2023 TOYOTA C-HR sensor

3444-3. Operating the lights and wipers
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Washer/wiper dual oper-
ation
Pulling the lever operates the wip-
ers and washer.
Wipers will automatically operate a
couple of times after the washer
squirts.
Vehicles with headlight cleaners:
When the headlights are on and
the lever is pulled and held, the
headlight cleaners will operate
once. After this, the headlight
cleaners will operate every 5th
time the lever is pulled.
■ The windshield wipers and washer can be operated when
The power switch is in ON mode.
■ Effects of vehicle speed on wiper operation
Even when the wipers are not in “AUTO” mode, wiper operation va ries
depending on vehicle speed when the washer is being used (delay until drip
prevention wiper sweep occurs).
■ Raindrop sensor
● If the wiper switch is turned to the “AUTO” position while the power switch is
in ON mode, the wipers will operate once to show that “AUTO” mo de is acti-
vated.
● If the temperature of the raindrop sensor is 90C (194F) or higher, or -15C
(5 F) or lower, automatic operation may not occur. In this case, operate the
wipers in any mode other than “AUTO”.
■ If no windshield washer fluid sprays
Check that the washer nozzles are not blocked, or if there is w asher fluid in
the windshield washer fluid reservoir.
● The raindrop sensor judges the amount
of raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently
strikes the windshield, or if bugs, etc.,
are present on the windshield.

3454-3. Operating the lights and wipers
4
Driving
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WARNING
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshie ld becomes
warm. The fluid may freeze on the windshield and cause low visi bility. This
may lead to an accident, resulting in death or serious injury.
■ Caution regarding the use of windshield wipers in “AUTO” mode
The windshield wipers may operate unexpectedly if the sensor is touched or
the windshield is subject to vibration in “AUTO” mode. Take car e that your
fingers, etc., do not become caught in the windshield wipers.
NOTICE
■ When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■ When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is p ulled
toward you and held continually.
■ When a nozzle becomes blocked
In this case, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Do not try to clear it with a pin or other object. The nozzle w ill be damaged.

3544-5. Using the driving support systems
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Two types of sensors, located behind the front grille and windshield,
detect information necessary to operate the drive assist system s.
Radar sensor
Front camera
Sensors
WARNING
■ To avoid malfunction of the radar sensor
Observe the following precautions.
Otherwise, the radar sensor may not operate properly, possibly leading to
an accident resulting in death or serious injury.
● Keep the radar sensor and the radar sensor cover clean at all times.
Radar sensor
Radar sensor cover
If the front of the radar sensor or the
front or back of the radar sensor cover
is dirty or covered with water droplets,
snow, etc., clean it.
Clean the radar sensor and radar sen-
sor cover with a soft cloth to avoid
damaging them.

3554-5. Using the driving support systems
4
Driving
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WARNING
●Do not attach accessories, stickers (including transparent stickers) or
other items to the radar sensor , radar sensor cover or surrounding area.
● Do not subject the radar sensor or its surrounding area to a strong impact.
If the radar sensor, front grille, or front bumper has been sub jected to a
strong impact, have the vehicle inspected by any authorized Toy ota
retailer or Toyota authorized repairer, or any reliable repaire r.
● Do not disassemble the radar sensor.
● Do not modify or paint the radar sensor or radar sensor cover.
● In the following cases, the radar sensor must be recalibrated. Contact any
authorized Toyota retailer or Toyota authorized repairer, or an y reliable
repairer for details.
• When the radar sensor or front grille are removed and installe d, or
replaced
• When the front bumper is replaced
■ To avoid malfunction of the front camera
Observe the following precautions.
Otherwise, the front camera may not operate properly, possibly leading to
an accident resulting in death or serious injury.
● Keep the windshield clean at all times.
• If the windshield is dirty or covered with an oily film, water droplets,
snow, etc., clean the windshield.
• If a glass coating agent is applied to the windshield, it will still be neces-
sary to use the windshield wipers to remove water droplets, etc ., from
the area of the windshield in front of the front camera.
• If the inner side of the windshield where the front camera is installed is
dirty, contact any authorized Toyota retailer or Toyota authori zed
repairer, or any reliable repairer.
B: Approximately 20 cm (7.9 in.) (Approximately 10 cm (4.0 in.) to the
right and left from the center of the front camera)
● Do not attach objects, such as stickers,
transparent stickers, etc., to the outer
side of the windshield in front of the
front camera (shaded area in the illus-
tration).
A: From the top of the windshield to
approximately 1 cm (0.4 in.) below
the bottom of the front camera

