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390 4-3. Do-it-yourself maintenance
PRIUS v_OM_OM47840U_(U)
Installing tire pressure warning valves and transmittersWhen replacing tires or wheels, tire pressure warning valves and
transmitters must also be installed.
When new tire pressure warning valves and transmitters are
installed, new ID codes must be regi stered in the tire pressure warn-
ing computer and the tire pressure warning system must be initial-
ized. Have tire pressure warning valve and transmitter ID codes
registered by your Toyota dealer. ( P. 392)
■ Tire pressure warning system
Your vehicle is equipped with a tire pressure warning system
that uses tire pressure warning valves and transmitters to detect
low tire inflation pressure before serious problems arise.
( P. 451)
The compact spare tire is not equipped with a tire pressure
warning valve and transmitter.
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456 5-2. Steps to take in an emergency
PRIUS v_OM_OM47840U_(U)
CAUTION
■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
inflation pressure immediately.
●If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is pr obable that you have a flat tire. Check the tires.
If a tire is flat, change it with th e spare tire and have the flat tire
repaired by the nearest Toyota dealer.
●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 syste m may not activate immediately.
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine the
proper tire inflation pr essure for those tires.)
Page 462 of 568
462
5-2. Steps to take in an emergency
PRIUS v_OM_OM47840U_(U)
If you have a flat tire
Remove the flat tire and replace it with the spare tire provided.
■Before jacking up the vehicle
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift position to P.
● Stop the hybrid system.
● Turn on the emergency flashers.
■ Location of the spare tire, jack and tools
Center auxiliary
boxes
Jack Spa r e t ire
Jack handle
Towing eyelet Wheel nut
wrench
Left side
deck board
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467
5-2. Steps to take in an emergency
PRIUS v_OM_OM47840U_(U)
Installing the spare tire
Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is
in motion, causing the tire to
come off.
Install the tire and loosely tighten each wheel nut by hand by
approximately the same amount.
Replacing a steel wheel with a steel wheel (including a compact
spare tire) Tighten the nuts until the tapered
portion comes into loose contact
with the disc wheel seat.
STEP 1
STEP 2
Tapered portion
Disc wheel
seat
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468 5-2. Steps to take in an emergency
PRIUS v_OM_OM47840U_(U)
Replacing an aluminum wheel with a steel wheel (including a
compact spare tire)
Tighten the nuts until the tapered
portion comes into loose contact
with the disc wheel seat.
Replacing an aluminum wheel with an aluminum wheel
Turn the nut washers until they
come into contact with the disc
wheel.
Lower the vehicle.
Tapered portion
Disc wheel
seat
Disc wheel
Washer
STEP 3
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469
5-2. Steps to take in an emergency
PRIUS v_OM_OM47840U_(U)
Firmly tighten each wheel nut
two or three times in the order
shown in the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
For vehicles with 16 inch wheels,
reinstall the wheel ornament.
*
Align the cutout of the wheel
ornament with the valve stem
as shown.
*: The wheel ornament cannot
be installed on the compact
spare tire.
Stow the flat tire, tire jack and all tools.
STEP 4
STEP 5
STEP 6
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471
5-2. Steps to take in an emergency
PRIUS v_OM_OM47840U_(U)
Pass the belt through the buckle
and secure the tire firmly. Check
that the belt is securely held by
the buckle.
The belt cannot be fastened
securely if the buckle is facing
the wrong direction.
STEP 4
■The compact spare tire
●The compact spare tire is identifi
ed 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. 504)
■After completing the tire change
The tire pressure warning system must be reset. (P. 391)
■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.
■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.
Perform 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.
STEP 1
STEP 2
STEP 3
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5-2. Steps to take in an emergency
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NOTICE
■Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair.
■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 drivin
g 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.
■When replacing the tires
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 damage to the tire pressure warning valves and transmit-
ters
When a tire is repaired with liquid sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sealant is
used, contact your Toyota dealer or other qualified service shop as soon
as possible. Make sure to replace the tire pressure warning valve and
transmitter when replacing the tire. ( P. 390)