TOYOTA PRIUS 2010 3.G Owners Manual

5
When trouble arises
531
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Stowing the flat tire
Vehicles with a 17 inch wheel:
Before stowing the flat tire,
remove the center wheel orna-
ment by pushing from the
reverse side.
Place the flat tire on the deck
board, and pass the belt through
the lower-right cargo hook and
then through the hole in the cen-
ter of the tire.
Pass the belt through the lower-
left cargo hook.
ITO52P123
STEP1
STEP2
STEP3

532 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.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.
STEP4
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE
ONLY” on the tire sidewall.

Use the compact spare tire temporarily only in an emergency.
●Make sure to chec k the tire inflation pressu re of the compact spare
tire. ( P. 565)
■Tread life
The compact spare tire can be used many times, if necessary. It has
tread life of up to 3000 miles (4800 km) depending on road conditions
and your driving habits. When treadwear indicators appear on the tire,
replace the tire. ( P. 441)

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When trouble arises
533
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
■
When using the compact spare tire
As the compact spare tire is not equipped with the tire pressure warning
valve and transmitter, low inflation pressure of the spare tire will not be
warned. Also, if you replace the compac t 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 the rear of the vehicle. Perform the fol-
lowing steps and fit tire chains to the front tires.
Replace a rear tire with the compact spare tire.
Replace the flat front tire with t he tire removed from the rear of
the vehicle.
Fit tire chains to the front tires.
■After completing the tire change
The tire pressure warning system must be reset. (P. 442)
■Jack point guide
STEP1
STEP2
STEP3
The jack point guides are located under
the rocker panel. They indicate the jack
point positions.

534 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to
the vehicle suddenly falling off the jack.
●Do not use the tire jack for any pu rpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat
tire. 
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a heigh t greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●Do not put any part of your body under the vehicle supported by a jack.
●Do not start or operate the hybrid system while your vehicle is sup-
ported by the jack.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle may be injured.

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When trouble arises
535
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
CAUTION
■Replacing a flat tire
Observe the following precautions to
reduce the risk of death or serious
injury.
●Do not try to remove the wheel ornament by hand. Take due care in
handling the ornament to avoid unexpected personal injury.
●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 a
serious accident. Remove any oil or grease from the wheel bolts or
wheel nuts.
●Have the wheel nuts tightened with a torque wrench to 76 ft•lbf (103
N•m, 10.5 kgf•m) as soon as possible after changing wheels. 
Failure to follow these precautions could cause the nuts to loosen and
the wheels may fall off, which could lead to an accident causing death
or serious injury.
●Do not attach a heavily damaged wheel ornament, as it may fly off the
wheel while the ve hicle is moving.
■When using the compact spare tire
●Remember that your spare tire is specifically designed for use with
your vehicle. Do not use your spare tire on another vehicle.
●Do not use two spare tires simultaneously.
●Replace the compact spare tire with a standard tire as soon as possi-
ble.
●Avoid sudden acceleration, deceleration and braking, as well as sharp
cornering.
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failing
to observe this precaution may lead to an accident causing death or seri-
ous injury.

536 5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
CAUTION
■When the spare tire is attached
The vehicle speed may not be correctly detected, and the following sys-
tems may not operate correctly:
●ABS & Brake assist
●Enhanced VSC
●Navigation system (if equipped)
●TRAC
●Dynamic radar cruise control (if equipped)
●Cruise control (if equipped)
●PCS (if equipped)
●LKA (if equipped)
●Rear view monitor system (if equipped)
●Advanced parking guidance system (if equipped)
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their
storage location to reduce the possibility of personal injury during a collision
or sudden braking.
■ When stowing the flat tire
● Make sure the rear seats are in their original position.
● Secure it using a tire tie-down belt. Otherwise, the flat tire may fly out in
case of the sudden braking or an accident, resulting in death or serious
injury.

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When trouble arises
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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
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 fl at 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 To yota 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.

538
5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
If the hybrid system will not start
If the hybrid system still does not start after following the correct
starting procedure (
P. 164), confirm the following points.
■ The hybrid system will not start even if you are carrying the
correct key.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank. 
Refuel the vehicle.
● The electronic key battery may be discharged. ( P. 541)
● The hybrid system may be malfunct ioning due to an electrical
problem such as an open circuit or a blown fuse. However,
depending on the type of malfunc tion, an interim measure is
available to start the hybrid system. ( P. 539)
● There may be a malfunction in the immobilizer system. 
( P. 108)
■ The interior lights and headlight s are dim, or the horn does
not sound or sounds at a low volume.
One of the following may be the cause of the problem.
● The 12 volt battery may be discharged. ( P. 543)
● The 12 volt battery terminal c onnections may be loose or cor-
roded.

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When trouble arises
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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
Emergency start function
When the hybrid system does not start, the following steps can be
used as an interim measure to st art the hybrid system if the
“POWER” switch is functioning normally.
Set the parking brake.
Set the “POWER” switch to the ACCESSORY mode.
Push and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Ha ve the vehicle checked by your
Toyota dealer.
■ The interior lights and headlights do not turn on, or the horn
does not sound.
One of the following may be the cause of the problem.
●One or both of the 12 volt ba ttery terminals may be discon-
nected.
● The 12 volt battery may be discharged. ( P. 543)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP1
STEP2
STEP3

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5-2. Steps to take in an emergency
PRIUS_U (OM47668U) U.S.A.
If you lose your keys
New genuine Toyota keys can be made by your Toyota dealer using
other key and the key number stamped on your key number plate.