I have a 2003 Trailblazer LT . Today I noticed an ozone smell but didnt think anything about it. Got home and noticed my dayrunning lights or headlights wouldnt turn off. Tried switching the automatic DLR off but nothing. So looked under the hood at the fuses and noticed the #46 headlamp relay was burned and melted to the board. Its a 4 prong and the single prong in front of the other three is left in the fuse board. I have been having trouble for years of the headlamp relay going out all the time (replaced it twice in a year). So what do I do now? Electrical is not my expertise.

Thanks everyone!!!
Donna

 

My fuse box melted in my 03 Trailblazer as well. When it did the motor would not shut off. I had purchased the extended warranty, but the dealer said that it didn't cover this. I called Chevrolet and they replaced the whole fuse box for free. Your warranty is probably expired so you will have to pay for a fuse box yourself. The dealer wanted $600 from me to replace it. If Chevrolet hadn't paid for it, I would have gotten one from a junk yard and replaced it myself.