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448 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
■Tire pressure warning system certification
FCC ID: PAXPMV107J
FCC ID: PAXPMV108J
FCC ID: HYQ13BDE
IC ID: 3729A-PMV107J
IC ID: 3729A-PMV108J
IC ID: 1551A-13BDE
For vehicles sold in the U.S.A.
NOTE:
This device complies with Part 15 of the FCC Rules. Operation is sub-
ject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this de vice must accept any interference
received, including interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
For vehicles sold in Canada
NOTE:
Operation is subject to the followin g two conditions: (1) this device
may not cause interference, and (2) th is device must accept any inter-
ference, including interference that may cause undesired operation of
the device.
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449
4-3. Do-it-yourself maintenance
4
Maintenance and care
PRIUS_U (OM47668U) U.S.A.
CAUTION
■When inspecting or replacing tires
Observe the following precautions to
prevent accidents. Failure to do so
may cause damage to parts of the drive train, as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or
serious injury.
●Do not mix tires of different ma kes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed tire s (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and winter tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
■When initializing the tire pressure warning system
Do not push the tire pressure warnin g reset switch without first adjusting
the tire inflation pressure to the spec ified level. Otherwise, the tire pres-
sure warning light may not come on even if the tire inflation pressure is
low, or it may come on when the tire inflation pressure is actually normal.
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450 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
NOTICE
■Repairing or replacing tires, wheels and tire pressure warning
valves and transmitters
When removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact your Toyota dealer as the tire pressure
warning valve and transmitter may be damaged if not handled correctly.
■To avoid damaging the tire pressure warning valves and transmit-
ters
Do not use liquid sealants on flat tires.
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or pot-
holes.
These conditions may cause losses in tire inflation pressure, reducing
the cushioning ability of the tires. In addition driving on rough roads may
cause damage to the tires themselves, as well as the vehicle’s wheels
and body.
■Low profile tires (215/45R17 tires)
Low profile tires may cause greater damage than usual to the wheel
when receiving impact from the road surface. Therefore pay attention to
the following:
●Be sure to use proper tire inflation pressure. If tires are under-inflated,
they may be damaged more severely.
●Avoid pot holes, uneven pavemen t, curbs and other road hazards.
Failure to do so can lead to severe tire and wheel damage.
■If tire inflation pressures become low while driving
Do not continue driving, or your tires and/or wheels may be ruined.
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456 4-3. Do-it-yourself maintenance
PRIUS_U (OM47668U) U.S.A.
■When replacing wheels
The wheels of your Toyota are equipped with tire pressure warning
valves and transmitters that allow the tire pressure warning system to
provide advanced warning in the event of a loss in tire inflation pressure.
Whenever wheels are replaced, the tire pressure warning valves and
transmitters must be installed. (P. 442)
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may re sult in loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a
tubeless tire. Doing so may result in an accident, causing death or seri-
ous injury.
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because tire repair or replacement may affect the tire pressure warn-
ing valves and transmitters, make sure to have tires serviced by your
Toyota dealer or other qualified service shop. In addition, make sure to
purchase your tire pressure warning valves and transmitters at your
Toyota dealer.
●Ensure that only genuine Toyota wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly
with non-genuine wheels.
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When trouble arises5
485
PRIUS_U (OM47668U) U.S.A.
5-1. Essential informationEmergency flashers ......... 486
If your vehicle needs to
be towed ........................ 487
If you think something is
wrong ............................. 493
Event data recorder ......... 494
5-2. Steps to take in an
emergency
If a warning light turns on or
a warning buzzer
sounds... ........................ 496
If a warning message is
displayed ........................ 508
If you have a flat tire......... 524
If the hybrid system will
not start .......................... 538
If you lose your keys ........ 540
If the electronic key does
not operate properly....... 541
If the 12 volt battery is
discharged ..................... 543
If your vehicle
overheats ....................... 548
If the vehicle becomes
stuck .............................. 553
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496
PRIUS_U (OM47668U) U.S.A.
5-2. Steps to take in an emergency
If a war ning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle
may be dangerous.The following warning indicates a possible problem in the brake sys-
tem. Immediately stop the vehicle in a safe place and contact your
Toyota dealer.
*: Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph
(5 km/h) or more.
Warning lightWarning light/Details
(U.S.A.)
(Canada)
Brake system warning light and warning buzzer* (red
indicator)
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released, the system is operating normally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.
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5
When trouble arises
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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
Have the vehicle inspected immediately.Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
(U.S.A.)
(Canada) Malfunction indicator lamp
Malfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic hybrid system control system; or
• The electronic throttle control system.
SRS warning light Malfunction in:
• The SRS airbag system;
• Front passenger occupant classification system; or
• The seat belt pretensioner system.
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498 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Warning lightWarning light/Details
Automatic headlight leveling system warning light (if
equipped)
Indicates a malfunction in the automatic headlight level-
ing system.
(U.S.A.)
(Canada)
ABS warning lightMalfunction in:
• The ABS; or
• The brake assist system.
Brake system warning light (yellow indicator) Malfunction in the electronically controlled brake sys-
tem.
Electric power steering system warning light Malfunction in the EPS (Electric Power Steering).
Pre-collision system warn ing light (if equipped)
Indicates a malfunction in the pre-collision system.