GM Repair Problems? Ask GM Repair Expert Now.
I am sorry for the long wait
if you disconnect both battery cables for 5 minutes then touch the 2 battery cables together for 2 minutes then reconnect the battery cables and start up the truck and do not touch the heater ac controller for 2 minutes will it work normally ?
that is the only manual way to recalibrate these
if by a rare chance it still does this the only other calibration will need to be done with a scan tool
by touching the 2 cables together will reset the computers in the truck and is a very common reset for computers in these trucks
it is not unreasonable and is done all the time
if that did NOT work then the only other way to re calibrate the actuators is with a scan tool that can communicate and perform specials functions in the BCM system