Toyota PRIUS 2023 Manual page 251

rounding conditions
● In the following situations, system
operation may be canceled:
• When the brake control or output
restriction control of a driving sup-
port system operates (For exam-
ple: PCS, drive-start control)
• When the system determines that
a detected object has moved
away from the vehicle
• When lane lines can no longer be
detected
• When the brake pedal has been
depressed
• When the accelerator pedal has
been depressed
• When the steering wheel has
been operated with more than a
certain amount of force
• When the turn signal lever is oper-
ated to the left/right turn position
WARNING
■ Situations in which the sys-
tem may not operate properly
● Situations in which the lane may
not be detected: P.221
● When a detectable object stops
immediately before entering the
path of the vehicle
● When passing extremely close
to a detectable object behind a
guardrail, fence, etc.
● When changing lanes while
overtaking a detectable object
● When passing a detectable
object that is changing lanes or
turning left/right
● When there are objects (guard-
rails, power poles, trees, walls,
fences, poles, traffic cones,
mailboxes, etc.) in the surround-
ing area
● When there are patterns or a
painting ahead of the vehicle
that may be mistaken for a
detectable object
4-5. Using the driving support systems
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When passing through a place
with a low structure above the
road (tunnel with a low ceiling,
traffic sign, signboard, etc.)
When driving on snowy, icy, or
rutted roads
When a detectable object is
approaching your vehicle
When your vehicle or a detect-
able object is wandering
When the movement of a
detectable object changes
(change in direction, sudden
acceleration or deceleration,
etc.)
When suddenly approaching a
detectable object
When a preceding vehicle or
motorcycle is not directly in front
of your vehicle
When there is a structure above
a detectable object
When part of a detectable
object is hidden by another
object (large luggage, umbrella,
guardrail, etc.)
When multiple detectable
objects are overlapping
When a bright light, such as the
sun or headlights of another
vehicle, is reflecting off of the
detectable object
When the detectable object is
white and looks extremely bright
When the color or brightness of
the detectable object causes it
to blend in with its surroundings
When a detectable object cuts
in front of or emerges from
beside a vehicle
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