GMC Repair and Maintenance

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

GMC Problems

The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.

On certain 2005 - 2007 vehicles, General Motors has provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000 miles from the original "in service" date of the vehicle. Please contact your local GM dealer for more information.

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On vehicles equipped with rear air springs, the air compressor may fail causing the rear suspension to sit low.

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 Questions

I have had battery tested, plenty of power. What usually happens is I let the van sit for a while, and come back later and it will start no problem. I would leave it when I get to work, then it will start when I am off. But, when I turn it off and then try to restart, most often I get nothing. No...

I have gone about 240 miles and it is reading between 1/2 and 3/4 tank I know that's not correct. Then sometimes it will start to work. What would cause this?

works better after it warms up;what do I need to do to make it work better?

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GMC Recalls

In the affected vehicles, there is a flexible steel steel cable that connects the seatbelt buckle to the front seat frame. Over time the cable may fatigue and separate. If the steel cable separates, the seatbelt may not properly restrain the seat occupant, increasing the risk of an injury in a crash. Dealers will inspect and replace the affected seatbelt buckles (lap pretensioners) to correct this concern.

Increased resistance in the front seat mounted side impact air bag (SIAB) wiring harness can result in the SIAB and seat belt pretensioners not deploying as expected in the event of a crash, increasing the risk of personal injury. Dealers will replace the affected harness connections with soldered connections to correct this concern.

Certain vehicles are being recalled because if a crash were to occur not requiring deployment of the front airbags, the head of an unbelted front seat passenger could hit the instrument panel, resulting in personal injury because the panel may not sufficiently absorb the impact. As of this writing, General Motors is still working on a remedy for this concern.

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GMC Reviews

Dash light sometimes fail to come on at night. Radio light blinks. A/C switch only worked on high.

I have always driven chevy's and now own a 2005 gmc envoy. I have never had any complaints before but this vehicle is nothing but problems. Now I have a problem with the fuel guage and I got a letter stating to get it fixed BUT they will only pay 50% of the repair AFTER I pay all of it. What is with this????? I like to support them but will reconsider with my next vehicle.

My In-Laws bought the beautiful van off the showroom floor at the Cadillac/GMC dealership. I had a family of four and they adopted a little girl four years older than my oldest. With all my energy, I was always borrowing the van from my dad to take all the kids to the beach, the zoo, to parks. As the kids grew older, this was the perfect automobile for every adventure, including concerts at Gal...

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