overheating TOYOTA YARIS CROSS 2023 Owners Manual

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Pictorial index
Precautions for car wash (vehicles with rain-sensing windshield wipers)
............................................................... ..........................................P.369
Fuel filler door ............................................... .................................P.224
Refueling method ............................................... ..............................P.225
Fuel type/fuel tank capacity ................................... ..........................P.486
Tires .......................................................... ......................................P.390
Tire size/inflation pressure ................................... ............................P.490
Winter tires/tire chains ....................................... ..............................P.337
Checking/rotation/tire pressure warning system ................. .............P.390
Coping with flat tires......................................... ........................P.448, 459
Hood ........................................................... .....................................P.380
Opening ........................................................ ...................................P.380
Engine oil ..................................................... ....................................P.486
Coping with overheating ........................................ ..........................P.477
Headlights/front position lights ............................... .............P.200, 206
Turn signal lights/daytime running lights ...................... ......P.200, 206
Front fog lights*2............................................................... .............P.218
Tail lights/turn signal lights ................................. .................P.200, 206
Stop lights
Tail lights*2 /turn signal lights*2............................................P.200, 206
Rear fog light*2............................................................... ................P.218
Back-up light*2
Shifting the shift position to R ............................... ...........................P.197
Side turn signal lights ........................................ ...........................P.200
License plate lights........................................... .............................P.206
*1: Vehicles with a smart entry & start system
Light bulbs of the exterior lights for driving
(Replacing method: P.417, Watts: P.492)

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1-4. Hybrid system
There is an air intake vent under
the left side of the rear seat for the
purpose of cooling the hybrid bat-
tery (traction battery). If the vent
becomes blocked, the hybrid bat-
tery (traction battery) input and out-
put may be reduced.
When a certain level of impact is
detected by the impact sensor, the
emergency shut off system blocks
the high voltage current and stops
the fuel pump to minimize the risk
of electrocution and fuel leakage. If
the emergency shut off system acti-
WARNING
When reselling or handing over your vehicle, the possibility of an accident
is extremely high because the person receiving the vehicle may not be aware of these dangers.
●If your vehicle is disposed of with-out the hybrid battery having been
removed, there is a danger of seri- ous electric shock if high voltage parts, cables and their connectors
are touched. In the event that your vehicle must be disposed of, the hybrid battery must be disposed of
by any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer. If the hybrid bat-
tery is not disposed of properly, it may cause electric shock that can result in death or serious injury.
NOTICE
■Hybrid battery (traction battery) air intake vent
Do not carry large amounts of water such as water cooler bottles in the vehicle. If water spills onto the hybrid
battery (traction battery), the battery may be damaged. Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
Hybrid battery (traction bat-
tery) air intake vent
NOTICE
■Hybrid battery (traction battery) air intake vent
●Make sure that the air intake vent is not blocked, such as by a seat cover, plastic cover, or luggage. If
the vent is blocked, the hybrid bat- tery (traction battery) input and out-put may be restricted, possibly
leading to a malfunction.
●Clean the air intake vent regularly
to prevent the hybrid battery (trac- tion battery) from overheating.
●Do not get water or foreign materi-als in the air intake vent as this may cause a short circuit and damage
the hybrid battery (traction battery).
●A filter is installed to the air intake
vent. When the filter remains noticeably dirty even after cleaning the air intake vent, filter cleaning or
replacement is recommended. Refer to P.406 for details on how to clean the filters.
Emergency shut off system

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2-1. Instrument cluster
Vehicle status information and indicators
• When the outside temperature has
changed suddenly (at the entrance/exit of a garage, tunnel, etc.)
●When “--” is displayed, the system may be malfunctioning. Take your vehicle to any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
■Fuel gauge and driving range dis-play
The fuel gauge and driving range dis- play are linked. If the fuel gauge and driving range display do not update after
refueling a small amount, they can be updated by performing the following pro-cedure:
1 Stop the vehicle on a level surface.
Wait until the fuel in the fuel tank stabi- lizes.
2 Press the display change button to change the odometer and trip meter
display to the odometer.
3 Turn the power switch off.
4 While pressing and holding the dis- play change button, turn the power switch to ON.
5 Continue holding the display change
button for approximately 5 seconds.
Release the button when the odometer begins blinking.
Updating will be complete when the odometer blinks for approximately 5 seconds and then returns to the normal
display.
■Liquid crystal display
 P. 1 0 6
■Customization
The gauges and meters can be custom-
ized in of the multi-information dis-
play. ( P.494)
■Changing the display
Press the display change button
until the desired item is displayed.
WARNING
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crys-tal information display. At extremely
low temperatures, the information dis- play monitor may respond slowly, and display changes may be delayed.
For example, there is a lag between the driver’s shifting and the new gear
number appearing on the display. This lag could cause the driver to downshift again, causing rapid and
excessive engine braking and possi- bly an accident resulting in death or injury.
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 vehicle in a safe place, and check the engine after it
has cooled completely. ( P.477)
Odometer and trip meter
display

