stop start TOYOTA C-HR 2023 Service Manual

5194-5. Using the driving support systems
4
Driving
C-HR_HEV_OM_Europe_OM10764E
“Narrow Space”
The S-IPA switch is operated when there is
not enough space to the front and rear of the
vehicle when departing fr om a parallel park-
ing spot.
 The vehicle cannot depart using assist
control as there is not enough space to
the front and rear of the vehicle. Con-
firm the safety of your surroundings
before departing.
“Unavailable”
The S-IPA switch is operated in an area
where there are no obstacles to the front of
the vehicle, or there are obstacles to the
sides and the vehicle cannot depart from the
parallel parking spot.
 Assist control cannot be used for
departure, as there are obstacles to the
sides of the vehicle or departure can
easily be performed manually. Confirm
the safety of your surroundings before
departing.
“Pressure Applied to Steer-
ing Wheel”
Assist control is started while the steering
wheel is held.
 Rest your hands on the steering wheel
without applying any force. Assist con-
trol will start.
“Stop the Vehicle”
The vehicle is moved and assist control is
started while the steering wheel is held.
 Stop the vehicle and follow the guid-
ance provided by the system to start
assist control.
MessageSituation/Handling method

5214-5. Using the driving support systems
4
Driving
C-HR_HEV_OM_Europe_OM10764E
■When the operation is suspended
MessageSituation/Handling method
“Steering Wheel Turned”
The driver holds the steering wheel during
assist control.
 Stop the vehicle and rest your hands on
the steering wheel without applying any
force. Then, press the S-IPA switch to
restart assist control.
“Excessive Speed”
The vehicle speed exceeds 7 km/h (4 mph)
during assist control.
 Stop the vehicle and rest your hands on
the steering wheel without applying any
force. Then, press the S-IPA switch to
restart assist control.
“Pressure Applied to Steer-
ing Wheel”
The S-IPA switch is pressed while assist con-
trol is temporarily stopped and the steering
wheel is firmly held.
 Rest your hands on the steering wheel
without applying any force. Then stop
the vehicle to restart assist control.
“Stop the Vehicle”
The S-IPA switch is pressed while assist con-
trol is temporarily stopped and the vehicle is
moving.
 Rest your hands on the steering wheel
without applying any force. Then stop
the vehicle to restart assist control.

5224-5. Using the driving support systems
C-HR_HEV_OM_Europe_OM10764E
■Sensors
Detect the vehicle to help determine the parking spot.
Front side sensors
Rear side sensors
“Resume”
Assist control is temporarily stopped (able to
be restarted)
 Stop the vehicle and rest your hands on
the steering wheel without applying any
force. Then press the S-IPA switch to
restart assist control.
“Too Close to Obstacle at
Front”
“Back Up”
The vehicle moved too close to an obstacle in
front of the vehicle.
 Press the S-IPA switch after changing
the shift lever to R to restart assist con-
trol.
“Too Close to Obstacle at
Rear”
“Go Forward”
The vehicle moved too close to an obstacle
to the rear of the vehicle.
 Press the S-IPA switch after changing
the shift lever to D to restart assist con-
trol.
MessageSituation/Handling method
Precautions during use

5334-5. Using the driving support systems
4
Driving
C-HR_HEV_OM_Europe_OM10764E
■Turning off both TRC, VSC and Trailer Sway Control systems
To turn the TRC, VSC and Trailer Sway Control systems off, pres s and hold
for more than 3 seconds while the vehicle is stopped.
The VSC off indicator will come on and the message will be show n on the
multi-information display.*
Press again to turn the system back on.
*: On vehicles with PCS (Pre-Collision System), PCS will also be disabled
(only Pre-Collision warning is a vailable). The PCS warning light will come
on and a message will be displayed on the multi-information dis play.
( P. 384)
■ When the message is displayed on the multi-information display show-
ing that TRC has been disable d even if has not been pressed
TRC is temporary deactivated. If the information continues to s how, contact
any authorized Toyota retailer or Toyota authorized repairer, o r any reliable
repairer.
■ Sounds and vibrations caused by the ABS, brake assist, VSC, Trailer
Sway Control, TRC and hill-st art assist control systems
● A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the hybrid system is started or j ust after the
vehicle begins to move. This sound does not indicate that a mal function has
occurred in any of these systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occur red.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a s top.
■ ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
● Operating sound heard from the engine compartment when the brake pedal
is operated.
● Motor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
● Operating sound heard from the engine compartment when one or two min-
utes passed after the stop of the hybrid system.

