Service bulletin 08-08-46-004A

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	10138220
Published by NHTSA	2018-05-21
Manufacturer's number	08-08-46-004A
Manufacturer's date	2012-11-30
NHTSA component	ELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

This informational bulletin provides information regarding the aftermarket device interference with onstar diagnostic service.

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, Equipment and accessories

Vehicles listed
BUICK ENCLAVE	2008
BUICK ENCLAVE	2010
BUICK ENCLAVE	2012
BUICK LACROSSE	2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
BUICK LESABRE	2003
BUICK LUCERNE	2007
BUICK LUCERNE	2009, 2010, 2011
BUICK PARK AVENUE	2005
BUICK RAINIER	2005, 2006
BUICK REGAL	2005
BUICK REGAL	2008 to 2009
BUICK REGAL	2011
BUICK RENDEZVOUS	2003, 2004, 2005
BUICK RENDEZVOUS	2007
BUICK TERRAZA	2006, 2007
BUICK TERRAZA	2008
BUICK VERANO	2013
CADILLAC ATS	2013
CADILLAC CTS	2005, 2006, 2007
CADILLAC CTS	2009, 2010, 2011
CADILLAC DEVILLE	2002
CADILLAC DTS	2004
CADILLAC DTS	2007, 2008
CADILLAC ESCALADE	2002
CADILLAC ESCALADE	2004, 2005
CADILLAC ESCALADE	2007, 2008, 2009, 2010, 2011, 2012, 2013
CADILLAC ESCALADE ESV	2008 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV	2010 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV	2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT	2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT	2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT 1500	2002 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SEVILLE	2002
CADILLAC SEVILLE	2004
CADILLAC SRX	2007
CADILLAC SRX	2009, 2010, 2011
CADILLAC SRX	2013
CADILLAC STS	2002
CADILLAC STS	2009, 2010, 2011
CADILLAC XLR	2004
CADILLAC XLR	2007
CADILLAC XLR	2009
CHEVROLET ASTRO	2002 to 2003
CHEVROLET ASTRO	2005
CHEVROLET AVALANCHE	2007, 2008, 2009, 2010
CHEVROLET AVALANCHE	2012, 2013
CHEVROLET AVALANCHE 1500	2002, 2003 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 1500	2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 2500	2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVEO	2005
CHEVROLET AVEO	2007, 2008
CHEVROLET BLAZER	2002
CHEVROLET BLAZER	2004
CHEVROLET BLAZER	2007
CHEVROLET BLAZER	2009
CHEVROLET C SERIES	2003 to 2009
CHEVROLET CAVALIER	2002
CHEVROLET CAVALIER	2004
CHEVROLET COBALT	2002
CHEVROLET COBALT	2008, 2009, 2010
CHEVROLET COBALT	2012
CHEVROLET COBALT SS	2008 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COBALT SS	2010 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET COLORADO	2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET COLORADO	2013
CHEVROLET CORVETTE	2003
CHEVROLET CORVETTE	2007, 2008
CHEVROLET CORVETTE	2010, 2011, 2012, 2013
CHEVROLET CRUZE	2010
CHEVROLET EQUINOX	2005, 2006, 2007, 2008
CHEVROLET EQUINOX	2010
CHEVROLET EXPRESS	2002, 2003, 2004, 2005
CHEVROLET EXPRESS	2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET EXPRESS CUTAWAY	2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET G SERIES	2002
CHEVROLET G VAN BUS	2009 to 2011
CHEVROLET HHR	2006
CHEVROLET HHR	2009, 2010
CHEVROLET IMPALA	2002, 2003, 2004
CHEVROLET IMPALA	2006, 2007, 2008, 2009, 2010
CHEVROLET IMPALA	2013
CHEVROLET L SERIES	2002
CHEVROLET L VAN	2002
CHEVROLET M SERIES	2002
CHEVROLET MALIBU	2003, 2004
CHEVROLET MALIBU	2006, 2007, 2008, 2009
CHEVROLET MALIBU	2011, 2012, 2013
CHEVROLET MONTE CARLO	2002
CHEVROLET MONTE CARLO	2005
CHEVROLET MONTE CARLO	2007
CHEVROLET MOTOR HOME	2002
CHEVROLET OPTRA	2007
CHEVROLET S10	2003 to 2004
CHEVROLET SILVERADO 1500	2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500	2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD	2002, 2003 (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	2004, 2005, 2006, 2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 2500	2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 3500	2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SSR	2005
CHEVROLET SUBURBAN	2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET SUBURBAN	2012, 2013
CHEVROLET T SERIES	2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET T SERIES	2010
CHEVROLET TAHOE	2002, 2003, 2004
CHEVROLET TAHOE	2006
CHEVROLET TAHOE	2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET TRACKER	2004
CHEVROLET TRAILBLAZER	2003, 2004, 2005
