Doors won't lock with remote on my 2002 Lexus GS 300.

when you lock the doors it automatically arms itself. you can disarm by inserting the key in the driver's side door and unlock the door lock, it should disarm if the alarm goes off.

May need new actuator. Try a slight lubricant like wd40 if that does not work. Try working switch back and forth. They usually start having problems when they get this old. You can have it replaced, but toyota /lexus is notorious for labor intensive repairs with can be costly if you take it to a dealer or very time consuming if you replace the actuator yourself.

i have a 1997 lexus es300 having problems with unlocking the doors and the trunk with the keyless remote the doors will lock with the keyless remote

sounds like a bad reley to me dude

have you door lock module and the the brain in the key one of those is your problem have them check

if you turn the key twice it should unlock and lock all doors until you can figure out the remote/lock switch problem.sounds like a door lock actuator problem on drivers door.I would start there.

try this:

1. Start with key out of ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into the ignition (DO NOT Turn) and Pull key out.
3. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power lock switch on the drivers door, perform 5 lock/unlock cycles
starting with lock. Use an even pace and try to go about one cycle per second.
(1Cycle = 1 lock and 1 unlock).
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Remove the key from the ignition.
5. Press any button on remote for a minimum of 1 second.
System should now lock and unlock doors once.

6. Close and open drivers door.
7. Press any button on remote for a minimum of 1 second. System should now lock and
unlock doors. Once to confirm programming, twice to indicate programming failed.
8. Repeat steps 5, 6 and 7 for additional remotes.

Does that doors' lock get any power when you hit the button to lock? You may have to check the wiring going to the door and search the internet to find out what wire gives power to the lock.

fault in drivers lock probably micro switch or solenoid get tested

More often than not, the long "beeeeeeeeeep" can be traced to a door that is not closed properly, or a dome light switch for a door that is not working properly.