Page 529 of 620
5298-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
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 spare tire and loosely tighten each wheel nut by hand by
approximately the same amount.
When replacing an aluminum
wheel with a steel wheel
(including a compact spare
tire), tighten the wheel nuts until
the tapered portion comes into
loose contact with the disc
wheel seat.
When replacing an aluminum
wheel with an aluminum wheel,
turn the wheel nuts until the
washers come into contact with
the disc wheel.
Installing the spare tire
1
2
Tapered portion
Disc wheel
seat
Washer
Disc wheel
Page 530 of 620
5308-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
Lower the vehicle.
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.
3
4
5
6
Page 531 of 620

5318-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
■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, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
(P. 559)
■After completing the tire change
The tire pressure warning system must be reset. (P. 444)
■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.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire
compared to when driving with standard tires.
■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 vehi-
cle.
Fit tire chains to the front tires.
1
2
3
Page 532 of 620

5328-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
WARNING
■When using the compact spare tire
●Remember that the spare tire provided is specifically designed for use
with your vehicle. Do not use your spare tire on another vehicle.
●Do not use more than one compact spare tire simultaneously.
●Replace the spare tire with a standard tire as soon as possible.
●Avoid sudden acceleration, abrupt steering, sudden braking and shift-
ing operations that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following sys-
tems may not operate correctly:
■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. Fail-
ure to observe this precaution may lead to an accident causing death or
serious injury.
■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.
• ABS & Brake assist
• VSC
•TRAC
• Cruise control
*
• Dynamic radar cruise control*
• Pre-collision system*
• EPS
• Rear view monitor system
*
• LDA (Lane Departure Alert)*
• Navigation system*
*
: If equipped
Page 533 of 620
5338-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
NOTICE
■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 driving 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.
Page 534 of 620

534
PRIUS v_OM_OM47B12U_(U)
8-2. Steps to take in an emergency
If the hybrid system will not star t
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly.
* (P. 536)
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (P. 79)
●There may be a malfunction in the immobilizer system.
* (P. 8 2 )
●There may be a malfunction in the shift control system.
*
(P. 177, 492, 505)
●The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. (P. 535)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 538)
●The 12-volt battery terminal connections may be loose or corroded.
(P. 439)
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. (P. 174)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 535 of 620

5358-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. (P. 538)
●One or both of the 12-volt battery terminals may be disconnected.
(P. 439)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the power
switch is functioning normally.
Do not use this starting procedure except in cases of emergency.
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Press 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. Have the vehicle inspected by your
Toyota dealer.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function
1
2
3
Page 536 of 620

536
PRIUS v_OM_OM47B12U_(U)
8-2. Steps to take in an emergency
If the electronic key does not operate
properly
Use the mechanical key (P. 11 7 )
in order to perform the following
operations:
Locks all the doors
Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 3 seconds
unlocks the other doors.
Depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
power switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the elec-
tronic key.
Press the power switch within 10 seconds of the buzzer sounding,
keeping the brake pedal depressed.
In the event that the hybrid system still cannot be operated, contact
your Toyota dealer.
If communication between the electronic key and vehicle is
interrupted (P. 133) or the electronic key cannot be used
because the battery is depleted, the smart key system and
wireless remote control cannot be used. In such cases, the
doors can be opened and the hybrid system can be started by
following the procedure below.
Locking and unlocking the doors
1
2
Starting the hybrid system
1
2
3