2014 TOYOTA PRIUS Brake system

1
2
3
4
5
6
7
3
PRIUS_OM_OM47857U_DVD_(U)
2-1. Driving proceduresDriving the vehicle............... 182
Power (ignition) switch ........ 194
EV drive mode .................... 201
Hybrid transmission ............ 204
Turn signal lever ................. 213
Parking brake ...................... 214
Horn .................................... 215
2-2. Instrument cluster Gauges and meters ............ 216
Indicators and warning lights ................................. 221
Multi-information display ..... 225
Head-up display .................. 245
2-3. Operating the lights and windshield wipers
Headlight switch .................. 252
Fog light switch ................... 258
Windshield wipers and washer ....................... 260
Rear window wiper and washer ....................... 264
Headlight cleaner switch ..... 267 2-4. Using other driving systems
Cruise control ..................... 268
Dynamic radar cruise control .............................. 272
LKA (Lane-Keeping Assist) .............................. 289
Driving assist systems ........ 300
Hill-start assist control ........ 305
PCS (Pre-Collision System) ............................ 307
2-5. Driving information Cargo and luggage ............. 315
Vehicle load limits............... 320
Winter driving tips ............... 321
Trailer towing ...................... 326
Dinghy towing ..................... 327
2When driving

15
PRIUS_OM_OM47857U_DVD_(U)
Pictorial indexInstrument panel
Headlight switch
Turn signal lever
Fog light switch

P. 252
P. 213
P. 258
Pre-collision braking off switch P. 308
Parking brake pedal P. 214
Fuel filler door opener
P. 134Tire pressure warning reset switch P. 445
Windshield wipers and
washer switch
Rear window wiper and
washer switch
P. 260
P. 264
Gauges and meters
Multi-information display P. 216
P. 225
Audio system*2 P. 351
Navigation system*1
SRS driver airbag
Horn
P. 142
P. 215
SRS knee airbag P. 142
Tilt and telescopic steering control lever P. 119
: If equipped
*1: Refer to “NAVIGATION SYSTEM OWNER’S MANUAL”.
*2: Refer to “DISPLAY AUDIO SYSTEM OWNER’S MANUAL”.

23
PRIUS_OM_OM47857U_DVD_(U)
Installation of a mobile two-way radio system
The installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as:
●Multiport fuel injection system/sequential multiport fuel injection system
● Cruise control system
● Anti-lock brake system
● SRS airbag system
● Seat belt pretensioner system
Be sure to check with your Toyota dealer for precautionary measures or spe-
cial instructions regarding installation.
High voltage parts and cables on the hybrid vehicles emit approximately the
same amount of electromagnetic waves as the conventional gasoline pow-
ered vehicles or home electronic appliances despite of their electromagnetic
shielding.
Unwanted noise may occur in the reception of the mobile two-way radio.

25
PRIUS_OM_OM47857U_DVD_(U)
Event data recorder
This vehicle is equipped with an event data recorder (EDR). The main pur-
pose of an EDR is to record, in certain crash or near crash-like situations,
such as an air bag deployment or hitting a road obstacle, data that will assist
in understanding how a vehicle’s systems performed. The EDR is designed
to record data related to vehicle dynamics and safety systems for a short
period of time, typically 30 seconds or less.
The EDR in this vehicle is designed to record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and passenger safety belts were buckled/fas-tened;
• How far (if at all) the driver was depressing the accelerator and/or brake pedal; and,
• How fast the vehicle was traveling.
These data can help provide a better understanding of the circumstances in
which crashes and injuries occur.
NOTE: EDR data are recorded by your vehicle only if a nontrivial crash situa-
tion occurs; no data are recorded by the EDR under normal driving condi-
tions and no personal data (e.g., name, gender, age, and crash location) are
recorded. However, other parties, such as law enforcement, could combine
the EDR data with the type of personally identifying data routinely acquired
during a crash investigation.
To read data recorded by an EDR, special equipment is required, and access
to the vehicle or the EDR is needed. In addition to the vehicle manufacturer,
other parties, such as law enforcement, that have the special equipment, can
read the information if they have access to the vehicle or the EDR.

