Lexus LS460 2011 Owner's Manual page 333

When the pre-support function is not in use
STEP 1
Move your vehicle slowly to a position parallel to the road or
shoulder approximately 1 m (3 ft.) away from parked vehicles.
To facilitate the setting of the target parking position, the front side
sensors detect the vehicles parked in front of and behind the parking
space and identify the target parking position.
STEP 2
Stop your vehicle in a position where you can see the front edge of
the leading parked vehicle right beside you, with the steering
wheel straight.
If there is no leading parked vehicle, the system will display the
target parking position (green or red frame) in the position used
last time the parallel parking assist mode was activated.
LS460_EE
2-4. Using other driving systems
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