2017 TOYOTA PRIUS V power steering

230
PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
When the system judges that the vehicle is deviating from the current
traffic lane, an alert buzzer sounds and it prompts cautions from the
display screen of the multi-information display.
When the alert buzzer sounds, please check the surrounding road situa-
tion and return near the center of the white (yellow) lane markers by safely
operating the steering wheel.
Press the LDA switch to activate
the LDA.
LDA indicator will come on and
lane lines will be displayed on the
multi-information display.
Press the switch again to deacti-
vate the LDA.
The LDA will remain on or off even
if the power switch is turned off.
Lane departure alert function
Alert buzzer
Turning the LDA on

248
PRIUS v_OM_OM47B23U_(U)
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 redu ce the amount of effort needed to
turn the steering wheel
◆Enhanced VSC (Enhanced Ve hicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional st ability when swerving on slippery
road surfaces by controllin g steering performance.
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.

252
PRIUS v_OM_OM47B23U_(U)
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 system
After turning the TRAC system off, the system will be automatically re-
enabled in the following situations:
●When the power switch is turned off
● The TRAC will turn on when vehicle speed increases
■ Electric power steering system warning light (warning buzzer)
P. 493
■ 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.

276
PRIUS v_OM_OM47B23U_(U)
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

365
PRIUS v_OM_OM47B23U_(U)
6Interior features
6-1. Using the air conditioning system and defogger
Automatic air conditioning system............................. 366
Using the steering wheel climate remote control
switches .......................... 373
Seat heaters...................... 374
6-2. Using the interior lights Interior lights list ................ 375
• Front interior light .......... 376
• Front personal lights ..... 376
• Rear interior light .......... 377
6-3. Using the storage features List of storage features ..... 378
• Glove boxes .................. 379
• Console box .................. 379
• Cup holders/ bottle holders/
door pockets ................. 380
• Auxiliary boxes.............. 382
• Card holder ................... 382
Luggage compartment features ........................... 383 6-4. Using the other interior
features
Other interior features ....... 387
• Sun visors ..................... 387
• Vanity mirrors................ 387
• Clock ............................. 388
• Power outlet .................. 388
• Armrest ......................... 389
• Coat hooks.................... 389
• Assist grips ................... 390
• Panoramic roof shades .......................... 391
Garage door opener.......... 393
Safety Connect ................. 400

485
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
8-1. Essential information
If your vehicle has to be stopped in an
emergency
Steadily step on the brake pedal wi th both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort
required to slow the vehicle.
Shift the shift position to N.
If the shift position is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the hybrid system.
If the shift position cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle
speed as much as possible.
To stop the hybrid system,
press and hold the power
switch for 2 consecutive sec-
onds or more, or press it briefly
3 times or more in succession.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, st op the vehicle using the follow-
ing procedure:
1
2
3
4
3
Press and hold for 2 seconds or more,
or press briefly for 3 times or more
4
WARNING
■ If the hybrid system has to be turned off while driving
Power assist for the steering wheel will be lost, making the steering wheel
heavier to turn. Decelerate as much as possible before turning off the hybrid
system.
5

4898-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
Securely attach cables or chains to the towing eyelet.
Take care not to damage the vehicle body.
Enter the vehicle being towed and start the hybrid system.
If the hybrid system does not start, turn the power switch to ON mode.
Shift the shift position to N and release the parking brake.
■While towing
If the hybrid system is off, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
■ Wheel nut wrench
Wheel nut wrench is installed in luggage compartment. ( P. 525)
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■ While towing
●When towing using cables or chains, avoid sudden starts, etc. which place
excessive stress on the towing eyelet, cables or chains. The towing eyelet,
cables or chains may become damaged, broken debris may hit people and
cause serious damage.
● Do not turn the power switch off.
This may lead to an accident as the front wheels will be locked by the
parking lock.
■ Installing towing eyelets to the vehicle
●The towing eyelets are only for the vehicle equipped with them. Do not use
the towing eyelets for another vehicle, and do not use the towing eyelets
for this vehicle on another vehicle.
● Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing.
5
6
7
Be sure to transport the vehicle with the
front wheels raised or with all four wheels
raised off the ground. If the vehicle is
towed with the front wheels contacting
the ground, the drivetrain and related
parts may be damaged or electricity gen-
erated by the operation of the motor may
cause a fire to occur depending on the
nature of the damage or malfunction.

4938-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system; or
• The electronic throttle control system
 Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Toyota dealer
immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by your Toyota dealer
immediately.
Electric power steering system warning light (warning
buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
 Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
(If equipped)
PCS warning light
Indicates a malfunction in the pre-collision system
 Have the vehicle inspected by your Toyota dealer
immediately.
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will come on when the TRAC and VSC are turned off. (P. 251)
• The light will come on when the pre-collision system is turned off. (P. 256)
• The light will flash when the system cannot temporarily be used.
Warning lightWarning light/Details/Actions