Lexus says they have not encountered a problem such as this. Twice now, the driver side rear door has come open while driving. The car is equipped with easy lock door mechanisms and the faulty door easy lock is definitely broken. However, the dealer says that the door should not be coming open even with the easy lock malfunctioning.
Check out spring housing inside the door lock actuator. I had the same problem, some work anf JB weld will fix it,
SOURCE: 2001 lexus ls430. Dead
Sounds as though when your battery died the engine imobiIiser locked down.
YOU MAY HAVE TO HAVE THE CAR TOWED TO A LEXUS DEALER AND HAVE THE MASTER KEY AND OTHERS REPROGRAMMED TO THE IGNITION...BUT
If you have your wallet key as well , try taking all to the airport. HOLD the card to the dash beside the ignition for at least 20 seconds, then try turning the key several times. I haven`t done an LS but the failsafe when a remote fails is to hold the key beside the ignition for at least 20 seconds ....
Also try the lock routine, but I think the issue is in dash..security needing to reboot to your key.
My understanding is that the lock routine re initialises the lock setstings when power is restored
SOURCE: driver side door does not lock or open with remote
does it work by the switch inside the car? if it doesn't, it is probably a bad door lock actuator inside the driver door. if it does work w/ the switch, then you may have a problem w/ the security module
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