Lexus ES300 Owner's Manual page 37

Locking with inside lock button
" 1 Lock 2 Unlock
Push in the lock button to lock and unlock the door.
The front doors can be opened by pulling the inside handles
even if the lock buttons are in the locked position.
CAUTION
Do not pull the inside handle of the front doors while
driving. The doors will open and an accident may occur.
Lexus strongly recommends that all children be placed
in the rear seat of the vehicle.
KEYS AND DOORS
Closing the door with the lock button pushed in will also lock
the door. Be careful not to lock your keys in the vehicle. Doors
cannot be locked when either front door is open and the key is
in the ignition.
If the vehicle is subjected to a severe frontal, rear or side
impact with the ignition switch turned to the "ON" position, all
doors will unlock automatically after a few seconds.
CAUTION
Before driving, make sure the doors are closed and
locked, especially when small children are in the
vehicle. Along with the proper use of seat belts, locking
the doors helps prevent the driver and passengers from
being thrown out from the vehicle during an accident.
It also helps prevent the doors from being opened
unintentionally.
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