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Service bulletin 090604026R

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 id10165124
Published by NHTSA2019-09-23
Manufacturer's number090604026R
Manufacturer's date2019-08-21
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

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

Vehicles listed
BUICK CASCADA2017
BUICK CASCADA2019
BUICK ENCLAVE2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
BUICK ENCORE2019
BUICK ENVISION2017, 2018, 2019
BUICK LACROSSE2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
BUICK REGAL2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CADILLAC ATS2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC CT42020
CADILLAC CT52020
CADILLAC CT62016
CADILLAC CT62019, 2020
CADILLAC CT6 PLUG-IN HYBRID2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS2007
CADILLAC CTS2009, 2010
CADILLAC CTS2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC DTS2007, 2008, 2009, 2010
CADILLAC ESCALADE2007, 2008, 2009, 2010
CADILLAC ESCALADE2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CADILLAC ESCALADE ESV2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2017, 2018, 2019, 2020
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SRX2012, 2013, 2014, 2015, 2016
CADILLAC STS2007, 2008, 2009, 2010
CADILLAC XT42019, 2020
CADILLAC XT52017, 2018, 2019, 2020
CADILLAC XT62020
CADILLAC XTS2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET AVALANCHE2007, 2008, 2009, 2010
CHEVROLET AVALANCHE2012, 2013
CHEVROLET BLAZER2019, 2020
CHEVROLET CAMARO2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET CAPRICE2012 to 2017
CHEVROLET CHEVEROLET SS2014 to 2017
CHEVROLET COLORADO2012
CHEVROLET COLORADO2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET CORVETTE2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET CORVETTE2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET EQUINOX2012, 2013, 2014, 2015, 2016, 2017, 2018
CHEVROLET EXPRESS2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET IMPALA2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET MALIBU2015
CHEVROLET MALIBU2017, 2018, 2019
CHEVROLET SILVERADO2017
CHEVROLET SILVERADO 15002007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002019, 2020 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 45002019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2007, 2008, 2009, 2010
CHEVROLET SUBURBAN2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET TAHOE2007, 2008, 2009, 2010
CHEVROLET TAHOE2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET TRAVERSE2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
GMC ACADIA2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
GMC CANYON2012
GMC CANYON2015, 2016, 2017, 2018, 2019, 2020
GMC SAVANA2007, 2008, 2009, 2010
GMC SAVANA2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
GMC SIERRA2017
GMC SIERRA 15002014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002019, 2020 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
GMC TERRAIN2012, 2013, 2014, 2015, 2016, 2017, 2018
GMC YUKON2007, 2008, 2009, 2010
GMC YUKON2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
GMC YUKON DENALI2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2007, 2008, 2009, 2010
GMC YUKON XL2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2015, 2016, 2017, 2018, 2019, 2020
HUMMER H22007, 2008, 2009
HUMMER H32007, 2008, 2009, 2010
PONTIAC GRAND PRIX2007, 2008

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

Recalls for the same vehicles and component
21V3460002021-05-13. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
20194492019-09-06. Engine
19V6420002019-09-06. ENGINE; ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS
19V3280002019-04-25. ENGINE
16V8680002016-12-02. ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
20145772014-12-18. Engine
20140052014-01-13. Engine
14V0070002014-01-13. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

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
N2625762602026-10-15. 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.
N2625480502026-04-24. 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.
N2625480502026-04-23. 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.
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.
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.
24-NA-2412025-10-16. Service bulletin. This informational bulletin advises the technician of a part number change for long block engines used in the trucks noted.
22-NA-0802025-10-16. Service bulletin. This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.
15-NA-0102025-07-07. Service bulletin. This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.
25-NA-0372025-06-26. Service bulletin. This bulletin advises the tech that the Exhaust Roller Follower may be the issue with the engine Ticking noise, misfire or rough run and what to replace if found the cause.