TSB: BUICK ACADIA, AVALANCHE, AVALANCHE 1500, C SERIES, CAMARO, CANYON, COLORADO, CORVETTE, CRUZE, CTS, ENCLAVE, ENCORE, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, IMPALA, LACROSSE, LUCERNE, MALIBU, ORLANDO, REGAL, SAVANA, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA DENALI, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SRX, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TRAVERSE, VERANO, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2005–2013)

Bulletin 03-08-46-004M — November 9, 2012

Bulletin Details

Bulletin ID03-08-46-004M
ManufacturerBUICK
ModelsACADIA, AVALANCHE, AVALANCHE 1500, C SERIES, CAMARO, CANYON, COLORADO, CORVETTE, CRUZE, CTS, ENCLAVE, ENCORE, EQUINOX, ESCALADE, ESCALADE ESV, ESCALADE EXT, ESCALADE EXT 1500, EXPRESS, IMPALA, LACROSSE, LUCERNE, MALIBU, ORLANDO, REGAL, SAVANA, SIERRA 1500 HD, SIERRA 2500, SIERRA 2500 HD, SIERRA DENALI, SILVERADO 1500, SILVERADO 1500 HD, SILVERADO 2500, SRX, STS, SUBURBAN, T SERIES, TAHOE, TERRAIN, TRAVERSE, VERANO, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL
Model Years2005–2013
Date IssuedNovember 9, 2012
Date Added to NHTSAMay 21, 2018
ComponentELECTRICAL SYSTEM
Vehicles Affected486 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

This informational bulletin provides information on part restriction and ordering process information for onstar vehicle communication interface modules.

Affected Vehicles

MakeModelYearComponent
CHEVROLET AVALANCHE 2013 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 2013 350000 EQUIPMENT
CHEVROLET AVALANCHE 2013 340000 COMMUNICATION
CHEVROLET AVALANCHE 2013 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 2013 350000 EQUIPMENT
CHEVROLET AVALANCHE 2013 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK ENCORE 2013 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2013 350000 EQUIPMENT
BUICK ENCORE 2013 340000 COMMUNICATION
BUICK ENCORE 2013 110000 ELECTRICAL SYSTEM
BUICK ENCORE 2013 350000 EQUIPMENT
BUICK ENCORE 2013 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC ESCALADE 2013 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE 2013 350000 EQUIPMENT
CADILLAC ESCALADE 2013 340000 COMMUNICATION
CADILLAC ESCALADE 2013 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE 2013 350000 EQUIPMENT
CADILLAC ESCALADE 2013 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET ORLANDO 2013 110000 ELECTRICAL SYSTEM
CHEVROLET ORLANDO 2013 350000 EQUIPMENT
CHEVROLET ORLANDO 2013 340000 COMMUNICATION
CHEVROLET ORLANDO 2013 110000 ELECTRICAL SYSTEM
CHEVROLET ORLANDO 2013 350000 EQUIPMENT
CHEVROLET ORLANDO 2013 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SIERRA 2500 2013 110000 ELECTRICAL SYSTEM
GMC SIERRA 2500 2013 350000 EQUIPMENT
GMC SIERRA 2500 2013 340000 COMMUNICATION
GMC SIERRA 2500 2013 110000 ELECTRICAL SYSTEM
GMC SIERRA 2500 2013 350000 EQUIPMENT
GMC SIERRA 2500 2013 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK VERANO 2013 110000 ELECTRICAL SYSTEM
BUICK VERANO 2013 350000 EQUIPMENT
BUICK VERANO 2013 340000 COMMUNICATION
BUICK VERANO 2013 110000 ELECTRICAL SYSTEM
BUICK VERANO 2013 350000 EQUIPMENT
BUICK VERANO 2013 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC CANYON 2012 110000 ELECTRICAL SYSTEM
GMC CANYON 2012 350000 EQUIPMENT
GMC CANYON 2012 340000 COMMUNICATION
GMC CANYON 2012 110000 ELECTRICAL SYSTEM
GMC CANYON 2012 350000 EQUIPMENT
GMC CANYON 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET CRUZE 2012 110000 ELECTRICAL SYSTEM
CHEVROLET CRUZE 2012 350000 EQUIPMENT
CHEVROLET CRUZE 2012 340000 COMMUNICATION
