2015 2019 Chevy Tahoe LTZ , GMC Yukon, Cadillac Escalade, Denali XL. I was getting Service suspension error codes displayed on dash. Also Service stabilatrac. Scanned for codes got lots of communication errors codes U0139, B127B. No communication with suspension control module. Upon inspection located damaged wiring harness is the rear of vehicle. Fixed damaged wires and restored proper function to vehicles systems.