2021 TOYOTA C-HR sensor

2084-3. Operating the lights and wipers
C-HR_OM_USA_OM10684U■
Battery-saving function
In the following conditions, the headlights and the other remai ning lights will
go off automatically after 20 minutes in order to prevent the v ehicle battery
from being discharged:
● The headlights and/or tail lights are on.
● Vehicles without a smart key system: The engine switch is turne d to the
“ACC” position or turned off.
Vehicles with a smart key system: The engine switch is turned t o ACCES-
SORY mode or turned off.
● The light switch is in or .
This function will be canceled in any of the following situatio ns:
● Vehicles without a smart key system: The engine switch is turne d to the
“ON” position.
Vehicles with a smart key system: The engine switch is turned t o IGNITION
ON.
● When the light switch is operated.
● When the door is opened or closed.
■ If “Headlight System Malfunction. Visit Your Dealer.” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: P. 507)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engin e is not
running.

2134-3. Operating the lights and wipers
4
Driving
C-HR_OM_USA_OM10684U■
Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the engine switch off while the following conditions are m et.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the engine switch to ON mode.
Within 30 seconds after , repeat pulling the headlight switch lever to the
original position then pushing it to the high beam position qui ckly 10 times,
then leave the lever in high beam position.
If the sensitivity is changed, the Automatic High Beam indicato r is turn on
and off 3 times.
Automatic High Beam (headlights) may turn on even the vehicle i s stopped.
■ If “Headlight System Malfunction. Visit Your Dealer.” is displayed on the
multi-information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
1
2
32
4

2254-5. Using the driving support systems
4
Driving
C-HR_OM_USA_OM10684U
Two types of sensors, located behind the front grille and winds hield,
detect information necessary to operate the drive assist systems.
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.

2264-5. Using the driving support systems
C-HR_OM_USA_OM10684U
WARNING
●Do not attach accessories, stickers (including transparent stic kers) or
other items to the radar sensor, radar sensor cover or surround ing area.
● Do not subject the radar sensor or its surrounding area to a st rong impact.
If the radar sensor, front grille, or front bumper has been sub jected to a
strong impact, have the vehicle inspected by your Toyota dealer .
● 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 your
Toyota dealer for details.
• When the radar sensor or front grille are removed and installed, 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 your Toyota dealer.
B: Approximately 7.9 in. (20 cm) (Approximately 4.0 in. (10 cm) 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 0.4 in. (1 cm) below
the bottom of the front camera

2304-5. Using the driving support systems
C-HR_OM_USA_OM10684U●
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 your Toyota dealer. • 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 lights 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.

2314-5. Using the driving support systems
4
Driving
C-HR_OM_USA_OM10684U
PCS (Pre-Collision System)
The system can detect the following (The detectable objects differs
depending on the function.):
● Vehicles
● Bicyclists
● Pedestrians
The pre-collision system uses a radar sensor and front camera
to detect objects ( P. 231) 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 impa ct of the collision.
The pre-collision system can b e disabled/enabled and the warnin g
timing can be changed. ( P. 2 3 6 )
Detectable objects

2424-5. Using the driving support systems
C-HR_OM_USA_OM10684U• When driving through steam or smoke
• When driving near an object that reflects radio waves, such as
a large
truck or guardrail
• When driving near a TV tower, broadcasting station, electric power plant,
radar equipped vehicles, etc., or other location where strong r adio waves
or electrical noise may be present
• When there are many things which can reflect the radio waves of the
radar in the vicinity (tunnels, truss bridges, gravel roads, sn ow covered
road that have tracks, etc.)
• While making a right/left turn, when an oncoming vehicle or a crossing
pedestrian has already exited the path of your vehicle
• While making a right/left turn, closely in front of an oncomin g vehicle or a
crossing pedestrian
• While making a right/left turn, when an oncoming vehicle or a crossing
pedestrian stops before entering the path of your vehicle
• While steering into the direction of oncoming traffic
■ Situations in which the syst em 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 operating
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, manhole cover, vehicle, steel plate on the road, etc.
• While making a right/left turn, when
an oncoming vehicle turns right/left in
front of your vehicle
• When a detectable object is not directly in front of your vehicle

2444-5. Using the driving support systems
C-HR_OM_USA_OM10684U• If a pedestrian/bicyclist is wearing oversized clothing (a rai
n coat, long
skirt, etc.), making their silhouette obscure
• If a pedestrian is bending forward or squatting or bicyclist i s bending for-
ward
• If a pedestrian/bicyclist is moving fast
• If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
• When driving in inclement weather such as heavy rain, fog, snow or a sandstorm
• When driving through steam or smoke
• When the surrounding area is dim, such as at dawn or dusk, or while at
night or in a tunnel, making a detectable object appear to be n early the
same color as its surroundings
• When driving in a place where the surrounding brightness changes sud- denly, such as at the entrance or exit of a tunnel
• After the engine has started the vehicle has not been driven for a certain amount of time
• While making a left/right turn and for a few seconds after mak ing a left/
right turn
• While driving on a curve and for a few seconds after driving o n a curve
• If your vehicle is skidding
• If the wheels are misaligned
• If a wiper blade is blocking the front camera
• The vehicle is being driven at extremely high speeds
• When driving on a hill
• If the radar sensor or front camera is misaligned
• When driving in a traffic lane separated by more than one lane where
oncoming vehicles are driving while making a right/left turn
• If the front of the vehicle is raised or
lowered
• When largely out of place with the opposite facing targeted oncoming
vehicle during a right/left turn