CHEVROLET CRUZE 2012 110000 ELECTRICAL SYSTEM
CHEVROLET CRUZE 2012 350000 EQUIPMENT
CHEVROLET CRUZE 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC CTS 2012 110000 ELECTRICAL SYSTEM
CADILLAC CTS 2012 350000 EQUIPMENT
CADILLAC CTS 2012 340000 COMMUNICATION
CADILLAC CTS 2012 110000 ELECTRICAL SYSTEM
CADILLAC CTS 2012 350000 EQUIPMENT
CADILLAC CTS 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET EXPRESS 2012 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2012 350000 EQUIPMENT
CHEVROLET EXPRESS 2012 340000 COMMUNICATION
CHEVROLET EXPRESS 2012 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2012 350000 EQUIPMENT
CHEVROLET EXPRESS 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SAVANA 2012 110000 ELECTRICAL SYSTEM
GMC SAVANA 2012 350000 EQUIPMENT
GMC SAVANA 2012 340000 COMMUNICATION
GMC SAVANA 2012 110000 ELECTRICAL SYSTEM
GMC SAVANA 2012 350000 EQUIPMENT
GMC SAVANA 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET SILVERADO 2500 2012 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2012 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2012 340000 COMMUNICATION
CHEVROLET SILVERADO 2500 2012 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2012 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC SRX 2012 110000 ELECTRICAL SYSTEM
CADILLAC SRX 2012 350000 EQUIPMENT
CADILLAC SRX 2012 340000 COMMUNICATION
CADILLAC SRX 2012 110000 ELECTRICAL SYSTEM
CADILLAC SRX 2012 350000 EQUIPMENT
CADILLAC SRX 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET TRAVERSE 2012 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2012 350000 EQUIPMENT
CHEVROLET TRAVERSE 2012 340000 COMMUNICATION
CHEVROLET TRAVERSE 2012 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2012 350000 EQUIPMENT
CHEVROLET TRAVERSE 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON XL 2012 110000 ELECTRICAL SYSTEM
GMC YUKON XL 2012 350000 EQUIPMENT
GMC YUKON XL 2012 340000 COMMUNICATION
GMC YUKON XL 2012 110000 ELECTRICAL SYSTEM
GMC YUKON XL 2012 350000 EQUIPMENT
GMC YUKON XL 2012 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK ENCLAVE 2011 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2011 350000 EQUIPMENT
BUICK ENCLAVE 2011 340000 COMMUNICATION
BUICK ENCLAVE 2011 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2011 350000 EQUIPMENT
BUICK ENCLAVE 2011 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC ESCALADE ESV 2011 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE ESV 2011 350000 EQUIPMENT
CADILLAC ESCALADE ESV 2011 340000 COMMUNICATION
CADILLAC ESCALADE ESV 2011 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE ESV 2011 350000 EQUIPMENT
CADILLAC ESCALADE ESV 2011 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SIERRA DENALI 2011 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2011 350000 EQUIPMENT
GMC SIERRA DENALI 2011 340000 COMMUNICATION
GMC SIERRA DENALI 2011 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2011 350000 EQUIPMENT
GMC SIERRA DENALI 2011 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET TRAVERSE 2011 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2011 350000 EQUIPMENT
CHEVROLET TRAVERSE 2011 340000 COMMUNICATION
CHEVROLET TRAVERSE 2011 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2011 350000 EQUIPMENT
CHEVROLET TRAVERSE 2011 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON XL 2011 110000 ELECTRICAL SYSTEM
GMC YUKON XL 2011 350000 EQUIPMENT
GMC YUKON XL 2011 340000 COMMUNICATION
GMC YUKON XL 2011 110000 ELECTRICAL SYSTEM
GMC YUKON XL 2011 350000 EQUIPMENT
