check engine TOYOTA C-HR 2021 (in English) Service Manual

4677-2. Steps to take in an emergency
7
When trouble arises
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Vehicles without a smart key system:
Maintain the engine speed of the second vehicle and turn the
engine switch to the “ON” position, then start the vehicle’s engine.
Vehicles with a smart key system:
Maintain the engine speed of the second vehicle and turn the
engine switch to IGNITION ON m ode, then start the vehicle’s
engine.
Once the vehicle’s engine has st arted, remove the jumper cables in
the exact reverse order from which they were connected.
To install the engine cover, conduct the removal procedure in
reverse. After installing, check that the fixed pins are inserted
securely.
Once the engine starts, have the vehicle inspected at your Toyota
dealer as soon as possible.
■ Starting the engine when t he battery is discharged
The engine cannot be started by push-starting.
■ To prevent battery discharge
●Turn off the headlights and the air conditioning system while the engine is
stopped.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic .
■ Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long t ime, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
■ Precautions when the battery is discharged (vehicles with a sma rt key
system)
● In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the battery is discharged. Use the wi reless
remote control or the mechanical key to lock or unlock the door s.
● The engine may not start on the first attempt after the battery has recharged
but will start normally after the second attempt. This is not a malfunction.
● The engine switch mode is memorized by the vehicle. When the ba ttery is
reconnected, the system will return to the mode it was in befor e the battery
was discharged. Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.
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4687-2. Steps to take in an emergency
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When replacing the battery
●Use a battery that conforms to European regulations.
● Use a battery that the case size is same as the previous one, 20 hour rate
capacity (20HR) is equivalent or greater, and performance rating (CCA) is
equivalent or greater.
Check the label on top of the battery for the battery size and specifications
(ex. LN2, 60Ah, 345A).
• If the sizes differ, the battery cannot be properly secured.
• 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 battery may discharge and the engine
may not be able to start.
● For details, consult your Toyota dealer.
WARNING
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally ignit ing the flam-
mable gas that may be emitted from the battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the in tended terminal.
● Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
● Do not allow the + and - clamps of the jumper cables to come in to contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open fla me near
the battery.
■ Battery precautions
The battery contains poisonous and corrosive acidic electrolyte , while
related parts contain lead and lead compounds. Observe the foll owing pre-
cautions when handling the battery:
● When working with the battery, always wear safety glasses and t ake care
not to allow any battery fluids (acid) to come into contact wit h skin, clothing
or the vehicle body.
● Do not lean over the battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medica l attention
can be received.
● Always wash your hands after handling the battery support, term inals, and
other battery-related parts.
● Do not allow children near the battery.

4717-2. Steps to take in an emergency
7
When trouble arises
C-HR_OM_USA_OM10684U
The coolant level is satisfactory
if it is between the “FULL” and
“LOW” lines on the reservoir.Reservoir
“FULL” line
“LOW” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the ai r conditioning system on to check
that the radiator cooling fan operates and to check for coolant leaks
from the radiator or hoses.
The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning
system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle ins pected at the nearest Toyota dealer.
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4788-1. Specifications
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*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Warm up and turn off the engine, wait more than 5 minutes,
and check the oil level on the dipstick.
Engine
Model 3ZR-FAE
Type4-cylinder in line, 4-cycle, gasoline
Bore and stroke 3.17  3.84 in. (80.5  97.6 mm)
Displacement 121.3 cu.in. (1987 cm3)
Valve clearance (engine
cold)Automatic adjustment
Drive belt tension Automatic adjustment
Fuel
Fuel type
Unleaded gasoline only
Octane rating87 (Research Octane Number 91) or higher
Fuel tank capacity
(Reference)13.2 gal. (50 L, 11.0 Imp.gal.)
Lubrication system
Oil capacity
(Drain and refill

reference
*)
With filter
Without filter 4.4 qt. (4.2 L, 3.7 Imp.qt.)
4.1 qt. (3.9 L, 3.4 Imp.qt.)

528What to do if... (Troubleshooting)
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What to do if... (Troubleshooting)
●If you lose your keys or mechanical keys, new genuine keys or mechanical
keys can be made by your Toyota dealer. (P. 114)
●If you lose your keys or electronic keys, the risk of vehicle t heft increases
significantly. Contact your Toyota dealer immediately. ( P. 119)
●Is the key battery weak or depleted? (P. 397)
●Vehicles with a smart key system:
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( P. 184)
●Vehicles with a smart key system:
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of t he radio
wave. ( P. 115, 136)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. ( P. 124)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

