One problem related to brake sensor has been reported for the 2006 Chevrolet Avalanche. The most recently reported issues are listed below.
I purchased the 2006 vehicle used in Dec 2013. In 2014 the transmission went bad. In 2015 I replaced the transmission and brake pads & roaders. 2016 replaced the fuel pump because it also went bad, replaced tires (normal wear), bought a new battery because it died. 2017 it needed two hub bearing and both front wheel hub replaced. This is an ongoing problem with this vehicle! I just found out my air bag sensor will need to be removed and replaced. All my money has been flushed down to this vehicle. I don't recommend anyone buying a chevy truck.