Page 392 of 509

3927-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
Driver’s and front passenger’s seat belt reminder light
(warning buzzer)
*4
Warns the driver and/or front passenger to fasten their
seat belts
→ Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (warning buzzer) turn off.
Rear passengers’ seat belt reminder lights (warning
buzzer)
*4
Warns the rear passengers to fasten their seat belts
→ Fasten the seat belt.
(If equipped)
Master warning light
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
→ P. 400
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( →P. 394)
• Flat tire ( →P. 417, 431)
→ 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.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system ( →P. 395)
→ Have the system checked by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional.
Warning lightWarning light/Details/Actions
Page 394 of 509

3947-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■ If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empt y, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional
as soon as possible.
■ When the tire pressure warning light comes on
Inspect the appearance of the tire to check that the tire is not punctured.
If the tire is punctured: →P. 417, 431
If the tire is not punctured:
Carry out the following procedure after the tire temperature has lowered suffi-
ciently.
● Check the tire inflation pressure and adjust to the appropriate level.
● If the warning light does not go out even after several minutes, check that
the tire inflation pressure is at the specified level and carry out initialization.
(→ P. 343)
The warning light may come on again if the above operations are conducted
without first allowing the tire temperature to lower sufficiently.
■ The tire pressure warning light may come on due to natural causes
The tire pressure warning light may turn on due to natural causes such as
natural air leaks or tire inflation pressure changes caused by temperature. In
this case, adjusting the tire inflation pressure will turn off the warning light
(after a few minutes).
■ When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve and
transmitter. If a tire goes flat, the tire pressure warning light will not turn off
even though the flat tire has been replaced with the spare tire. Replace the
spare tire with the repaired tire and adjus t the tire inflation pressure. The tire
pressure warning light will go off after a few minutes.
Page 396 of 509

3967-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
WARNING
■ If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped profes-
sional. The vehicle will become extremely unstable during braking, and the
ABS system may fail, which could cause an accident resulting in death or
serious injury.
■ When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
When steering wheel operations are heav ier than usually, grip the steering
wheel firmly and operate it using more force than usual.
■ If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a
loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire infla-
tion pressure immediately.
● Vehicles with spare tire: If the tire pressure warning light comes on even
after tire inflation pressure adjustment, it is probable that you have a flat
tire. Check the tires. If a tire is fl at, change it with the spare tire and have
the flat tire repaired by the nearest any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
● Vehicles with emergency tire puncture re pair kit: If the tire pressure warn-
ing light comes on even after tire inflation pressure adjustment, it is proba-
ble that you have a flat tire. Check the tires. If a tire is flat, repair the flat tire
by using emergency tire puncture repair kit.
● Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■ If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pres-
sure warning system may not operate properly.
Page 427 of 509

4277-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
● Make sure to check the tire inflation pressure of the compact spare tire.
(→ P. 473)
■ When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning valve
and transmitter, low inflation pressure of the spare tire will not be indicated by
the tire pressure warning system. Also, if you replace the compact spare tire
after the tire pressure warning light comes on, the light remains on.
■ When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire com-
pared to when driving with standard tires.
■ If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle. Per-
form the following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehicle.
Fit tire chains to the front tires.
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Page 438 of 509
4387-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
Connect the bottle to the com-
pressor.
As shown in the illustration, insert
the bottle vertically into the com-
pressor to connect making sure
that the claw on the bottle’s neck is
hooked onto the cutout of the com-
pressor case.
Check the specified tire inflation pressure.
Tire inflation pressure is specified on the label on the driver’s side pillar as
shown. (→P. 473)
Start the hybrid system. ( →P. 207)
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XLeft-hand drive vehicles XRight-hand drive vehicles
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Page 439 of 509

4397-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
To inject the sealant and inflate
the tire, turn the compressor
switch on.
Inflate the tire until the specified
air pressure is reached.The sealant will be injected
and the pressure will surge,
and then gradually decrease.
The air pressure gauge will
display the actual tire infla-
tion pressure about 1 minute
(15 minutes at low tempera-
ture) after the switch is
turned on.
Inject to specified air pres-
sure.• Turn the compressor
switch off and then check
the tire inflation pressure.
Being careful not to over
inflate, check and repeat
the inflation procedure
until the specified tire infla-
tion pressure is reached.
• If the tire inflation pressure is still lower than the specified point
after inflation for 35 minutes with the switch on, the tire is too
damaged to be repaired. Turn the compressor switch off and
contact any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional.
• If the tire inflation pressure exceeds the specified air pressure, let out some air to adjust the tire inflation pressure.
(→ P. 442, 473)13
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Page 441 of 509

4417-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
Turn the compressor switch on
and wait for an approximately 5
seconds, and then turn it off.
Check the tire inflation pres-
sure.If the tire inflation pressure is
under 130 kPa (1.3 kgf/cm
2
or bar, 19 psi): The puncture
cannot be repaired. Contact
any authorized Toyota dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
If the tire inflation pressure is 130 kPa (1.3 kgf/cm
2 or bar, 19 psi)
or higher, but less than the specified air pressure: Proceed to
step .
If the tire inflation pressure is the specified air pressure ( →P. 473):
Proceed to step .
Turn the compressor switch on to inflate the tire until the specified
air pressure is reached. Drive for about 5 km (3 miles) and then
perform step .
Attach the air release cap to the
end of the hose.
If the air release cap is not
attached, the sealant may leak and
the vehicle may get dirty.
Store the bottle in the luggage compartment while it is connected to
the compressor.
Taking precautions to avoid sudden braking, sudden acceleration
and sharp turns, drive carefully at under 80 km/h (50 mph) to the
nearest authorized Toyota dealer or repairer, or another duly quali-
fied and equipped professional for tire repair or replacement.
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Page 442 of 509

4427-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
■If the tire is inflated to mo re than the specified air pressure
Disconnect the hose from the valve.
Disconnect the hose from the valve, remove the air release cap from the
hose and then reconnect the hose.
Turn the compressor switch on and wait for several seconds, and then turn
it off. Check that the air pressure indicator shows the specified air pressure.
If the air pressure is under the designated pressure, turn the compressor
switch on again and repeat the inflation procedure until the specified air
pressure is reached.
■ After a tire is repaired with the emergency tire puncture repair kit
●The tire pressure warning valve and transmitter should be replaced.
● Even if the tire inflation pressure is at the recommended level, the tire pres-
sure warning light may come on/flash.
■ Note for checking the emergency tire puncture repair kit
Check the sealant expiry date occasionally.
The expiry date is shown on the bottle. Do not use sealant whose expiry date
has already passed. Otherwise, repairs conducted using the emergency tire
puncture repair kit may not be performed properly.Install the air release cap to the end of
the hose and push the protrusion on the
air release cap into the tire valve to let
some air out.
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