2003 GMC Sierra Denali Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 GMC Sierra Denali

2003 GMC Sierra Denali Problems

Fuel Level Sensor Failure

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.

Popping Noise From Muffler Heat Shield

The muffler heat shield may become loose on the muffler causing a rattle or popping noise. Our technicians tell us there is a kit available from GM to correct this problem.

Corrosion on Battery Cable Ends

The battery may leak acid at the battery cable connections. As a result corrosion may form on the battery cable ends. Leaking batteries should be replaced and the cables need to be thoroughly cleaned or replaced if necessary.

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2003 GMC Sierra Denali Questions

Also the service stability system contiously flashes on and off...while the ABS (1 answer)

system is engaging and it gives the sound of a bad brake booster..

what causes Antilock brakes systems, the traction light to come on and the (1 answer)

and the brakes to engage without me stepping on brakes.

Rear steerig - servicing (1 answer)

When the rear streering is engaged electricly, it goes into gear but a light comes on that says;"Service".
The steering works for that one time and then disconnects
or goes out of gear and back to two wheel streering.
How do I service or take care of this problem myself?

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2003 GMC Sierra Denali Recalls

Recall 05V161000
ON CERTAIN PICKUP TRUCKS EQUIPPED WITH MANUAL TRANSMISSIONS AND BUILT WITH EITHER PBR PARKING BRAKE SYSTEMS OR TRW PARKING BRAKE SYSTEMS, THE PARKING BRAKE FRICTION LININGS MAY WEAR TO AN EXTENT WHERE THE PARKING BRAKE CAN BECOME INEFFECTIVE IN IMMOBILIZING A PARKED VEHICLE.
Rear Seat Belt for Smaller Passengers May Not Fit Correctly

The second row center seat belt routing may make it difficult to position correctly on smaller passengers. If the seat belt rides up to fit around the abdomen, the risk of internal injury is increased in a crash. Dealers will cut the guide loop, remove a portion of the loop, and the remaining sides should be folded over and secured with a retainer. The recall began July 21, 2005. The GM recall number is 05037.

Recall 04V129000
ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, THE GALVANIZED STEEL TAILGATE SUPPORT CABLES THAT RETAIN THE TAILGATE IN THE FULL OPEN (HORIZONTAL) POSITION MAY CORRODE, WEAKEN, AND EVENTUALLY FRACTURE. IF BOTH CABLES FRACTURED, THE TAILGATE WOULD SUDDENLY DROP AND STRIKE THE TOP SURFACE OF...

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