i actually had this happen to me not so long ago. I had my doors locked, and while iwas at work i lost the keys somewhere. So i had to break into my truck and use my spare key. I went to ebay and bought two spare FOB's, $20 a piece, and i activated them myself. sit in truck, close the door, hold the unlock button, turn the ignition on, then off, on then off, then release the unlock button on the door, take your FOB;s and hold the unlock and lock button on the FOB for 15 seconds and it will cycle the doors, then take your next fob, hold the two buttons down and it will do the same. you can hvae up to 4.