GMC YUKON XL 2011 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET AVALANCHE 2010 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 2010 350000 EQUIPMENT
CHEVROLET AVALANCHE 2010 340000 COMMUNICATION
CHEVROLET AVALANCHE 2010 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 2010 350000 EQUIPMENT
CHEVROLET AVALANCHE 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET CAMARO 2010 110000 ELECTRICAL SYSTEM
CHEVROLET CAMARO 2010 350000 EQUIPMENT
CHEVROLET CAMARO 2010 340000 COMMUNICATION
CHEVROLET CAMARO 2010 110000 ELECTRICAL SYSTEM
CHEVROLET CAMARO 2010 350000 EQUIPMENT
CHEVROLET CAMARO 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET CORVETTE 2010 110000 ELECTRICAL SYSTEM
CHEVROLET CORVETTE 2010 350000 EQUIPMENT
CHEVROLET CORVETTE 2010 340000 COMMUNICATION
CHEVROLET CORVETTE 2010 110000 ELECTRICAL SYSTEM
CHEVROLET CORVETTE 2010 350000 EQUIPMENT
CHEVROLET CORVETTE 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC ESCALADE 2010 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE 2010 350000 EQUIPMENT
CADILLAC ESCALADE 2010 340000 COMMUNICATION
CADILLAC ESCALADE 2010 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE 2010 350000 EQUIPMENT
CADILLAC ESCALADE 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET IMPALA 2010 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2010 350000 EQUIPMENT
CHEVROLET IMPALA 2010 340000 COMMUNICATION
CHEVROLET IMPALA 2010 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2010 350000 EQUIPMENT
CHEVROLET IMPALA 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET SILVERADO 1500 2010 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2010 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2010 340000 COMMUNICATION
CHEVROLET SILVERADO 1500 2010 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 2010 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET TAHOE 2010 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE 2010 350000 EQUIPMENT
CHEVROLET TAHOE 2010 340000 COMMUNICATION
CHEVROLET TAHOE 2010 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE 2010 350000 EQUIPMENT
CHEVROLET TAHOE 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC TERRAIN 2010 110000 ELECTRICAL SYSTEM
GMC TERRAIN 2010 350000 EQUIPMENT
GMC TERRAIN 2010 340000 COMMUNICATION
GMC TERRAIN 2010 110000 ELECTRICAL SYSTEM
GMC TERRAIN 2010 350000 EQUIPMENT
GMC TERRAIN 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON 2010 110000 ELECTRICAL SYSTEM
GMC YUKON 2010 350000 EQUIPMENT
GMC YUKON 2010 340000 COMMUNICATION
GMC YUKON 2010 110000 ELECTRICAL SYSTEM
GMC YUKON 2010 350000 EQUIPMENT
GMC YUKON 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON DENALI 2010 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI 2010 350000 EQUIPMENT
GMC YUKON DENALI 2010 340000 COMMUNICATION
GMC YUKON DENALI 2010 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI 2010 350000 EQUIPMENT
GMC YUKON DENALI 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON DENALI XL 2010 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI XL 2010 350000 EQUIPMENT
GMC YUKON DENALI XL 2010 340000 COMMUNICATION
GMC YUKON DENALI XL 2010 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI XL 2010 350000 EQUIPMENT
GMC YUKON DENALI XL 2010 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET EQUINOX 2009 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2009 350000 EQUIPMENT
CHEVROLET EQUINOX 2009 340000 COMMUNICATION
CHEVROLET EQUINOX 2009 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2009 350000 EQUIPMENT
CHEVROLET EQUINOX 2009 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET EXPRESS 2009 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2009 350000 EQUIPMENT
