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Toyota Prius V (2018 year). Instruction - part 15

4-5. Using the driving support systems

245

● When the ground behind the vehicle slopes up sharply

The distance guide lines will

appear to be closer to the

vehicle than the actual dis-

tance. Because of this,

objects will appear to be far-

ther away than they actually

are. In the same way, there

will be a margin of error

between the guide lines and

the actual distance/course on

the road.

4

● When the ground behind the vehicle slopes down sharply

The distance guide lines will

appear to be farther from the

vehicle than the actual dis-

tance. Because of this,

objects will appear to be

closer than they actually are.

In the same way, there will be

a margin of error between

the guide lines and the actual

distance/course on the road.

246

4-5. Using the driving support systems

● When any part of the vehicle sags

When any part of the vehicle

sags due to the number of

passengers or the distribu-

tion of the load, there is a

margin of error between the

fixed guide lines on the

screen and the actual dis-

A margin of error

tance/course on the road.

■ When approaching three-dimensional objects

The distance guide lines are displayed according to flat surfaced

objects (such as the road). It is not possible to determine the posi-

tion of three-dimensional objects (such as vehicles) using the vehi-

cle width guide lines and distance guide lines. When approaching a

three-dimensional object that extends outward (such as the flatbed

of a truck), be careful of the following.

● Vehicle width guide lines

Visually check the surround-

ings and the area behind the

vehicle. In the case shown

below, the truck appears to

be outside of the vehicle

width guide lines and the

vehicle does not look as if it

hits the truck. However, the

rear body of the truck may

actually cross over the vehi-

cle width guide lines. In real-

ity if you back up as guided

by the vehicle width guide

lines, the vehicle may hit the

truck.

4-5. Using the driving support systems

247

● Distance guide lines

Visually check the surround-

ings and the area behind the

vehicle. On the screen, it

appears that a truck is park-

ing at point 2 . However, in

reality if you back up to point

1

, you will hit the truck. On

the screen, it appears that

1

is closest and

3

is farthest

away. However, in reality, the

distance to

1

and

3

is the

same, and

2

is farther than

1

and

3

4

248

4-5. Using the driving support systems

Things you should know

■ If you notice any symptoms

If you notice any of the following symptoms, refer to the likely cause

and the solution, and re-check.

If the symptom is not resolved by the solution, have the vehicle

inspected by your Toyota dealer.

Likely cause

Solution

 The image is difficult to see

• The vehicle is in a dark area

• The temperature around the lens

is either high or low

If this happens due to these causes,

• The outside temperature is low

it does not indicate a malfunction.

• There are water droplets on the

Back up while visually checking the

camera

vehicle’s surroundings.

(Use the

• It is raining or humid

monitor again once conditions have

• Foreign matter

(mud, etc.) is

been improved.)

adhering to the camera

The procedure for adjusting the pic-

• Sunlight or headlights are shining

ture quality of the rear view monitor

directly into the camera

system is the same as the proce-

• The vehicle is under fluorescent

dure for adjusting the screen.

lights, sodium lights, mercury

lights etc.

 The image is blurry

Dirt or foreign matter (such as water

Flush the camera with a large quan-

droplets, snow, mud, etc.) is adher-

tity of water and wipe the camera

ing to the camera.

lens clean with a soft and wet cloth.

 The image is out of alignment

The camera or surrounding area has

Have the vehicle inspected by your

received a strong impact.

Toyota dealer.

 The fixed guide lines are very far out of alignment

The camera position is out of align-

Have the vehicle inspected by your

ment.

Toyota dealer.

• The vehicle is tilted

(there is a

If this happens due to these causes,

heavy load on the vehicle, tire

it does not indicate a malfunction.

pressure is low due to a tire punc-

Back up while visually checking the

ture, etc.)

vehicle’s surroundings.

• The vehicle is used on an incline.

4-5. Using the driving support systems

249

WARNING

■ When using the rear view monitor system

The rear view monitor system is a supplemental device intended to assist

the driver when backing up. When backing up, be sure to visually check all

around the vehicle both directly and using the mirrors before proceeding.

Observe the following precautions to avoid an accident that could result in

death or serious injuries.

● Never depend on the rear view monitor system entirely when backing up.

The image and the position of the guide lines displayed on the screen may

differ from the actual state.

Use caution, just as you would when backing up any vehicle.

● Be sure to back up slowly, depressing the brake pedal to control vehicle

speed.

●The instructions given are only guide lines.

When and how much to turn the steering wheel will vary according to traf-

fic conditions, road surface conditions, vehicle condition, etc. when park-

4

ing. It is necessary to be fully aware of this before using the rear view

monitor system.

● When parking, be sure to check that the parking space will accommodate

your vehicle before maneuvering into it.

