GMC Repair and Maintenance

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

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GMC Problems

4WD Transfer Case Position Sensor/Selector Switch May Fail

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.

The Upper Dash May Crack

The upper dash may crack, most commonly on vehicles in warm climates and exposed to a lot of sunlight. The common repair is to replace the upper instrument trim panel. Information on a technical service bulletin or extended warranty is not available at this time.

AC Blower Inop Due to Failed Resistor

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

Lever shift seem to be stuck in drive and can't start the car (1 answer)

I was shifting gear to back up and suddenly was not able to shift gear and the gear shift lever seems loose and will not shift to any other gear and seems to be stuck in drive

When I turn on the radio it goes into scanning by itself. there is no scan buton (1 answer)

Have to turn radio off for 2 to 3 minutes then back on for the scanning to stop

Help can't figure out why I lose power when use my lights or turn signals (1 answer)

My gauges are not reading right and it loses power if I run any accessories. Its not the alternator or fuses.

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GMC Recalls

Ignition Key May Be Removed Without Transmission Lever Shifted To Park

The ignition key may be able to be removed from the ignition switch without having the transmission shift lever securely in the park position. This could allow the vehicle to roll unexpectedly. Dealers will inspect and if necessary replace the key cylinder lock housing free of charge to resolve the concern.

Tire Placard Has Improper Tire Pressure And Tire Size Information Listed

The tire placard may list the improper tire size and inflation pressure. Dealers will inspect and replace affected certification labels free of charge to resolve the concern.

Passenger Frontal Air Bag Inflator Ruptures On Deployment

The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.

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GMC Reviews

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...
I've had the vehicle for six months. It just went through its first inspection and it only needed tie rods. I consistently have check engine light issues with the gas cap and others that I am unaware of however the truck runs great. I recently installed an "innovative" power performance chip and you can definitely feel the boost . Has anyone installed a performance air intake system, if so i...

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