One problem related to wiring has been reported for the 2008 Chevrolet Avalanche. The most recently reported issues are listed below.
I have a 2008 chevy Avalanche ltz, I have a problem with the dash light coming on with service air bag, wiring by the emergency brake pedal a problem. It happens when it running, stationary, when I start the truck. I took the truck to the dealership and they replaced the air bag and the air bag sensor. The light came back on and comes on intermittently. No fix as of yet. This happens all the time from March to present day still ongoing!!!!.