2003 GMC Sierra 1500 HD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 GMC Sierra 1500 HD
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2003 GMC Sierra 1500 HD ProblemsCheck Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
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.
2003 GMC Sierra 1500 HD QuestionsReplaced Door ajar switch to rt rear door. Worked for a while now acting up again. Could it be the BCM??? (1 answer)
I have a engine light test guage it comes up as PO0155 02 Sensor Heater Circuit Circuit Malfunction (Bank 2 Sensor1)Can I repair this myself? I need to get the truck a smog test but can't because the engine light is on. I had it smog tested and it failed. Can you help me Thanks Woody
Sometimes the lights would come on after running but now they have just stopped coming on all together....
2003 GMC Sierra 1500 HD RecallsRecall 05V161000
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.