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2524-6. Using the driving support systems
PRIUS c_U
WARNING
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON-OFF” button when not in use.
■ Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accid ent resulting
in death or serious injury.
● In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On steep hills
Vehicle speed may exceed the set speed when driving down a stee p hill.
● During emergency towing
Page 369 of 596

3695-12. Using the voice command system (Multimedia system)
5
Audio system
PRIUS c_U
■Microphone
P. 331
■ When using the microphone
●It is unnecessary to speak directly into the microphone when gi ving a com-
mand.
● When “Voice Prompt Interrupt” set to on, it is not necessary to wait for the
confirmation beep before speaking a command. ( P. 291)
● Voice commands may not be recognized if:
• Spoken too quickly.
• Spoken at a low or high volume.
• The roof or windows are open.
• Passengers are talking while voice commands are spoken.
• The air conditioning speed is set high.
• The air conditioning vents are turned towards the microphone.
● In the following conditions, the system may not recognize the command
properly and using voice commands may not be possible:
• The command is incorrect or unclear. Note that certain words, accents or
speech patterns may be difficult for the system to recognize.
• There is excessive background noise, such as wind noise.
Due to natural language speech recognition technology, this sys tem
enables recognition of a command when spoken naturally. However ,
the system cannot recognize ever y variation of each command.
In some situations, it is possi ble to omit the command for the proce-
dure and directly state the desired operation.
Not all voice commands are displayed in the short cut menu.
This function is available in English, Spanish and French.
■Expression examples for each function
Casual speech recognization
CommandExpression examples
“Call (name)
(type)”Get me (Robert Brown).
I need to call (Robert Brown) at (Work) right away.
“Dial (number)”Please dial the number (3334445555).
Ring (3334445555).
Page 390 of 596
3906-3. Using the storage features
PRIUS c_U
■When using the bottle holder
●When storing a bottle, close the cap.
● The bottle may not be stored depending on its size or shape.
Bottle holders
WARNING
Do not place anything other than a bottle in the bottle holders .
Items in the bottle holders may be thrown out of the holders in the event of
an accident or sudden braking and cause injury.
NOTICE
Put the cap on before stowing a bottle. Do not place open bottl es in the bot-
tle holders, or glasses and paper cups containing liquid. The c ontents may
spill and glasses may break.
Page 414 of 596

414
PRIUS c_U
7-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsCheck points
12-volt battery condition (
P. 429) •
Grease
• C onventional wrench
(for te rminal clamp bolts)
Brake fluid level
(P. 426)
• FMVSS No.116 DOT 3 or SAE J1703 brake
fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power control
unit coolant level (P. 424)
• “Toyota Super Long Life Coolant” or a similar
high quality ethylene glycol based non-sili-
cate, non-amine, non-nitrite and non-borate
coolant with long-life hybrid organic acid tech-
nology
For the U. S.A.:
“Toyota Super Long Life Coolant” is pre-mixed
with 50% coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed
with 55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level (P. 421)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 452)• Fuse with same amperage rating as original
Light bulbs (P. 456)
• Bulb with same number and wattage rating as
original
• Phillips-head screwdriver
• Flathead screwdriver
• Wrench
Radiator and condenser
(P. 426)
Tire inflation pressure
( P. 442)• Tire pressure gauge
• Compressed air source
Page 440 of 596

4407-3. Do-it-yourself maintenance
PRIUS c_U
WARNING
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accide nt
resulting in death o r serious injury.
●Do not mix tires of different ma kes, models or tread patterns.
Also, do not mix tires of re markably different treadwear.
●Do not use tire sizes other th an those recommended by Toyota.
●Do not mix differently constructed tires (radial, bias-belted o r bias-ply
tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have b een used on another vehicle.
Do not use tires if you do not kn ow how they were used previous ly.
●Do not tow if your vehicle has a compact spare tire installed.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first
adjusting the tire inflation pressure to the specified level. O therwise, the
tire pressure warning light may not come on even if the tire in flation
pressure is low, or it may come on when the tire inflation pres sure is
actually normal.
Page 465 of 596
465
8When trouble arises
PRIUS c_U8-1. Essential information
Emergency flashers .......... 466
If your vehicle has to be stopped in
an emergency ................. 467
8-2. S teps to take in
a n emergency
If your vehicle needs to be towed ..................... 469
If you think something is wrong .......................... 476
If a warning light turns on or a warning buzzer
sounds ............................ 477
If a warning message is displayed ..................... 485
If you have a flat tire.......... 502
If the hybrid system will not start ..................... 515
If the electronic key does not operate properly ........ 517
If the vehicle 12-volt battery is discharged ....... 519
If your vehicle overheats ........................ 526
If the vehicle becomes stuck ................ 530
Page 469 of 596
469
8
When trouble arises
PRIUS c_U
8-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact
your Toyota dealer or commercial towing service before towing.
● A warning message for the hybrid system is shown on the multi-
information display and the vehicle does not move.
● The vehicle makes an abnormal sound.
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer o r commercial towing service,
using a wheel-lift type t ruck or flatbed truck.
Use a safety chain system for all towing, and abide by all stat e/
provincial and local laws.
Situations when it is necessary to contact dealers before towing
Page 470 of 596
4708-2. Steps to take in an emergency
PRIUS c_U
Do not tow with a sling-type truck
to prevent body damage.
Towing with a sling-type truck
Towing with a wheel-lift type truck
From the frontFrom the rear
Release the parking brake. Us e a towing dolly under the
front wheels.