Electrical system: software
Chevrolet technical service bulletin PI1540 for 2007-2011 Chevrolet Malibu, 2007-2011 Chevrolet Impala and 2007-2009 Chevrolet Trailblazer and others.
- Bulletin number
- PI1540
- Component
- Electrical system: software
- Summary
- This preliminary informational bulletin provides diagnostic and repair information to correct a customer concern in which certain vehicles equipped with Gen 7 and OnStar, a recent over-the-air service update may have caused the OnStar system to become inoperative.
Owners of these vehicles have filed 4,474 complaints in the electrical category.
Vehicles covered
- Chevrolet Malibu 2007-2011 20072008200920102011
- Chevrolet Impala 2007-2011 20072008200920102011
- Chevrolet Trailblazer 2007-2009 200720082009
- Pontiac G6 2007-2010 2007200820092010
- Pontiac Grand Prix 2007-2008 20072008
- Chevrolet Colorado 2007-2011 20072008200920102011
- Buick Lacrosse 2007-2011 20072008200920102011
- GMC Canyon 2007-2011 20072008200920102011
- Saturn Aura 2007-2010 2007200820092010
- Saab 9-3 2009 2009
- Chevrolet Aveo 2009-2011 200920102011
- Pontiac Montana 2007-2009 200720082009
- Buick Lucerne 2007-2011 20072008200920102011
- Hummer H3 2007-2010 2007200820092010
- Chevrolet Uplander 2007-2009 200720082009
- Saab 9-5 2009-2010 20092010
- Cadillac DTS 2007-2011 20072008200920102011
- Hummer H2 2007-2010 2007200820092010
- Buick Terraza 2007-2008 20072008
- Saturn Relay 2007-2008 20072008
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