● Do not use the rear view monitor system in the following cases:

• On icy or slick road surfaces, or in snow

• When using tire chains or emergency tires

• When the back door is not closed completely

• On roads that are not flat or straight, such as curves or slopes

● In low temperatures, the screen may darken or the image may become

faint. The image could distort when the vehicle is moving, or you may

become unable to see the image on the screen. Be sure to visually check

all around the vehicle both directly and using the mirrors before proceed-

ing.

● If the tire sizes are changed, the position of the fixed guide lines displayed

on the screen may change.

● The camera uses a special lens. The distances between objects and

pedestrians that appear in the image displayed on the screen will differ

from the actual distances. (P. 244)

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4-5. Using the driving support systems

NOTICE

■ How to use the camera

● The rear view monitor system may not operate properly in the following

cases.

• If the back of the vehicle is hit, the position and mounting angle of the

camera may change.

• As the camera has a water proof construction, do not detach, disassem-

ble or modify it. This may cause incorrect operation.

• When cleaning the camera lens, flush the camera with a large quantity

of water and wipe it with a soft and wet cloth. Strongly rubbing the cam-

era lens may cause the camera lens to be scratched and unable to

transmit a clear image.

• Do not allow organic solvent, car wax, window cleaner or a glass coat-

ing to adhere to the camera. If this happens, wipe it off as soon as pos-

sible.

• If the temperature changes rapidly, such as when hot water is poured

on the vehicle in cold weather, the system may not operate normally.

• When washing the vehicle, do not apply intensive bursts of water to the

camera or camera area. Doing so may result in the camera malfunc-

tioning.

●Do not expose the camera to strong impact as this could cause a malfunc-

tion. If this happens, have the vehicle inspected by your Toyota dealer as

soon as possible.

4-5. Using the driving support systems

251

Driving mode select switch

The driving modes can be selected to suit driving conditions.

1

Eco drive mode*

Suitable for improving the fuel

economy, because the torque cor-

responding to the accelerator

pedal depression amount can be

generated more smoothly than it is

in normal conditions and the oper-

ation of the air conditioning system

(heating/cooling) will be minimized.

When the “ECO” switch is pressed, the “ECO MODE” indicator comes on

in the instrument cluster.

4

2

Power mode*

Use when high levels of response and feeling are desirable, such as when

driving in mountainous regions or when overtaking.

When the “PWR” switch is pressed, the “PWR MODE” indicator comes on

in the instrument cluster.

*: When Eco drive mode and power mode are canceled, the system uses

normal mode for optimal everyday driving.

■Operation of the air conditioning system in Eco drive mode

Eco drive mode controls the heating/cooling operations and fan speed of the

air conditioning system to enhance fuel efficiency (P. 365). To improve air

conditioning performance, adjust the fan speed or turn off Eco drive mode.

■ When canceling Eco drive mode/power mode

●Press the switch again. Also, power mode will be canceled automatically

when the power switch is turned off. However, Eco drive mode will not be

canceled automatically until the switch is pressed, even if the power switch

is turned off.

●When in Eco drive mode, if the “PWR” switch is pressed or the operation is

reversed, the mode will switch to that of the last switch to be pressed.

■ Switching the drive mode when in EV drive mode

P. 174

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4-5. Using the driving support systems

Driving assist systems

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.

◆ 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

◆ Enhanced VSC (Enhanced Vehicle Stability Control)

Provides cooperative control of the ABS, TRAC, VSC and EPS.

Helps to maintain directional stability when swerving on slippery

road surfaces by controlling steering performance.

4-5. Using the driving support systems

253

◆ Hill-start assist control

Helps to prevent the vehicle from rolling backward when starting on

an incline or slippery slope

When the VSC/TRAC/ABS systems are operating

The slip indicator light will flash

while the VSC/TRAC/ABS sys-

tems are operating.

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254

4-5. Using the driving support systems

Disabling the TRAC system

If the vehicle gets stuck in mud, dirt or snow, the TRAC system may

reduce power from the hybrid system to the wheels. Pressing

to

turn the system off may make it easier for you to rock the vehicle in

order to free it.

To turn the TRAC system off,

quickly press and release

The message will be shown on the

multi-information display. Press

again to turn the system back

on.

4-5. Using the driving support systems

255

■ Turning off both TRAC/VSC systems

To turn the TRAC/VSC systems off, press and hold

for more than 3 sec-

onds while the vehicle is stopped.

The VSC OFF indicator light will come on and the message will be shown on

the multi-information display.*

Press

again to turn the systems back on.

*: Pre-collision brake assist and pre-collision braking will also be disabled.

The PCS warning light will come on and the message will be shown on the

multi-information display. (P. 479)

■ When the message is displayed on the multi-information display show-

ing that TRAC has been disabled even if the VSC OFF switch has not

been pressed

TRAC cannot be operated. Contact your Toyota dealer.

■ Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and

hill-start assist control systems

4

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 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.

4-5. Using the driving support systems

257

WARNING

■ The ABS does not operate effectively when

● The limits of tire gripping performance have been exceeded (such as

excessively worn tires on a snow covered road).