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2-1. Instrument cluster
Vehicle status information and indicators
Shows that an Eco-friendly driving range
is being exceeded (during full power
driving, etc.)
*: When used in this manual, regenera-
tion refers to the conversion of energy
created by the movement of the vehi-
cle into electrical energy.
In the following situation, the Hybrid
System Indicator does not operate.
●“READY” indicator is not illuminated.
●The shift position is in a range other than D or B.
■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
entrance/exit of a garage, tunnel, etc.)
●When “--” is displayed, the system
may be malfunctioning. Take your vehicle to any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer.
■Fuel gauge and driving range dis- play
The fuel gauge and driving range dis-
play are linked. If the fuel gauge and driving range display do not update after refueling a small amount, they can be
updated by performing the following pro- cedure:
1 Stop the vehicle on a level surface.
Wait until the fuel in the fuel tank stabi-
lizes.
2 Press the display change button to change the odometer and trip meter display to the odometer.
3 Turn the power switch off.
4 While pressing and holding the dis-
play change button, turn the power switch to ON.
5 Continue holding the display change
button for approximately 5 seconds.
Release the button when the odometer begins blinking.
Updating will be complete when the odometer blinks for approximately 5 seconds and then returns to the normal
display.
■Liquid crystal display
 P. 1 1 3
■Customization
The gauges and meters can be custom-
ized in of the multi-information dis-
play. ( P.494)
WARNING
■The information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crys-tal information display. At extremely
low temperatures, the information dis- play monitor may respond slowly, and display changes may be delayed.
For example, there is a lag between the driver’s shifting and the new gear
number appearing on the display. This lag could cause the driver to downshift again, causing rapid and
excessive engine braking and possi- bly an accident resulting in death or injury.
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 vehicle in a safe place, and check the engine after it
has cooled completely. ( P.477)

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4-1. Before driving
Driving
at a time to prevent steering
error. Have someone guide you
when reversing to lessen the risk
of an accident.
■Increasing vehicle-to-vehicle
distance
At a speed of 10 km/h (6 mph), the
distance to the vehicle running
ahead of you should be equivalent
to or greater than the combined
length of your vehicle and trailer.
Avoid sudden braking that may
cause skidding. Otherwise, the
vehicle may spin out of control. This
is especially true when driving on
wet or slippery road surfaces.
■Sudden acceleration/steering
input/cornering
Executing sharp turns when towing
may result in the trailer colliding
with your vehicle. Decelerate well in
advance when approaching turns
and take them slowly and carefully
to avoid sudden braking.
■Important points regarding
turning
The wheels of the trailer will travel
closer to the inside of the curve
than the wheels of the vehicle. To
make allowance for this, take the
turns wider than you would nor-
mally do.
■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. Fre-
quently check behind when moving
alongside such vehicles. As soon
as such vehicle movement occurs,
immediately start to decelerate
smoothly by slowly applying the
brakes. Always steer the vehicle
straight ahead while braking.
■Passing other vehicles
Consider the total combined length
of your vehicle and trailer and
ensure that the vehicle-to-vehicle
distance is sufficient before execut-
ing lane changes.
■Transmission information
To maintain engine braking effi-
ciency and charging system perfor-
mance when using engine braking,
do not use the transmission in D.
( P.197)
■If the engine overheats
Towing a loaded trailer up a long,
steep incline in temperatures
exceeding 30°C (85°F) may result
in the engine overheating. If the
engine coolant temperature gauge
indicates that the engine is over-
heating, turn the air conditioning off
immediately, leave the road and
stop the vehicle in a safe place.
( P.477)
■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 lever to P.

