Lexus UX 250h 2020 Owner's Manual page 254

252
4-5. Using the driving support systems
Situations in which the Parking Support
■
Brake function (static objects) may not
operate
When driving with the shift lever in N
Intuitive parking assist buzzer
■
Regardless of whether the intuitive parking
assist function is enabled or not (P.234),
if the Parking Support Brake function (static
objects) is enabled (P.245), the front or
rear sensors detect an object and hybrid
system output restriction control or brake
control is performed, the intuitive parking
assist buzzer will sound to notify the driver
of the approximate distance to the object.
Situations in which the Parking Support
■
Brake function (static objects) may
operate even if there is no possibility of a
collision
In some situations, such as the following, the
Parking Support Brake function (static
objects) may operate even though there is
no possibility of a collision.
● Vehicle surroundings
• When driving on a narrow road
• When driving on a gravel road or in an
area with tall grass
• When driving toward a banner, flag, low-
hanging branch or boom barrier (such as
those used at railroad crossings, toll gates
and parking lots)
• When driving on a narrow path sur-
rounded by a structure, such as in a tun-
nel or on an iron bridge
• When parallel parking
• When there is a rut or hole in the surface
of the road
• When driving on a metal cover (grating),
such as those used for drainage ditches
• When driving on a steep slope
• If a sensor is hit by a large amount of
water, such as when driving on a flooded
road
• When strong winds are blowing
Weather
●
• If a sensor is covered with ice, snow, dirt,
etc. (when cleared, the system will return
to normal)
• If heavy rain or water strikes a sensor
• When driving in inclement weather such
as fog, snow or a sandstorm
Other ultrasonic wave sources
●
• When vehicle horns, vehicle detectors,
motorcycle engines, air brakes of large
vehicles, the clearance sonar of other
vehicles or other devices which produce
ultrasonic waves are near the vehicle
• If a sticker or an electronic component,
such as a backlit license plate (especially
fluorescent type), fog lights, fender pole
or wireless antenna is installed near a
sensor
● Changes in the vehicle posture
• If the vehicle is significantly tilted
• If the front of the vehicle is raised or low-
ered due to the carried load
• If the orientation of a sensor has been
changed due to a collision or other
impact
Situations in which the Parking Support
■
Brake function (static objects) may not
operate properly
In some situations, such as the following, this
function may not operate properly.
● Weather
• When a sensor or the area around a sen-
sor is extremely hot or cold