your going to need the dealer to come out with a laptop. this is a constant problem on these units blamed on static. they lose their learned values and the truck needs to be reset to default then all configurations reset and learns completed. with that said, is your static strap ok? your lift/lower pot may be bad as well. IMO truck is a pos. dual drive on a 4 wheel electric... great idea (I say that as sarcastically as possible)