2012 GMC Sierra 1500 Problems

RepairPal has identified the most common problems with the 2012 GMC Sierra 1500 as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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6
Known Problems

The 4WD transfer case encoder motor position sensor or the selector switch may fail causing the service 4WD message to be displayed. Fault code(s) stored in the transfer case control module will be of assistance in determining the exact fault causing the message to be displayed.

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

The inside door handles are prone to breaking.

The steering wheel position sensor may fail, resulting in the service stability message being displayed.

One or more heater & AC (HVAC) temperature and/or air delivery mode door actuator may fail, resulting in improper temperature or air delivery. If this occurs, fault code(s) should be stored in the HVAC control module which should assist in diagnoses.