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Service bulletin 06-00-89-031H

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10222770
Published by NHTSA2022-10-11
Manufacturer's number06-00-89-031H
Manufacturer's date2022-09-16
NHTSA componentPOWER TRAIN; ENGINE AND ENGINE COOLING

NHTSA's summary

This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.

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

Engine, Transmission and driveline

Vehicles listed
BUICK ALLURE2006, 2007, 2008, 2009
BUICK CASCADA2016, 2017, 2018, 2019
BUICK CENTURY2003, 2004, 2005
BUICK ENCLAVE2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
BUICK ENCORE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
BUICK ENCORE GX2020, 2021, 2022
BUICK ENVISION2016, 2017, 2018, 2019, 2020, 2021, 2022
BUICK LACROSSE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
BUICK LACROSSE2020
BUICK LESABRE2003, 2004, 2005
BUICK LESABRE2006
BUICK LESABRE2013
BUICK LUCERNE2006, 2007, 2008, 2009, 2010, 2011
BUICK LUCERNE2012
BUICK PARK AVENUE2003, 2004, 2005
BUICK RAINIER2003
BUICK RAINIER2004, 2005, 2006, 2007
BUICK REGAL2003, 2004
BUICK REGAL2005
BUICK REGAL2008 to 2010
BUICK REGAL2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
BUICK REGAL TOURX2018
BUICK RENDEZVOUS2003, 2004, 2005, 2006, 2007
BUICK TERRAZA2005, 2006, 2007
BUICK TERRAZA2008
BUICK VERANO2012, 2013, 2014, 2015, 2016, 2017
CADILLAC ATS2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC ATS-V2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CATERA2003
CADILLAC CT42020, 2021, 2022
CADILLAC CT52020, 2021, 2022
CADILLAC CT62013 to 2015
CADILLAC CT62016, 2017, 2018, 2019, 2020
CADILLAC CT62021
CADILLAC CTS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC CTS-V2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS-V2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS-V2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS-V2018 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC DEVILLE2003, 2004, 2005
CADILLAC DTS2004 to 2005
CADILLAC DTS2006, 2007, 2008, 2009, 2010, 2011
CADILLAC DTS2012
CADILLAC ESCALADE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
CADILLAC ESCALADE ESV2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2017, 2018, 2019, 2020, 2021, 2022, 2023
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT 15002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE HYBRID2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE NA2021 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SEVILLE2003, 2004
CADILLAC SLS2004
CADILLAC SRX2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CADILLAC SRX2017 to 2019
CADILLAC STS2003 to 2004
CADILLAC STS2005, 2006, 2007, 2008, 2009, 2010, 2011
CADILLAC STS2012
CADILLAC XLR2003, 2004, 2005, 2006, 2007, 2008, 2009
CADILLAC XT42019, 2020, 2021, 2022, 2023
CADILLAC XT52013 to 2016
CADILLAC XT52017, 2018, 2019, 2020, 2021, 2022, 2023
CADILLAC XT62020, 2021, 2022, 2023
CADILLAC XTS2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC XTS2020
CHEVROLET 35002014 to 2015
CHEVROLET 35002016
CHEVROLET 35002017 to 2019
CHEVROLET 35002020
CHEVROLET 35002021
CHEVROLET 35002022
CHEVROLET 45002016
CHEVROLET 45002017 to 2019
CHEVROLET 45002020
CHEVROLET 45002022
CHEVROLET 4500HD2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET 4500XD2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET 5500HD2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET 5500XD2018, 2019, 2020, 2021, 2022
CHEVROLET 65002019
CHEVROLET 6500HD2022
CHEVROLET ASTRO2003 to 2005
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET AVALANCHE2014
CHEVROLET AVALANCHE 15002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002003, 2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVEO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
CHEVROLET BLAZER2003, 2004, 2005
CHEVROLET BLAZER2006 to 2009
CHEVROLET BLAZER2019, 2020, 2021, 2022, 2023
CHEVROLET C SERIES2003 to 2009
CHEVROLET C35002018
CHEVROLET C45002003 to 2010
CHEVROLET C4500 NA2008
CHEVROLET C55002003 to 2008
CHEVROLET C65002003 to 2009
CHEVROLET C75002003 to 2009
CHEVROLET C7500NA2008
CHEVROLET C85002003 to 2009
CHEVROLET CAMARO2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET CAPRICE2003 to 2004
CHEVROLET CAPRICE2011 to 2018
CHEVROLET CAPRICE POLICE PURSUIT2012 to 2017
CHEVROLET CAPTIVA2008 to 2018
CHEVROLET CAPTIVA SPORT2009
CHEVROLET CAPTIVA SPORT2010, 2011, 2012
CHEVROLET CAVALIER2003, 2004, 2005
CHEVROLET CHEVEROLET SS2014 to 2017
CHEVROLET CHEVY VAN2003
CHEVROLET CHEYENNE2017
CHEVROLET CITY EXPRESS2015, 2016
CHEVROLET CITY EXPRESS2018
CHEVROLET CLASSIC2004 to 2006
CHEVROLET COBALT2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET COBALT2011 to 2017
CHEVROLET COBALT SS2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COLORADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET COLORADO2013 to 2014
CHEVROLET COLORADO2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET CONVENTIONAL2003
CHEVROLET CORVETTE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET CORVETTE Z062005, 2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CORVETTE ZR12009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CRUZE2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET DENALI2003 to 2006
CHEVROLET EPICA2005
CHEVROLET EQUINOX2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET EXPRESS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET EXPRESS 15002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 15002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 25002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 25002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 35002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 35002012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 35002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 45002009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 45002012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 45002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 45002016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS CUTAWAY2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS CUTAWAY VAN2006, 2007, 2008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET F SERIES2004 to 2006
CHEVROLET G SERIES2003
CHEVROLET G VAN BUS2003 to 2011
CHEVROLET G15002003 to 2008
CHEVROLET G25002003 to 2005
CHEVROLET G35002003 to 2005
CHEVROLET G35002008
CHEVROLET G45002018
CHEVROLET HHR2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET IMPALA2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET IMPALA (GMX 211)2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET INCOMPLETE/CUTAWAY C32003 to 2005
CHEVROLET LOW CAB FORWARD 35002016 to 2019
CHEVROLET LOW CAB FORWARD 45002016 to 2017
CHEVROLET LOW CAB FORWARD 55002016 to 2017
CHEVROLET LOW CAB FORWARD 65002018
CHEVROLET LUMINA2008
CHEVROLET LUMINA2014
CHEVROLET MALIBU2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET MALIBU CLASSIC2003 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET MALIBU CLASSIC2004, 2005
CHEVROLET MALIBU CLASSIC2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET MALIBU ECO2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET MALIBU HYBRID2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET MALIBU HYBRID2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET MALIBU MAXX2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET MONTE CARLO2003, 2004, 2005, 2006, 2007
CHEVROLET MONTE CARLO2008
CHEVROLET MONTE CARLO2010
CHEVROLET N3002014 to 2016
CHEVROLET N3002018
CHEVROLET N300 MAX2017
CHEVROLET OPTRA2004, 2005, 2006, 2007
CHEVROLET OPTRA2016
CHEVROLET ORLANDO2017
CHEVROLET S/T BLAZER2003 to 2005
CHEVROLET S102003 to 2007
CHEVROLET S102016 to 2018
CHEVROLET SILVERADO 15002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 45002019, 2020, 2021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 55002019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 55002023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 65002019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 65002021, 2022, 2023 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SONIC2011
CHEVROLET SONIC2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET SONOMA2003
CHEVROLET SPARK2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET SS2018
CHEVROLET SSR2003, 2004, 2005, 2006
CHEVROLET SSR2007
CHEVROLET SUBURBAN2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
CHEVROLET SUBURBAN 15002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002021, 2022 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 25002003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 25002008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)

