Lexus LS460 2011 Owner's Manual page 360

2-4. Using other driving systems
NOTICE

When the vehicle in front of the empty space is parked on the shoulder or
is not parallel with the road, parallel parking assist mode cannot be used.

If the parked vehicle is narrow, or parked close to the shoulder, the
assisted parking position may be quite close to the shoulder. If the vehicle
seems likely to hit or mount the shoulder, depress the brake pedal to stop
the vehicle, and disable the system by touching "X".

When using the parking assist mode (perpendicular parking)

Always check that there are no obstacles in the green frame or between
your vehicle and the parking space, and that the warning flag does not
overlap any parked vehicles or walls.

If there are obstacles in the green frame or between your vehicle and the
parking space, or the warning flag overlaps a parked vehicle or wall, there
is a danger of collision. In this case, do not use the parking assist mode.

The warning flag is only a guide. Be sure to directly check your surround-
ings and behind the vehicle for safety, and back up carefully.

If the road surface has level variations or a gradient between the starting
position and target parking position, it will not be possible to correctly set
the location, which may cause the parking position to be misaligned or
crooked. In this case, do not use the parking assist mode.

If the red area which denotes an area unsuitable for parking overlaps with
the lines of the parking space, you will be unable to park, as the parking
space is judged as being an area unsuitable for parking. Progress to a posi-
tion where the parking space lines do not overlap with such an area.
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