Toyota Prius V (2018 year). Instruction - part 31
8-2. Steps to take in an emergency
517
WARNING
■When using the compact spare tire
● Remember that the spare tire provided is specifically designed for use
with your vehicle. Do not use your spare tire on another vehicle.
● Do not use more than one compact spare tire simultaneously.
● Replace the spare tire with a standard tire as soon as possible.
● Avoid sudden acceleration, abrupt steering, sudden braking and shift-
ing operations that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following sys-
tems may not operate correctly:
• ABS & Brake assist
• Rear view monitor system
• VSC
• LDA (Lane Departure Alert with
• TRAC
steering control)
• Dynamic radar cruise control
• Navigation system*
• Pre-collision system
• Automatic High beam
• EPS
*: If equipped
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Fail-
ure to observe this precaution may lead to an accident causing death or
serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in
their storage location to reduce the possibility of personal injury during a
collision or sudden braking.
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518
8-2. Steps to take in an emergency
NOTICE
■ Be careful when driving over bumps with the compact spare tire
installed on the vehicle.
The vehicle becomes lower when driving with the compact spare tire
compared to when driving with standard tires. Be careful when driving
over uneven road surfaces.
■ Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving
performance.
8-2. Steps to take in an emergency
519
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 168)
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly.* (P. 521)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (P. 80)
● There may be a malfunction in the immobilizer system.* (P. 83)
● There may be a malfunction in the shift control system.*
(P. 171, 489)
● The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. (P. 520)
*: It may not be possible to shift the shift position other than P.
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
One of the following may be the cause of the problem:
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● The 12-volt battery may be discharged. (P. 523)
● The 12-volt battery terminal connections may be loose or corroded.
(P. 427)
520
8-2. Steps to take in an emergency
The interior lights and headlights do not turn on, or the horn
does not sound.
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. (P. 523)
● One or both of the 12-volt battery terminals may be disconnected.
(P. 427)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
Emergency start function
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the power
switch is functioning normally.
Do not use this starting procedure except in cases of emergency.
1
Set the parking brake.
2
Shift the shift position to P.
3
Turn the power switch to ACCESSORY mode.
4
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
8-2. Steps to take in an emergency
521
If the electronic key does not operate
properly
If communication between the electronic key and vehicle is
interrupted
(P. 126) or the electronic key cannot be used
because the battery is depleted, the smart key system and
wireless remote control cannot be used. In such cases, the
doors can be opened and the hybrid system can be started by
following the procedure below.
Locking and unlocking the doors
Use the mechanical key (P. 111)
in order to perform the following
operations:
1
Locks all the doors
2
Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within
3 seconds
unlocks the other doors.
Starting the hybrid system
1
Ensure that the shift position is in P and depress the brake pedal.
2
Touch the Toyota emblem side
of the electronic key to the
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power switch.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON mode.
When the smart key system is
deactivated in customization set-
ting, the power switch will turn to
ACCESSORY mode.
3
Firmly depress the brake pedal and check that
is shown on
the multi-information display.
522
8-2. Steps to take in an emergency
4
Press the power switch.
In the event that the hybrid system still cannot be operated, contact
your Toyota dealer.
■Stopping the hybrid system
Set the parking brake, shift the shift position 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. 449)
■Changing power switch modes
Release the brake pedal and press the power switch in step
3
above.
The hybrid system does not start and modes will be changed each time the
switch is pressed. (P. 169)
■ When the electronic key does not work properly
● Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features: P. 559)
● Check if battery-saving mode is set. If it is set, cancel the function.
(P. 126)
8-2. Steps to take in an emergency
523
If the 12-volt battery is discharged
The following procedures may be used to start the hybrid sys-
tem if the vehicle’s 12-volt battery is discharged.
You can also call your Toyota dealer or a qualified repair shop.
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.
1
Open the hood (P. 409) and
fuse box cover.
When closing, first hook the lid
onto the two rear tabs.
2
Open the exclusive jump start-
ing terminal cover.
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524
8-2. Steps to take in an emergency
3
Connect the jumper cables according to the following procedure:
1
Connect a positive jumper cable clamp to the exclusive jump
starting terminal on your vehicle.
Connect the clamp on the other end of the positive cable to the
2
positive (+) battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery termi-
3
nal on the second vehicle.
Connect the clamp at the other end of the negative cable to a
4
solid, stationary, unpainted metallic point away from the exclusive
jump starting terminal and any moving parts, as shown in the
illustration.
Start the engine of the second vehicle. Increase the engine speed
4
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
Maintain the engine speed of the second vehicle and start the
5
hybrid system of your vehicle by turning the power switch to ON
mode.
8-2. Steps to take in an emergency
525
6
Make sure the “READY” indicator comes on. If the indicator light
does not come on, contact your Toyota dealer.
Once the hybrid system has started, remove the jumper cables in
7
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the
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fuse box cover to its original position.
When installing, first hook the fuse box cover onto the two rear tabs.
Once the hybrid system starts, have the vehicle inspected at your
Toyota dealer as soon as possible.
■ Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
● Turn off the headlights and the audio system while the hybrid system is off.
● 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 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
■ When recharging or replacing the 12-volt battery
● In some cases, it may not be possible to unlock the doors using the smart
key system when the 12-volt battery is discharged. Use the wireless remote
control or the mechanical key to lock or unlock the doors.
●The hybrid system may not start on the first attempt after the 12-volt battery
8
has recharged but will start normally after the second attempt. This is not a
malfunction.
●The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off. If you are unsure what mode the power switch was
in before the 12-volt battery discharged, be especially careful when recon-
necting the 12-volt battery.
●If the 12-volt battery discharges while the shift position is in P, it may not be
possible to shift the shift position to other positions. In this case, the vehicle
cannot be towed without lifting both front wheels because the front wheels
will be locked. (P. 472)
● When the 12-volt battery is reconnected, start the hybrid system and con-
firm that the shift position can be changed to each position using the shift
position indicator.
526
8-2. Steps to take in an emergency
WARNING
■ Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the 12-volt 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 intended 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 into contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the 12-volt battery.
■ 12-volt battery precautions
The 12-volt battery contains poisonous and corrosive acidic electrolyte,
while related parts contain lead and lead compounds. Observe the following
precautions when handling the 12-volt battery:
● When working with the 12-volt battery, always wear safety glasses and
take care not to allow any battery fluids (acid) to come into contact with
skin, clothing or the vehicle body.
● Do not lean over the 12-volt 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 medical attention
can be received.
● Always wash your hands after handling the 12-volt battery support, termi-
nals, and other battery-related parts.
● Do not allow children near the 12-volt battery.
■ After recharging the 12-volt battery
Have the 12-volt battery inspected at your Toyota dealer as soon as possi-
ble.
If the 12-volt battery is deteriorating, continued use may cause the 12-volt
battery to emit a malodorous gas, which may be detrimental to the health of
passengers.
■ When replacing the 12-volt battery
P. 429
8-2. Steps to take in an emergency
527
NOTICE
■ When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans, etc.
■ To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-volt
battery from another vehicle in an emergency. It cannot be used to jump
start another vehicle.
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528
8-2. Steps to take in an emergency
If your vehicle overheats
The following may indicate that your vehicle is overheating.
● The high coolant temperature warning light (P. 480) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
● The warning message indicating overheat is shown on the multi-
information display. (P. 492)
● Steam comes out from under the hood.
Correction procedures
■ If the high coolant temperature warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air conditioning
1
system, and then stop the hybrid system.
2
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
3
hoses and radiator core (radiator) for any leaks.
1
Radiator
2
Cooling fans
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
8-2. Steps to take in an emergency
529
4
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.
1
Reservoir
2
“FULL” line
3
“LOW” line
Add coolant if necessary.
5
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system on to
6
check that the radiator cooling fans operate and to check for
coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is difficult to check these, turn the air con-
ditioning system on and off repeatedly. (The fans may not operate in
freezing temperatures.)
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If the fans are not operating:
7
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Toyota dealer.
530
8-2. Steps to take in an emergency
■ If the hybrid system overheat warning light comes on or the
warning message indicating overheat is shown on the multi-
information display
1
Stop the vehicle in a safe place.
2
Stop the hybrid system and carefully lift the hood.
3
After the hybrid system has cooled down, inspect the hoses and
radiator core (radiator) for any leaks.
1
Radiator
2
Cooling fans
If a large amount of coolant
leaks, immediately contact
your Toyota dealer.
4
The coolant level is satisfactory if it is between the “F” and “L”
lines on the reservoir.
1
Reservoir
2
“F” line
3
“L” line
Add coolant if necessary.
5
Water can be used in an emer-
gency if coolant is unavailable.
If water was added in an emer-
gency, have the vehicle
inspected at your Toyota dealer
as soon as possible.
8-2. Steps to take in an emergency
531
After stopping the hybrid system and waiting for 5 minutes or
6
more, start the hybrid system and check for the instrument clus-
ter or multi-information display.
If the hybrid system overheat warning light does not turn off or
the message does not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the hybrid system overheat warning light does not come on or
the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the warning light comes on again frequently or the message
appears again frequently, contact your Toyota dealer.
WARNING
■ When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● 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.
● After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally 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 fingers 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.
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High temperature steam or coolant could spray out.
532
8-2. Steps to take in an emergency
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently.
Adding cool coolant to a hot hybrid system too quickly can cause damage to
the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.
8-2. Steps to take in an emergency
533
If the vehicle becomes stuck
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
1
Set the parking brake and shift the shift position to P. Stop the
hybrid system.
2
Remove the mud, snow or sand from around the stuck tire.
3
Place wood, stones or some other material under the tires to help
provide traction.
4
Restart the hybrid system.
5
Shift the shift position to D or R, release the parking brake and
carefully apply the accelerator to free the vehicle.
■ When it is difficult to free the vehicle
Press
to turn off TRAC. (P. 254)
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