2012 Buick LaCrosse electrical system problems

Defect

General Motors (GM) is recalling certain model year 2012 and 2013 Buick LaCrosse and Regal, and model year 2013 Chevrolet Malibu Eco vehicles equipped with eAssist. These vehicles may have a condition in which the Generator Control Module (GCM) may not function properly. This could cause a gradual loss of battery charge and the illumination of the malfunction indicator light.

Consequence

If the vehicle is continued to be driven, the engine may stall and/or the vehicle may not start. In addition, there may be a burning or melting odor, smoke, and possibly a fire in the trunk.

Remedy

GM will notify owners and dealers will test the GCM and replace it, as necessary, free of charge. The recall began on June 11, 2013. Owners may contact GM at 1-800-521-7300. GM's recall campaign number is 13136.

Defect

GM IS RECALLING CERTAIN MODEL YEAR 2012 BUICK LACROSSE PASSENGER VEHICLES MANUFACTURED FROM JUNE 9, 2011, THROUGH JULY 2, 2011, FOR FAILING TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 126, "ELECTRONIC STABILITY CONTROL SYSTEMS (ESC)." THE STABILITRAK SYSTEM HAS AN INCORRECT CALIBRATION THAT MAY CAUSE THE SYSTEM TO NOT PROPERLY DETECT IF A SENSOR WERE TO MALFUNCTION, AND THE WARNING LIGHT INDICATING THAT THE SYSTEM IS NOT OPERATING WOULD NOT ILLUMINATE, AS REQUIRED IN THE SAFETY STANDARD.

Consequence

THE IMPROPER DIAGNOSING MAY CAUSE THE ESC TO FALSELY ACTIVATE, RESULTING IN SUDDEN CHANGES IN VEHICLE HANDLING AND DECELERATION, PARTICULARLY AT HIGHER SPEEDS, WHICH MAY CAUSE THE DRIVER DIFFICULTY IN MAINTAINING THE VEHICLE'S DESIRED PATH OF TRAVEL AND DESIRED VEHICLE SPEED, AND COULD RESULT IN A CRASH WITHOUT WARNING.

Remedy

GM DEALERS WILL REPROGRAM THE ELECTRONIC BRAKE CONTROL MODULE FREE OF CHARGE. THE SAFETY RECALL BEGAN ON SEPTEMBER 12, 2011. OWNERS MAY CONTACT BUICK AT 1-866-608-8080.