One problem related to instrument panel has been reported for the 2007 Chevrolet Avalanche. The most recently reported issues are listed below.
The speedometer is sporadically malfunctioning. It has happened to me three times and sometime the speedometer will register as high as 30 mph when I am stopped or show about 70 when I am doing about 40. Then after a day or two it will start to work again. I see where many others have filed a complaint.