GMC Repair and Maintenance

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

GMC Problems

Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail

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.

Inside Door Handles May Break

The inside door handles are prone to breaking.

ABS Light Due to Poor Electrical Ground Under the Battery Tray

A poor electrical ground under the battery tray may cause the ABS warning light to illuminate. Our technicians tell us that cleaning and properly securing this ground and also the main ABS ground on the frame rail below the drivers door may be necessary.

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GMC Questions

switching to 4hi from 2hi by itself what causes it (1 answer)

My truck will switch to 4hi when driving it down the road and turning the corner making it hard to turn

How do I installl the power window motor on the passenger side ? Regulator OK.. (1 answer)

Can you give me a sequence?
How do I support window and frame?
How does the motor gear install ?
How do I keep Reg. spring engaged?
Any other tips?

The window stopped 1/4 up but after cooling down it again works. I have the new motor to install and have the panel off.

cigarette lighter not work (1 answer)

is there a fuse

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GMC Recalls

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.

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.

Front Suspension Control Arm Welds Fail

The front suspension upper control arms may have welds that are not sufficient, resulting in separation of the arm from the bushing. Dealers will replace both the left and right upper control arms and realign the vehicle suspension free of charge to resolve the concern.

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GMC Reviews

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...
Why did my inside/outside a.c. door quit working. Button dash lights up but door does not move. 2002 GMC Sierra 2500hd duramax

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