Transmission Problems? Ask a Mechanic for Answers ASAP
Hi there, I am Cam. Can I get your first name please? I am not sure if you have used our service before or not. The experts here are third party contractors. Myself, I am a GM technician in a Gm dealership. I will be happy to help you. Please understand that my only compensation for the time spent helping you is by your rating of my service in a positive way. The more information you provide, the better the chances of getting your issue resolved. Also please reply if you have any followup questions. So about your vehicle,
What else is installed in your vehicle? Any remote starter? Any other recent repairs that maybe started this?
AS for the TBC IGN, is that TBC IGN 0 or TBC IGN 1?
TBC stands for Truck Body Control, and those feed the Body Control Module (BCM), so the issue may not be the transmission, but rather the body control module keeping things awake.