Two problems related to warning light on have been reported for the 2005 Chevrolet Avalanche. The most recently reported issues are listed below.
Air bag warning light is on.
I have had my sensor light and the warning light that says "service airbags" come on and it won't go off. I have been on a few auto forums about this and there are hundreds of people with the same problem. The dealers can't seem to figure out what it is and people are spending hundreds of dollars to get it fixed, but it doesn't.