CHEVROLET EXPRESS 2009 340000 COMMUNICATION
CHEVROLET EXPRESS 2009 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2009 350000 EQUIPMENT
CHEVROLET EXPRESS 2009 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK LACROSSE 2009 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2009 350000 EQUIPMENT
BUICK LACROSSE 2009 340000 COMMUNICATION
BUICK LACROSSE 2009 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2009 350000 EQUIPMENT
BUICK LACROSSE 2009 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SAVANA 2009 110000 ELECTRICAL SYSTEM
GMC SAVANA 2009 350000 EQUIPMENT
GMC SAVANA 2009 340000 COMMUNICATION
GMC SAVANA 2009 110000 ELECTRICAL SYSTEM
GMC SAVANA 2009 350000 EQUIPMENT
GMC SAVANA 2009 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC ACADIA 2008 110000 ELECTRICAL SYSTEM
GMC ACADIA 2008 350000 EQUIPMENT
GMC ACADIA 2008 340000 COMMUNICATION
GMC ACADIA 2008 110000 ELECTRICAL SYSTEM
GMC ACADIA 2008 350000 EQUIPMENT
GMC ACADIA 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET CORVETTE 2008 110000 ELECTRICAL SYSTEM
CHEVROLET CORVETTE 2008 350000 EQUIPMENT
CHEVROLET CORVETTE 2008 340000 COMMUNICATION
CHEVROLET CORVETTE 2008 110000 ELECTRICAL SYSTEM
CHEVROLET CORVETTE 2008 350000 EQUIPMENT
CHEVROLET CORVETTE 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK ENCLAVE 2008 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2008 350000 EQUIPMENT
BUICK ENCLAVE 2008 340000 COMMUNICATION
BUICK ENCLAVE 2008 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2008 350000 EQUIPMENT
BUICK ENCLAVE 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC ESCALADE EXT 2008 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE EXT 2008 350000 EQUIPMENT
CADILLAC ESCALADE EXT 2008 340000 COMMUNICATION
CADILLAC ESCALADE EXT 2008 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE EXT 2008 350000 EQUIPMENT
CADILLAC ESCALADE EXT 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK LACROSSE 2008 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2008 350000 EQUIPMENT
BUICK LACROSSE 2008 340000 COMMUNICATION
BUICK LACROSSE 2008 110000 ELECTRICAL SYSTEM
BUICK LACROSSE 2008 350000 EQUIPMENT
BUICK LACROSSE 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET MALIBU 2008 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2008 350000 EQUIPMENT
CHEVROLET MALIBU 2008 340000 COMMUNICATION
CHEVROLET MALIBU 2008 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2008 350000 EQUIPMENT
CHEVROLET MALIBU 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SAVANA 2008 110000 ELECTRICAL SYSTEM
GMC SAVANA 2008 350000 EQUIPMENT
GMC SAVANA 2008 340000 COMMUNICATION
GMC SAVANA 2008 110000 ELECTRICAL SYSTEM
GMC SAVANA 2008 350000 EQUIPMENT
GMC SAVANA 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SIERRA DENALI 2008 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2008 350000 EQUIPMENT
GMC SIERRA DENALI 2008 340000 COMMUNICATION
GMC SIERRA DENALI 2008 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2008 350000 EQUIPMENT
GMC SIERRA DENALI 2008 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET AVALANCHE 2007 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 2007 350000 EQUIPMENT
CHEVROLET AVALANCHE 2007 340000 COMMUNICATION
CHEVROLET AVALANCHE 2007 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 2007 350000 EQUIPMENT
CHEVROLET AVALANCHE 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET C SERIES 2007 110000 ELECTRICAL SYSTEM
CHEVROLET C SERIES 2007 350000 EQUIPMENT
CHEVROLET C SERIES 2007 340000 COMMUNICATION
