 |
| CADILLAC DTS | 2012 |
| CADILLAC ELR | 2014, 2015, 2016, 2017 |
| CADILLAC ESCALADE | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CADILLAC ESCALADE ESV | 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE ESV | 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CADILLAC ESCALADE EXT | 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE EXT 1500 | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE HYBRID | 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| CADILLAC ESCALADE IQ | 2025 |
| CADILLAC LYRIQ | 2023, 2024, 2025 |
| CADILLAC SRX | 2011, 2012, 2013, 2014, 2015, 2016 |
| CADILLAC STS | 2011 |
| CADILLAC STS | 2012 |
| CADILLAC XT4 | 2018 |
| CADILLAC XT4 | 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CADILLAC XT5 | 2013 to 2016 |
| CADILLAC XT5 | 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CADILLAC XT6 | 2020, 2021, 2022, 2023, 2024, 2025 |
| CADILLAC XTS | 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| CADILLAC XTS | 2020 |
| CHEVROLET 3500 | 2014 to 2015 |
| CHEVROLET 3500 | 2016 |
| CHEVROLET 3500 | 2017 to 2019 |
| CHEVROLET 3500 | 2020 |
| CHEVROLET 3500 | 2021 |
| CHEVROLET 3500 | 2022 |
| CHEVROLET 3500HD | 2024 |
| CHEVROLET 4500 | 2016 |
| CHEVROLET 4500 | 2017 to 2019 |
| CHEVROLET 4500 | 2020 |
| CHEVROLET 4500 | 2022 |
| CHEVROLET 4500HD | 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| CHEVROLET 4500XD | 2017, 2018, 2019, 2020, 2021, 2022 |
| CHEVROLET 5500HD | 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| CHEVROLET 5500XD | 2018, 2019, 2020, 2021, 2022 |
| CHEVROLET 6500 | 2019 |
| CHEVROLET 6500HD | 2019 to 2023 |
| CHEVROLET AVALANCHE | 2011, 2012, 2013 |
| CHEVROLET AVALANCHE | 2014 |
| CHEVROLET AVALANCHE 1500 | 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET AVALANCHE 2500 | 2013 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET AVEO | 2011 |
| CHEVROLET BLAZER | 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET BLAZER EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET BOLT EUV | 2022, 2023 |
| CHEVROLET BOLT EV | 2017, 2018, 2019, 2020, 2021, 2022, 2023 |
| CHEVROLET BOLT EV | 2024 |
| CHEVROLET BRIGHTDROP 400 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET BRIGHTDROP 600 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET C3500 | 2018 |
| CHEVROLET CAMARO | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| CHEVROLET CAPRICE | 2011 to 2018 |
| CHEVROLET CAPRICE POLICE PURSUIT | 2012 to 2017 |
| CHEVROLET CAPTIVA | 2011 to 2018 |
| CHEVROLET CAPTIVA SPORT | 2011, 2012, 2013, 2014 |
| CHEVROLET CHEVEROLET SS | 2014 to 2017 |
| CHEVROLET CITY EXPRESS | 2015, 2016 |
| CHEVROLET CITY EXPRESS | 2018 |
| CHEVROLET COLORADO | 2011, 2012 |
| CHEVROLET COLORADO | 2013 to 2014 |
| CHEVROLET COLORADO | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET CORVETTE | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET CORVETTE E-RAY | 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET CORVETTE ZR1 | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET CRUZE | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| CHEVROLET EQUINOX | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET EQUINOX EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 |
| CHEVROLET EXPRESS | 2023 |
| CHEVROLET EXPRESS 1500 | 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS 2500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS 2500 | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS 3500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS 4500 | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS 4500 | 2014 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS 4500 | 2016 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET EXPRESS CUTAWAY VAN | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET G VAN BUS | 2011 |
| CHEVROLET G4500 | 2018 |
| CHEVROLET HHR | 2011 |
| CHEVROLET IMPALA | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| CHEVROLET LOW CAB FORWARD 3500 | 2016 to 2019 |
| CHEVROLET LOW CAB FORWARD 4500 | 2016 to 2017 |
| CHEVROLET LOW CAB FORWARD 5500 | 2016 to 2017 |
| CHEVROLET LOW CAB FORWARD 6500 | 2018 |
| CHEVROLET LOW CAB FORWARD N SERIES | 2025 |
| CHEVROLET LUMINA | 2014 |
| CHEVROLET MALIBU | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET MALIBU ECO | 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET MALIBU HYBRID | 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 1500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 2500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 3500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 4500 | 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 5500 | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 5500 | 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 6500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 6500 | 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO 6500 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SILVERADO LT | 2018 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SONIC | 2011 |
| CHEVROLET SONIC | 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 |
| CHEVROLET SPARK | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
| CHEVROLET SPARK EV | 2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
| CHEVROLET SUBURBAN | 2024 |
| CHEVROLET SUBURBAN 1500 | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN 1500 | 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET SUBURBAN 2500 | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET TAHOE HYBRID | 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TAHOE POLICE PURSUIT | 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET TRAILBLAZER | 2013 to 2015 |
| CHEVROLET TRAILBLAZER | 2017 to 2020 |
