Service bulletin 010601011L

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)
Type	Service bulletin
NHTSA id	10186104
Published by NHTSA	2021-02-01
Manufacturer's number	010601011L
Manufacturer's date	2020-12-16
NHTSA component	ENGINE AND ENGINE COOLING; EQUIPMENT

NHTSA's summary

This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

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, Equipment and accessories

Vehicles listed
BUICK CASCADA	2016, 2017, 2018, 2019
BUICK CENTURY	2005
BUICK ENCLAVE	2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
BUICK ENCORE	2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
BUICK ENCORE GX	2020, 2021
BUICK ENVISION	2016, 2017, 2018, 2019, 2020, 2021
BUICK LACROSSE	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
BUICK LESABRE	2005
BUICK LESABRE	2006
BUICK LUCERNE	2006, 2007, 2008, 2009, 2010, 2011
BUICK LUCERNE	2012
BUICK PARK AVENUE	2005
BUICK RAINIER	2005, 2006, 2007
BUICK REGAL	2005
BUICK REGAL	2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
BUICK RENDEZVOUS	2005, 2006, 2007
BUICK TERRAZA	2005, 2006, 2007
BUICK TERRAZA	2008
BUICK VERANO	2012, 2013, 2014, 2015, 2016, 2017
CADILLAC ATS	2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC CT4	2020, 2021
CADILLAC CT5	2020, 2021
CADILLAC CT6	2016, 2017, 2018, 2019, 2020
CADILLAC CTS	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC CTS-V	2014 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC DEVILLE	2005
CADILLAC DTS	2006, 2007, 2008, 2009, 2010, 2011
CADILLAC ELR	2014, 2015, 2016, 2017
CADILLAC ESCALADE	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CADILLAC ESCALADE ESV	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 ESV	2017, 2018, 2019, 2020, 2021
CADILLAC ESCALADE EXT	2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT 1500	2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE NA	2021 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SRX	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CADILLAC STS	2005, 2006, 2007, 2008, 2009, 2010, 2011
CADILLAC XLR	2005, 2006, 2007, 2008, 2009
CADILLAC XT4	2019, 2020, 2021
CADILLAC XT5	2017, 2018, 2019, 2020, 2021
CADILLAC XT6	2020, 2021
CADILLAC XTS	2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET ASTRO	2005
CHEVROLET AVALANCHE	2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET AVALANCHE 1500	2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 2500	2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVEO	2005, 2006
CHEVROLET AVEO	2009, 2010, 2011
CHEVROLET BLAZER	2005
CHEVROLET BLAZER	2019, 2020, 2021
CHEVROLET BOLT EV	2017, 2018, 2019, 2020, 2021
CHEVROLET C SERIES	2005 to 2009
CHEVROLET CAMARO	2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET CAPRICE	2011 to 2016
CHEVROLET CAPTIVA	2013 to 2015
CHEVROLET CAVALIER	2005
CHEVROLET CHEVEROLET SS	2014 to 2017
CHEVROLET CITY EXPRESS	2015, 2016
CHEVROLET COBALT	2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET COLORADO	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET COLORADO	2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET CORVETTE	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET CRUZE	2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET EQUINOX	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET EXPRESS	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET HHR	2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET IMPALA	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET MALIBU	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET MONTE CARLO	2005, 2006, 2007
CHEVROLET SILVERADO 1500	2006, 2007, 2008, 2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500	2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500	2017, 2018, 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD	2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 2500	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 2500	2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 4500	2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SONIC	2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET SPARK	2013, 2014, 2015
CHEVROLET SPARK	2017, 2018, 2019, 2020
CHEVROLET SPARK EV	2014, 2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SSR	2005, 2006
