2008 TOYOTA PRIUS flat tire

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4-2. Maintenance
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Maintenance and care
PRIUS_U_(L/O_0802)
Vehicle exterior
ItemsCheck points
Doors • Operate smoothly?
Engine hood • The lock system works properly?
Fluid leaks • Is there any leakage after parking?
Tire• Inflation pressure is correct?
• Tire surfaces not worn or damaged?
• Tires rotated according to the mainte-
nance schedule?
• Wheel nuts are not loose?
CAUTION
■ If the hybrid system is running
Turn off the hybrid system and ensure that there is adequate ventilation
before performing maintenance checks.

358 4-3. Do-it-yourself maintenance
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ItemsParts and tools
Engine oil level (P. 365)
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used only for adding engine oil)
Fuses (P. 398)• Fuse with same amperage rating
as original
Radiator and condenser (P. 373)
Tire inflation pressure ( P. 388)• Tire pressure gauge
• Compressed air source
Washer fluid (P. 378)
• Water washer fluid containing anti-
freeze (for winter use)
• Funnel

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4-3. Do-it-yourself maintenance
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Maintenance and care
PRIUS_U_(L/O_0802)
Tires
Replace or rotate tires in accordance with maintenance sched-
ules and treadwear.
■Checking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear
indicators is shown by the
“TWI” or “” marks, etc.,
molded on the sidewall of
each tire.
Check spare tire condition
and inflation pressure if not
rotated.
■ Tire rotation
Rotate the tires in the order
shown.
To equalize tire wear and
extend tire life, Toyota recom-
mends that tire rotation is
carried out at the same inter-
val as tire inspection.
Do not fail to initialize the tire
pressure warning system
after tire rotation.
■The tire pressure warning system
Your Toyota 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. 429)
The compact spare tire is not equipped with a tire pressure
warning valve and transmitter.
Front

380 4-3. Do-it-yourself maintenance
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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 sensor ID codes must be registered in the tire pressure
warning computer and tire pressure warning system must be initial-
ized.
Initializing the tire pressure warning system
■ The tire pressure warning system must be initialized in the fol-
lowing circumstances:
●When rotating the tires on vehicles differing with front and rear
tire inflation pressures.
● When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
● When changing the tire size.
When the tire pressure warning system is initialized, the current
tire inflation pressure is set as the pressure benchmark.

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4-3. Do-it-yourself maintenance
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Maintenance and care
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■
How to initialize the tire pressure warning system
Park the vehicle in safe place and turn the “POWER” switch to
OFF mode.
While the vehicle is moving, in itialization is not performed.
Adjust the tire inflation pressure to the specified cold tire infla-
tion pressure level. ( P. 470)
Make sure to adjust the tire pressure to the specified cold tire
inflation pressure level. The ti re pressure warning system will
operate based on this pressure level.
Turn the “POWER” switch to ON mode.
Push and hold the tire pressure
warning reset switch until the tire
pressure warning light blinks
slowly three times.
Wait for a few minutes with the ON mode, and then turn
“POWER” switch to OFF mode.
STEP1
STEP2
STEP3
SET
ITY43P018
STEP4
STEP5

382 4-3. Do-it-yourself maintenance
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■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits, cracks deep enough to
expose the fabric or bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the
size or location of a cut or other damage
If you are not sure, consult with your Toyota dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not
registered, the tire pre ssure warning system will not work properly. After
about 20 minutes, the tire pressure warning light blinks (comes on after
blinking for 1 minute) to indicate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even
if they have seldom or never been used or damage is not obvious.
■If the tread wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of snow tires is lost.
■Maximum load of tire
Check that the maximum load of the re placed tire is greater than 1/2 of
the Gross Axle Weight Ratings (GAWR) of either the front axle or the
rear axle, whichever is greater.
As for the maximum load of the tire, see the load limit at maximum cold
tire inflation pressure mentioned on the sidewall of the tire, and as for the
Gross Axle Weight Ratings (GAWR) , see the Certification Label.
(
P. 388, 474).

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4-3. Do-it-yourself maintenance
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Maintenance and care
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■Tire types
1 Summer tires
Summer tires are high-speed performance tires best suited to highway
driving under dry conditions. Since summer tires do not have the same
traction performance as snow tire s, summer tires are inadequate for
driving on snow-covered or icy roads. For driving on snow-covered
roads or icy roads, the use of snow tires is recommended. When
installing snow tires, be sure to replace all four tires.
2 All season tires All season tires are designed to provide better traction in snow and to
be adequate for driving in most winter conditions, as well as for use
year round. All season tires, however, do not have adequate traction
performance compared with snow tires in heavy or loose snow. Also,
all season tires fall short in acceleration and handling performance
compared with summer tires in highway driving.
3Snow tires
For driving on snow-covered roads or icy roads, we recommend using
snow tires. If you need snow tires, select tires of the same size, con-
struction and load capacity as the or iginally installed tires. Since your
vehicle has radial tires as original equipment, make sure your snow
tires also have radial construction. Do not install studded tires without
first checking local regulations for possible restriction. Snow tires
should be installed on all wheels. ( P. 177)
■Initializing the tire pressure warning system
Initialize the tires with the tire inflation pressure adjusted to the specified
level.

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■If you push the tire pressure reset switch accidentally
If initialization is performed, adjust the tire in flation pressure to the speci-
fied level and initializ e the system again.
■When the initialization of the tire pressure warning system has
failed
Initialization can be comp leted in a few minutes. However, in the follow-
ing cases, the settings have not b een recorded and the system will not
operate properly. If repeated attempts to record tire inflation pressure
settings are unsuccessful, have the vehicle inspected by your Toyota
dealer.
●When operating the tire pressure warning reset switch, the warning
light does not flash (The tires cann ot be initializes whiled the vehicle
is moving.).
●After driving for a certain period of time since the initialization has
been completed, the warning light flashes.
■Routine tire inflation pressure checks
The tire pressure warning system doe s not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.