check engine TOYOTA C-HR 2023 Owner's Manual

6466-3. Do-it-yourself maintenance
C-HR_HEV_OM_Europe_OM10764E
Checking and replacing fuses
Turn the power switch off.
Open the fuse box cover.
Engine compartment type A fuse box
While pushing the 2 claws, lift up
the cover.
When closing the cover, make sure
to attach the 2 claws.
Engine compartment type B fuse box (2ZR-FXE engine)
While pushing the 3 claws, lift up
the cover.
When closing the cover, make sure
to attach the 3 claws.
Engine compartment type B fuse box (M20A-FXS engine)
While pushing the 3 claws, lift up
the cover.
When closing the cover, make sure
to attach the 3 claws.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec -
essary.
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2

6847-2. Steps to take in an emergency
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Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 687)
• Flat tire ( P. 697, 727)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case the
light does not turn off even if the tire inflation pres-
sure is adjusted, have the system checked by any
authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system ( P. 687)
 Have the system checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
*1High engine coolant temperature warning light (warning
buzzer)
Indicates that the engine coolant temperature is too high
 P. 755
*1Hybrid system overheat warning light (warning buzzer)
Indicates that the hybrid system has overheated
 Stop the vehicle in a safe place.
Handling method ( P. 757)
Warning lightWarning light/Details/Actions

6937-2. Steps to take in an emergency
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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
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■ 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.

7587-2. Steps to take in an emergency
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Add coolant if necessary.
If coolant is unavailable, use water as an emergency measure,
and have the vehicle inspected at any authorized Toyota retaile r,
Toyota authorized repairer, or any reliable repairer as soon as
possible.
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system again and check if “Hybrid System
Overheated” is shown on the multi-information display.
If the message does not disappear:
Stop the hybrid system and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repaire r.
If the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the message appears again frequently, contact any a utho-
rized Toyota retailer or Toyota authorized repairer, or any rel iable
repairer.
5
2ZR-FXE engineM20A-FXS engine
6

7597-2. Steps to take in an emergency
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7
When trouble arises
WARNING
■To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may au tomati-
cally start, or the cooling fans may suddenly operate even if t he gasoline
engine stops. Do not touch or approach rotating parts such as t he fan,
which may lead to fingers or clothing (especially a tie, a scar f or a muffler)
getting caught, resulting in serious injury.
● Do not loosen the coolant reservoir caps while the hybrid system and radi-
ator are hot.
High temperature steam or coolant could spray out.
NOTICE
■ When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down suff iciently.
Adding cool coolant to a hot hybrid system too quickly can caus e damage to
the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust,
etc.).
● Do not use any coolant additive.

7688-1. Specifications
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2ZR-FXE engine (except for Guadelope, Martinique, F. Guiana and
Greenland)
2ZR-FXE engine (for Guadelope, Martinique, F. Guiana and Greenl and)
and M20A-FXS engine:
■Oil capacity (Drain and refill ― reference*)
*: The engine oil capacity is a reference quantity to be used whe n changing
the engine oil. Warm up the engine and turn off the hybrid syst em, wait
more than 5 minutes, and check the oil level on the dipstick.
Hybrid battery (traction battery)
Voltage3.7 V/cell
Capacity3.6 Ah (3HR)
Quantity56 cells
Nominal voltage207.2 V
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity
2ZR-FXE engine
28 modules
M20A-FXS engine
30 modules
Nominal voltage
2ZR-FXE engine
201.6 V
M20A-FXS engine
216 V
Lubrication system
With filter
2ZR-FXE engine
4.2 L (4.4 qt., 3.7 Imp. qt.)
M20A-FXS engine
4.3 L (4.5 qt., 3.8 Imp. qt.)
Without filter3.9 L (4.1 qt., 3.4 Imp.qt.)

802Alphabetical index
C-HR_HEV_OM_Europe_OM10764E
Identification number............. 766
If the hybrid system will not
start..................................... 742
If your vehicle has to be
stopped in an emergency ... 669
Ignition switch
(power switch) .................... 303
Overheating .......................... 755
Power switch ......................... 303
Engine coolant
Capacity ................................ 771
Checking ............................... 602
Preparing and
checking before winter........ 541
Warning light ......................... 684
Engine oil
Capacity ................................ 768
Checking ............................... 599
Oil pressure warning light ..... 679
Preparing and checking
before winter....................... 541
Engine switch........................... 303
Auto power off function ......... 305
Changing the
power switch modes ........... 304
If your vehicle has to be
stopped in an emergency ... 669
Starting the hybrid system .... 303
EPS
(Electronic Power Steering)
Function ................................ 531
Warning light ......................... 680
EV drive mode .......................... 310
EV indicator ...................... 119, 161
Exhaust gas precautions .......... 54
Extended headlight lighting
system .................................... 332
First-aid kit storage space ...... 567
Flat tire.............................. 697, 727
Floor mats .................................. 32
Fluid
Brake .................................... 773
Transmission ........................ 772
Washer ................................. 609
Fog lights
Replacing
light bulbs ........... 653, 660, 664
Switch ................................... 341
Wattage ................................ 776
Front doors .............................. 191
Front fog lights
Replacing light bulbs..... 653, 664
Switch ................................... 341
Wattage ................................ 776
Front personal lights ............... 558
Wattage ................................ 776
Front position lights
Light switch ........................... 331
Replacing light bulbs............. 664
Front seats ............................... 260
Adjustment ............................ 260
Cleaning................................ 584
Correct driving posture ........... 34
Head restraints ..................... 264
Seat heaters ......................... 555
Front turn signal lights
Replacing light bulbs..... 655, 664
Turn signal lever ................... 322
Wattage ................................ 776
F

811Alphabetical index
C-HR_HEV_OM_Europe_OM10764E
Warning buzzers
Blind Spot Monitor (BSM) ..... 435
Brake system ........................ 679
Lane Tracing Assist (LTA) .... 385
Open back door .................... 200
Open door ............................. 197
Pre-collision warning ............. 367
Radar cruise control .............. 418
RSA (Road Sign Assist) ........ 400
Parking brake ........................ 326
PKSB
(Parking Support Brake) ..... 681
Seat belt reminder................. 683
Toyota
parking assist-sensor.......... 456
Warning lights .......................... 157
ABS ....................................... 680
Brake Override System ......... 685
Brake system ........................ 679
Charging system ................... 679
Electric parking brake ... 682, 683
Electric power steering.......... 680
High coolant temperature...... 684
Low engine oil pressure ........ 679
Low fuel level ........................ 683
Malfunction indicator lamp .... 680
PKSB OFF indicator.............. 681
PCS....................................... 682
Seat belt reminder light ......... 683
Slip indicator ......................... 682
SRS....................................... 680
Tire pressure ......................... 684
Toyota parking assist-sensor
OFF indicator...................... 681
Warning messages .................. 690
Washer
Checking ............................... 609
Preparing and checking
before winter....................... 541
Switch ........................... 343, 346
Washing and waxing ............... 578
What to do if...
(Troubleshooting) ................. 794
Wheels ...................................... 632
Replacing wheels.................. 632
Size ....................................... 774
Window glasses....................... 275
Window lock switch ................ 275
Windows
Power windows ..................... 275
Rear window defogger .......... 550
Washer ......................... 343, 346
Windshield wipers ................... 343
Winter driving tips ................... 541
Wireless remote control key... 186
Locking/Unlocking......... 186, 192
Replacing the battery ............ 643
W
*: For vehicles with navigation/multimedia system, refer to
“Navigation and multimedia system Owner’s manual” or
“Multimedia owner’s manual”.