2011 GMC 2500HD electrical issues
 

I'm hoping someone else out there may be having the same problem as I am.... It started a couple of years ago, happening when the weather would hover around freezing, but has been steady for the last year or so. When I start the truck, the dash readout tells me that the rear tires are low, the trailer brake system needs service, the stabilitrak needs service, and a few more warnings. I can't remember right now.

A mechanic friend put his OBD reader on it and it said RR wheel sensor was bad... new one was installed and problem continued.

I'm sure that there is a problem either with the wiring harness/connections/computer, but am hoping someone may have had this issue and can point me in the right direction.

Thanks