sensor TOYOTA C-HR 2019 (in English) Service Manual

2694-5. Using the driving support systems
4
Driving
C-HR_OM_USA_OM10569U
WARNING
■Handling the radar sensor
One Blind Spot Monitor sensor is installed inside the left and right side of
the vehicle rear bumper respectively. Observe the following to ensure the
Blind Spot Monitor can function correctly.
If the warning message does not disappear, have the vehicle inspected
by your Toyota dealer.
● Do not subject a sensor or its surrounding area on the rear bum per to a
strong impact.
If a sensor is moved even slightly off position, the system may malfunction
and vehicles may not be detected correctly.
In the following situations, have your vehicle inspected by your Toyota
dealer.
• A sensor or its surrounding area is subject to a strong impact .
• If the surrounding area of a sensor is scratched or dented, or part of
them has become disconnected.
● Do not disassemble the sensor.
● Do not attach accessories or stickers to the sensor or surround ing area on
the bumper.
● Do not modify the sensor or surrounding area on the bumper.
● Do not paint the rear bumper any color other than an official Toyota color.
●Keep the sensor and its surrounding
area on the bumper clean at all times.
If a sensor or its surrounding area on
the rear bumper is dirty or covered
with snow, the Blind Spot Monitor may
not operate and a warning message
( P. 267) will be displayed.
In this situation, clear off the dirt or
snow and drive the vehicle with the
operation conditions of the BSM func-
tion ( P. 272) satisfied for approxi-
mately 10 minutes.

2704-5. Using the driving support systems
C-HR_OM_USA_OM10569U
The BSM function uses radar sensors to detect the following veh icles
traveling in adjacent lanes and ad vises the driver of the presence of
such vehicles via the indicators on the out side rear view mirrors.
Vehicles that are traveling in areas that are not visible using the out-
side rear view mirrors (the blind spots)
Vehicles that are approaching rapidly from behind in areas that are
not visible using the outside re ar view mirrors (the blind spots)
BSM function

2734-5. Using the driving support systems
4
Driving
C-HR_OM_USA_OM10569U■
Conditions under which the BSM function may not function correc tly
● The BSM function may not detect vehicles correctly in the follo wing situa-
tions:
• When the sensor is misaligned due to a strong impact to the se nsor or its
surrounding area
• When mud, snow, ice, a sticker, etc., is covering the sensor o r surround-
ing area on 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 b etween
each vehicle
• When the distance between your vehicle and a following vehicle is short
• When there is a significant difference in speed between your v ehicle and
the vehicle that enters the detection area
• Vehicles which are being overtaken rapidly by your vehicle.
• When the difference in speed between your vehicle and another vehicle
is changing
• When a vehicle enters a detection area traveling at about the same
speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the d etection area
• When driving up and down consecutive steep inclines, such as hills, dips
in the road, etc.
• When driving on roads with sharp bends, consecutive curves, or uneven
surfaces
• When vehicle lanes are wide, or when driving on the edge of a lane, and
the vehicle in an adjacent lane is far away from your vehicle
• When a bicycle carrier or other accessory is installed to the rear of the vehicle
• When there is a significant difference in height between your vehicle and
the vehicle that enters the detection area
• Immediately after BSM system is set to on

2744-5. Using the driving support systems
C-HR_OM_USA_OM10569U●
Instances of the BSM function unnecessarily detecting a vehicle and/or
object may increase in the following situations:
• When the sensor is misaligned due to a strong impact to the se nsor or its
surrounding area
• When the distance between your vehicle and a guardrail, wall, etc., that enters the detection area is short
• When driving up and down consecutive steep inclines, such as h ills, dips
in the road, etc.
• When vehicle lanes are narrow, or when driving on the edge of a lane, and a vehicle traveling in a lane other than the adjacent lanes enters the
detection area
• When driving on roads with sharp bends, consecutive curves, or uneven
surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is short
• When a bicycle carrier or other accessory is installed to the rear of the
vehicle

2754-5. Using the driving support systems
4
Driving
C-HR_OM_USA_OM10569U
The RCTA functions when your vehicle is in reverse. It can detect
other vehicles approaching from the right or left rear of the v ehicle. It
uses radar sensors to alert the driver of the other vehicle’s existence
through flashing the outside rear view mirror indicators and so unding
a buzzer.
RCTA function
Approaching vehicles Detection areas
WARNING
■Cautions regarding the use of the function
The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
The RCTA function is only a supplementary function which alerts the driver
that a vehicle is approaching from the right or left at the rea r of the vehicle.
As the RCTA function may not function correctly under certain c onditions,
the driver’s own visual confirmation of safety is necessary. Ov er reliance on
this function may lead to an accident resulting death or seriou s injury.

