2012 TOYOTA PRIUS V flat tire

398
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
Tire inflation pressure
■Tire inflation pressure
The recommended cold tire inflation pressure and tire size are
displayed on the tire and loading information label. ( P. 504)

399
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
.
■
Inspection and adjustment procedure
Tire valve
Tire pressure gauge
Remove the tire valve cap.
Press the tip of the tire pressure gauge onto the tire valve.
Read the pressure using the gauge gradations.
If the tire inflation pressure is not at the recommended
level, adjust the pressure.
If you add too much air, pres s the center of the valve to
deflate.
After completing the tire inflation pressure measurement
and adjustment, apply soapy water to the valve and check
for leakage.
Put the tire valve cap back on.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 5
STEP 6

400 4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
■Tire inflation pressure check interval
You should check tire inflation pressure every two weeks, or at least
once a month.
Do not forget to check the spare.
■Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure ma y result in the following:
●Reduced fuel efficiency
●Reduced driving comfort and tire life
●Reduced safety
●Damage to the drive train
If a tire needs frequent inflating, have it checked by your Toyota dealer.
■Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following:
●Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been
driven for more than 1 mile or 1.5 km, you will get an accurate cold
tire inflation pressure reading.
●Always use a tire pressure gauge.
The appearance of the tire can be mi sleading. In addition, tire infla-
tion pressure that is even just a few pounds off can affect ride quality
and handling.
●Do not reduce tire inflation pressure after driving. It is normal for tire
inflation pressure to be higher after driving.
●Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle
is balanced.

401
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
CAUTION
■Proper inflation is critical
to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions
may occur and result in an accident causing death or serious injury:
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resu lting from overheated tires
●Poor sealing of the tire bead
●Wheel deformation and/or tire separation
●A greater possibility of tire damage from road hazards
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to put the tire valve caps back on.
Without the valve caps, dirt or mo isture could get into the valve and
cause air leakage, which could result in an accident. If the caps are lost,
replace them as soon as possible.

403
4-3. Do-it-yourself maintenance
PRIUS v_U (OM47784U)
4
Maintenance and care
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning
valves and transmitters that allow the tire pressure warning system to
provide advance warning in the event of a loss in tire inflation pressure.
Whenever wheels are replaced, tire pressure warning valves and trans-
mitters must be installed. (
P. 390)
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may resu lt in a 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.
■When installing the wheel nuts
●Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.
●Be sure to install the wheel nuts with
the tapered ends facing inward.
Installing the nuts with the tapered
ends facing outward can cause the
wheel to break and eventually cause
the wheel to come off while driving,
which could lead to an accident
resulting in death or serious injury.Tapered
portion

When trouble arises5
435
PRIUS v_U (OM47784U)
5-1. Essential informationEmergency flashers ......... 436
If your vehicle needs to be towed ............................. 437
If you think something is wrong ............................. 443
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds ........................... 444
If you have a flat tire......... 462
If the hybrid system will not start .......................... 476
If you lose your keys ........ 478
If the electronic key does not operate properly....... 479
If the 12-volt battery is discharged ..................... 481
If your vehicle overheats ....................... 487
If the vehicle becomes stuck .............................. 491
If your vehicle has to be stopped in an
emergency ..................... 493

5
When trouble arises
443
5-1. Essential information
PRIUS v_U (OM47784U)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■ Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air cond itioning after use is normal.)
● Flat-looking tires or uneven tire wear
● High engine coolant temperatur e warning light flashes or
comes on
■ Audible symptoms
●Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the hybrid system
■ Operational symptoms
●Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, s pongy feeling, pedal almost
touches the floor

5
When trouble arises
451
5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
Warning lightWarning light/DetailsCorrection procedure
Low fuel level warning light Indicates remaining fuel is
approximately 1.6 gal. (6.0 L,
1.3 Imp.gal.) or less Refuel the vehicle.
Seat belt reminder light (warn-
ing buzzer)
*3
Warns the driver and/or front
passenger to fasten their seat
belts. Fasten the seat belt.
If the front passen-
ger’s seat is occu-
pied, the front
passenger’s seat
belt also needs to
be fastened to
make the reminder
light (warning
buzzer) off.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure
such as
• Natural causes ( P. 453)
• Flat tire ( P. 462) Adjust the tire infla-
tion pressure to the
specified level.
The light will turn
off after a few min-
utes. In case the
light does not turn
off even if the tire
inflation pressure
is adjusted, have
the system
checked by your
Toyota dealer.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pres-
sure warning system
(  P. 455) Have the system
checked by your
Toyota dealer.