I've tried the method outlined in the manual multiple times (holding the lock button on the door handle and the panic button on the keyfob simultaneously for 5s), but all I get is the panic horn activated. Am I missing something? Any tips?
Yes, I'm glad you posted this, because I've been wanting to change mine to ALL doors. You must hold both the LOCK and PANIC on the FOB at the same time, then release the LOCK button. You should hear 2 sets of double beeps, confirming you are on the second selection, ALL DOORS.