CHEVROLET C SERIES 2007 110000 ELECTRICAL SYSTEM
CHEVROLET C SERIES 2007 350000 EQUIPMENT
CHEVROLET C SERIES 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC CANYON 2007 110000 ELECTRICAL SYSTEM
GMC CANYON 2007 350000 EQUIPMENT
GMC CANYON 2007 340000 COMMUNICATION
GMC CANYON 2007 110000 ELECTRICAL SYSTEM
GMC CANYON 2007 350000 EQUIPMENT
GMC CANYON 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET COLORADO 2007 110000 ELECTRICAL SYSTEM
CHEVROLET COLORADO 2007 350000 EQUIPMENT
CHEVROLET COLORADO 2007 340000 COMMUNICATION
CHEVROLET COLORADO 2007 110000 ELECTRICAL SYSTEM
CHEVROLET COLORADO 2007 350000 EQUIPMENT
CHEVROLET COLORADO 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC ESCALADE ESV 2007 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE ESV 2007 350000 EQUIPMENT
CADILLAC ESCALADE ESV 2007 340000 COMMUNICATION
CADILLAC ESCALADE ESV 2007 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE ESV 2007 350000 EQUIPMENT
CADILLAC ESCALADE ESV 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET EXPRESS 2007 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2007 350000 EQUIPMENT
CHEVROLET EXPRESS 2007 340000 COMMUNICATION
CHEVROLET EXPRESS 2007 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2007 350000 EQUIPMENT
CHEVROLET EXPRESS 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK LUCERNE 2007 110000 ELECTRICAL SYSTEM
BUICK LUCERNE 2007 350000 EQUIPMENT
BUICK LUCERNE 2007 340000 COMMUNICATION
BUICK LUCERNE 2007 110000 ELECTRICAL SYSTEM
BUICK LUCERNE 2007 350000 EQUIPMENT
BUICK LUCERNE 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SIERRA DENALI 2007 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2007 350000 EQUIPMENT
GMC SIERRA DENALI 2007 340000 COMMUNICATION
GMC SIERRA DENALI 2007 110000 ELECTRICAL SYSTEM
GMC SIERRA DENALI 2007 350000 EQUIPMENT
GMC SIERRA DENALI 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET TAHOE 2007 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE 2007 350000 EQUIPMENT
CHEVROLET TAHOE 2007 340000 COMMUNICATION
CHEVROLET TAHOE 2007 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE 2007 350000 EQUIPMENT
CHEVROLET TAHOE 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON 2007 110000 ELECTRICAL SYSTEM
GMC YUKON 2007 350000 EQUIPMENT
GMC YUKON 2007 340000 COMMUNICATION
GMC YUKON 2007 110000 ELECTRICAL SYSTEM
GMC YUKON 2007 350000 EQUIPMENT
GMC YUKON 2007 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET C SERIES 2006 110000 ELECTRICAL SYSTEM
CHEVROLET C SERIES 2006 350000 EQUIPMENT
CHEVROLET C SERIES 2006 340000 COMMUNICATION
CHEVROLET C SERIES 2006 110000 ELECTRICAL SYSTEM
CHEVROLET C SERIES 2006 350000 EQUIPMENT
CHEVROLET C SERIES 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC ESCALADE EXT 1500 2006 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE EXT 1500 2006 350000 EQUIPMENT
CADILLAC ESCALADE EXT 1500 2006 340000 COMMUNICATION
CADILLAC ESCALADE EXT 1500 2006 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE EXT 1500 2006 350000 EQUIPMENT
CADILLAC ESCALADE EXT 1500 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET IMPALA 2006 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2006 350000 EQUIPMENT
CHEVROLET IMPALA 2006 340000 COMMUNICATION
CHEVROLET IMPALA 2006 110000 ELECTRICAL SYSTEM
CHEVROLET IMPALA 2006 350000 EQUIPMENT
CHEVROLET IMPALA 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC STS 2006 110000 ELECTRICAL SYSTEM
CADILLAC STS 2006 350000 EQUIPMENT
CADILLAC STS 2006 340000 COMMUNICATION
CADILLAC STS 2006 110000 ELECTRICAL SYSTEM
CADILLAC STS 2006 350000 EQUIPMENT
