sweet trick i learned....if you ever lock your keys in the car, and you have the keyless entry system and a cell phone, it will work.
if you have a second set of keys at home with the remote on them, call someone at your house from your cell phone, and make sure you call their cell(doesn't work with landlines). after they've answered and have your other set of keys, hold your phone next to the lock on your truck, and have the other person hold the remote to their phone and press the button. it should unlock. i was amazed when i tried it