Service Update (revised population)
Chevrolet technical service bulletin 12238B for 2013 Chevrolet Malibu, 2012-2013 Buick Regal and 2012-2013 Buick Lacrosse.
- Bulletin number
- 12238B
- Component
- Electrical system
- Summary
- 12238B - Service Update (revised population). The Generator Control Module (GCM) may not function properly, resulting in the gradual loss of battery charge, illumination of the MIL, and eventual engine stall or no start condition. Dealers are to inspect and replace, if necessary, the GCM.
Owners of these vehicles have filed 548 complaints in the electrical category.
Vehicles covered
- Chevrolet Malibu 2013 2013
- Buick Regal 2012-2013 20122013
- Buick Lacrosse 2012-2013 20122013
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