CADILLAC STS 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET SUBURBAN 2006 110000 ELECTRICAL SYSTEM
CHEVROLET SUBURBAN 2006 350000 EQUIPMENT
CHEVROLET SUBURBAN 2006 340000 COMMUNICATION
CHEVROLET SUBURBAN 2006 110000 ELECTRICAL SYSTEM
CHEVROLET SUBURBAN 2006 350000 EQUIPMENT
CHEVROLET SUBURBAN 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET T SERIES 2006 110000 ELECTRICAL SYSTEM
CHEVROLET T SERIES 2006 350000 EQUIPMENT
CHEVROLET T SERIES 2006 340000 COMMUNICATION
CHEVROLET T SERIES 2006 110000 ELECTRICAL SYSTEM
CHEVROLET T SERIES 2006 350000 EQUIPMENT
CHEVROLET T SERIES 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET TAHOE 2006 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE 2006 350000 EQUIPMENT
CHEVROLET TAHOE 2006 340000 COMMUNICATION
CHEVROLET TAHOE 2006 110000 ELECTRICAL SYSTEM
CHEVROLET TAHOE 2006 350000 EQUIPMENT
CHEVROLET TAHOE 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON 2006 110000 ELECTRICAL SYSTEM
GMC YUKON 2006 350000 EQUIPMENT
GMC YUKON 2006 340000 COMMUNICATION
GMC YUKON 2006 110000 ELECTRICAL SYSTEM
GMC YUKON 2006 350000 EQUIPMENT
GMC YUKON 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON DENALI 2006 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI 2006 350000 EQUIPMENT
GMC YUKON DENALI 2006 340000 COMMUNICATION
GMC YUKON DENALI 2006 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI 2006 350000 EQUIPMENT
GMC YUKON DENALI 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON DENALI XL 2006 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI XL 2006 350000 EQUIPMENT
GMC YUKON DENALI XL 2006 340000 COMMUNICATION
GMC YUKON DENALI XL 2006 110000 ELECTRICAL SYSTEM
GMC YUKON DENALI XL 2006 350000 EQUIPMENT
GMC YUKON DENALI XL 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC YUKON XL 2006 110000 ELECTRICAL SYSTEM
GMC YUKON XL 2006 350000 EQUIPMENT
GMC YUKON XL 2006 340000 COMMUNICATION
GMC YUKON XL 2006 110000 ELECTRICAL SYSTEM
GMC YUKON XL 2006 350000 EQUIPMENT
GMC YUKON XL 2006 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET AVALANCHE 1500 2005 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 1500 2005 350000 EQUIPMENT
CHEVROLET AVALANCHE 1500 2005 340000 COMMUNICATION
CHEVROLET AVALANCHE 1500 2005 110000 ELECTRICAL SYSTEM
CHEVROLET AVALANCHE 1500 2005 350000 EQUIPMENT
CHEVROLET AVALANCHE 1500 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC C SERIES 2005 110000 ELECTRICAL SYSTEM
GMC C SERIES 2005 350000 EQUIPMENT
GMC C SERIES 2005 340000 COMMUNICATION
CHEVROLET C SERIES 2005 110000 ELECTRICAL SYSTEM
CHEVROLET C SERIES 2005 350000 EQUIPMENT
CHEVROLET C SERIES 2005 340000 COMMUNICATION
GMC C SERIES 2005 110000 ELECTRICAL SYSTEM
GMC C SERIES 2005 350000 EQUIPMENT
GMC C SERIES 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET C SERIES 2005 110000 ELECTRICAL SYSTEM
CHEVROLET C SERIES 2005 350000 EQUIPMENT
CHEVROLET C SERIES 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET COLORADO 2005 110000 ELECTRICAL SYSTEM
CHEVROLET COLORADO 2005 350000 EQUIPMENT
CHEVROLET COLORADO 2005 340000 COMMUNICATION
CHEVROLET COLORADO 2005 110000 ELECTRICAL SYSTEM
CHEVROLET COLORADO 2005 350000 EQUIPMENT
CHEVROLET COLORADO 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC CTS 2005 110000 ELECTRICAL SYSTEM
CADILLAC CTS 2005 350000 EQUIPMENT
CADILLAC CTS 2005 340000 COMMUNICATION
CADILLAC CTS 2005 110000 ELECTRICAL SYSTEM
CADILLAC CTS 2005 350000 EQUIPMENT
CADILLAC CTS 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET EQUINOX 2005 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2005 350000 EQUIPMENT
CHEVROLET EQUINOX 2005 340000 COMMUNICATION
