2017 TOYOTA C_HR HYBRID overheating

4064-5. Using the driving support systems
C-HR_HV_OM_Europe_OM10538E
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
■ Automatic reactivation of TRC and VSC systems
After turning the TRC and VSC systems off, the systems 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-enabling will
not occur when vehicle speed increases.
■ Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this 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 me t, the hill-start assist 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
■ Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
● The shift lever is shifted to P or N
● The accelerator pedal is depressed
● The parking brake is engaged
● Approximately 2 seconds elapse after the brake pedal is released

4886-1. Using the air conditioning system and defogger
C-HR_HV_OM_Europe_OM10538E
Heated steering wheel/seat heaters
: If equipped
Heated steering wheel and seat heaters heat the side grips of the
steering wheel and front seats, respectively.
WARNING
● Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically chal-
lenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
● Observe the following precautions to prevent minor burns or overheating:
• Do not cover the seat with a blanket or cushion when using the seat
heater.
• Do not use seat heater more than necessary.
NOTICE
● Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent 12-volt battery discharge, do not use the functions when the
hybrid system is off.

6578-2. Steps to take in an emergency
C-HR_HV_OM_Europe_OM10538E
8
When trouble arises
If your vehicle overheats
●The needle of the engine coolant temperature gauge (P. 125)
enters the red zone or a loss of hybrid system power is experi-
enced. (For example, the vehicle speed does not increase.)
● “Hybrid System Overheated Reduced Output Power.” is shown on
the multi-information display.
● Steam comes out from under the hood.
■If the high coolant temperature warning light comes on
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect the
hoses and radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
any authorized Toyota retailer
or Toyota authorized repairer,
or any reliable repairer.
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2

698Alphabetical index
C-HR_HV_OM_Europe_OM10538E
Care
Aluminum wheels .................. 513
Camera sensor ..................... 270
Exterior.................................. 512
Interior ................................... 517
Radar sensor ........................ 269
Seat belts .............................. 518
Cargo hooks ............................. 497
Catch protection function ....... 194
CD player*................................ 426
Chains ....................................... 414
Child restraint system ............... 61
Fixed with a seat belt .............. 71
Fixed with an ISOFIX rigid
anchor................................... 78
Points to remember................. 62
Riding with children ................. 60
Types of child restraint
system installation
method..... ............................. 66
Using an anchor bracket ......... 84
Child safety ................................ 60
12-volt battery precautions.... 538
Airbag precautions .................. 46
Child restraint system ............. 61
How your child should wear
the seat belt .......................... 40
Installing child restraints.......... 66
Power window lock switch .... 193
Power window precautions ... 197
Rear door child-protectors .... 153
Removed key battery
precautions ......................... 563
Seat belt precautions .............. 77
Seat heater precautions ........ 488
Child-protectors....................... 153
Cleaning
Aluminum wheels.................. 513
Camera sensor ..................... 270
Exterior ................................. 512
Interior................................... 517
Radar sensor ........................ 269
Seat belts .............................. 518
Clock ......................................... 506
Condenser ................................ 535
Console box ............................. 494
Coolant
Capacity ................................ 672
Checking ............................... 533
Preparing and checking
before winter....................... 412
Cooling system ........................ 533
Hybrid system overheating ... 657
Consumption screen ............... 138
Cruise control
Cruise control........................ 322
Dynamic radar cruise
control with full-speed
range .................................. 307
Cup holders.............................. 496
Curtain shield airbags ............... 43
Customizable features ............ 679
C

700Alphabetical index
C-HR_HV_OM_Europe_OM10538E
ECB (Electronically
Controlled Brake System) .... 402
Eco drive mode ........................ 328
Electric motor
Location .................................. 87
Specification.......................... 669
Electric Power Steering (EPS)
Function ................................ 403
Warning light ......................... 596
Electronic key
If the electronic key does not
operate properly ................. 648
Replacing the battery ............ 561
Electronically Controlled
Brake System (ECB).............. 402
Emergency flashers................. 586
Emergency, in case of
If a warning buzzer sounds ... 595
If a warning light turns on ...... 595
If a warning message is
displayed ............................ 606
If the 12-volt battery is
discharged .......................... 651
If the electronic key does not
operate properly ................. 648
If the hybrid system will not
start..................................... 646
If you have a flat tire...... 612, 632
If you lose your keys ..... 145, 148
If you think something is
wrong .................................. 594
If your vehicle becomes
stuck ................................... 662
If your vehicle has to be
stopped in an emergency ... 587
If your vehicle needs to be
towed .................................. 588
If your vehicle overheats ....... 657
Energy monitor ........................ 138
Engine
Accessory mode ................... 222
Compartment ........................ 529
Engine switch........................ 221
Exhaust gas precautions ........ 56
Hood ..................................... 526
How to start the hybrid
system ................................ 221
Identification number ............ 668
If the hybrid system will not
start .................................... 646
If your vehicle has to be
stopped in an emergency ... 587
Ignition switch
(power switch) .................... 221
Overheating .......................... 657
Power switch......................... 221
Engine coolant
Capacity ................................ 672
Checking ............................... 533
Preparing and checking
before winter....................... 412
Warning light ......................... 600
Engine oil
Capacity ................................ 670
Checking ............................... 530
Oil pressure warning light ..... 595
Preparing and checking
before winter....................... 412
Engine switch .......................... 221
Auto power off function ......... 223
Changing the power switch
modes................................. 222
If your vehicle has to be
stopped in an emergency ... 587
Starting the hybrid system .... 221
EPS (Electronic Power Steering)
Function ................................ 403
Warning light ......................... 596
EV indicator.............................. 122
EV drive mode.......................... 228
Exhaust gas precautions .......... 56
E

