One problem related to wiring has been reported for the 2005 Chevrolet Avalanche. The most recently reported issues are listed below.
2005 Chevrolet Avalanche has a wiring problem with the speedometer, temp gauge reading, and other console readings. Chevrolet has recalled 2003 & 2004 trucks for the same problem. They will not include 2005-2008 eventhough, they know the same problem exists. This is going to cost $350 or more to fix.