CHEVROLET TRAILBLAZER	2007, 2008, 2009
CHEVROLET TRAILBLAZER	2013
CHEVROLET TRAILBLAZER EXT	2004 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TRAVERSE	2008
CHEVROLET TRAVERSE	2009, 2010
CHEVROLET UPLANDER	2005
CHEVROLET UPLANDER	2008
CHEVROLET VENTURE	2004
CHEVROLET VOLT	2011
CHEVROLET W-SERIES	2003 to 2011
GMC ACADIA	2007, 2008, 2009, 2010
GMC ACADIA	2012, 2013
GMC C SERIES	2002 to 2009
GMC CANYON	2004
GMC CANYON	2006, 2007, 2008, 2009, 2010
GMC CANYON	2012, 2013
GMC ENVOY	2002, 2003
GMC ENVOY	2005
GMC ENVOY	2007, 2008, 2009
GMC ENVOY	2010
GMC G SERIES	2003
GMC G VAN BUS	2005
GMC G VAN BUS	2010 to 2011
GMC GM	2002
GMC JIMMY	2002
GMC JIMMY CLASSIC	2005
GMC SAFARI	2003, 2004
GMC SAVANA	2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC SIERRA 1500 HD	2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 2500	2003 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 2500	2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 2500	2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 3500	2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI	2002, 2003 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI	2007, 2008, 2009 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI	2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SONOMA	2002
GMC SONOMA	2006
GMC T SERIES	2007
GMC TERRAIN	2011
GMC TERRAIN	2013
GMC TOPKICK	2002 to 2006
GMC TOPKICK	2008 to 2013
GMC W SERIES C3 3500	2007
GMC W-SERIES	2004 to 2011
GMC YUKON	2002
GMC YUKON	2004, 2005
GMC YUKON	2008, 2009, 2010, 2011, 2012, 2013
GMC YUKON DENALI	2003 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI	2007 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI	2009, 2010, 2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL	2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL	2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL	2002, 2003, 2004
GMC YUKON XL	2006
GMC YUKON XL	2008, 2009, 2010, 2011
GMC YUKON XL	2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL DENALI	2003 (the catalog's model; the bulletin names a series or trim of it)
HUMMER H2	2004
HUMMER H2	2007, 2008, 2009
HUMMER H3	2004
HUMMER H3	2007, 2008, 2009
OLDSMOBILE ALERO	2003
OLDSMOBILE BRAVADA	2004
PONTIAC AZTEK	2005
PONTIAC BONNEVILLE	2004
PONTIAC G3	2007
PONTIAC G3	2008
PONTIAC G5	2007
PONTIAC G5	2010
PONTIAC G6	2005
PONTIAC G6	2007, 2008
PONTIAC G8	2008
PONTIAC GRAND PRIX	2004
PONTIAC GRAND PRIX	2007, 2008
PONTIAC GTO	2007
PONTIAC MONTANA	2004
PONTIAC MONTANA	2005 to 2009
PONTIAC MONTANA EXT	2004 (the catalog's model; the bulletin names a series or trim of it)
PONTIAC PURSUIT	2005
PONTIAC PURSUIT	2007
PONTIAC SOLSTICE	2006
PONTIAC SOLSTICE	2009
PONTIAC TORRENT	2007, 2008
PONTIAC VIBE	2002
PONTIAC VIBE	2004
PONTIAC VIBE	2006, 2007, 2008, 2009, 2010
PONTIAC WAVE	2007, 2008
SAAB 9-5	2006
SAAB 9-7X	2008

And 16 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
2016597	2016-11-29. Electrical
2016350	2016-07-07. Electrical
16V517000	2016-07-07. SEATS:FRONT ASSEMBLY:POWER ADJUST; ELECTRICAL SYSTEM:WIRING
16V502000	2016-07-05. ELECTRICAL SYSTEM:IGNITION; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
2015002	2014-12-30. Electrical
14V827000	2014-12-30. ELECTRICAL SYSTEM:IGNITION
2014432	2014-10-03. Electrical
14V614000	2014-10-01. ELECTRICAL SYSTEM
2014284	2014-07-03. Electrical
14V400000	2014-07-03. ELECTRICAL SYSTEM:IGNITION

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
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18-NA-180	2025-09-26. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
25-NA-087	2025-05-02. Service bulletin. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
23-NA-001	2025-04-28. Service bulletin. This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
13-08-116-001K	2025-04-25. Service bulletin. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
15-06-03-001F	2025-04-15. Service bulletin. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
21-NA-043	2025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
18-NA-180	2025-01-30. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
09-06-04-026Z	2025-01-23. Service bulletin. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
18-NA-180	2025-01-08. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.