536Alphabetical index
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Eco Driving Indicator ................ 95
Electric Power Steering (EPS)....................................... 301 Warning light ......................... 435
Electronic key .......................... 112
Battery-saving function ......... 135
If the electronic key does not operate properly ................. 462
Replacing the battery ............ 397
Emergency, in case of If a warning buzzer sounds ... 434
If a warning light turns on...... 434
If a warning message is displayed ............................ 444
If the battery is discharged.... 465
If the electronic key does not operate properly ................. 462
If the engine will not start ...... 460
If the vehicle is trapped in rising water ......................... 425
If you have a flat tire ............. 449
If you think something is wrong .............................. 432
If your vehicle becomes stuck ................................... 473
If your vehicle has to be stopped in an emergency ... 423
If your vehicle needs to be towed .................................. 426
If your vehicle overheats ....... 470 Emergency flashers ................ 422
Engine ...................................... 478
ACCESSORY mode ............. 184
Compartment ........................ 361
Engine switch ............... 180, 183
Hood ..................................... 358
How to start the engine ........................ 180, 183
Identification number ............ 477
If the engine will not start ...... 460
Ignition switch (engine switch) ........... 180, 183
Overheating .......................... 470
Engine coolant......................... 365
Capacity................................ 480
Checking............................... 365
Preparing and checking before winter ...................... 306
Warning light......................... 437
Engine coolant temperature
gauge ....................................... 96
Engine immobilizer system ...... 84
Engine oil ................................. 362 Capacity................................ 478
Checking............................... 362
Preparing and checking before winter ...................... 306
Engine switch .................. 180, 183
EPS (Electric Power Steering) ..... 301
Warning light......................... 435
Event data recorder (EDR).......... 9
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544Alphabetical index
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Tachometer ................................ 96
Tail lights .................................. 204Light switch ........................... 204
Replacing light bulbs............. 417
Talk switch
*
Telephone switches*
Theft deterrent system Engine immobilizer system ..... 84
Tire inflation pressure ............. 386 Maintenance data ................. 482
Warning light ......................... 437
Tire information ....................... 487 Glossary................................ 494
Size ....................................... 490
Tire identification number ..... 489
Uniform Tire Quality Grading............................... 492
Tire pressure warning system .................................... 377 Initializing .............................. 377
Installing tire pressure
warning valves and
transmitters......................... 377
Registering ID codes ............ 379
Warning light ......................... 437
Tires .......................................... 376 Chains................................... 307
Checking ............................... 376
If you have a flat tire ............. 449
Inflation pressure .................. 482
Replacing .............................. 449
Rotating tires......................... 376
Size ....................................... 482
Snow tires ............................. 306
Spare tire .............................. 449
Tire pressure warning
system ......... ....................... 377
Warning light ......................... 437 Tools ......................................... 450
Top tether strap ......................... 59
Total load capacity .................. 177
Towing
Dinghy towing ....................... 179
Emergency towing ................ 426
Towing eyelet ....................... 428
Trailer towing ........................ 178
Toyota Safety Sense 2.5 ........ 224
Automatic High Beam ........... 209
Dynamic radar cruise control with full-speed range .......... 266
LTA (Lane Tracing Assist) .... 246
PCS (Pre-Collision system) ........ 231
RSA (Road Sign Assist) ....... 261
Traction Control (TRAC) ......... 300
Transmission ........................... 190 Continuously variable transmission ....................... 190
If the shift lever cannot be shifted from P ..................... 193
M mode................................. 191
TRAC (Traction Control) ......... 300
Trip meters ................................. 96
Turn signal lights .................... 195 Replacing light
bulbs........... 409, 410, 414, 417
Turn signal lever ................... 195
Wattage ................................ 483
T

546Alphabetical index
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Warning lights............................ 89ABS....................................... 435
Brake hold operated
indicator .............................. 436
Brake Override System......... 438
Brake system ....... ......... 434, 436
Charging system ................... 434
Electric parking brake ........... 436
Electric power steering system ......... ....................... 435
Engine oil pressure ............... 434
High engine coolant
temperature warning
light ..................................... 437
Low fuel level ........................ 437
Malfunction indicator lamp .... 435
PCS warning light ................. 436
“RCTA OFF” indicator ........... 435
Seat belt reminder light ......... 437
Slip indicator ......................... 436
SRS ...................................... 435
Tire pressure......................... 437 Warning messages.................. 444
Washer ............................. 215, 218
Checking............................... 373
Preparing and checking before winter ...................... 306
Switch ........................... 215, 218
Washing and waxing ............... 340
Weight ...................................... 476
What to do if... (Troubleshooting) ................. 528
Wheels ...................................... 390
Replacing.............................. 390
Size....................................... 482
Window glasses ...................... 157
Window lock switch ................ 157
Windows................................... 157 Power windows..................... 157
Rear window defogger.......... 315
Windshield wipers ................... 215
Winter driving tips ................... 306
Wireless remote control ......... 113 Battery-saving function ......... 135
Locking/Unlocking ................ 120
Replacing the battery............ 397