Rear door child-protector lock
The door cannot be opened from inside the vehicle when the lock is set.
1. Unlock
2. 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.

See also:
Have the vehicle inspected by your Lexus dealer immediately.
Failing to investigate the cause of the following warnings may lead to the system
operating abnormally and possibly cause an accident. Have the vehicle inspected
by your Lexus dealer immediately.
...
Locking or unlocking the phone book
Select “Phonebook Lock (Phbk Lock)”
or “Phonebook Unlock (Phbk Unlock)” using a voice command or the “TUNE/SEL” knob.
Input the PIN by either of the following
methods and select “ ...
Door Locks
■Locking the vehicle from inside
►Inside lock button
►Door lock switch
Operates all door locks.
1 Locks
2 Unlocks
■Locking the vehicle from outside
►Using the ...