5344-5. Using the driving support systems
C-HR_HEV_OM_Europe_OM10764E
■ Active Cornering Assist operation sounds and vibrations
When the Active Cornering Assi st is operated, operation sounds and vibra-
tions may be generated from the brake system, but this is not a malfunction.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring so und) may be
heard. This does not indicate a malfunction.
■ Automatic reactivation of TRC, Trailer Sway Control and VSC systems
After turning the TRC, Trailer Sway Control and VSC systems off , the sys-
tems will be automatically re- enabled in the following situations:
● When the power switch is turned off
● If only the TRC system is turned off, the TRC will turn on when vehicle
speed increases
If both the TRC and VSC systems are turned off, automatic re-en abling will
not occur when vehicle speed increases.
■ Operating conditions of Active Cornering Assist
The system operates when the following occurs:
● TRC/VSC can operate
● The driver is attempting to accelerate while turning
● The system detects that the vehicle is drifting to the outer side
● The brake pedal is released
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the s ystem from
overheating when there is frequent steering input over an exten ded period of
time. The steering wheel may feel heavy as a result. Should thi s occur, refrain
from excessive steering input or stop the vehicle and turn the hybrid system
off. The EPS system should return to normal within 10 minutes.
■ Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assi st control will
operate:
● The shift lever is in a position other than P or N (when starting off forward/
backward on an upward incline)
● The vehicle is stopped
● The accelerator pedal is not depressed
● The parking brake is not engaged

5354-5. Using the driving support systems
4
Driving
C-HR_HEV_OM_Europe_OM10764E
■ Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the follo wing situations:
● The shift lever is shifted to P or N
● The accelerator pedal is depressed
● The parking brake is engaged
● 2 seconds at maximum elapsed after the brake pedal is released
WARNING
■The ABS does not operate effectively when
● The limits of tire gripping performance have been exceeded (such as
excessively worn tires on a snow covered road).
● The vehicle hydroplanes while driving at high speed on wet or slick roads.
■ Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping dista nce. Always
maintain a safe distance from the vehicle in front of you, espe cially in the
following situations:
● When driving on dirt, gravel or snow-covered roads
● When driving with tire chains
● When driving over bumps in the road
● When driving over roads with potholes or uneven surfaces
■ TRC/VSC may not operate effectively when
Directional control and power may not be achievable while drivi ng on slip-
pery road surfaces, even if the TRC/VSC system is operating.
Drive the vehicle carefully in conditions where stability and p ower may be
lost.
■ Active Cornering Assist does not operate effectively when
● Do not overly rely on Active Cornering Assist. Active Cornering A ss i st m a y
not operate effectively when accelerating down slopes or drivin g on slip-
pery road surfaces.
● When Active Cornering Assist frequently operates, Active Cornering
Assist may temporarily stop operating to ensure proper operatio n of the
brakes, TRC and VSC.

6416-3. Do-it-yourself maintenance
C-HR_HEV_OM_Europe_OM10764E
6
Maintenance and care
■Cleaning the air intake vent
● Dust in the air intake vent may interfere with the cooling of the hybrid battery
(traction battery). If charging/discharging of the hybrid batte ry (traction bat-
tery) becomes limited, the distance that the vehicle can be dri ven using the
electric motor (traction motor) may be reduced and the fuel eco nomy may
be reduced. Inspect and clean the air intake vent periodically.
● Improper handling of the air intake vent cover and filter may result in dam-
age to them. If you have any concerns about cleaning the filter , contact any
authorized Toyota retailer or Toyota authorized repairer, or an y reliable
repairer.
■ If “Maintenance required for Traction battery cooling parts See owner’s
manual.” is shown on the multi-information display
● If this message is shown on the multi-information display, remove the air
intake vent cover and clean the filter. ( P. 638)
● After cleaning the air intake vent, start the hybrid system and check that the
warning message is no longer displayed.
After the hybrid system is started, it may be necessary to driv e the vehicle
up to approximately 20 minutes before the warning message disap pears. If
the warning message does not disappear after driving for approp riately 20
minutes, have the vehicle inspected by any authorized Toyota re tailer or
Toyota authorized repairer, or any reliable repairer.
WARNING
■ When cleaning the air intake vent
● Before cleaning the air intake vent, make sure to turn the power switch off
to stop the hybrid system.
● Do not use water or other liquids to clean the air intake vent. If water is
applied to the hybrid battery (traction battery) or other compo nents, a mal-
function or fire may occur.
■ When removing the air intake vent cover
Do not touch the service plug located near the air intake vent. (P. 125)

