I have a 2004 Tundra Double Cab with dealer installed(I think) keyless entry. The remote has FCC ID ELVAT1B with 2 buttons on the front (these 2 buttons are not in the center of the remote, they are towards the left side of the remote) and 1 emergency button on the back. One of my remotes works fine, but the other doesn't work (has a new battery). Does it just need to be reprogrammed or is it bad? How do I program this "bad" remote?