the rpo's are codes on your truck that tells you what the truck has and
stuff like that.
its a sticker in the glove box,
it should have 1 letter and 2 numbers and 2 letters and 1 number,
its always 3 letters and num,bers combo tho.
like AU0 and stuff like that.
there is a lost of these tho.
sorry i dont know what the code is tho for remote locks, but i am sure
someone here does.