Give up !! I have done the up and down on the tire pressure, towing, not towing, it just keeps beeping and flashing at the oddest times. I have talked to the dealer and worked on it myself, even bought a compressor to play the up and down pressure game and nothing. Button pushed, unhooked, re-set, tried it all and it has a mind of its own. So my advice, get use to it as part of your dash. I now keep all tires at 60 psi front and back. Lately it beeps on the highway, flashes a few times and soon as I hit a pothole or bump, it goes off. I just ignore it now. But I still love my mega cab. We have a bus strike in Ottawa right now so need to sit 90-120 mins in traffic every night and no care because I am in my truck.