steering TOYOTA PRIUS 2018 (in English) Manual PDF

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4-5. Using the driving support systems
Driving assist systems
◆ECB (Electronically Controlled Brake System)
The electronically controlled system generates braking force corre-
sponding to the brake operation
◆ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly,
or if the brakes are applied while driving on a slippery road surface
◆Brake assist
Generates an increased level of braking force after the brake pedal
is depressed when the system detects a panic stop situation
◆VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces
◆TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicle or accelerating on slippery roads
◆EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel
To help enhance driving safety and performance, the following
systems operate automatically in response to various driving
situations. Be aware, however, that these systems are supple-
mentary and should not be relied upon too heavily when operat-
ing the vehicle.

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4094-5. Using the driving support systems
4
Driving
◆Enhanced VSC (Enhanced Ve hicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery
road surfaces by controllin g steering performance.
◆Hill-start assist control
Helps to reduce the vehicle from rolling backward when starting on
a uphill
The slip indicator light will flash
while the VSC/TRAC/ABS sys-
tems are operating.
When the VSC/TRAC/ABS systems are operating

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4114-5. Using the driving support systems
4
Driving
■Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and
hill-start assist control systems
Any of the following conditions may occur when the above systems are oper-
ating. None of these indicates that a malfunction has occurred.
●Vibrations may be felt through the vehicle body and steering.
● A motor sound may be heard also after the vehicle comes to a stop.
● The brake pedal may pulsate slightly after the ABS is activated.
● The brake pedal may move down slightly after the ABS is activated.
■ ECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
●Operating sound heard from the engine compartment when the brake pedal
is operated.
● Motor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
● Operating sound heard from the engine compartment when 1 or 2 minutes
passed after the stop of the hybrid system.
■ EPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.

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4-5. Using the driving support systems
■Reduced effectiveness of the EPS system
The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur, refrain
from excessive steering input or stop the vehicle and turn the hybrid system
off. The EPS system should return to normal within 10 minutes.
■ Automatic reactivation of TRAC and VSC systems
After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:
● When the power switch is turned off
● If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed increases
If both the TRAC and VSC systems are turned off, automatic re-enabling will
not occur when vehicle speed increases.
■ Electric power steering system warning light (warning buzzer)
→P. 674
■ Operating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will
operate:
● The shift position is in a position other than P or N (when starting off forward/
backward on an upward incline)
● The vehicle is stopped
● The accelerator pedal is not depressed
● The parking brake is not engaged
■ Automatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
● Shift the shift position to P or N
● The accelerator pedal is depressed
● The parking brake is engaged
● Approximately 2 seconds elapse after the brake pedal is released

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4-6. Driving tips
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
● Install tire chains on the front tires only. Do not install tire chains on the rear
tires.
● Install tire chains on front tires as tightly as possible. Retighten chains after
driving 1/4 - 1/2 mile (0.5 - 1.0 km).
● Install tire chains following the instructions provided with the tire ch\
ains.
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and cause death or
serious injury.
● Use tires of the specified size.
● Maintain the recommended level of air pressure.
● Do not drive in excess of 75 mph (120 km/h), regardless of the type of
snow tires being used.
● Use snow tires on all, not just some wheels.
■ Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in the vehicle being unable to be driven safely,
and may cause death or serious injury.
● Do not drive in excess of the speed limit specified for the tire chains being
used, or 30 mph (50 km/h), whichever is lower.
● Avoid driving on bumpy road surfaces or over potholes.
● Avoid sudden acceleration, abrupt steering, sudden braking and shifting
operations that cause sudden engine braking.
● Slow down sufficiently before entering a curve to ensure that vehicle con-
trol is maintained.
● Do not use LDA (Lane Departure Alert with steering control) (if equipped).
■ When parking the vehicle
When parking the vehicle without applying the parking brake, make sure to
chock the wheels. If you do not chock the wheels, the vehicle may move
unexpectedly, possibly resulting in an accident.