CHEVROLET SUBURBAN	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET T SERIES	2005
CHEVROLET T SERIES	2010
CHEVROLET TAHOE	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET TRAILBLAZER	2005, 2006, 2007, 2008, 2009
CHEVROLET TRAILBLAZER	2021
CHEVROLET TRAVERSE	2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET TRAX	2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET UPLANDER	2005, 2006, 2007, 2008, 2009
CHEVROLET VENTURE	2005
CHEVROLET VOLT	2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
GMC ACADIA	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
GMC C SERIES	2005 to 2006
GMC CANYON	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
GMC CANYON	2015, 2016, 2017, 2018, 2019, 2020, 2021
GMC ENVOY	2005, 2006, 2007, 2008, 2009
GMC ENVOY XL	2002, 2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XL	2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV	2005 (the catalog's model; the bulletin names a series or trim of it)
GMC JIMMY	2000 to 2004
GMC JIMMY CLASSIC	2005
GMC SAFARI	2005
GMC SAVANA	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
GMC SIERRA 1500	2014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 1500	2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 2500	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 2500	2020, 2021 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI	2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI	2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
GMC TERRAIN	2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
GMC TOPKICK	2000 to 2013
GMC YUKON	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
GMC YUKON DENALI	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL	2005, 2006, 2007, 2008, 2009, 2010, 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
HUMMER H2	2005, 2006, 2007, 2008, 2009, 2010
HUMMER H3	2006, 2007, 2008, 2009, 2010
PONTIAC AZTEK	2001, 2002, 2003, 2004, 2005
PONTIAC BONNEVILLE	2000, 2001, 2002, 2003, 2004, 2005
PONTIAC BONNEVILLE	2006
PONTIAC G3	2008, 2009, 2010
PONTIAC G5	2007, 2008, 2009, 2010
PONTIAC G6	2005, 2006, 2007, 2008, 2009, 2010
PONTIAC G8	2008, 2009, 2010
PONTIAC GRAND AM	2000, 2001, 2002, 2003, 2004, 2005
PONTIAC GRAND PRIX	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
PONTIAC GTO	2005, 2006
PONTIAC GTO	2007
PONTIAC MONTANA	2005 to 2009
PONTIAC PURSUIT	2005, 2006
PONTIAC PURSUIT	2007 to 2009
PONTIAC SOLSTICE	2006, 2007, 2008, 2009, 2010
PONTIAC SUNFIRE	2000, 2001, 2002, 2003, 2004, 2005
PONTIAC TORRENT	2006, 2007, 2008, 2009
PONTIAC VIBE	2005, 2006, 2007, 2008, 2009, 2010
SAAB 9-7X	2005, 2006, 2007, 2008, 2009
SATURN ASTRA	2008, 2009
SATURN ASTRA	2010
SATURN AURA	2007, 2008, 2009, 2010
SATURN ION	2003, 2004, 2005, 2006, 2007
SATURN L200	2005
SATURN L300	2005
SATURN OUTLOOK	2007, 2008, 2009, 2010
SATURN RELAY	2005, 2006, 2007
SATURN RELAY	2008
SATURN SKY	2007, 2008, 2009, 2010
SATURN VUE	2005, 2006, 2007, 2008, 2009, 2010

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

Recalls for the same vehicles and component
2025225	2025-04-24. Engine
25V274000	2025-04-24. ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
2022160	2022-03-31. Accessories
21V496000	2021-07-01. EQUIPMENT:ELECTRICAL:ENGINE BLOCK HEATER
21V346000	2021-05-13. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
2020165	2020-04-16. Accessories
2019494	2019-10-03. Accessories
2019449	2019-09-06. Engine
19V642000	2019-09-06. ENGINE; ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
19V428000	2019-06-11. EQUIPMENT

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
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.
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.
N252494003-02	2026-01-21. 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.
00-06-01-026R	2025-12-03. Service bulletin. This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
25-NA-339	2025-11-12. 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.
23-NA-170	2025-10-25. Service bulletin. This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
23-NA-153	2025-10-25. 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.
N252508350	2025-10-21. 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.