My step-father has a completely stock 2009 TL-Tech. It has around 50k and for the most part has been problem free till now. Earlier this week his car would not start, all accy's worked and the car would not turn over. Had it towed to the dealer and they replaced a (main fuse), drove the car and said it was fine. I called them last time and asked what the problem was and they said it was a fluke thing and dont know what would have caused it but its fine now. Three days later, the car is having the same problem. He is waiting now for the them to tow it back. If I was local I would replace whatever fuse it is and have him drive it back up to the dealer but I am no where near him. Any ideas???

 

What comes to mind is a bad starter drawing too much current. If you are blowing the main fuse, something is drawing too much current. I say faulty starter.

 

+1 on the starter.

 

Dealer is ordering a new computer for the car, supposed to take a week to come in. They also destroyed the bumper towing it to the dealer...

 

Sounds like your dealer is guessing. I bet the new computer will not fix your problem. I hope they did a current test on the starter.