Lexus 2004 GX470 Owner's Manual page 38

The power door lock switch can be reset in the following ways.
D Turn the ignition key to the "ON" position.
D Unlock all the side doors and back door with the key or
wireless remote control.
D Unlock the driver's door or front passenger's door with the
inside lock button, and then unlock all the doors with the
power door lock switch.
Auto door locking function*: All the side doors and back door
will lock automatically when the selector lever is moved out of
"P" position. This auto door locking function is operable if any
doors are unlocked while the engine running.
NOTE:
* This auto door locking function can be disabled or
changed.
Ask your Lexus dealer for details.
Locking with rear door child-protector
"
1 Unlock 2 Lock
Whenever small children are in the vehicle, lock the rear
door so that it does not open from the inside. To do this,
move the lever to the "LOCK" position as shown and then
close the door.
KEYS AND DOORS
23