Page 443 of 568
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
Page 473 of 568

5
When trouble arises
473
5-2. Steps to take in an emergency
PRIUS v_U (OM47784U)
CAUTION
■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. Failure
to observe this precaution may lead to
an accident causing death or seri-
ous injury.
■Using the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off
the jack, leading to death or serious injury.
Observe the following precautions:
●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 wi th 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 put any part of your body under the vehicle while it is supported
by the jack.
●Do not start or run the hybrid system while your vehicle is supported by
the jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a hei ght greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
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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523
6-1. Specifications
6
Vehicle specifications
PRIUS v_U (OM47784U)
Tire related termMeaning
Section width The linear distance between the exteriors of
the sidewalls of an inflated tire, excluding ele-
vations due to labeling, decoration, or protec-
tive bands
Sidewall That portion of a tire between the tread and
bead
Sidewall separation The parting of the rubber compound from the
cord material in the sidewall
Snow tire A tire that attains a traction index equal to or
greater than 110, compared to the ASTM E-
1136 Standard Reference Test Tire, when
using the snow traction test as described in
ASTM F-1805-00, Standard Test Method for
Single Wheel Driving Traction in a Straight Line
on Snow-and Ice-Covered Surfaces, and which
is marked with an Alpine Symbol ( ) on at
least one sidewall
Te s t r i m The rim on which a tire is fitted for testing, and
may be any rim listed as appropriate for use
with that tire
Tread That portion of a tire that comes into contact
with the road
Tread rib A tread section running circumferentially
around a tire
Page 554 of 568

554 Alphabetical index
PRIUS v_U (OM47784U)
Daytime running light system .................................... 218
Deck board ............................... 328
Defogger
Rear window .........................295
Side mirrors ...........................295
Dimensions............................... 496
Dinghy towing .......................... 278
Display Dynamic radar cruise control .................................235
Trip information ..................... 201
Do-it-yourself main tenance..... 363
Door lock Back door ................................79
Side doors ............................... 74
Smart key system... ................. 57
Wireless remote control .......... 72
Door pockets ............................ 313
Doors Back door ................................79
Door glasses .........................112
Door lock ..................... 57, 72, 74
Rear door child-protector ........75
Side doors ............................... 74
Driver’s seat belt reminder light ......................................... 451
Driving
Break-in tips .......................... 165
Correct posture ..................... 122
Procedures............................ 164
Winter driving tips.................. 273 Eco drive mode switch ............ 187
Electric power steering ........... 252
Electronic key
If the electronic key does not operate properly ................. 479
Replacing battery .................. 408
Emergency, in case of If a warning buzzer sounds ................................ 444
If a warning light turns on ...... 444
If the electronic key does not operate properly ................. 479
If the hybrid system will not start..................................... 476
If the 12-volt battery is
discharged .......................... 481
If you have a flat tire ............. 462
If you lose your keys ............. 478
If you think something is wrong .................................. 443
If your vehicle becomes stuck ................................... 491
If your vehicle has to be stopped in an
emergency .......................... 493
If your vehicle needs to be towed .................................. 437
If your vehicle overheats ....... 487
Emergency flashers Switch ................................... 436DE
Page 562 of 568
562
PRIUS v_U (OM47784U)
What to do if...
What to do if...
A tire puncturesP. 462If you have a flat tire
The hybrid system does not start
P. 476If the hybrid system will not start
P. 1 1 9Immobilizer system
P. 481If the 12-volt battery is
discharged
The high coolant temperature
warning light flashes or comes on
If the hybrid system overheat
warning light comes on
Steam can be seen coming
from under the hood
P. 487If your vehicle overheats
The key is lostP. 478If you lose your keys
The 12-volt battery runs outP. 481If the 12-volt battery is
discharged
The doors cannot be lockedP. 7 4Side doors
P. 7 9Back door
The vehicle is stuck in mud or
sandP. 491If the vehicle becomes stuck
A warning light or indicator
light comes onP. 444If a warning light turns on or a
warning buzzer sounds