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4-1. Before driving
WARNING
Follow all the instructions described in this section. Failure to do so could
cause an accident resulting in death or serious injury.
■Trailer towing precautions
When towing, make sure that none of the weight limits are exceeded.
( P.183)
■Vehicle speed in towing
Observe the legal maximum speeds for trailer towing.
■Before descending hills or long declines
Reduce speed and downshift. How-
ever, never downshift suddenly while descending steep or long downhill grades.
■Operation of the brake pedal
Do not hold the brake pedal
depressed often or for long periods of time. Doing so may result in the brake overheating or reduce braking effects.
■To avoid accident or injury
●Vehicles with a compact spare tire:
Do not tow a trailer when the com- pact spare tire is installed on your vehicle.
●Vehicles with the emergency tire puncture repair kit: Do not tow a
trailer when the tire installed is repaired with the emergency tire puncture repair kit.
●Vehicles with a Dynamic radar cruise control with full-speed range:
Do not use dynamic radar cruise control when you are towing.
NOTICE
■Do not directly splice trailer lights
Directly splicing trailer lights may damage your vehicle’s electrical sys-tem and cause a malfunction.

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4-2. Driving procedures
until the “READY” indicator is steady
on, as steady means the vehicle is able to move.
●When the hybrid battery (traction bat-tery) is extremely cold (below approxi-mately -30°C [-22°F]) under the
influence of the outside temperature, it may not be possible to start the hybrid system. In this case, try to start the
hybrid system again after the tem- perature of the hybrid battery increases due to the outside tempera-
ture increase, etc.
■Sounds and vibrations specific to a hybrid electric vehicle
 P. 7 7
■If the 12-volt battery is discharged
The hybrid system cannot be started using the smart entry & start system. Refer to P.472 to restart the hybrid sys-
tem.
■Electronic key battery depletion
 P. 1 3 1
■Conditions affecting operation
 P. 1 5 4
■Notes for the entry function
 P. 1 5 4
■Steering lock function (if equipped)
●After turning the power switch off and
opening and closing the doors, the steering wheel will be locked due to the steering lock function. Operating
the power switch again automatically cancels the steering lock.
●When the steering lock cannot be released, “Push POWER Switch while Turning the Steering Wheel in Either
Direction” will be displayed on the multi-information display. Press the power switch shortly and
firmly while turning the steering wheel left and right.
●To prevent the steering lock motor
from overheating, the motor may be suspended if the hybrid system is turned on and off repeatedly in a short
period of time. In this case, refrain from operating the power switch. After about 10 seconds, the steering lock
motor will resume functioning.
■If the “READY” indicator does not come on
In the event that the “READY” indicator
does not come on even after performing the proper procedures for starting the vehicle, contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer immediately.
■If the hybrid system is malfunction-ing
 P. 4 4 5
■Electronic key battery
 P. 4 0 9
■Operation of the power switch
●If the switch is not pressed shortly and firmly, the power switch mode may not change or the hybrid system may not
start.
●If attempting to restart the hybrid sys-
tem immediately after turning the power switch off, the hybrid system may not start in some cases. After
turning the power switch off, please wait a few seconds before restarting the hybrid system.
■Customization
If the smart entry & start system has been deactivated in a customized set-ting, refer to P.470.

