2003 Chevrolet Avalanche 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Chevrolet Avalanche 1500
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2003 Chevrolet Avalanche 1500 ProblemsService 4WD Message May be Displayed
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 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.
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
2003 Chevrolet Avalanche 1500 QuestionsInterior lights (1 answer)
my interior lights will not come on. I checked the bulbs and they are ok. the front door lights work but the not the rear.
There is not really anything else to tell. Going by the owners manual , further damage may result if the remain on all of the time.
Cam sensor spark plugs wires coil crank sensor have all been changed. Just replaced the cats. And the p0306 is still coming up, what else could it be.?
2003 Chevrolet Avalanche 1500 RecallsRear 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.
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.