34 1-1. Hybrid system
PRIUS_OM_OM47857U_DVD_(U)
Vehicle proximity notification system
When driving with the gasoline engine stopped, a sound, which
changes in accordance with the dr iving speed, will be played in order
to warn people nearby of the vehicle’s approach. The sound will stop
when the vehicle speed exceeds a pproximately 15 mph (25 km/h).
■Regenerative braking
In the following situations, kinetic energy is converted to electric energy and
deceleration force can be obtained in conjunction with the recharging of the
hybrid battery (traction battery).
●The accelerator pedal is released while driving with the shift position in D
or B.
● The brake pedal is depressed while driving with the shift position in D or
B.
■ Hybrid System Indicator
Hybrid System Indicator represents the
hybrid system power output and regener-
ative charging. (
P. 226)

36 1-1. Hybrid system
PRIUS_OM_OM47857U_DVD_(U)
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able
to move. For safety, apply the parking brake and make sure to shift the shift
position to P when parked.
The following sounds or vibrations may occur when the hybrid system is
operating and are not a malfunction:
●The brake system operation sound heard from the front of the vehicle
when the driver’s door is opened.
● Motor sounds may be heard from the engine compartment.
● Sounds may be heard from the hybrid battery (traction battery) when the
hybrid system starts or stops.
● Sounds may be heard from the transmission when the gasoline engine
starts or stops, when driving at low speeds, or during idling.
● Engine sounds may be heard when accelerating sharply.
● Sounds may be heard due to regenerative braking when the brake pedal
is depressed and accelerator is loosened.
● Other sounds, such as motors and mechanical noises, may be heard
from the brake system when the brake pedal is depressed.
● Vibration may be felt when the gasoline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vent. (
P. 39)
● The operation sound of the air conditioning system (air conditioning com-
pressor, blower motor).

42 1-1. Hybrid system
PRIUS_OM_OM47857U_DVD_(U)
CAUTION
■Road accident cautions
If your vehicle is involved in an accident, observe the following precautions
to reduce the risk of death or serious injury:
●Stop the vehicle in a safe place to prevent subsequent accidents.
While depressing the brake pedal, apply the parking brake, shift the shift
position to P and turn the hybrid system off. Then, slowly release the brake
pedal.
● Do not touch the high voltage parts, cables and connectors.
● If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
● If a fluid leak occurs, do not touch the fluid as it may be strong alkaline
electrolyte from the hybrid battery (traction battery). If it comes into contact
with your skin or eyes, wash it off immediately with a large amount of water
or, if possible, boric acid solution. Seek immediate medical attention.
● If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using even
a small amount of water may be dangerous.
● If your vehicle needs to be towed, do so with front wheels raised. If the
wheels connected to the electric motor (traction motor) are on the ground
when towing, the motor may continue to generate electricity. This may
cause a fire. ( P. 491)
● Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.
■ Hybrid battery (traction battery)
Your vehicle contains a sealed nicke l-metal hydride battery. If disposed of
improperly, it is hazardous to the environment and there is a risk of severe
burns and electrical shock that may result in death or serious injury.

58
1-1. Hybrid system
PRIUS_OM_OM47857U_DVD_(U)
Hybrid vehicle driving tips
For economical and ecological driving, pay attention to the
following points:
■Using Eco drive mode
When using Eco drive mode, the torque corresponding to the
accelerator pedal depression amount can be generated more
smoothly than it is in normal conditions. In addition, the opera-
tion of the air conditioning system (heating/cooling) will be mini-
mized, improving th e fuel economy. (P. 206)
■ Use of Hybrid System Indicator
Eco-friendly driving is possible by keeping the Hybrid System
Indicator within Eco area. ( P. 226)
■ When braking the vehicle
Make sure to operate the brakes gently and in good time. A
greater amount of electrical energy can be retained when slow-
ing down.
■ Delays
Repeated acceleration and deceleration, as well as long waits at
traffic lights, will lead to bad fuel consumption. Check traffic
reports before leaving and avoid delays as much as possible.
When encountering a delay, 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 your speed and keep at a constant speed. Also, before
stopping at a toll booth or similar, allow plenty of time to release
the accelerator and gently apply the brakes. A greater amount of
electrical energy can be reta ined when slowing down.