3664-5. Using the driving support systems
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● In the following situations, if the situation has changed (or the vehicle has
been driven for some time) and the normal operating conditions are
detected, the message will disappear and the system will become opera-
tional.
If the message does not disappear, contact any authorized Toyot a retailer or
Toyota authorized repairer, or any reliable repairer.
• When the temperature around the radar sensor is outside of the opera-
tional range, such as when the vehicle is in the sun or in an e xtremely
cold environment
• When the front camera cannot detect objects in front of the ve hicle, such
as when driving in the dark, snow, or fog, or when bright light s are shining
into the front camera
• Depending on the conditions in the vicinity of the vehicle, th e radar may
judge the surrounding environment can not be properly recognize d. In
that case, “Pre-Collision System Unavailable See owner’s manual .” is
displayed.

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4-5. Using the driving support systems
Driving
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PCS (Pre-Collision System)
: If equipped
The pre-collision system uses a radar sensor and front camera
to detect objects ( P. 368) in front of the vehicle. When the sys-
tem determines that the possibility of a frontal collision with an
object is high, a warning operates to urge the driver to take e va-
sive action and the potential brake pressure is increased to he lp
the driver avoid the collision. If the system determines that t he
possibility of a frontal collision with an object is extremely high,
the brakes are automatically applied to help avoid the collisio n
or help reduce the impact of the collision.
The pre-collision system can be disabled/enabled and the warnin g
timing can be changed. ( P. 373)

3734-5. Using the driving support systems
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Driving
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■Enabling/disabling the pre-collision system
The pre-collision system can be enabled/disabled on (P. 785)
of the multi-information display.
The system is automatically enabled each time the power switch is
turned to ON mode.
If the system is disabled, the
PCS warning light will turn on
and a message will be dis-
played on the multi-information
display.
WARNING
● When the tires are very worn
● When tires of a size other than specified are installed
● When tire chains are installed
● When a compact spare tire or an emergency tire puncture repair kit is used
● If equipment (snow plow, etc.) that may obstruct the radar sensor or front
camera is temporarily installed to the vehicle
Changing settings of the pre-collision system

3814-5. Using the driving support systems
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Driving
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■ Situations in which the system may not operate properly
● In some situations such as the following, an object may not be detected by
the radar sensor and front camera, preventing the system from o perating
properly:
• When a detectable object is approaching your vehicle
• When your vehicle or a detectable object is wobbling
• If a detectable object makes an abrupt maneuver (such as sudde n swerv-
ing, acceleration or deceleration)
• When your vehicle approaches a detectable object rapidly
• When a detectable object is near a wall, fence, guardrail, man hole cover,
vehicle, steel plate on the road, etc.
• When a detectable object is under a structure
• When part of a detectable object is hidden by an object, such as large
baggage, an umbrella, or guardrail
• When there are many things which can reflect the radio waves o f the
radar in the vicinity (tunnels, truss bridges, gravel roads, sn ow covered
road that have tracks, etc.)
• When there is an effect on the radio waves to the radar that i s installed on
another vehicle
• When multiple detectable objects are close together
• If the sun or other light is shining directly on a detectable object
• When a detectable object is a shade of white and looks extreme ly bright
• When a detectable object appears to be nearly the same color o r bright-
ness as its surroundings
• If a detectable object cuts or suddenly emerges in front of yo ur vehicle
• When the front of your vehicle is hit by water, snow, dust, et c.
• When a very bright light ahead, such as the sun or the headlig hts of
oncoming traffic, shines dir ectly into the front camera
• When approaching the side or front of a vehicle ahead
• If a vehicle ahead is a motorcycle
• If a vehicle ahead is narrow, such as a personal mobility vehi cle
• If a preceding vehicle has a small rear end, such as an unload ed truck
• When a detectable object is not
directly in front of your vehicle