274
4-5. Using the driving support systems
displayed or the sensor may not be able to
detect an object. Once the ice melts, the
system will return to normal.
Q If “Parking Assist Unavailable” is dis-
played on the multi-information display
O Water may be continuously flowing over
the sensor surface, such as in a heavy
rain. When the system determines that it
is normal, the system will return to nor-
mal.
O Initialization may not have been per-
formed after a 12-volt battery terminal
was disconnected and reconnected. Ini-
tialize the system. (P.274)
If this message continues to be displayed
even after initialization, have the vehicle
inspected by any authorized Lexus
retailer or Lexus authorized repairer, or
any reliable repairer.
Q If a 12-volt battery terminal has been
disconnected and reconnected
The system needs to be initialized. To initial-
ize the system, drive the vehicle straight
ahead for 5 seconds or more at a speed of
approximately 35 km/h (22 mph) or more.
Additionally, for vehicles with the Parking
Support Brake function, turn the steering
wheel fully to the left and right with the vehi-
cle stopped.
Q Sensor detection information
O The sensor’s detection areas are limited
to the areas around the vehicle’s front
and rear bumpers.
O The following situations may occur
during use.
• Depending on the shape of the object
and other factors, the detection distance
may shorten, or detection may be impos-
sible.
• There will be a short delay between
object detection and display. Even at low
speeds, there is a possibility that the
object will come within the sensor’s
detection areas before the display is
shown and the warning beep sounds.
• It might be difficult to hear the buzzer due
to the volume of the audio system or air
flow noise of the air conditioning system.
• It may be difficult to hear the buzzer if
buzzers for other systems are sounding.
Q Objects which the system may not prop-
erly detect
The shape of the object may prevent the
sensor from detecting it. Pay particular
attention to the following objects:
O Wires, fences, ropes, etc.
O Cotton, snow and other materials that
absorb sound waves
O Sharply-angled objects
O Low objects
O Tall objects with upper sections project-
ing outwards in the direction of your vehi-
cle
People may not be detected if they are
wearing certain types of clothing.
Q Situations in which the system may not
operate properly
Certain vehicle conditions and the sur-
rounding environment may affect the ability
of a sensor to correctly detect objects. Par-
ticular instances where this may occur are
listed below.
O There is dirt, snow or ice on a sensor.
(Cleaning the sensors will resolve this
problem.)
O A sensor is frozen. (Thawing the area will
resolve this problem.)
In especially cold weather, if a sensor is
frozen the sensor display may be dis-
played abnormally, or objects, such as a
wall, may not be detected.
O When a sensor or the area around a sen-
sor is extremely hot or cold.
O On an extremely bumpy road, on an
incline, on gravel, or on grass.
O When vehicle horns, vehicle detectors,
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