I recently purchased a 2002 Chevy Avalanche. When i test drove it the parking brake worked fine. Two days later after using the parking brake several times, i went to a self serve car wash to wash my truck. Whats strange is the parking brake has not worked properly since I left the car wash. I don't know if the car wash had anything to do with it, or not, but it is a coincidence. When I apply the parking brake now, the truck wants to roll and it doesn't hold the truck. What is wrong and how much would it cost to fix it? Another thing, my illuminated radio preset station lights aren't working properly either. The only thing wrong with them is the #3 and #6 don't illuminate at night. Every other light on the radio does except the #3 and #6. Please help me!!!! What is wrong? Thanks.
