2023 TOYOTA C-HR rain sensor

4634-5. Using the driving support systems
4
Driving
C-HR_HEV_OM_Europe_OM10764E
■ Situations in which the system may operate even if there is no possibil-
ity of a collision
In some situations, such as the following, the system may opera te even
though there is no possibility of a collision.
● When driving toward a banner, flag, low-hanging branch or boom barrier
(such as those used at railroad crossings, toll gates and parki ng lots)
● 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 up or down a steep slope
● If a sensor is hit by a large amount of water, such as when driving on a
flooded road
● There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors
will resolve this problem.)
● A sensor is coated with a sheet of spray or heavy rain
● When driving in inclement weather such as fog, snow or a sandstorm
● 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 the front of the vehicle is raised or lowered due to the carried load
● If the orientation of a sensor has been changed due to a collision or other
impact
● When driving on a narrow road
●When strong winds are blowing

4724-5. Using the driving support systems
C-HR_HEV_OM_Europe_OM10764E
■ Situations in which the system may not operate properly
The RCTA function may not detect vehicles correctly in the foll owing situa-
tions:
● When the sensor is misaligned due to a strong impact to the sensor or its
surrounding area
● When mud, snow, ice, a sticker, etc., is covering the sensor or surrounding
area on the position above the rear bumper
● When driving on a road surface that is wet with standing water during bad
weather, such as heavy rain, snow, or fog
● When multiple vehicles are approaching with only a small gap between
each vehicle
● When a vehicle is approaching at high speed
● When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicy cle carrier, or
snow plow
● When towing a trailer
● When there is a significant difference in height between your vehicle and the
vehicle that enters the detection area
● When a sensor or the area around a sensor is extremely hot or cold
● If the suspension has been modified or tires of a size other than specified
are installed
● When backing up on a slope with a
sharp change in grade
● When backing out of a sharp angle park-
ing spot

4744-5. Using the driving support systems
C-HR_HEV_OM_Europe_OM10764E
● When there are spinning objects near your vehicle such as the fan of an air
conditioning unit
● When water is splashed or sprayed toward the rear bumper, such as from a
sprinkler
● Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain
water on the road surface, etc.)
● When the distance between your vehicle and a guardrail, wall, etc., that
enters the detection area is short
● Gratings and gutters
● When a sensor or the area around a sensor is extremely hot or cold
● If the suspension has been modified or tires of a size other than specified
are installed
● If the front of the vehicle is raised or lowered due to the carried load
● When a vehicle passes by the side of
your vehicle
● When a detected vehicle turns while
approaching the vehicle

5284-5. Using the driving support systems
C-HR_HEV_OM_Europe_OM10764E
WARNING
●In the following situations, the sensors may not operate normally and may
lead to an accident. Drive carefully.
• Obstacles cannot be detected in the side areas until a scan of the side
areas is completed. ( P. 461)
• Even after the scan of the side areas is completed, obstacles such as
other vehicles, people or animals that approach from the sides cannot
be detected.
• The sensor is frozen (if it thaws, the system returns to norma l).
A warning message may display at particularly low temperatures due to
the sensor freezing and it may not detect parked vehicles.
• The sensor is blocked by someone’s hand.
• The vehicle is tilted a large amount.
• The temperature is extremely hot or cold.
• The vehicle is driven on undulating roads, slopes, gravel road s, in areas
with tall grass, etc.
• An ultrasonic wave source is nearby, such as the horn or senso rs of
another vehicle, a motorcycle engine or the air brake of a larg e vehicle.
• Heavy rain or a water strikes the vehicle.
• The angle of the sensor may be deviated when assist control st arts
even if there is a parked vehicle in the target parking spot. H ave the
vehicle inspected at any authorized Toyota retailer or Toyota a uthorized
repairer, or any reliable repairer.
• Do not install any accessories within the sensor detection ran ge.

5816-1. Maintenance and care
6
Maintenance and care
C-HR_HEV_OM_Europe_OM10764E
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doi ng so may
cause the electrical components, etc., to catch fire.
■ When cleaning the windshield
● When a wet rag or similar is held close to the raindrop sensor
● If something bumps against the windshield
● If you directly touch the raindrop sensor body or if something bumps into
the raindrop sensor
■ Precautions regarding the exhaust pipe
Exhaust gasses cause the exhaust pipe to become quite hot.
When washing the vehicle, be careful not to touch the exhaust p ipe until it
has cooled sufficiently, as touching a hot exhaust pipe can cau se burns.
■ Precaution regarding the rear bumper with Blind Spot Monitor (if
equipped)
If the paint of the rear bumper is chipped or scratched, the sy stem may mal-
function. If this occurs, consult any authorized Toyota retaile r or Toyota
authorized repairer, or any reliable repairer.
Set the wiper switch to off.
If the wiper switch is in “AUTO”, the wip-
ers may operate unexpectedly in the fol-
lowing situations, and may result in
hands being caught or other serious inju-
ries and cause damage to the wiper
blades.
● When the upper part of the windshield
where the raindrop sensor is located is
touched by hand
Off