CHEVROLET EQUINOX 2005 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2005 350000 EQUIPMENT
CHEVROLET EQUINOX 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC ESCALADE 2005 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE 2005 350000 EQUIPMENT
CADILLAC ESCALADE 2005 340000 COMMUNICATION
CADILLAC ESCALADE 2005 110000 ELECTRICAL SYSTEM
CADILLAC ESCALADE 2005 350000 EQUIPMENT
CADILLAC ESCALADE 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET EXPRESS 2005 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2005 350000 EQUIPMENT
CHEVROLET EXPRESS 2005 340000 COMMUNICATION
CHEVROLET EXPRESS 2005 110000 ELECTRICAL SYSTEM
CHEVROLET EXPRESS 2005 350000 EQUIPMENT
CHEVROLET EXPRESS 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET MALIBU 2005 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2005 350000 EQUIPMENT
CHEVROLET MALIBU 2005 340000 COMMUNICATION
CHEVROLET MALIBU 2005 110000 ELECTRICAL SYSTEM
CHEVROLET MALIBU 2005 350000 EQUIPMENT
CHEVROLET MALIBU 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
BUICK REGAL 2005 110000 ELECTRICAL SYSTEM
BUICK REGAL 2005 350000 EQUIPMENT
BUICK REGAL 2005 340000 COMMUNICATION
BUICK REGAL 2005 110000 ELECTRICAL SYSTEM
BUICK REGAL 2005 350000 EQUIPMENT
BUICK REGAL 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SIERRA 1500 HD 2005 110000 ELECTRICAL SYSTEM
GMC SIERRA 1500 HD 2005 350000 EQUIPMENT
GMC SIERRA 1500 HD 2005 340000 COMMUNICATION
GMC SIERRA 1500 HD 2005 110000 ELECTRICAL SYSTEM
GMC SIERRA 1500 HD 2005 350000 EQUIPMENT
GMC SIERRA 1500 HD 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
GMC SIERRA 2500 HD 2005 110000 ELECTRICAL SYSTEM
GMC SIERRA 2500 HD 2005 350000 EQUIPMENT
GMC SIERRA 2500 HD 2005 340000 COMMUNICATION
GMC SIERRA 2500 HD 2005 110000 ELECTRICAL SYSTEM
GMC SIERRA 2500 HD 2005 350000 EQUIPMENT
GMC SIERRA 2500 HD 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET SILVERADO 1500 HD 2005 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 HD 2005 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 HD 2005 340000 COMMUNICATION
CHEVROLET SILVERADO 1500 HD 2005 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 1500 HD 2005 350000 EQUIPMENT
CHEVROLET SILVERADO 1500 HD 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET SILVERADO 2500 2005 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2005 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2005 340000 COMMUNICATION
CHEVROLET SILVERADO 2500 2005 110000 ELECTRICAL SYSTEM
CHEVROLET SILVERADO 2500 2005 350000 EQUIPMENT
CHEVROLET SILVERADO 2500 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CADILLAC SRX 2005 110000 ELECTRICAL SYSTEM
CADILLAC SRX 2005 350000 EQUIPMENT
CADILLAC SRX 2005 340000 COMMUNICATION
CADILLAC SRX 2005 110000 ELECTRICAL SYSTEM
CADILLAC SRX 2005 350000 EQUIPMENT
CADILLAC SRX 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET SUBURBAN 2005 110000 ELECTRICAL SYSTEM
CHEVROLET SUBURBAN 2005 350000 EQUIPMENT
CHEVROLET SUBURBAN 2005 340000 COMMUNICATION
CHEVROLET SUBURBAN 2005 110000 ELECTRICAL SYSTEM
CHEVROLET SUBURBAN 2005 350000 EQUIPMENT
CHEVROLET SUBURBAN 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET T SERIES 2005 110000 ELECTRICAL SYSTEM
CHEVROLET T SERIES 2005 350000 EQUIPMENT
CHEVROLET T SERIES 2005 340000 COMMUNICATION
CHEVROLET T SERIES 2005 110000 ELECTRICAL SYSTEM
CHEVROLET T SERIES 2005 350000 EQUIPMENT
CHEVROLET T SERIES 2005 356000 EQUIPMENT ADAPTIVE/MOBILITY

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (03-08-46-004M) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.