Re: my car's not working
I had a similar issue with a GMC Denali PU. I know this will sound strange, but my problem turned out to be one little fuse. I am not sure, but believe it was the transmission control module. Just check your fuse box for a faulty one. It took the dealer most of a day to find this & then it was just luck. They didn't charge me for the time & had used their laptop most of that time searching for the problem.