799Alphabetical index
C-HR_HEV_OM_Europe_OM10764E
Back door ................................. 199
Back-up lights
Replacing light bulbs ..... 658, 664
Wattage................................. 776
Battery (12-volt battery)
Battery checking ........... 604, 610
If the 12-volt battery is
discharged .......................... 747
Preparing and
checking before winter........ 541
Replacing .............................. 751
Warning light ......................... 679
Battery (traction battery) ......... 122
Blind Spot Monitor (BSM) ....... 435
Bluetooth®*
Bottle holders........................... 562
Brake
Fluid ...................................... 773
Parking brake ........................ 323
Regenerative braking ............ 119
Warning light ......................... 679
Brake assist.............................. 530
Brake Hold ................................ 328
Brake Override System ........... 284
Break-in tips ............................. 285
Brightness control
Instrument cluster light
control................................. 171
BSM (Blind Spot Monitor) ....... 435
Care
Aluminum wheels.................. 579
Camera sensor ..................... 355
Exterior ................................. 578
Interior................................... 584
Radar sensor ........................ 354
Seat belts .............................. 585
Cargo hooks............................. 564
Catch protection function ....... 276
Chains....................................... 543
Child restraint system ............... 59
Fixed with a seat belt .............. 90
Fixed with an
ISOFIX lower anchorage ...... 92
Points to remember ................ 60
Riding with children................. 58
Types of child restraint system
installation method ............... 89
Using a
top tether anchorage ............ 94
Child safety ................................ 58
12-volt battery precautions ... 607
Airbag precautions .................. 44
Child restraint system ............. 59
How your child should
wear the seat belt ................. 38
Installing child restraints ......... 89
Power window lock switch .... 275
Power window precautions ... 279
Rear door child-protectors .... 195
Removed key battery
precautions......................... 645
Seat belt precautions .............. 91
Seat heater precautions........ 555
BC
*: For vehicles with navigation/multimedia system, refer to
“Navigation and multimedia system Owner’s manual” or
“Multimedia owner’s manual”.

808Alphabetical index
C-HR_HEV_OM_Europe_OM10764E
S-IPA ......................................... 490
S-IPA (Simple Intelligent
Parking Assist System) ........ 490
Seat belts .................................... 36
Adjusting the seat belt............. 37
Child restraint system
installation............................. 59
Cleaning and maintaining
the seat belt ........................ 585
Emergency Locking
Retractor............................... 38
How to wear your seat belt ..... 34
How your child should wear
the seat belt .......................... 38
Pregnant women,
proper seat belt use .............. 39
Reminder light and buzzer .... 683
Seat belt pretensioners ........... 37
SRS warning light ................. 680
Seat heaters ............................. 555
Seats
Adjustment ............................ 260
Adjustment precautions ........ 261
Child seats/child restraint
system installation ................ 59
Cleaning ................................ 584
Front seats ............................ 260
Head restraint ....................... 264
Properly sitting in the seat....... 34
Rear seats............................. 262
Seat heaters.......................... 555
Sensor
Automatic headlight
system .................................. 334
Camera sensor ..................... 354
Inside rear view mirror .......... 271
Intrusion sensor .................... 150
LTA (Lane Tracing Assist) .... 385
Radar sensor ........................ 354
Rain-sensing
windshield wipers ............... 344
Toyota parking
assist-sensor ...................... 454
Shift lever ................................. 313
If the shift lever cannot be
shifted from P ..................... 315
Hybrid transmission .............. 313
Shift lock system ..................... 314
Side airbags ............................... 41
Side doors ................................ 191
Side mirrors ............................. 272
Adjustment ............................ 272
Blind Spot Monitor ................ 435
Folding .................................. 273
Heaters ................................. 550
Side turn signal lights
Replacing light bulbs............. 661
Turn signal lever ................... 322
Wattage ................................ 776
Smart entry & start system ..... 205
Antenna location ................... 205
Entry functions .............. 191, 199
Starting the hybrid system .... 303
Snow tires ................................ 541
Spare tire
Inflation pressure .................. 774
Storage location .................... 728
S