667
7When trouble arises
C-HR_HEV_OM_Europe_OM10764E
7-1. Essential information
Emergency flashers ........... 668
If your vehicle has to be
stopped in
an emergency .................. 669
If the vehicle is submerged
or water on the road is
rising ................................ 670
7-2. Steps to
take in an emergency
If your vehicle needs to be
towed ............................... 672
If you think
something is wrong.......... 678
If a warning light turns on or
a warning buzzer
sounds ............................. 679
If a warning message is
displayed ......................... 690
If you have a flat tire
(vehicles with an
emergency tire puncture
repair kit).......................... 697
If you have a flat tire
(vehicles with a
spare tire) ........................ 727
If the hybrid system will not
start.................................. 742
If the electronic key does
not operate properly ........ 744
If the 12-volt battery is
discharged ....................... 747
If your vehicle overheats .... 755
If the vehicle becomes
stuck ................................ 760

6937-2. Steps to take in an emergency
C-HR_HEV_OM_Europe_OM10764E
7
When trouble arises
■If a message that indicates the need for referring to Owner’s Manual is
displayed
● If “Engine Coolant Temperature High.”is shown, follow the instructions
(P. 755).
● If the following messages are shown, there may be a malfunction. Immedi-
ately stop the vehicle in a safe place and contact any authoriz ed Toyota
retailer or Toyota authorized repairer, or any reliable repaire r. Continuing to
drive the vehicle may be dangerous.
• “Braking Power Low.”
• “Charging System Malfunction.”
• “Engine Oil Pressure Low.”
● If the following messages are shown, there may be a malfunction. Immedi-
ately have the vehicle inspected by any authorized Toyota retai ler or Toyota
authorized repairer, or any reliable repairer.
• “Hybrid System Malfunction.”
• “Check Engine.”
• “Hybrid Battery System Malfunction.”
• “Accelerator system Malfunction.”
• “Entry & Start System Malfunction.”
• “Exhaust filter full.” (P. 529)
• “Hybrid System Stopped”
• “Engine Stopped”
● If the “Low 12-Volt Battery.” is shown,
• When the display goes off after several seconds (displays for about 6
seconds):
Maintain the hybrid system operation for more than 15 minutes a nd
charge the 12-volt battery.
• When the display does not go off:
Start up the hybrid system using the procedures: P. 747
● If “Maintenance required for Traction battery cooling parts. See owner’s
manual.” is shown, the filters may be clogged, the air intake v ents may be
blocked, or there may be a gap i n the duct. Therefore, perform the following
correction procedure.
• If the air intake vents and filters of the hybrid battery (tra ction battery) are
dirty, perform the procedure on P. 638 to clean them.
• If the warning message is shown when the air intake vents and filters of
the hybrid battery (traction battery) are not dirty, have the v ehicle
inspected by any authorized Toyota retailer or Toyota authorize d repairer,
or any reliable repairer immediately.

6947-2. Steps to take in an emergency
C-HR_HEV_OM_Europe_OM10764E
■ If “Engine Oil Level Low. Add or Replace Oil.”is displayed
The engine oil level is low. Check the level of the engine oil, and add if neces-
sary.
This message may appear if the vehicle is stopped on a slope. M ove the
vehicle to a level surface and check to see if the message disa ppears.
■ If “Hybrid System Stopped. Steering Power Low.”is displayed
This message is displayed if the hybrid system is stopped while driving.
When steering wheel operations are heavier than usual, grip the steering
wheel firmly and operate it using more force than usual.
■ If “Hybrid System Overheated. Reduced Output Power.” is shown
This message may be shown when driving under severe operating c ondi-
tions. (For example, when driving up a long steep hill.)
Handling method: P. 755
■ If “Depress Brake When Vehicle is Stopped. Hybrid System may Over-
heat.” is shown
The message may be shown when the accelerator pedal is depresse d to hold
the vehicle while the vehicle is stopped on an uphill, etc.
The hybrid system may overheat. Release the accelerator pedal a nd depress
the brake pedal.
■ If “Traction battery needs to be protected. Shift into to restart.” is
shown
This message is displayed when the hybrid battery (traction bat tery) charge
has become extremely low because the shift lever has been left in N for a cer-
tain amount of time.
When operating the vehicle, shift to P and restart the hybrid s ystem.
■ If “Traction battery needs to be protected. Refrain from the use of
position.” is shown
This message may be displayed when the shift lever is in N.
As the hybrid battery (traction battery) cannot be charged when the shift lever
is in N, shift the shift lever to P when the vehicle is stopped .
■ If “Shift is in Release Accelerator Before Shifting” is shown
Message is displayed when the accelerator pedal has been depres sed and
the shift lever is in N.
Release the accelerator pedal and shift the shift lever to D or R.
■ If “Shift to Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without t urning the
power switch to off with the shift lever in any position other than P.
Shift the shift position to P.