ECO mode TOYOTA C-HR 2023 Service Manual

6066-3. Do-it-yourself maintenance
C-HR_HEV_OM_Europe_OM10764E
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas whic h is flam-
mable and explosive. Therefore, observe the following precautio ns before
recharging:
● If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ After recharging/reconnecting the 12-volt battery
● The hybrid system may not start. Follow the procedure below to initialize the
system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the hybrid system.
● Vehicles with entry function: Unlocking the doors using the smart entry &
start system may not be possible immediately after reconnecting the 12-volt
battery. If this happens, use the wireless remote control or th e mechanical
key to lock/unlock the doors.
● Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. H owever, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to t he status it
was in before the 12-volt battery was disconnected. Make sure t o turn off
the power switch before disconnect the 12-volt battery. Take ex tra care
when connecting the 12-volt battery if the power switch mode pr ior to dis-
charge is unknown.
If the system will not start even after multiple attempts at al l methods above,
contact any authorized Toyota retailer or Toyota authorized rep airer, or any
reliable repairer.
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6116-3. Do-it-yourself maintenance
C-HR_HEV_OM_Europe_OM10764E
6
Maintenance and care
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas whic h is flam-
mable and explosive. Therefore, observe the following precautio ns before
recharging:
● If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ After recharging/reconnecting the 12-volt battery
● The hybrid system may not start. Follow the procedure below to initialize the
system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the hybrid system.
● Vehicles with entry function: Unlocking the doors using the smart entry &
start system may not be possible immediately after reconnecting the 12-volt
battery. If this happens, use the wireless remote control or th e mechanical
key to lock/unlock the doors.
● Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. H owever, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to t he status it
was in before the 12-volt battery was disconnected. Make sure t o turn off
the power before disconnect the 12-volt battery. Take extra car e when con-
necting the 12-volt battery if the power switch mode prior to d ischarge is
unknown.
If the system will not start even after multiple attempts all m ethods above,
contact any authorized Toyota retailer or Toyota authorized rep airer, or any
reliable repairer.
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6206-3. Do-it-yourself maintenance
C-HR_HEV_OM_Europe_OM10764E
■ The initialization operation
● Make sure to carry out initialization after adjusting the tire inflation pressure.
Also, make sure the tires are cold before carrying out initiali zation or tire
inflation pressure adjustment.
● If you have accidentally turned the power switch off during initialization, it is
not necessary to press the reset switch again as initialization will restart
automatically when the power switch has been turned to ON mode for the
next time.
● If you accidentally press the reset switch when initialization is not necessary,
adjust the tire inflation pressure to the specified level when the tires are
cold, and conduct initialization again.
■ Warning performance of the tire pressure warning system
The warning of the tire pressure warning system will change in accordance
with the conditions under which it was initialized. For this re ason, the system
may give a warning even if the tire pressure does not reach a l ow enough
level, or if the pressure is higher than the pressure that was adjusted to when
the system was initialized.
■ When initialization of the tire pressure warning system has failed
Initialization can be completed in a few minutes. However, in t he following
cases, the settings have not been recorded and the system will not operate
properly. If repeated attempts to record tire inflation pressur e settings are
unsuccessful, have the vehicle inspected by any authorized Toyo ta retailer or
Toyota authorized repairer, or any reliable repairer as soon as possible.
● When operating the initialization of the system, the tire pressure warning
light does not flash 3 times and the setting message does not a ppear on the
multi-information display.
● After driving for a certain period of time since the initialization has been
completed, the warning light comes on after blinking for 1 minu te.
■ Registering ID codes
The ID codes of the tire pressure warning valve and transmitter s for two sets
of wheels can be registered.
It is not necessary to register the ID codes when replacing nor mal tires with
snow tires, if the ID codes for the wheels of both normal tires and snow tires
are registered beforehand.
For information about changing ID codes, ask any authorized Toy ota retailer
or Toyota authorized repairer, or any reliable repairer.

6286-3. Do-it-yourself maintenance
C-HR_HEV_OM_Europe_OM10764E
WARNING
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drivetrain as well as dan-
gerous handling characteristics, which may lead to an accident resulting in
death or serious injury.
● Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
● Do not use tire sizes other than those recommended by Toyota.
● Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
● Do not mix summer, all season and snow tires.
● Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previous ly.
● Vehicles with a compact spare tire: Do not tow if your vehicle has a com-
pact spare tire installed.
■ When initializing the tire pressure warning system
Do not initialize the tire pressure warning system without firs t adjusting the
tire inflation pressure to the specified level. Otherwise, the tire pressure
warning light may not come on even if the tire inflation pressu re is low, or it
may come on when the tire inflation pressure is actually normal .

6867-2. Steps to take in an emergency
C-HR_HEV_OM_Europe_OM10764E
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the vol tage tempo-
rarily drops, the electric power steering system warning light may come 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 sever al trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer as soon
as possible.
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger 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.
■ Warning light operations for unfastened rear passenger seat belts
● When opening and closing the rear door, the warning light comes on for
approximately a certain period of time.
● When any of the rear seat belts are unfastened, the warning light comes on.
When the rear doors are opened and closed while the warning light is on, the
warning light will turn off after approximately a certain perio d of time.
■ When the tire pressure warning light comes on
Inspect the appearance of the tire to check that the tire is no t punctured.
If the tire is punctured: P. 697, 727
If the tire is not punctured:
Carry out the following procedure after the tire temperature ha s lowered suffi-
ciently.
● Check the tire inflation pressure and adjust to the appropriate level.
● If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
( P. 617)
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficient ly.