2774-5. Using the driving support systems
4
Driving
C-HR_OM_USA_OM10569U■
Conditions under which the RCTA function will not detect a vehicle
The RCTA function is not designed to detect the following types of vehicles
and/or objects:
● Vehicles approaching from directly behind
● Vehicles backing up in a parking space next to your vehicle
● Guardrails, walls, signs, parked vehicles and similar stationar y objects
*
●Small motorcycles, bicycles, pedestrians, etc.*
●Vehicles moving away from your vehicle
● Vehicles approaching from the parking spaces next to your vehic le
*
*
: Depending on the conditions, detection of a vehicle and/or obj ect may
occur.
■ Conditions under which the RCTA function may not function corre ctly
● The RCTA function may not detect vehicles correctly in the following situa-
tions:
• When the sensor is misaligned due to a strong impact to the se nsor or its
surrounding area
• When mud, snow, ice, a sticker, etc., is covering the sensor o r surround-
ing area on 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 b etween
each vehicle
• When a vehicle is approaching at high speed
●
Vehicles that the sensors cannot detect
due to obstructions

2784-5. Using the driving support systems
C-HR_OM_USA_OM10569U• Immediately after the RCTA function is set to on
• Immediately after the engine is started with the RCTA function
is set to on
• When backing up on a slope with a
sharp change in grade
• When backing out of a shallow angle parking spot
• When the sensors cannot detect a vehicle due to obstructions

3306-1. Maintenance and care
C-HR_OM_USA_OM10569U
WARNING
■When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may
cause the electrical components, etc., to catch fire.
■ When cleaning the windshield (veh icles with rain-sensing windshield
wiper)
● When the upper part of the windshield where the raindrop sensor is
located is touched by hand
● 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 (i f
equipped)
If the paint of the rear bumper is chipped or scratched, the sy stem may mal-
function.
If this occurs, consult your Toyota dealer.
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.
Off

4227-2. Steps to take in an emergency
C-HR_OM_USA_OM10569U
(Yellow)
Brake system warning lightIndicates a malfunction in the electric parking brake
 Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes or
illuminates)
PCS warning light
Indicates a malfunction in the PCS (Pre-Collision System)
or that the system is temporarily unavailable due to the
vehicle being extremely hot/cold, or dirt around a front
sensor, etc. ( P. 237, 430)
 Follow the instructions dis played on the multi-infor-
mation display. ( P. 237, 430)
If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
 P. 237
*2
(Flashes) (U.S.A.)
(Flashes) (Canada)
Parking brake indicator (warning buzzer) It is possible that the parking brake is not fully engaged or
released
 Operate the parking brake switch once again.
This light comes on when the parking brake is not
released. If the light turns off after the parking brake is ful ly
released, the system is operating normally.
Low fuel level warning light Indicates that remaining fuel is approximately 2.0 gal.
(7.5 L, 1.6 Imp.gal.) or less
 Refuel the vehicle.
Warning lightWarning light/Details/Actions

4257-2. Steps to take in an emergency
7
When trouble arises
C-HR_OM_USA_OM10569UFront passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert
the front
passenger that his or her seat belt is not fastened. The buzzer sounds
once if the vehicle reaches a speed of 12 mph (20 km/h). If the seat belt is
still unfastened after 24 seconds, the buzzer will sound interm ittently for 6
seconds. Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 90 more seconds.
Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert t he rear
passengers that his or her seat belt is not fastened. If the ve hicle reaches a
speed of 12 mph (20 km/h), the buzzer will sound intermittently for 6 sec-
onds. Then, if the seat belt is still unfastened, the buzzer wi ll sound in a dif-
ferent tone for 24 more seconds.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (front), side
impact sensors (rear), driver’s seat position sensor, driver’s seat belt buckle
switch, front passenger occupant classification system, “AIR BA G ON” indica-
tor light, “AIR BAG OFF” indicator light, front passenger’s sea t belt buckle
switch, seat belt pretensioners, airbags, interconnecting wirin g and power
sources. ( P. 32)
■ Electric power steering system wa rning light (warning buzzer)
When the battery charge becomes insufficient or the voltage tem porarily
drops, the electric power steering system warning light may com e on and the
warning buzzer may sound.
■ If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle imme-
diately. The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact your Toyota dealer.
■ Front passenger detection sensor, seat belt reminder and warnin g
buzzer
● If luggage is placed on the front passenger seat, the front pas senger detec-
tion sensor may cause the warning light to flash and the warnin g buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.