Both remotes suddenly stopped working a few months ago. Changed both batteries, went thru the sequence to reprogram. Nothing. Now in the past few weeks, they function fine one day, nothing the next. I am convinced that the remotes are fine. Is there an area I should in checking in the car itself. A loose or corroded wire?? HELP!! Trying to avoid dealer. By the way they are working today. First time since last Wednesday. :(