702Alphabetical index
C-HR_HV_OM_Europe_OM10538E
Hands-free system
(for cellular phone)*.............. 467
Head restraints......................... 182
Headlight cleaners ................... 256
Headlights ................................ 244
Automatic headlight
leveling ............................... 248
Automatic High Beam ........... 249
Follow me home system ....... 245
Light switch ........................... 244
Manual headlight
leveling dial......................... 246
Replacing light bulbs ............. 570
Wattage................................. 676
Heated steering wheel ............. 488
Heaters
Automatic air conditioning
system ................................ 478
Heated steering wheel .......... 488
Outside rear view mirrors ...... 482
Seat heaters.......................... 488
High coolant temperature
warning light .......................... 600
High mounted stoplight
Replacing .............................. 582
Hill-start assist control ............ 403
Hood.......................................... 526
Hooks
Cargo hooks ......................... 497
Grocery bag hook ................. 497
Retaining hooks (floor mat)..... 34
Horn .......................................... 186
Hybrid battery (traction battery)
Location .................................. 92
Specification ......................... 669
Hybrid battery
(traction battery) air intake
vent ........................................... 93
Hybrid system ............................ 87
Brake Override System......... 202
Drive-Start Control ................ 202
Emergency shut off system .... 93
Energy monitor/consumption
screen................................. 138
EV drive mode ...................... 228
High voltage components ....... 92
Hybrid System Indicator........ 127
Hybrid system precautions ..... 92
Hybrid vehicle driving tips ..... 409
If the hybrid system will not
start .................................... 646
Overheating .......................... 657
Power switch......................... 221
Regenerative braking.............. 89
Starting the hybrid system .... 221
Hybrid System Indicator ......... 127
Hybrid transmission ................ 231
H

705Alphabetical index
C-HR_HV_OM_Europe_OM10538E
Navigation system*
Odometer .................................. 125
Oil
Engine oil .............................. 670
Opener
Back door .............................. 158
Fuel filler door ....................... 264
Hood ..................................... 526
Outside rear view mirrors ....... 190
Adjustment ............................ 190
Blind Spot Monitor................. 335
Folding .................................. 191
Outside rear view mirror
defoggers............................ 482
Outside temperature
display .................................... 125
Overheating .............................. 657
Overheating, Engine ................ 657
Parking assist sensors
S-IPA (Simple Intelligent
Parking Assist System)....... 363
Toyota parking
assist-sensor ...................... 351
Parking brake ........................... 236
Parking brake engaged
warning buzzer ................... 239
Warning light ................. 597, 598
PCS (Pre-Crash Safety)
Enabling/disabling the
system ................................ 278
Function ................................ 274
Warning light ......................... 598
Personal lights ......................... 491
Wattage ................................ 676
Power control unit coolant
Capacity ................................ 672
Checking ............................... 533
Preparing and checking
before winter....................... 412
Radiator ................................ 535
Power outlets ........................... 507
Power steering (Electric
Power Steering system) ....... 403
Warning light ......................... 596
Power switch............................ 221
Auto power off function ......... 223
Changing the power
switch modes...................... 222
If your vehicle has to be
stopped in an emergency ... 587
Starting the hybrid
system ................................ 221
Power windows
Catch protection function ...... 194
Door lock linked window
operation ............................ 196
Jam protection function......... 194
Operation .............................. 193
Window lock switch............... 193
Pre-Crash Safety (PCS)
Enabling/disabling the
system ................................ 278
Function ................................ 274
Warning light ......................... 598
N
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*: For vehicles with navigation system or multimedia system,
refer to the “Navigation and multimedia system Owner’s manual”.