7437-2. Steps to take in an emergency
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When trouble arises
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. (P. 747)
● One or both of the 12-volt battery terminals may be disconnected.
( P. 604)
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer if the problem cannot be repaired, or if repa ir procedures
are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the po wer
switch is functioning normally.
Do not use this starting procedure except in cases of emergency .
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by any
authorized Toyota retailer or Toyota authorized repairer, or an y reliable
repairer.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function
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7467-2. Steps to take in an emergency
C-HR_HEV_OM_Europe_OM10764E
■Stopping the hybrid system
Set the parking brake, shift the shift lever to P and press the power switch as
you normally do when stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommende d that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 643)
■ Alarm (if equipped)
Using the mechanical key to lock the doors will not set the ala rm system.
If a door is unlocked using the mechanical key when the alarm s ystem is set,
the alarm may be triggered. ( P. 146)
■ Changing power switch modes
Release the brake pedal and press the power switch in step abo ve. The
hybrid system does not start and modes will be changed each tim e the switch
is pressed. ( P. 304)
■ When the electronic key does not work properly
● Make sure that the smart entry & start system has not been deactivated in
the customization setting. If it is off, turn the function on.
(Customizable features: P. 779)
● Check if battery-saving mode is set. If it is set, cancel the function.
( P. 207)
WARNING
■When using the mechanical key and operating the power windows
Operate the power window after checking to make sure that there is no pos-
sibility of any passenger having any of their body parts caught in the side
window. Also, do not allow children to operate the mechanical k ey. It is pos-
sible for children and other passengers to get caught in the po wer window.
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7497-2. Steps to take in an emergency
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When trouble arises
M20A-FXS engine
Connect the positive jumper cable clamp to exclusive jump start -
ing terminal on your vehicle.
Connect the clamp on the other end of the positive cable to pos i-
tive (+) battery terminal on the second vehicle.
Connect the negative cable clamp to negative (-) battery termin al
on the second vehicle.
Connect the clamp at the other end of the negative cable to sol id,
stationary, unpainted metallic point away from the exclusive ju mp
starting terminal and any moving parts as shown in the illustra -
tion.
Start the engine of the second vehicle. Increase the engine spe ed
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
Open and close any of the doors of your vehicle with the engine
switch off.
Maintain the engine speed of the second vehicle and start the
hybrid system of your vehicle by turning the power switch to ON
mode.
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7517-2. Steps to take in an emergency
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When trouble arises
■When recharging or replacing the 12-volt battery
● In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the 12-volt battery is discharged. Us e the wire-
less remote control or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-vol t battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12 -volt battery.
■ When replacing the 12-volt battery
2ZR-FXE engine
● Use a 12-volt battery that conforms to European regulations.
● Use a 12-volt battery that the case size is same as the previous one (LN1),
20 hour rate capacity (20HR) is equivalent (45Ah) or greater, a nd perfor-
mance rating (CCA) is equivalent (286A) or greater.
• If the sizes differ, the 12-volt battery cannot be properly se cured.
• If the 20 hour rate capacity is low, even if the time period w here the vehi-
cle is not used is a short time, the 12-volt battery may discha rge and the
hybrid system may not be able to start.
● For details, consult any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

801Alphabetical index
C-HR_HEV_OM_Europe_OM10764E
Double locking system............ 144
Drive information ..................... 169
Drive-Start Control................... 284
Driving
Break-in tips .......................... 285
Correct posture ....................... 34
Driving in the rain .................. 284
Driving mode select .............. 430
Hybrid Electric Vehicle
driving tips .......................... 538
Procedures............................ 282
Winter drive tips .................... 541
Dynamic radar cruise
control .................................... 408
eCall ............................................ 96
ECB (Electronically
Controlled Brake System) .... 530
Eco drive mode ........................ 430
Electric motor
Location ................................ 117
Specification.......................... 767
Electric Power Steering (EPS)
Function ................................ 531
Warning light ......................... 680
Electronic key
If the electronic key does not
operate properly ................. 744
Replacing the battery ............ 643
Electronically Controlled
Brake System (ECB).............. 530
Emergency flashers................. 668
Emergency, in case of
If a warning buzzer sounds ... 679
If a warning light turns on...... 679
If a warning message is
displayed ............................ 690
If the 12-volt battery is
discharged .......................... 747
If the electronic key does not
operate properly ................. 744
If the hybrid system will not
start .................................... 742
If the vehicle is trapped in
rising water ......................... 670
If you have a flat tire ..... 697, 727
If you lose your keys ..... 187, 190
If you think
something is wrong ............ 678
If your vehicle becomes
stuck ................................... 760
If your vehicle has to be
stopped in an emergency ... 669
If your vehicle needs to be
towed .................................. 672
If your vehicle overheats ....... 755
Energy monitor ........................ 177
Engine
Accessory mode ................... 304
Compartment ........................ 597
Engine switch........................ 303
Exhaust gas precautions ........ 54
Hood ..................................... 594
How to start
the hybrid system ............... 303
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