I found mine wasn't working this summer. I thought it had gone bad. I went to the dealer and asked to read their manual so I could do some diagnostics. It turns out that the climate control system has it's own ECM and once in a while it looses it's mind. There is a reset proceedure where you hold one of the keys down while cycling the ignition I think. I copied the pages and have them at home. If it turns out not to be a simple fuse or something, email me and I'll try and find the copies I made. I'm on vacation after Sat though.