Chevy and GMC Duramax Diesel Forum banner

Help with an 09 2500

591 views 2 replies 3 participants last post by  jc1843 
#1 ·
I have a2009GMC2500, last Friday I had to pull the truck out of a slick spot. It wasn't too bad just needed some assistant because it was pulling a trailer. We pulled it backwards about 20ft and the brake light came on. It then acted like it was stuck in gear. I presume 4th after reading online. Got the truck back to the shop and pulled the codes. The only one was U0101 lost communication with the TCM. I tried clearing it out but it keep just coming right back. I then unhooked the batteries and got the code cleared. Took off driving and everything was fine till about 2 miles and then the abs, brake and traction control lights came on and it was back in 4th gear. Checked all the connections at the transmission and TCM and everything was fine. Could the TCM have gone out our do I have other problems? Also can I buy a used TCM and put it in the truck without reprogramming? Thanks
 
#2 ·
I might be waaaaayyy wrong here.. But, I remember hering the new trucks will act all weird that have the backup sensors when you have a trailer on?



 
#3 ·
Moved to Trans for more help
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top