GMC Sierra 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Sierra 1500
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GMC Sierra 1500 ProblemsHeating and AC Temperature and Air Delivery Mode Door Actuators May Fail
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 steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is for this condition.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
GMC Sierra 1500 QuestionsHow much does it take to remove the heater ducts for cleaning? (2 answers)
Vermin entered the heater ducts over the winter and died there. How much will it take to disassemble the heating ducts to get them out? Is there danger of compromising the air bags with this repair?
It will run ok on flat land. It seems to shift ok when in town. But if you throttle it to pass or climb hill, it falls and acts like it is braking and downshifts.
GMC Sierra 1500 RecallsFront Suspension Control Arm Welds Fail
The front suspension upper control arms may have welds that are not sufficient, resulting in separation of the arm from the bushing. Dealers will replace both the left and right upper control arms and realign the vehicle suspension free of charge to resolve the concern.
The tensioner cable for the driver's seat belt may be positioned such that the driver slides over it, resulting in fatigue of this cable. This could cause it to separate from the seat belt. The driver may not be properly protected in a crash if this happens. Dealers will modify vehicles to prevent the tensioner from being damaged, and will repair any tensioner that has already been damaged free of charge to resolve the concern.
The audio warning that sounds to alert the driver that the safety belt is not fastened or the door is open with the key still in the ignition may not operate. Dealers will update the radio software free of charge to resolve the concern.