2016 TOYOTA PRIUS C brake sensor

2194-5. Using the driving support systems
4
Driving
PRIUS c_U (OM52F96U)
The pre-collision system is equipped with a sophisticated computer
that will record certain data, such as: • Accelerator status
•Brake status
• Vehicle speed
• Operation status of the pr e-collision system functions
• Information (such as the distanc e and relative speed between your
vehicle and the vehicle ahead or other objects)
• Images from the front sensor (ava ilable only when the pre-collision
braking function was operating)
The pre-collision sy stem does not record conversations or other
sounds and does not record images of the inside of the vehicle.
● Data usage
Toyota may use the data recorded in this computer to diagnose
malfunctions, conduct research and development, and improve
quality.
Toyota will not disclose the reco rded data to a third party except:
• With the consent of the vehicle owner or with the consent of the lessee if the vehicle is leased
• In response to an official request by the police, a court of law or a
government agency
• For use by Toyota in a lawsuit
• For research purposes where the data is not tied to a specific vehicle or vehicle owner
● Recorded images can be erased using a specialized device.
The image recording function can be disabled. However, if the func-
tion is disabled, data from when the pre-collision system operates
will not be available.
Vehicle data recording

2244-5. Using the driving support systems
PRIUS c_U (OM52F96U)
◆Pre-collision warning
When the system determines
that the possibility of a frontal
collision is high, a buzzer will
sound and a warning message
will be displayed on the multi-
information display to urge the
driver to take evasive action.
◆Pre-collision brake assist
When the system determines that the possibility of a frontal colli-
sion with a vehicle is high, the system applies greater braking force
in relation to how strongly the brake pedal is depressed.
◆Pre-collision braking
When the system determines that the possibility of a frontal colli-
sion with a vehicle is high, the sy stem warns the driver. If the sys-
tem determines that the possibility of a collision is extremely high,
the brakes are automatically appli ed to help avoid the collision or
reduce the collision speed.
PCS (Pre-Collision System)
: If equipped
The pre-collision system uses the front sensor to detect vehi-
cles in front of your vehicle. When the system determines that
the possibility of a frontal collisi on with a vehicle is high, a warn-
ing operates to urge the driver to take evasive action and the
potential brake pressure is increased to help the driver avoid the
collision. If the system determin es that the possibility of a fron-
tal collision with a vehicle is extremely high, the brakes are auto-
matically applied to help avoid the collision or help reduce the
impact of the collision.
The pre-collision system can be disabled/enabled and the warning
timing can be changed. ( P. 227)

2354-5. Using the driving support systems
4
Driving
PRIUS c_U (OM52F96U)• If the wheels are misaligned
• If a wiper blade is blocking the front sensor
• The vehicle is wobbling.
• The vehicle is being driven at extremely high speeds.
• When driving on roads with sharp bends or uneven surfaces
• When a preceding vehicle is a poor reflector of laser
● In some situations such as the following, sufficient braking force may not be
obtained, preventing the system from performing properly:
• If the braking functions cannot operate to their full extent, such as when
the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly maintained (brakes or tires are excessively worn, improper tire inflation pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery sur- face
• If your vehicle is skidding
• When the front part of the vehicle is
raised or lowered
• When the sensor is misaligned due to a strong impact being applied to the
sensor, etc.

2364-5. Using the driving support systems
PRIUS c_U (OM52F96U)■
If the PCS warning light flashes a nd a warning message is displayed on
the multi-information display
The pre-collision system may be temporarily unavailable or there may be a
malfunction in the system.
● In the following situations, the warning light will turn off, the message will
disappear and the system will become operational when normal operating
conditions return:
• When the area around the front sensor is hot, such as in the sun
• When the windshield is fogged up or covered with condensation or ice
(P. 372)
• When the front sensor or the area around either sensor is cold, such as in an extremely cold environment
• If the area in front of the front sensor is obstructed, such as when the hood is open
● If the PCS warning light continues to flash or the warning message does not
disappear, the system may be malfunctioning. Have the vehicle inspected
by your Toyota dealer immediately.
■ If VSC is disabled
●If TRC and VSC are disabled (P. 262), the pre-collision brake assist and
pre-collision braking functions are also disabled. However, the pre-collision
warning function will still operate.
● The PCS warning light illuminate s and “VSC TURNED OFF PRE-COLLI-
SION BRAKE SYSTEM UNAVAILABLE” is displayed on the multi-informa-
tion display.

