Lexus LS 600h L 2012 Owner's Manual page 61

1-3. Opening, closing and locking the doors and trunk
Operation signals
■
Doors: A buzzer sounds and the emergency flashers flash to indicate that the doors
have been locked/unlocked. (Locked: Once; Unlocked: Twice)
Trunk: A buzzer sounds to indicate that the trunk has been unlocked.
Windows and moon roof: A buzzer sounds to indicate that the windows and moon
roof are operating.
Door lock buzzer
■
If an attempt to lock the doors is made when a door is not fully closed, a buzzer
sounds continuously. Fully close the door to stop the buzzer, and lock the vehicle
once more.
Adjusting the volume of the buzzer
■
The operation signal buzzer and door lock buzzer can be set to the desired volume.
58
Increases the volume
Decreases the volume
The buzzer can be turned off by turning the
knob fully clockwise.