GMC Repair and Maintenance

A guide to problems, costs, maintenance and repair for your GMC

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GMC Problems

Erratic Fuel Gauge Operation

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.

Power Door Lock Actuators May Fail

The power door lock actuators may become slow to operate or stop working completely and require replacement.

Loss of One or More HVAC Blower Motor Speeds

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

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GMC Recalls

Vehicle Equipped With Improper Inside And Outside Mirror Combinations

The vehicles were built with an improper mirror combination of no inside rear view mirror and a right hand convex mirror. Vehicles require both side mirrors being flat if no inside mirror is provided. Dealers will install a right hand flat rear view mirror free of charge to resolve the concern.

Software Defect May Prevent Airbags From Deploying

If the airbag system is in a diagnostic test mode during a crash, the deployment of the frontal airbags and seat belt pretensioners will not occur. Dealers will reflash the system software. In the event the vehicle has had a previous airbag deployment, the airbag sensing and diagnostic module (SDM) will be replaced free of charge. 

Windshield Wipers Stop Working

The windshield wiper module ball joints may corrode and wear over time, resulting in the wipers failing to operate. Dealers will make repairs (the repair procedure is not available as of the time of this writing) free of charge to resolve the concern.

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GMC Reviews

Bought used with 47201 on odometer, runs great, look great, really happy with my purchase. Only thing had to replace was the right passenger headlight bulb.
I purchased a 2007 GMC Acadia.. BIGGEST MISTAKE of my life... 70,000 miles transmission went on it... 75,000 miles timing chain went on it.. 80,000 miles censors went on it... Now timing chain just went again 2 days before I have to go back to work.. I'm a single father raising 2 kids and can't afford this shit.. I am totally screwed...
I bought my 2001 Sierra PU new in Nov. 2000. It's now June 18, 2016 - 317,000+ miles later on original motor. Notes: 1. Replaced radiator at 293,000+ miles. 2. Replaced transmission at 238,000 miles 3. Replaced alternator at around 275,000 miles. 4. Fuel pump - worst part on the truck. I've replaced 4 times at least, almost $700 a pop. It's in a funky location so it's the labor of...

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