TSB: BUICK ACADIA, AURA, AVALANCHE, CTS, EQUINOX, ESCALADE EXT, EXPRESS, G6, IMPALA, MALIBU, OUTLOOK, REGAL, SAVANA, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SRX, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL (2006–2015)

Bulletin 10-08-42-001E — May 15, 2015

Bulletin Details

Bulletin ID10-08-42-001E
ManufacturerBUICK
ModelsACADIA, AURA, AVALANCHE, CTS, EQUINOX, ESCALADE EXT, EXPRESS, G6, IMPALA, MALIBU, OUTLOOK, REGAL, SAVANA, SIERRA 2500, SIERRA DENALI, SILVERADO 1500, SILVERADO 2500, SILVERADO 3500, SONIC, SRX, SUBURBAN, TAHOE, TERRAIN, TRAVERSE, YUKON, YUKON DENALI, YUKON DENALI XL, YUKON XL
Model Years2006–2015
Date IssuedMay 15, 2015
Date Added to NHTSAAugust 15, 2017
ComponentEXTERIOR LIGHTING:HEADLIGHTS
Vehicles Affected161 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 technical bulletin provides repair information for low beam headlamp bulb diagnosis/replacement to correct a customer concern that the low beam headlamp is inoperative.

Affected Vehicles

MakeModelYearComponent
CHEVROLET EQUINOX 2015 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2015 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2015 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC TERRAIN 2015 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC CTS 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EQUINOX 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
BUICK REGAL 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA 2500 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SONIC 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC TERRAIN 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON XL 2014 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET AVALANCHE 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC CTS 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EQUINOX 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EXPRESS 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
BUICK REGAL 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SAVANA 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 3500 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SONIC 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC SRX 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC TERRAIN 2013 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC ACADIA 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET AVALANCHE 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC CTS 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EQUINOX 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EXPRESS 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
BUICK REGAL 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SAVANA 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA 2500 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA DENALI 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SONIC 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC SRX 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC TERRAIN 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TRAVERSE 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI XL 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON XL 2012 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC ACADIA 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET AVALANCHE 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC CTS 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EQUINOX 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EXPRESS 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
BUICK REGAL 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SAVANA 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA 2500 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA DENALI 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 1500 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC SRX 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC TERRAIN 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TRAVERSE 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI XL 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON XL 2011 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC ACADIA 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN AURA 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET AVALANCHE 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC CTS 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EQUINOX 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC ESCALADE EXT 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EXPRESS 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
PONTIAC G6 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN OUTLOOK 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SAVANA 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA 2500 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA DENALI 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 1500 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC SRX 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC TERRAIN 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TRAVERSE 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI XL 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON XL 2010 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC ACADIA 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN AURA 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET AVALANCHE 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC CTS 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EXPRESS 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
PONTIAC G6 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN OUTLOOK 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SAVANA 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA 2500 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA DENALI 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 1500 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TRAVERSE 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI XL 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON XL 2009 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC ACADIA 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN AURA 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET AVALANCHE 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC CTS 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET EXPRESS 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
PONTIAC G6 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET MALIBU 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN OUTLOOK 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SAVANA 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA 2500 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA DENALI 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 1500 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI XL 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON XL 2008 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC ACADIA 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN AURA 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET AVALANCHE 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
CADILLAC ESCALADE EXT 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
PONTIAC G6 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
SATURN OUTLOOK 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA 2500 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC SIERRA DENALI 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 1500 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SILVERADO 2500 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET SUBURBAN 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET TAHOE 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON DENALI XL 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
GMC YUKON XL 2007 121000 EXTERIOR LIGHTING:HEADLIGHTS
PONTIAC G6 2006 121000 EXTERIOR LIGHTING:HEADLIGHTS
CHEVROLET IMPALA 2006 121000 EXTERIOR LIGHTING:HEADLIGHTS

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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 (10-08-42-001E) 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.