One problem related to tail light switch has been reported for the 2009 Chevrolet Avalanche. The most recently reported issues are listed below.
Ipcw inprocarwear. Com from California-USA. I purchased tail lights for my truck from this website, the lights started on fire and almost burned my truck down. I purchased a second set thinking the first where faulty and the second set also failed to work properly and have electrical arc marks inside. I am not the only complaint with this brand of lights on the internet. I noticed smoke and burning smell when I got home thank god I wasn't running to a grocery store and left kids in the truck when the first set of tail lights I purchased started on fire. How can this product be allowed when there are many complaints on the internet.