Chevrolet Avalanche Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Chevrolet Avalanche

Select your Chevrolet Avalanche's year to get more detailed information:

Chevrolet Avalanche Problems

Dashboard Cracking in 3 spots

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.

Check Engine Light Due to Gas Cap Issue

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

Replace spark plugs every 100,000 miles

The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.

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Chevrolet Avalanche Questions

I am getting a bad o2 sensor code from auto zone P1133 and have replaced it 2x (1 answer)

The code according to the Tech's at auto zone said I needed to replace the o2 sensor, bank 1 sensor 1. I have done this 2 times and they cannot clear the code. My truck is still getting terrible gas mileage and doesn't seem to have the same power it had before this problem. I also changed...

backup camera malfunction (1 answer)

cracked 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...

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Chevrolet Avalanche Recalls

Passenger 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.

Passenger 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.

Ignition Switch

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.

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Chevrolet Avalanche Reviews

Beautiful vehicle, good truck! Minor wear and tear, except the gas gage has sporadic behavior after 50,000 miles. Looks good and still turns heads!
I have cracks in the dashboard and brackets holding dash just worked themselves free.
I love love love my Avalanche truck. But I have some of the problems listed above. I have the check engine light on a lot and it is usually because of the 4WD issue or because of the gas cap. So damage to something may not be present and yet it's telling the code reader the whole thing needs to be replaced. Just make sure you get a second opinion before committing to a whole piece replacement.

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