The speedometer or other instrument panel gauge may begin to work erratically at times. Our technicians tell us that the instrument cluster must be sent to a repair facility to correct this fault. The warranty has been extended on some of these units to 7 years or 70,000 miles.
Resources for the Repair and Maintenance of your 2003 GMC Sierra 2500 HD
2003 GMC Sierra 2500 HD
2003 GMC Sierra 2500 HD Problems
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.
The daytime running lights are prone to burning out. Our technicians tell us that the light sockets may show signs of heat damage but usually are OK. Always be sure to use the correct replacement bulb for the best life expectancy. The new bulb recommendation for 2001-2003 models is #4114K (trade number).
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Units with 4 wheel disk brakes may develop at situation where the park brake does not hold as it should. Our technicians tell us this can be caused by worn park brake shoes located inside the drum section of the rear brake disks. The worn shoes should be replaced and properly adjusted to correct this issue.
2003 GMC Sierra 2500 HD Recalls (Recent)
Summary: CERTAIN EXTENDED AND REGULAR CAB PICKUP TRUCKS AND CARGO VANS CONVERTED TO COMPRESSED NATURAL GAS (CNG) FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, 'CHILD RESTRAINT ANCHORAGE SYSTEMS.' THESE VEHICLES HAVE ONE SEATING POSITION, THE CENTER REAR SEAT, EQUIPPED WITH CHILD RESTRAINT LOWER ANCHORAGES.Learn more »
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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.
Summary: 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 THE REAR BUMPER.Learn more »
Summary: 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.Learn more »
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The hydro-boost housing relief valve bore may be out of specification. The seal may fracture as a result, which may reduce braking assist and slightly increase the steering effort while braking. Under certain conditions, more braking effort will be required to stop the vehicle. Dealers will replace the hydro-boost relief valve. The recall began June 18, 2004. The GM recall number is 04004.
2003 GMC Sierra 2500 HD Questions and Answers
I am new to your site - one that seems to be well done and needed. I do have one question on a repair I had completed recently at my GMC dealer at a cost of approximately $700. Your site gives a ...
My truck is reading a code # P0741 TCC curcuit stuck off and P0719 torque converter switch B curcuit low ???? Whats going on and how can it be fixed ????
The truck has 88kmi.At 60-70 mph I get a p0300 code.The misfires are listed as cyl 1 and cyl 6.Here is a list of things I have tried with little or no change:new plugs/new wires/8 new injectors/new...
I'm having major problems with my truck. The AC blower motor is not turning on and the abs lights & brake lights are on and won't turn off. Can anyone tell me what's happening?
I have replaced all blinker bulbs in case of back feed from system. It does this intermitantly and seems to get worse in rainy/humid and cold conditions
2003 GMC Sierra 2500 HD Reviews
i currently have my 2003 gmc sierra 2500 in the repair shop at a local gm dealer. it has been there over a week and they cannot figure out what is wrong with it. The range shift inhibitor light came on the dash board so they replace the transfer case for $2100 and the light is still on and they cannot figure out why. They said the gears were wore out in the 4 wheel drive but i find that hard to believe as it only has 83000 miles and i never used it for heavy duty 4wheel driving just occasional driving on snow roads and driveways nothing major. If you can figure out what is wrong would greatly appreciate any ideas as the dealer cannot seem to figure it out. I would like my truck back without a larger bill already bad enough. thanks for any help
owned for seven years since it came off the lot new and no problems ever reliable and can climb any moutain top like a cat. only problem ever was the ac and now u have to have it on when u start the vehicle but thats it
This truck is starting to nickel and dime me. The block is leaking coolant. The windshield is leaking when it rains (the mats are wet after a rain). Tranny slipping occasionally. Ignition sometimes won't immediately disengage. Trim package is bubbling. This truck heading down the Lemon Path.....
comfortable and with the 6.0 liter gas V8 an acceptable tow vehicle for my 3 horse trailer. Lots of trouble early on with the steering sector that GM didnt find a solution for until AFTER it was off warranty. Poor gas mileage empty (12 to 12.5) but get about 11 when towing a full trailer.
Replaced a radiator at only 70,000 miles and have had trouble with ABS sensors at about 60,000.
I don't have a Duramax I only have the 6.0 Liter Vortec engine but it pulls just fine. I love this truck to death!!! I just need to find a solution on how to get better fuel economy and how to fix my cruise control that just went out about a week ago.