spare tire TOYOTA PRIUS 2012 3.G Owners Manual

292 2-4. Using other driving systems
CAUTION
■Turn the LKA off while driving in any of the following conditions
Do not use LKA in any of the following situations.
Otherwise, the system may not function correctly and could result in an acci-
dent.
● When driving with snow tires, snow chains, a spare tire, or similar equip-
ment.
● When driving with non-standard parts or aftermarket equipment installed.
(including modified tires and suspensions, etc.)
● When there are objects or structures along the roadside that might be mis-
interpreted as lane markers. (such as guardrails, curb, reflector posts, etc.)
● When there are wheel ruts, icy trademar ks, etc. or if snow remains on the
road surface.
● When there are shadows on the road r unning parallel with lane markers,
or if a shadow covers the lane markers.
● When there are visible lines on the pavement from road repairs, or if the
remains of old lane markers are still visible on the road.
● When driving on slippery roads, such as those covered with rain, ice or
snow.
● When driving in a lane other than the driving or passing lanes on a freeway
or highway.
● When driving on a road with lane closures due to maintenance, or when
driving in a temporary lane.
● When driving on winding roads or roads that are rough or uneven.

437
4-3. Do-it-yourself maintenance
4
Maintenance and care
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 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.
ITO43P115
Front

438 4-3. Do-it-yourself maintenance
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. 440)
■ 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. 499)
The compact spare tire is not equipped with a tire pressure
warning valve and transmitter.

449
4-3. Do-it-yourself maintenance
4
Maintenance and care
■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 ti
re 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.

5
When trouble arises
501
5-2. Steps to take in an emergency
■
Electric power steering system warning light
When the 12-volt battery charge becomes insufficient or the voltage tempo-
rarily drops, the electric power steering system warning light may come on.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
Pushing the tire pressure warning re set switch will not turn off the tire
pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflat ion pressure changes caused by tem-
perature. 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 re paired tire and adjust the tire infla-
tion pressure. The tire pressure wa rning light will go off after a few min-
utes.

504 5-2. Steps to take in an emergency
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.)

5
When trouble arises
523
5-2. Steps to take in an emergency
If you have a flat tire
Remove the flat tire and replace it with the spare 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
*: The shape may differ depending on the grade, etc.
Center deck board*
Wheel nut wrench
Jack handle
Spare tire Towing
eyelet
Jack
Center
auxiliary box
*

5
When trouble arises
525
5-2. Steps to take in an emergency
Remove the jack handle.
Unhook the tightening strap.
After storing the jack, make
sure it is securely held by the
tightening strap.
Taking out the spare tire
Loosen the center fastener that
secures the spare tire.
ITI52P200a
STEP 2
CAUTION
■Service plug
Be careful not to hit the service plug when loading or unloading the tool
holder or the spare tire. (P. 3 6 )

528 5-2. Steps to take in an emergency
Remove all the wheel nuts and
the tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.
Installing the spare tireRemove 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, and the tire may
come off the vehicle.
Install the tire and loosely tighten each wheel nut by hand by
approximately the same amount.
ITO52P114
STEP 6
STEP 1
STEP 2

5
When trouble arises
529
5-2. Steps to take in an emergency
Replacing an aluminum wheel
with 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.
Tapered portion
Disc wheel
seat
Disc wheel
Washer