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5-1. Basic OperationsAudio system types .......... 424
Audio system .................... 425
Using the steering wheel audio switches ................ 428
AUX Port/USB Port .......... 429
Basic audio operations ..... 430
5-2. Setup Setup menu ...................... 432
General settings ............... 433
Audio settings ................... 435
Display settings ................ 436
Voice settings ................... 437
5-3. Using the Multimedia system
Selecting the audio source............................. 438
List screen operation ........ 439
Optimal use of the audio system ............................ 441
5Audio system

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5Audio system
5-4. Using the radioRadio operation ................ 442
5-5. Playing an audio CD and MP3/WMA/AAC discs
CD player operation.......... 444
5-6. Using an external device iPod player operation........ 450
USB memory device player operation.............. 455
Using the AUX .................. 460
5-7. Connecting Bluetooth
®
Preparations to use wireless
communication ............... 461
Registering a Bluetooth
®
audio player for the
first time .......................... 464
Registering a Bluetooth
®
phone for the first time.... 465
Registering a Bluetooth
® device ........... 466
Connecting a Bluetooth
® device ........... 468
Displaying a Bluetooth®
device details.................. 470
Detailed Bluetooth
®
settings ........................... 471 5-8. Bluetooth
® Audio
Listening to Bluetooth®
Audio .............................. 472
5-9. Bluetooth
® phone
Using a Bluetooth®
Phone ............................. 474
Making a call .................... 477
Receiving a call ................ 480
Speaking on the phone .... 481
Bluetooth
® phone
message function ........... 484
Using the steering wheel switches.......................... 488
Bluetooth
® phone
settings ........................... 489
Contact/Call History Settings .......................... 490
What to do if... (Troubleshooting) ........... 499
5-10. Bluetooth
®
Bluetooth®........................ 503
5-11. Using the voice command system
Voice command system ............................ 509

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5-1. Basic Operations
Using the steering wheel audio switches
Vo l u m e s w i t c h• Press: Increases/decreases volume
• Press and hold: Continuously increases/decreases volume
Cursor switch (Radio mode) • Press: Selects a radio station
• Press and hold: Seeks up/ down
Cursor switch (CD, MP3/WMA disc, Bluetooth
®, iPod or USB
mode) • Press: Selects a track/file/song
• Press and hold: Fast up/down
“MODE” switch • Press: Turns the power on, selects an audio source
• Press and hold: Turns the power off
■ Canceling automatic selection of a radio station
Press the “ ∧” or “ ∨” again.
Some audio features can be c ontrolled using the switches on
the steering wheel.
Operation may differ depending on the type of audio system or
navigation system. For details, refer to the manual provided with
the audio system or navigation system.
1
2
WARNING
Exercise care when operating the audio switches on the steering wheel.
3

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5-3. Using the Multimedia system
Selecting the audio source
Press the “AUDIO” button to display the audio source selection
screen.
If the audio source selection screen is not displayed, press the “AUDIO”
button again.
Select the desired audio
source.
Select the desired audio
source then or to
reorder.
The audio source changes each time the “MODE” switch is pressed.
Switching between audio sources such as radio and CD are
explained in this section.
Changing audio source
1
2
1
Using the steering wheel switches to change audio source

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5-9. Bluetooth® phone
Using a Bluetooth® Phone
To display the screen shown below, press the switch on the
steering wheel or the button.
Several functions are available to operate on each screen that is dis-
played by selecting the 4 tabs.
Device name
Bluetooth
® connection status
The hands-free system is a function that allows you to use your
cellular phone without touching it.
This system supports Bluetooth
®. Bluetooth® is a wireless data
system that allows the cellular phone to wirelessly connect to
the hands-free system and make/receive calls.
Before making a phone call, check the connection status, battery
charge, call area and signal strength. ( →P. 476)
If a Bluetooth
® device cannot be connected, check the connection
status on the phone screen. If th e device is not connected, either
register or reconnect it. ( →P. 468)
Phone screen
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2