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4-2. Driving procedures
●The driver’s door is closed
●The driver is wearing the seat belt
●The shift lever is a forward or reverse position.
●The malfunction indicator lamp or brake system warning light is not illu-minated.
If the automatic release function does not operate, manually release the park-ing brake.
■Parking brake automatic lock func-
tion
The parking brake will be set automati- cally under the following conditions:
●The driver does not operate the brake pedal.
●The driver’s door is not closed.
●The driver is not wearing the seat belt.
●The malfunction indicator lamp or
brake system warning light is not illu- minated.
■If “Parking Brake Temporarily Unavailable” is displayed on the
multi-information display
If the parking brake is operated repeat- edly over a short period of time, the sys-
tem may restrict operation to prevent overheating. If this happens, refrain from operating the parking brake. Normal
operation will return after about 1 min- ute.
■If “Parking Brake Unavailable” is displayed on the multi-information
display
Operate the parking brake switch. If the message does not disappear after oper-
ating the switch several times, the sys- tem may be malfunctioning. Have the vehicle inspected by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■Parking brake operation sound
When the parking brake operates, a
motor sound (whirring sound) may be heard. This does not indicate a malfunc-tion.
■Parking brake operation
●Depending on the power switch mode, the parking brake indicator and park-
ing brake light will turn on and stay on as described below:ON: Comes on until the parking brake
is released. Not in ON: Stays on for approximately 15 seconds.
●When the power switch is turned off with the parking brake set, the parking
brake indicator and parking brake light will stay on for about 15 seconds. This does not indicate a malfunction.
■When the parking brake switch
malfunctions
Automatic mode (automatic brake set- ting and releasing) will be turned on
automatically.
■Parking the vehicle
 P. 1 7 5
■Parking brake engaged warning buzzer
A buzzer will sound if the vehicle is driven with the parking brake engaged. “Parking Brake ON” is displayed on the
multi-information display. (with the vehi- cle reached a speed of 5 km/h [3 mph])
■If the brake system warning light comes on
 P. 4 3 5
■Usage in winter time
 P. 3 3 8
■When getting out of the vehicle with N range and parking brake
released
Turn auto mode OFF( P.201) and turn the engine OFF( P.189, 191).
Shift the shift lever from P to N ( P.197).

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4-2. Driving procedures
Driving
Turn the brake hold system on
The brake hold standby indicator
( gr e e n) co me s o n. W hi l e t he sy st e m
is holding the brake, the brake hold
operated indicator (yellow) comes
on.
■Brake hold system operating con-
ditions
The brake hold system cannot be turned on in the following conditions:
●The driver’s door is not closed.
●The driver is not wearing the seat belt.
●The parking brake is engaged.
If any of the conditions above are
WARNING
■When parking the vehicle
Do not leave a child in the vehicle
alone. The parking brake may be released unintentionally and there is the danger of the vehicle moving that
may lead to an accident resulting in death or serious injury.
■Parking brake switch
Do not set any objects near the park- ing brake switch.
Objects may interfere with the switch and may lead the parking brake to unexpectedly operate.
NOTICE
■When parking the vehicle
Before you leave the vehicle, set the
parking brake, shift the shift lever to P and make sure that the vehicle does not move.
■When the system malfunctions
Stop the vehicle in a safe place and
check the warning messages.
■When the parking brake cannot be released due to a malfunction
Driving the vehicle with the parking
brake set will lead to brake compo- nents overheating, which may affect braking performance and increase
brake wear.
Have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer immediately if this occurs.
Brake Hold
The brake hold system keeps
the brake applied when the
shift lever is in D, B or N with
the system on and the brake
pedal has been depressed to
stop the vehicle. The system
releases the brake when the
accelerator pedal is depressed
with the shift lever in D or B to
allow smooth start off.
Enabling the system

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4-5. Using the driving support systems
Driving
occur when the above systems are
operating. None of these indicates that a malfunction has occurred.• Vibrations may be felt through the
vehicle body and steering. • A motor sound may be heard also after the vehicle comes to a stop.
■ECB operating sound
ECB operating sound may be heard in the following cases, but it does not indi-cate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake
pedal is operated.
●Motor sound of the brake system
heard from the front part of the vehicle when the driver’s door is opened.
●Operating sound heard from the engine compartment when one or two minutes passed after the stop of the
hybrid system.
■Active Cornering Assist operation sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and vibra- tions may be generated from the brake system, but this is not a malfunction.
■EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be heard. This does not indicate a malfunc-
tion.
■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.
■Operating conditions of Active Cor-
nering Assist
The system operates when the following occurs.
●TRC/VSC can operate
●The driver is attempting to accelerate while turning
●The system detects that the vehicle is drifting to the outer side
●The brake pedal is released
■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 sys- tem off. The EPS system should return to normal within 10 minutes.
■Operating conditions of emergency
brake signal
When the following conditions are met, the emergency brake signal will oper-
ates:
●The emergency flashers are off
●Actual vehicle speed is over 55 km/h (35 mph)
●The system judges from the vehicle deceleration that it is a sudden brak-
ing operation.
■Automatic system cancelation of emergency brake signal
The emergency brake signal will be can-
celed in any of the following situations:
●The emergency flashers are turned
on.
●The system judges from the vehicle
deceleration that is not a sudden brak- ing operation.
■Secondary Collision Brake operat-ing cancelation
The system operates when the SRS air- bag sensor detects a collision while the