Page 387 of 492
3878-1. Essential information
8
When trouble arises
YARIS_HV_EE_OM52F30E
If your vehicle has to be stopped in an
emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift lever to N.
XIf the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.
XIf the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
Vehicles without a smart entry
& start system: Stop the hybrid
system by turning the power
switch to the “ACC” position.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, stop the vehicle using the follow-
ing procedure:
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Page 388 of 492
3888-1. Essential information
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Vehicles with a smart entry &
start system: To stop the hybrid
system, press and hold the
power switch for 3 consecutive
seconds or more, or press it
briefly 3 times or more in suc-
cession.
Stop the vehicle in a safe place by the road.
Press and hold for 3 seconds or
more, or press briefly 3 times or more
4
WARNING
■ If the hybrid system has to be turned off while driving
● Power assist for the steering wheel will be lost, making the steering wheel
heavier to turn. Decelerate as much as possible before turning off the
hybrid system.
● Vehicles without a smart entry & start system: Never attempt to remove
the key, as doing so will lock the steering wheel.
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Page 400 of 492

4008-2. Steps to take in an emergency
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*1: Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately
5 km/h (3 mph) or more.
*2: If equipped
*3: Open door warning buzzer:
A buzzer will sound if the vehicle reaches a speed of 5 km/h (3 mph) or
more with any door open.
(On the center panel)
Rear passengers’ seat belt reminder lights
(warning buzzer)*4
Warns the rear passengers to fasten their seat belts.
→ Fasten the seat belt.
Tire pressure warning light*2
When the light comes on: Low tire inflation pressure such
as
• Natural causes ( →P. 402)
• Flat tire ( →P. 407, 422)
→ 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 dealer or repairer, or another duly
qualified and equipped professional.
Hybrid system overheat warning light (warning buzzer)
Indicates that the hybrid system has overheated. This light
may come on when driving under severe operating condi-
tions. (For example, when driving up a long steep hill.)
→ Stop and check. (→P. 448)
P position request warning light
An attempt was made to start the hybrid system.
→ Shift the shift lever to P.
P position request warning light (warning buzzer)
• Indicates that the driver’s door was opened with the shift
lever in N, D or B.
→ Shift the shift lever to P.
• Indicates that the hybrid battery (traction battery) power
has dropped because a long period of time has elapsed
after shifting the shift lever to N.
→ Shift the shift lever to P and restart the hybrid system
when starting the vehicle.
Warning lightWarning light/Details/Actions
Page 442 of 492

4428-2. Steps to take in an emergency
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Ensure that the shift lever is in P and depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
power switch.
The power switch will turn to ON
mode.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the elec-
tronic key.
When the smart entry & start system is deactivated in customization set-
ting, the power switch will turn to ACCESSORY mode.
Firmly depress the brake pedal and check that (green)
turns on.
Press the power switch.
In the event that the hybrid system still cannot be operated, contact
any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
■ Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when
stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
( →P. 361)
■ Changing power switch modes
Release the brake pedal and press the power switch in step above.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( →P. 183)
■ When the electronic key does not work properly
Make sure that the smart entry & start system has not been deactivated in the
customization setting. If it is off, turn the function on.
(Customizable features: →P. 467)
Starting the hybrid system
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4498-2. Steps to take in an emergency
8
When trouble arises
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The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air 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 condi tioning 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 condi-
tioning system on and off repeatedly.
(The fan may not operate in freezing temperatures.)
If the fan is not operating:
Stop the hybrid system immediately and contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped
professional.
If the fan is operating:
Have the vehicle inspected at the nearest authorized Toyota
dealer or repairer, or another duly qualified and equipped profes-
sional.
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4518-2. Steps to take in an emergency
8
When trouble arises
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Start the hybrid system and check for the hybrid system overheat
warning light.
If the warning light does not go off:
Stop the hybrid system and contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
If the warning light goes off:
Have the vehicle inspected at the nearest authorized Toyota dealer
or repairer, or another duly qualified and equipped professional.
WARNING
■ To prevent an accident or injury when inspecting under the hood of
your vehicle
● 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, caus-
ing serious injuries such as burns.
● Check that the “READY” indicator is off.
● On hybrid vehicles, the gasoline engine may automatically start, or the
cooling fan may suddenly operate even if the gasoline engine stops. Do
not touch or approach rotating parts such as the fan, which may lead to fin-
gers or clothing (especially a tie, a scarf or a muffler) getting caught,
resulting in serious injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injuries, such as burns, may result from hot coolant and steam
released under pressure.
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Page 453 of 492
4538-2. Steps to take in an emergency
8
When trouble arises
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If the vehicle becomes stuck
Stop the hybrid system. Set the parking brake and shift the shift
lever to P.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the front wheels
to help provide traction.
Restart the hybrid system.
Shift the shift lever to D or R and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.
■ When it is difficult to free the vehicle
■ Emergency hooks
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press the switch to turn off TRC.
When your vehicle becomes stuck and
cannot move, the emergency hooks are
used for another vehicle to pull your vehi-
cle out in an emergency.
Your vehicle is not designed to tow
another vehicle.
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Page 476 of 492

476What to do if... (Troubleshooting)
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●Vehicles without a smart entry & start system:
It is locked to prevent theft of the vehicle if the key is pulled from the power
switch. ( →P. 180)
●Vehicles with a smart entry & start system:
It is locked automatically to prevent theft of the vehicle. ( →P. 185)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( →P. 162)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a period of
time. ( →P. 184)
●The seat belt reminder light is flashing
Is the driver wearing the seat belts? ( →P. 399)
●The parking brake indicator is on
Is the parking brake released? ( →P. 396)
Depending on the situation, other types of warning buzzer may also sound.
( →P. 396)
●When a warning light turns on, refer to P. 396.
The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically
(vehicles with a smart entry & start system)
A warning buzzer sounds during driving
A warning light turns on