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TSB: BUICK AURA, EQUINOX, G6, IMPALA, LUCERNE, MALIBU, MONTANA, RELAY, TORRENT, UPLANDER, VUE (2006–2011)

Bulletin 120604003A — April 1, 2014

Bulletin Details

Bulletin ID120604003A
ManufacturerBUICK
ModelsAURA, EQUINOX, G6, IMPALA, LUCERNE, MALIBU, MONTANA, RELAY, TORRENT, UPLANDER, VUE
Model Years2006–2011
Date IssuedApril 1, 2014
Date Added to NHTSADecember 11, 2023
ComponentPOWER TRAIN
Vehicles Affected74 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

Malfunction Indicator Lamp (MIL) Illuminated, Reduced Engine Power Message Displayed, DTC P2135 Set

Affected Vehicles

MakeModelYearComponent
CHEVROLET IMPALA 2011 120000 EXTERIOR LIGHTING
CHEVROLET IMPALA 2011 100000 POWER TRAIN
BUICK LUCERNE 2011 120000 EXTERIOR LIGHTING
BUICK LUCERNE 2011 100000 POWER TRAIN
CHEVROLET IMPALA 2010 120000 EXTERIOR LIGHTING
CHEVROLET IMPALA 2010 100000 POWER TRAIN
BUICK LUCERNE 2010 120000 EXTERIOR LIGHTING
BUICK LUCERNE 2010 100000 POWER TRAIN
SATURN AURA 2009 100000 POWER TRAIN
SATURN AURA 2009 120000 EXTERIOR LIGHTING
CHEVROLET EQUINOX 2009 100000 POWER TRAIN
CHEVROLET EQUINOX 2009 120000 EXTERIOR LIGHTING
PONTIAC G6 2009 120000 EXTERIOR LIGHTING
PONTIAC G6 2009 100000 POWER TRAIN
CHEVROLET IMPALA 2009 120000 EXTERIOR LIGHTING
CHEVROLET IMPALA 2009 100000 POWER TRAIN
BUICK LUCERNE 2009 120000 EXTERIOR LIGHTING
BUICK LUCERNE 2009 100000 POWER TRAIN
PONTIAC MONTANA 2009 100000 POWER TRAIN
PONTIAC MONTANA 2009 120000 EXTERIOR LIGHTING
PONTIAC TORRENT 2009 120000 EXTERIOR LIGHTING
PONTIAC TORRENT 2009 100000 POWER TRAIN
SATURN VUE 2009 120000 EXTERIOR LIGHTING
SATURN VUE 2009 100000 POWER TRAIN
SATURN AURA 2008 120000 EXTERIOR LIGHTING
SATURN AURA 2008 100000 POWER TRAIN
CHEVROLET EQUINOX 2008 100000 POWER TRAIN
CHEVROLET EQUINOX 2008 120000 EXTERIOR LIGHTING
PONTIAC G6 2008 100000 POWER TRAIN
PONTIAC G6 2008 120000 EXTERIOR LIGHTING
CHEVROLET IMPALA 2008 100000 POWER TRAIN
CHEVROLET IMPALA 2008 120000 EXTERIOR LIGHTING
CHEVROLET MALIBU 2008 120000 EXTERIOR LIGHTING
CHEVROLET MALIBU 2008 100000 POWER TRAIN
PONTIAC MONTANA 2008 100000 POWER TRAIN
PONTIAC MONTANA 2008 120000 EXTERIOR LIGHTING
PONTIAC TORRENT 2008 120000 EXTERIOR LIGHTING
PONTIAC TORRENT 2008 100000 POWER TRAIN
CHEVROLET UPLANDER 2008 120000 EXTERIOR LIGHTING
CHEVROLET UPLANDER 2008 100000 POWER TRAIN
SATURN VUE 2008 120000 EXTERIOR LIGHTING
SATURN VUE 2008 100000 POWER TRAIN
SATURN AURA 2007 120000 EXTERIOR LIGHTING
SATURN AURA 2007 100000 POWER TRAIN
CHEVROLET EQUINOX 2007 100000 POWER TRAIN
CHEVROLET EQUINOX 2007 120000 EXTERIOR LIGHTING
PONTIAC G6 2007 100000 POWER TRAIN
PONTIAC G6 2007 120000 EXTERIOR LIGHTING
CHEVROLET IMPALA 2007 120000 EXTERIOR LIGHTING
CHEVROLET IMPALA 2007 100000 POWER TRAIN
CHEVROLET MALIBU 2007 120000 EXTERIOR LIGHTING
CHEVROLET MALIBU 2007 100000 POWER TRAIN
PONTIAC MONTANA 2007 120000 EXTERIOR LIGHTING
PONTIAC MONTANA 2007 100000 POWER TRAIN
SATURN RELAY 2007 120000 EXTERIOR LIGHTING
SATURN RELAY 2007 100000 POWER TRAIN
PONTIAC TORRENT 2007 100000 POWER TRAIN
PONTIAC TORRENT 2007 120000 EXTERIOR LIGHTING
CHEVROLET UPLANDER 2007 120000 EXTERIOR LIGHTING
CHEVROLET UPLANDER 2007 100000 POWER TRAIN
SATURN VUE 2007 100000 POWER TRAIN
SATURN VUE 2007 120000 EXTERIOR LIGHTING
PONTIAC G6 2006 120000 EXTERIOR LIGHTING
PONTIAC G6 2006 100000 POWER TRAIN
CHEVROLET IMPALA 2006 100000 POWER TRAIN
CHEVROLET IMPALA 2006 120000 EXTERIOR LIGHTING
CHEVROLET MALIBU 2006 100000 POWER TRAIN
CHEVROLET MALIBU 2006 120000 EXTERIOR LIGHTING
PONTIAC MONTANA 2006 100000 POWER TRAIN
PONTIAC MONTANA 2006 120000 EXTERIOR LIGHTING
CHEVROLET UPLANDER 2006 120000 EXTERIOR LIGHTING
CHEVROLET UPLANDER 2006 100000 POWER TRAIN
SATURN VUE 2006 120000 EXTERIOR LIGHTING
SATURN VUE 2006 100000 POWER TRAIN

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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 (120604003A) 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.

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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.

Back to All TSBs