4768-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
*1: Brake system warning buzzer: When there is a possible problem that could affect braking performance,
the warning light will come on and a warning buzzer will sound.
*2: Parking brake engaged warning buzzer P. 200
(If equipped)
PCS warning light When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Collision system)
 Have the vehicle inspected by your Toyota dealer
immediately.
When the warning light flashes (and a buzzer does not
sound):
Indicates that the PCS (Pre-Collision system) is tempo-
rarily unavailable, possibly due to either of the following:
• The part of the windshield around the front sensor being dirty, fogged up or covered with condensation, ice, stick-
ers, etc.
 Clear the dirt, fog, conden sation, ice, stickers, etc.
( P. 222)
• Front sensor temperature being outside of its opera-
tional range
 Wait for a while until the area around the front sensor
has cooled down sufficiently.
When the warning light is illuminated:
Either the VSC (Vehicle Stability Control) system or PCS
(Pre-Collision system) is disabled or both are disabled.
 To enable the PCS, enable both the VSC system and
PCS. ( P. 227, 262)
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as
• Natural causes ( P. 478)
• Flat tire ( P. 497)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case
the light does not turn off even if the tire inflation
pressure is adjusted, have the system checked by
your Toyota dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system
(  P. 479)
 Have the system checked by your Toyota dealer.
Warning lightWarning light/Details/Actions

4898-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52F96U)Indicates that the TRAC (Traction Control) sys-
tem has been deactivated

Turn the TRAC on. ( P. 262)
Indicates that the accelerator and brake pedals
are being depressed simultaneously, and the
Brake Override System is operating. ( P. 167)
 Release the accelerator or brake pedal.
Indicates that the shift lever is shifted while the
accelerator pedal is being depressed
A buzzer also sounds.
 Release the accelerator pedal.
(If equipped)
The system is temporarily canceled because the
operating conditions of the front sensor (tempera-
ture, etc.) are not met.
The following systems may be suspended:
• PCS (Pre-Collision system) (if equipped)
• LDA (Lane Departure Alert) (if equipped)
• Automatic High Beam (if equipped)
The system can be operated when the
operating conditions of the front sensor
(temperature, etc.) are met. Turn the system
off, wait for a while, and then turn the sys-
tem back on.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)

581Alphabetical index
PRIUS c_U (OM52F96U)
Floor mat .................................... 24
FluidBrake .................................... 532
Washer ................................. 423
Fog lights
Replacing light bulbs............. 458
Switch ................................... 205
Front fog lights
Replacing light bulbs............. 458
Switch ................................... 205
Front passenger occupant
classification system .............. 50
Front passenger’s seat belt reminder light ................. 475
Front seats Adjustment ............................ 145
Front sensor............................. 220
Automatic High Beam ........... 220
LDA (Lane Departure Alert)........ 220
PCS (Pre-Collision System)........ 220
Precautions ........................... 221
Front side marker lights Replacing light bulbs............. 453
Switch ................................... 201
Wattage ................................ 534
Front turn signal lights Replacing light bulbs............. 455
Switch ................................... 199
Wattage ................................ 534
Fuel Capacity ................................ 528
Fuel gauge .............................. 91
Information ............................ 535
Refueling............................... 214
Type ...................................... 528
Fuel door .................................. 214
Fuel filler door.......................... 214
Fuses ........................................ 447 Gauges ....................................... 91
Glove box ................................. 383
Hazard lights
Switch ................................... 462
Head restraints Adjusting .............................. 150
Headlights Replacing light bulbs ............ 458
Switch ................................... 201
Heaters Seat heaters ......................... 378
Side mirrors .......................... 372
Hill-start assist control ........... 261
Hood ......................................... 412
Horn .......................................... 153
Hybrid system Emergency shut off system .... 77
Energy monitor/consumption screen ........... 108
High voltage components ....... 76
Hybrid system indicator ........ 102
“POWER” switch................... 186
Vehicle Proximity Notification System .............. 72
FG
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