2011 Chevrolet Avalanche Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2011 Chevrolet Avalanche
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2011 Chevrolet Avalanche ProblemsReduced Power and Check Engine Light
The throttle position sensor (TPS) on the Chevrolet Avalanche, including the Black Diamond Edition, is notorious for failure which causes:
- Check engine light
- 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.
The upper dash may crack, most commonly on vehicles in warm climates and exposed to a lot of sunlight. The common repair is to replace the upper instrument trim panel. Information on a technical service bulletin or extended warranty is not available at this time.
2011 Chevrolet Avalanche Questionscracked dash (1 answer)
Why hasn't GM come up with a fix on the dash cracking at the air bag? I place a level over the crack and it looks like the air bag is not installed properly or the dash is too small. Mine has 2 cracks one at the airbag the second is way over by the drivers side. The speaker rattles anytime I...
My dash on my 2011 Avalanche is cracked in two places. Is there a replacement that chevy is offering since is bad material and happening on 2006-2012's?
2011 Chevrolet Avalanche 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 rear axle cross pin may break. The cross pin is an internal component of the rear differential, which is housed in the rear axle assembly. If the cross pin breaks, the rear axle may lock, which could result in loss of control and a crash. Dealers will install a new rear axle cross pin to correct this concern. This recall should begin no later than January 25, 2011. The General Motors number for this recall is 10426A.