2011 GMC Sierra 1500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2011 GMC Sierra 1500
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2011 GMC Sierra 1500 ProblemsSpeedometer or Other Instrument Panel Gauge May Work Erratically
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.
The GMC Sierra 1500 uses a throttle position sensor (TPS) which commonly fails and causes:
- Check engine light illumination
- Reduced Power message
- OBD trouble code P2135
This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.
To correct this issue, the wiring harness, connector, and throttle position sensor must be inspected, tested, and/or replaced. The most common cause is a faulty TPS.
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.
2011 GMC Sierra 1500 Questionsmy gmc truck makes a roaring noise, like an airplane about to take off. and the (1 answer)
check engine light comes on - info panel says engine is hot but
all the instrument panels say normal - truck has 61,670 miles
I recently purhaced a GMC Serria 1500, 6.2L 403hp pickup new from a dealer. The first week using the gasoline the dealer had in it I got almost 15mpg. The subsequent 4 or 5 tanks of gasoline it gave me 14mpg acording to the average mpg gage on the vehicle computer. I made it a point to drive i...
2011 GMC Sierra 1500 RecallsPassenger Frontal Air Bag Inflator Ruptures On Deployment
The passenger frontal air bag inflator may rupture on deployment, causing metal fragments to come through the air bag and injure occupants. Dealers will replace the passenger frontal air bag inflator free of charge to resolve the concern.
The ignition switch actuator can bind causing the ignition switch to stick in the "start" position. If this were to occur the actuator can unexpectedly release, cause the ignition switch to snap back into the "Accessory" position. This would cause the engine to turn off with an associated loss of brake and steering power assist. If these conditions were to lead to a crash the airbags may not deploy as expected. Dealers will inspect and replace the ignition lock housing as necessary to correct this concern.
The intermediate steering shaft attaching bolts may not have been tightened to the proper specification. This could allow the steering shaft to separate. The driver could experience a loss of steering ability, increasing the risk of a crash. Dealers will inspect and ensure the intermediate steering shaft bolts are tightened to the proper specification. This recall is expected to begin on July 13, 2011. The General Motors recall number is 11191.