Lexus RX 450h 2012 Owner's Manual page 56

Effective range (areas within which the electronic key is detected)
Operation signals
■
A buzzer sounds and the emergency flashers flash to indicate that the doors have
been locked/unlocked. (Locked: Once; Unlocked: Twice)
When the door cannot be locked by the lock sensor on the upper part of the door
■
handle
1-3. Opening, closing and locking the doors
When locking or unlocking
the doors
The system can be operated
when the electronic key is
within about 2.3 ft. (0.7 m) of
an outside door handle. (Only
the doors detecting the key
can be operated.)
When starting the hybrid
system
"POWER" switch modes
(→P. 177)
The system can be operated
when the electronic key is
inside the vehicle.
Touch both lock sensors on the upper and
lower part of the door handle simultaneously.
or changing
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