engine overheat TOYOTA C-HR 2023 Owners Manual

15Pictorial index
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Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 343
Precautions for winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 541
To prevent freezing (windshield wiper de-icer*1) . . . . . . . . . . . P. 550
Precautions for using a car wash . . . . . . . . . . . . . . . . . . . . . . P. 581
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 348
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 348
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 767
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 614
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 774
Winter tires/tire chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 541
Checking/rotation/tire pressure warning system . . . . . . . . . . . P. 614
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 697, 727
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 594
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 594
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 768
Coping with overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 755
Camera*1, 2
Headlights/front position lights/
daytime running lights/turn sig nal lights . . . . . . . . . . P. 322, 331
Front fog lights*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 341
Side turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 322
Tail lights/turn signal lights . . . . . . . . . . . . . . . . . . . . . P. 322, 331
Tail lights (LED type)
Turn signal lights (LED type) . . . . . . . . . . . . . . . . . . . . . . . . P. 322
Back-up light (bulb type)
Shifting the shift lever to R. . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 313
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 331
Rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 341
Back-up light (LED type)
Shifting the shift lever to R. . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 313
Light bulbs of the exterior lights for driving
(Replacing method: P. 651, Watts: P. 776)
*1: If equipped
*2: For vehicles with navigation/multimedia system, refer to
“Navigation and multimedia system Owner’s manual” or “Multimedi a owner’s manual”.

1632. Instrument cluster
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Instrument cluster
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Symbols on multi-information displayPages
Charging system warning light P. 679
Low engine oil pressure warning light P. 679
High engine coolant temperature warning light P. 684
Smart entry & start system P. 303
Hybrid system overheat warning light P. 757
Brake Override System/Drive-Start Control P. 685
WARNING
■ If a safety system warning light does not come on
Should a safety system light such as ABS and SRS airbag warning light not
come on when you start the hybrid system, this could mean that these sys-
tems are not available to help protect you in an accident, whic h could result
in death or serious injury. Have the vehicle inspected by any a uthorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.

1672. Instrument cluster
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Instrument cluster
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■ Engine speed
On Hybrid Electric Vehicles, engine speed is precisely controll ed in order to
help improve fuel efficiency and reduce exhaust emissions, etc.
There are times when the engine speed that is displayed may dif fer even
when vehicle operation and driving conditions are the same.
■ Outside temperature display
● In the following situations, the correct outside temperature may not be dis-
played, or the display may take longer than normal to change.
• When stopped, or driving at low speeds (less than 25 km/h [16 mph])
• When the outside temperature has changed suddenly (at the entr ance/
exit of a garage, tunnel, etc.)
● When “--” is displayed, the system may be malfunctioning.
Take your vehicle to any authorized Toyota retailer or Toyota a uthorized
repairer, or any reliable repairer.
■ Adjusting the clock (if equipped)
The clocks can be adjusted on the multimedia system screen.
Refer to “Navigation and multimedia system Owner’s manual” or “ Multimedia
owner’s manual”.
NOTICE
■ To prevent damage to the engine and its components
The engine may be overheating if the engine coolant temperature gauge is
in the red zone (“H”). In this case, immediately stop the vehic le in a safe
place, and check the engine after it has cooled completely. ( P. 755)

2864-1. Before driving
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WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ When driving the vehicle
● Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the b rake
pedal will result in sudden acceleration that may lead to an ac cident.
• When backing up, you may twist your body around, leading to a diffi-
culty in operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving t he
vehicle only slightly. This allows you to depress the brake and accelera-
tor pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake
pedal using your left foot may delay response in an emergency, result-
ing in an accident.
● The driver should pay extra attention to pedestrians when the vehicle is
powered only by the electric motor (traction motor). As there i s no engine
noise, the pedestrians may misjudge the vehicle’s movement.
Even though the vehicle is equipped with the acoustic vehicle a lerting sys-
tem, drive with care as pedestrians in the vicinity may still n ot notice the
vehicle if the surrounding area is noisy.
● Do not drive the vehicle over or stop the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. Thes e hot
parts may cause a fire if there is any flammable material nearb y.
● During normal driving, do not turn off the hybrid system. Turning the hybrid
system off while driving will not cause loss of steering or bra king control,
however, power assist to the steering will be lost. This will m ake it more
difficult to steer smoothly, so you should pull over and stop t he vehicle as
soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 669
● Use engine braking (shift lever to B) to maintain a safe speed when driving
down a steep hill.
Using the brakes continuously may cause the brakes to overheat and lose
effectiveness. ( P. 314, 318)
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.

2884-1. Before driving
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WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■ If you hear a squealing or scraping noise (brake pad wear indicators)
Have the brake pads checked and replaced by any authorized Toyo ta
retailer or Toyota authorized repairer, or any reliable repaire r as soon as
possible.
Rotor damage may result if the pads are not replaced when neede d.
It is dangerous to drive the vehicle when the wear limits of th e brake pads
and/or those of the brake discs are exceeded.
■ When the vehicle is stopped
● Do not depress the accelerator pedal unnecessarily.
If the shift lever is in any position other than P or N, the ve hicle may accel-
erate suddenly and unexpectedly, causing an accident.
● In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indic ator is
illuminated, and apply the parking brake as necessary.
● If the vehicle is stopped on an incline, in order to prevent accidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped m ay cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.

3014-1. Before driving
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Driving
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■Important points regarding stability
Vehicle movement resulting from uneven road surfaces and strong
crosswinds will affect handling. The vehicle may also be rocked by
passing buses or large trucks. Frequently check behind when mov -
ing alongside such vehicles. As soon as such vehicle movement
occurs, immediately start to decelerate smoothly by slowly appl ying
the brakes. Always steer the vehicle straight ahead while braki ng.
■Passing other vehicles
Consider the total combined length of your vehicle and trailer and
ensure that the vehicle-to-vehicle distance is sufficient befor e exe-
cuting lane changes.
■Transmission information
To maintain engine braking efficiency and charging system perfo r-
mance when using engine braking, do not use the transmission in
D. Shift the shift lever to B.
■If the engine overheats
Towing a loaded trailer up a long, steep incline in temperature s
exceeding 30 C (85F) may result in the engine overheating. If the
engine coolant temperature gauge indicates that the engine is o ver-
heating, turn the air conditioning off immediately, leave the r oad and
stop the vehicle in a safe place. ( P. 755)
■When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle
and trailer. Firmly set the parking brake and shift the shift l ever to P.

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

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.

7557-2. Steps to take in an emergency
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7
When trouble arises
If your vehicle overheats
●The needle of the engine coolant temperature gauge (P. 1 6 4 )
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 condition ing
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 t he
hoses and radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks, immediately contact any aut ho-
rized Toyota retailer or Toyota authorized repairer, or any rel iable
repairer.
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
2ZR-FXE engineM20A-FXS engine

7577-2. Steps to take in an emergency
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7
When trouble arises
■If “Hybrid System Overheated Reduced Output Power.” is
shown on the multi-information display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has cooled down, inspect the hoses and
radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks, immediately contact any aut ho-
rized Toyota retailer or Toyota authorized repairer, or any rel iable
repairer.
The coolant level is satisfactory if it is between the “FULL” o r “F”
and “LOW” or “L” lines on the reservoir.
Reservoir
“FULL” or “F” line
“LOW” or “L” line
1
2
3
2ZR-FXE engineM20A-FXS engine
4
2ZR-FXE engineM20A-FXS engine