I have a 2005 Tacoma (TRD Sport). Recently when I press the unlock button on my remote two times to unlock all the doors, 3 of the 4 doors unlock and 1 of them does not. The rear passenger side door remains locked when all others unlock. I have to press the lock and unlock buttons several times to get it to finally unlock. Same thing happens when I use the interior lock/unlock button on the drivers side door. That one door will not always unlock when it should -- it does however seem to lock every time as it should. The problem is only when unlocking. It does not happen all the time, only about 90% of the time. Any ideas what I should be looking at to fix the problem? Of course, this happened just outside of warranty. I have searched the forums and haven't been able to find anybody else talking about this problem.
Any help is appreciated. Thanks!