Rick's Free Auto Repair Advice

Airbag light on GM vehicles

Why is Airbag light on GM vehicles

Diagnose and fix airbag light on

GM technical service bulletin #08-09-41-002H

GM has issued a service bulletin to address an airbag light on condition along with the following trouble codes: B0012, B0013, B0015, B0016, B0019, B0020, B0022, B0023, B0026, B0033, B0040, B0042 or B0044 on the vehicles listed below.

2005-2007 Buick Rainier

2006-2009 Buick Allure (Canada only), LaCrosse, Lucerne

2008-2014 Buick Enclave

2006-2011 Cadillac DTS

2007-2014 Cadillac Escalade Models

2008-2009 Cadillac XLR

2008-2011 Cadillac STS

2008-2014 Cadillac CTS, SRX

2005-2006 Chevrolet SSR

2005-2009 Chevrolet TrailBlazer, TrailBlazer EXT

2005-2010 Chevrolet Cobalt

2006-2007 Chevrolet Monte Carlo

2006-2011 Chevrolet HHR

2006-2014 Chevrolet Corvette, Impala, Malibu Models (includes Malibu Classic)

2007-2009 Chevrolet Equinox

2007-2014 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2008-2014 Chevrolet Express

2009-2014 Chevrolet Traverse

2005-2009 GMC Envoy Models

2007-2014 GMC Acadia, Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL

2008-2014 GMC Savana

2005-2006 Pontiac Pursuit

2005-2010 Pontiac G6

2006-2009 Pontiac Solstice

2007-2009 Pontiac Torrent

2007-2010 Pontiac G5

2008-2009 Pontiac G8

2007-2009 Saturn AURA, OUTLOOK, SKY

2008-2009 Saturn VUE

2008-2009 HUMMER H2

2007-2008 Daewoo G2X

2007-2009 Opel GT

Cause of airbag light on condition

GM uses a special connector for their airbags. The connector contains a special

airbag light on

Airbag connector with CPA clip

locking clip called a connector position assurance (CPA) clip to keep the two portions locked together. The electrical connector portions and the CPA seat independently of each other. When installed, the CPA isolates the shorting bars within the electrical connector, so it’s a critical part of the airbag system. If the CPA clip is missing or installed incorrectly, the system will set a trouble code and turn the airbag light on.

Fix the airbag light on condition

Use the trouble codes to determine which connector is generating the fault. Then power down the airbag system before proceeding. Examine the connector and CPA to see if the two halves are properly engaged and that the clip is in place. If the CPA is loose or missing, replace it.

Remove the CPA and disconnect the electrical connector. Examine the terminals for corrosion or contamination. Also check for proper tension or terminal damage. If you find corrosion or damage, you MUST replace the terminals with special terminals from the dealer.

The terminals used in airbag systems incorporate a special plating that

airbag light on

Airbag terminal repair kit

allows them to work with low energy. If you use ordinary terminals, you WILL have problems. GM offers a terminal repair kit just for this purpose #J-38125 SIR Terminal Repair Kit.

Once you have repaired the terminals, apply dielectric grease GMP/N 12345579 on the connector pins and terminals when reassembling.

Reassemble the connector ensuring you hear and feel an audible click. Then reinstall the CPA clip.

Finish airbag repair

Clear the airbag codes and check for airbag light on next IGN cycle.

©, 2018 Rick Muscoplat

Posted on by Rick Muscoplat


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