Lexus 2014 LX570 Owner's Manual page 52

1-2. Opening, closing and locking the doors
Locking the driver's door from the outside without a key
Move the inside lock button to the lock position.
STEP 1
Close the door.
STEP 2
The door cannot be locked if the "ENGINE START STOP" switch is in
ACCESSORY or IGNITION ON mode, or the electronic key is left
inside the vehicle.
Depending on the position of the electronic key, the key may not be
detected correctly and the door may be locked.
Rear door child-protector lock
52
LX570_OM_OM60L21U_(U)
The door cannot be opened from
inside the vehicle when the locks
are set.
Unlock
Lock
These locks can be set to prevent
children from opening the rear
doors. Push down on each rear
door switch to lock both rear
doors.