2002 GMC Sierra 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2002 GMC Sierra 1500
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
Our experts translate recalls into plain English
2002 GMC Sierra 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.
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 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.
2002 GMC Sierra 1500 QuestionsBrakes work, but as truck nears zero MPH the anti-locks engage. What is this? (1 answer)
2nd fuel pump. Security device or electronic or computer related malfunction but not really a fuel pump failure?