I had new Hankooks installed on my truck yesterday at Discount Tire (great price and service FYI), and paid extra for the TPMS rebuild kit. About half an hour after leaving, the TPMS light started flashing. Now when I turn the truck on, the light flashes for about a minute then stays lit. I have read the manual and past threads, and they indicate this means there is a malfunction with the TPMS system, not low tire pressure (which is indicated by a steady light). I have tried resetting the system as described in the manual but the problem persists.
Is there any possible explanation for this other than a broken sensor? I know I am going to have to bring it back to Discount Tire, so the only reason I'm asking is it's an hour away and across a border.