| CHEVROLET TRAILBLAZER | 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET TRAVERSE | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET TRAX | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| CHEVROLET VOLT | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
| CHEVROLET duplicate SILVERADO 5500 | 2019 |
| GMC 3500HD | 2024 |
| GMC ACADIA | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| GMC CANYON | 2011, 2012, 2013 |
| GMC CANYON | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| GMC ENVOY | 2011 to 2013 |
| GMC G VAN BUS | 2011 |
| GMC G3500 | 2017 to 2018 |
| GMC HUMMER EV PICKUP | 2022, 2023, 2024, 2025 |
| GMC SAVANA | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 |
| GMC SAVANA 1500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 2500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 2500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 3500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 3500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA 3500 | 2025 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SAVANA CUTAWAY VAN | 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 1500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 2500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA 3500 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA DENALI | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it) |
| GMC SIERRA EV | 2024, 2025 (the catalog's model; the bulletin names a series or trim of it) |
| GMC TERRAIN | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| GMC YUKON | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| GMC YUKON DENALI | 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON DENALI | 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON DENALI XL | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON HYBRID | 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL | 2011 |
| GMC YUKON XL | 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| GMC YUKON XL 1500 | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL 1500 | 2012 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL 1500 | 2023 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL 2500 | 2011 (the catalog's model; the bulletin names a series or trim of it) |
| GMC YUKON XL 2500 | 2012, 2013 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2026232 | 2026-05-14. Wheels |
|---|---|
| 26V304000 | 2026-05-14. WHEELS:HUB |
| 2026020 | 2026-01-22. Brakes |
| 26V031000 | 2026-01-22. PARKING BRAKE |
| 25V768000 | 2025-11-06. SERVICE BRAKES, HYDRAULIC:POWER ASSIST |
| 2025351 | 2025-06-25. Brakes |
| 2025350 | 2025-06-25. Structure |
| 25V433000 | 2025-06-25. PARKING BRAKE |
| 25V390000 | 2025-06-12. SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING:SWITCH/SENSOR/FLOAT |
| 2025225 | 2025-04-24. Engine |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| N262570770-03 | 2026-10-16. Service campaign. Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator. |
|---|---|
| N262576260 | 2026-10-15. Service campaign. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition that could cause a small exhaust leak at the catalytic converter inlet. Dealers are to replace the catalytic converter inlet clamp and to inspect the catalytic converter – replacing it if damage is observed. The repairs will be made at no charge to the customer. |
| N262570770-02 | 2026-09-25. Service campaign. Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator. |
| N262570770-01 | 2026-09-18. Service campaign. Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator. |
| N262570770 | 2026-09-15. Service campaign. Certain vehicles may have a condition in which the thermal break tabs induce stress into the radiator causing a coolant leak. Dealers are to cut the thermal break tabs on the radiator. |
| N242484750-02 | 2026-09-01. Warranty extension. Special Coverage. Certain 2022 model year Buick Encore GX and Chevrolet Trailblazer vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Additionally, a message may be displayed indicating the vehicle’s available engine power is reduced. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after January 14, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to January 14, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the turbocharger as necessary. The repairs will be made at no charge to the customer. |
| N262552620 | 2026-05-11. Service campaign. Certain vehicles may have a condition that could cause the cylinder 2 glow plug to fail. If this failure occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate and a diagnostic trouble code will set. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 11, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 11, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the cylinder 2 glow plug as necessary. The repairs will be made at no charge to the customer. |
| N262548050 | 2026-04-24. Service bulletin. This message is to inform dealers that Special Coverage N262548050 is being temporarily suspended for the models above. Involved vehicles will be temporarily removed from IVH. Dealers will be notified when repairs can be resumed. We apologize for any inconvenience this situation may cause. |
| N262548050 | 2026-04-23. Service campaign. Certain vehicles, may have a condition that could cause the Catalytic Converter to fail. If this failure occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Dealers are to replace the Catalytic Converter as necessary. The repairs will be made at no charge to the customer. |
| N252536751-01 | 2026-04-20. Warranty extension. Special Coverage. Certain vehicles listed above may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after April 17, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to April 17, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to update the control valve body spacer plate, actuator feed valve and spring in the valve body. The repairs will be made at no charge to the customer. |