And 176 more lines, in the JSON.

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
26V2890002026-05-07. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
26V0850002026-02-13. POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
20260612026-02-12. Powertrain
20252252025-04-24. Engine
25V2740002025-04-24. ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
20251182025-03-06. Powertrain
25V1480002025-03-06. POWER TRAIN:AUTOMATIC TRANSMISSION
20246372024-10-24. Powertrain
24V7970002024-10-24. POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
20231422023-03-16. Powertrain

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
N2625526202026-05-11. 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.
N252494003-022026-01-21. Service campaign. Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 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 23, 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 May 23, 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 engine. The repairs will be made at no charge to the customer.
PIE0815A2025-12-04. Service bulletin. This engineering information (EI) closure ends the need for gathering further information from technicians/field in regard to the Service Engine Soon (SES) Lamp illuminated on DIC, Suspect Non-OE Catalytic Converters and/or Exhaust Systems w/DTCs P013F, P014A, P014B and/or P013E Set.
25-NA-0802025-12-03. Service bulletin. This service bulletin provides a procedure to overhaul the control valve to replace a plate and worn down check ball to correct the customers concern of No Reverse, No Shift Past Third Gear - DTC P2732 Set.
00-06-01-026R2025-12-03. Service bulletin. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
25-NA-3392025-11-12. Service bulletin. Under Field Actions N252494000, N252494001, the service procedure includes performing a PICO test on vehicle engines within the identified suspect VIN population. If the engine passes the PICO test, the engine oil will be changed from 0W20 to Mobil 1 Supercar 0W40 dexosR. From that point forward, the engine must use 0W40 dexosR oil products for all future oil change services.
N2525083602025-11-03. Warranty extension. Special Coverage. Certain vehicles listed above 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 November 3, 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 November 3, 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.
23-NA-1702025-10-25. Service bulletin. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
23-NA-1532025-10-25. Service bulletin. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
N2525083502025-10-21. Service campaign. Certain vehicles listed above, may have a condition that could cause the engine coolant thermostat to open at a lower temperature than intended. If this condition were to occur, the Malfunction Indicator Lamp (Check Engine Light) will illuminate and a diagnostic trouble code will set. Additionally in some cases, the engine cooling fans may run after the engine is switched off. 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 October 21, 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 October 21, 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 engine coolant thermostat as necessary. The repairs will be made at no charge to the customer.