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Service bulletin 15-08-73-001A

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 id10138020
Published by NHTSA2018-05-21
Manufacturer's number15-08-73-001A
Manufacturer's date2017-03-21
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

This informational bulletin explains how to update the older Onstar module software to new software over GSA.

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

Electrical system, Software

Vehicles listed
BUICK CENTURY2000, 2001, 2002, 2003, 2004, 2005
BUICK ENCLAVE2008, 2009, 2010, 2011, 2012, 2013
BUICK LACROSSE2005, 2006, 2007, 2008, 2009
BUICK LESABRE2000, 2001, 2002, 2003, 2004, 2005
BUICK LESABRE2006
BUICK LUCERNE2006, 2007, 2008, 2009, 2010, 2011
BUICK PARK AVENUE2000, 2001, 2002, 2003, 2004, 2005
BUICK RAINIER2004, 2005, 2006, 2007
BUICK REGAL2000, 2001, 2002, 2003, 2004
BUICK REGAL2005
BUICK RENDEZVOUS2002, 2003, 2004, 2005, 2006, 2007
BUICK RIVIERA2000
BUICK TERRAZA2005, 2006, 2007
BUICK TERRAZA2008
CADILLAC CATERA2000, 2001
CADILLAC CTS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CADILLAC DEVILLE2000, 2001, 2002, 2003, 2004, 2005
CADILLAC DTS2006, 2007, 2008, 2009, 2010, 2011
CADILLAC ELDORADO2000, 2001, 2002
CADILLAC ESCALADE2000
CADILLAC ESCALADE2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CADILLAC ESCALADE ESV2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SEVILLE2000, 2001, 2002, 2003, 2004
CADILLAC SRX2004, 2005, 2006, 2007, 2008, 2009
CADILLAC STS2005, 2006, 2007, 2008, 2009, 2010, 2011
CADILLAC XLR2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET ASTRO2000 to 2005
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET AVALANCHE 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVEO2004, 2005, 2006
CHEVROLET AVEO2009, 2010, 2011
CHEVROLET BLAZER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET CAMARO2000, 2001, 2002
CHEVROLET CAVALIER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET CLASSIC2004 to 2006
CHEVROLET COBALT2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET COLORADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET CORVETTE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET EQUINOX2005, 2006, 2007, 2008, 2009
CHEVROLET EXPRESS2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET G SERIES2000
CHEVROLET HHR2006, 2007, 2008, 2009
CHEVROLET IMPALA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET M SERIES2000
CHEVROLET MALIBU2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET METRO2000, 2001
CHEVROLET MONTE CARLO2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
CHEVROLET P SERIES2000 to 2001
CHEVROLET PRIZM2000 to 2002
CHEVROLET S102000 to 2004
CHEVROLET SILVERADO 15002001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD2002, 2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SSR2003, 2004, 2005, 2006
CHEVROLET SUBURBAN2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET TAHOE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET TRACKER2000, 2001, 2002, 2003, 2004
CHEVROLET TRAILBLAZER2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET TRAVERSE2009, 2010, 2011, 2012, 2013
CHEVROLET UPLANDER2005, 2006, 2007, 2008, 2009
CHEVROLET V SERIES2000
CHEVROLET VENTURE2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET W SERIES2000
GMC ACADIA2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC CANYON2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
GMC ENVOY2000 to 2001
GMC ENVOY2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC ENVOY XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC G SERIES2000
GMC G SERIES2003
GMC GM2001 to 2002
GMC JIMMY2000 to 2004
GMC JIMMY CLASSIC2005
GMC M/L VAN2001
GMC SAFARI2000, 2001, 2002, 2003, 2004, 2005
GMC SAVANA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC SAVANA2011, 2012, 2013
GMC SIERRA 15002001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2003 (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 SONOMA2000, 2001, 2002, 2003, 2004
GMC SUBURBAN2000
GMC SUBURBAN2001
GMC TOPKICK2008 to 2009
GMC YUKON2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC YUKON DENALI2000, 2001, 2002, 2003, 2004, 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 XL2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
GMC YUKON XL2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H22003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
HUMMER H32006, 2007, 2008, 2009, 2010
OLDSMOBILE ALERO2000, 2001, 2002, 2003, 2004
OLDSMOBILE AURORA2000
OLDSMOBILE AURORA2001, 2002, 2003
OLDSMOBILE BRAVADA2000, 2001, 2002, 2003, 2004
OLDSMOBILE INTRIGUE2000, 2001, 2002
OLDSMOBILE SILHOUETTE2000, 2001, 2002, 2003, 2004
PONTIAC AZTEK2001, 2002, 2003, 2004, 2005
PONTIAC BONNEVILLE2000, 2001, 2002, 2003, 2004, 2005
PONTIAC FIREBIRD2000, 2001, 2002
PONTIAC G32008, 2009, 2010
PONTIAC G52007, 2008, 2009, 2010
PONTIAC G62005, 2006, 2007, 2008, 2009, 2010
PONTIAC G82008, 2009
PONTIAC GRAND AM2000, 2001, 2002, 2003, 2004, 2005
PONTIAC GRAND PRIX2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
PONTIAC GTO2004, 2005, 2006
PONTIAC GTO2007
PONTIAC MONTANA2000, 2001, 2002, 2003, 2004
PONTIAC MONTANA2005 to 2009
PONTIAC MONTANA EXT2000, 2001, 2002, 2003, 2004 (the catalog's model; the bulletin names a series or trim of it)
PONTIAC PURSUIT2005, 2006
PONTIAC PURSUIT2007 to 2009
PONTIAC SOLSTICE2006, 2007, 2008, 2009, 2010
PONTIAC SUNFIRE2000, 2001, 2002, 2003, 2004, 2005
PONTIAC TORRENT2006, 2007, 2008, 2009
PONTIAC TRANS SPORT2000 to 2001
PONTIAC VIBE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
SATURN ASTRA2008, 2009
SATURN AURA2007, 2008, 2009, 2010
SATURN ION2003, 2004, 2005, 2006, 2007
SATURN L2002003
SATURN L2002004 to 2005
SATURN L3002003, 2004, 2005
SATURN LW2002000, 2001, 2002 (the catalog's model; the bulletin names a series or trim of it)
SATURN LW2002003
SATURN LW2002004
SATURN OUTLOOK2007, 2008, 2009, 2010
SATURN RELAY2005, 2006, 2007
SATURN RELAY2008
SATURN SKY2007, 2008, 2009
SATURN SL2000, 2001, 2002
SATURN VUE2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

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