● The vehicle hydroplanes while driving at high speed on wet or slick road.

■ Stopping distance when the ABS is operating may exceed that of nor-

mal conditions

The ABS is not designed to shorten the vehicle’s stopping distance. Always

maintain a safe distance from the vehicle in front of you, especially in the

following situations:

● When driving on dirt, gravel or snow-covered roads

●When driving with tire chains

● When driving over bumps in the road

● When driving over roads with potholes or uneven surfaces

■ TRAC may not operate effectively when

4

Directional control and power may not be achievable while driving on slip-

pery road surfaces, even if the TRAC system is operating.

Drive the vehicle carefully in conditions where stability and power may be

lost.

■ Hill-start assist control does not operate effectively when

● Do not overly rely on the hill-start assist control. The hill-start assist control

may not operate effectively on steep inclines and roads covered with ice.

●Unlike the parking brake, hill-start assist control is not intended to hold the

vehicle stationary for an extended period of time. Do not attempt to use

hill-start assist control to hold the vehicle on an incline, as doing so may

lead to an accident.

■ When the VSC is activated

The slip indicator light flashes. Always drive carefully. Reckless driving may

cause an accident. Exercise particular care when the indicator light flashes.

■ When the TRAC/VSC system is turned off

Be especially careful and drive at a speed appropriate to the road condi-

tions. As this is the system to help ensure vehicle stability and driving force,

do not turn the TRAC/VSC system off unless necessary.

258

4-5. Using the driving support systems

WARNING

■ Replacing tires

Make sure that all tires are of the specified size and of the same brand,

tread pattern and total load capacity. In addition, make sure that the tires are

inflated to the recommended tire inflation pressure level.

The ABS, VSC and TRAC systems will not function correctly if different tires

are installed on the vehicle.

Contact your Toyota dealer for further information when replacing tires or

wheels.

■ Handling of tires and the suspension

Using tires with any kind of problem or modifying the suspension will affect

the driving assist systems, and may cause a system to malfunction.

4-6. Driving tips

259

Hybrid vehicle driving tips

For economical and ecological driving, pay attention to the fol-

lowing points:

◆ Using Eco drive mode

When using Eco drive mode, the torque corresponding to the accel-

erator pedal depression amount can be generated more smoothly

than it is in normal conditions. In addition, the operation of the air

conditioning system (heating/cooling) will be minimized, improving

the fuel economy. (P. 251)

◆ Use of Hybrid System Indicator

The Eco-friendly driving is possible by keeping the Hybrid System

4

Indicator within Eco area. (P. 101)

◆ Shift position operation

Shift the shift position to D when stopped at a traffic light, or driving

in heavy traffic etc. Shift the shift position to P when parking. When

using the N, there is no positive effect on fuel consumption. In the

N, the gasoline engine operates but electricity cannot be gener-

ated. Also, when using the air conditioning system, etc., the hybrid

battery (traction battery) power is consumed.

◆ Accelerator pedal/brake pedal operation

● Drive your vehicle smoothly. Avoid abrupt acceleration and

deceleration. Gradual acceleration and deceleration will make

more effective use of the electric motor (traction motor) without

having to use gasoline engine power.

● Avoid repeated acceleration. Repeated acceleration consumes

hybrid battery (traction battery) power, resulting in poor fuel con-

sumption. Battery power can be restored by driving with the

accelerator pedal slightly released.

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4-6. Driving tips

◆ When braking

Make sure to operate the brakes gently and in a timely manner. A

greater amount of electrical energy can be regenerated when slow-

ing down.

◆ Delays

Repeated acceleration and deceleration, as well as long waits at

traffic lights, will lead to bad fuel economy. Check traffic reports

before leaving and avoid delays as much as possible. When driving

in a traffic jam, gently release the brake pedal to allow the vehicle to

move forward slightly while avoiding overuse of the accelerator

pedal. Doing so can help control excessive gasoline consumption.

◆ Highway driving

Control and maintain the vehicle at a constant speed. Before stop-

ping at a toll booth or similar, allow plenty of time to release the

accelerator and gently apply the brakes. A greater amount of elec-

trical energy can be regenerated when slowing down.

◆ Air conditioning

Use the air conditioning only when necessary. Doing so can help

reduce excessive gasoline consumption.

In summer: When the ambient temperature is high, use the recircu-

lated air mode. Doing so will help to reduce the burden on the air

conditioning system and reduce fuel consumption as well.

In winter: Because the gasoline engine will not automatically cut out

until it and the interior of the vehicle are warm, it will consume fuel.

Fuel consumption can be improved by avoiding overuse of the

heater.

◆ Checking tire inflation pressure

Make sure to check the tire inflation pressure frequently. Improper

tire inflation pressure can cause poor fuel economy.

Also, as snow tires can cause large amounts of friction, their use on

dry roads can lead to poor fuel economy. Use tires that are appro-

priate for the season.

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