What's up with my 2003 RX these days? When I use the remote to lock
the door locks, the driver's door sometimes doesn't lock (although the
others do) and when I press the remote's lock button twice, the
headlights fail to go off as they used to. Twisting the key in the
actual door lock, however, locks the driver's door correctly (but the
headlights stay on then go off in a couple of minutes but perhaps that
is normal when the remote isn't used?)

On the inside, if I use the driver's door lock "unlock"button, it
unlocks the doors, then when I try to use the button to "lock" the
doors it locks all. However, if I use the inside button to unlock the
doors then lock the doors, it locks all the doors EXCEPT the driver's
door which I have to manually lock by hand.

Is this a mechanical issue, an electrical issues?....

My local Toyota dealer services my RX and my next routine service
isn't due until October. Is this one that Lexus needs to repair or can
my Toyota dealer handle it?

Thanks.