If the range is OK, (works good up to about 10 feet from the car) then I would say the key and the IR receivers are doing their jobs and to not focus on either of these. If the only thing wrong is the red light blinks longer than programmed, and all else is functioning OK, possibly it is just some strange problem with whatever flashes the confirmation light on the receiver (I believe the IR control module does this). Or it could be a warning of some type. I can't think WHAT it would be warning though. Are all the doors locking properly, also the trunk? Maybe there is a problem with one of the door jamb switches so it thinks a door is still opened, or the switch for the trunk light.