brake sensor TOYOTA PRIUS 2023 Owners Manual

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PRIUS_OM_OM47F32E_(EE)
4-1. Before driving
Driving the vehicle .............220
Cargo and luggage ............231
Trailer towing
(2WD models)..................233
Trailer towing
(AWD models) .................243
4-2. Driving procedures
Power (ignition) switch .......244
EV drive mode ...................250
Hybrid transmission ...........253
Turn signal lever ................259
Parking brake.....................260
4-3. Operating the lights
and wipers
Headlight switch.................261
AHB (Automatic High
Beam) ..............................266
Fog light switch ..................270
Windshield wipers and
washer .............................271
Rear window wiper and
washer .............................275
4-4. Refueling
Opening the fuel tank
cap ...................................277
4-5. Using the driving
support systems
Toyota Safety Sense ......... 282
PCS (Pre-Collision
System) ........................... 296
LTA
(Lane Tracing Assist) ...... 307
RSA (Road Sign Assist) .... 323
Dynamic radar cruise
control with full-speed
range ............................... 329
Cruise control .................... 346
Driving mode select
switch .............................. 351
Speed limiter ..................... 353
BSM
(Blind Spot Monitor) ........ 356
• The Blind Spot Monitor
function ......................... 372
• The Rear Crossing
Traffic Alert function ...... 375
Toyota parking
assist-sensor ................... 381
Parking Support Brake
function ........................... 394
S-IPA (Simple Intelligent
Parking Assist
System) ........................... 405
GPF (Gasoline Particulate
Filter) system .................. 440
Driving assist systems....... 441
4-6. Driving tips
Hybrid vehicle driving
tips .................................. 449
Winter driving tips.............. 452
4Driving

1542. Instrument cluster
PRIUS_OM_OM47F32E_(EE)■
Settings table
ItemSettingsSetting result
*1“On”
Turns the LTA (Lane Tracing Assist) lane
centering function on and off. (P. 307)
“Off”
*1“On”
Turns the LTA (Lane Tracing Assist) steer-
ing assist function on and off. (P. 307)
“Off”
*1“High”Switches the LTA (Lane Tracing Assist)
alert sensitivity. (P. 307)
“Standard”
*1“On”Turns the PCS (Pre-Collision System) on
and off. (P. 300)
“Off”
*1
Early
Switches the PCS (Pre-Collision System)
warning timing. (P. 300)Middle
Late
*1“On”Turns the Toyota parking assist-sensor on
and off. (P. 381)
“Off”
*1“On”Turns the Parking Support Brake function
on and off. (P. 396)
“Off”
*1“On”Turns the Blind Spot Monitor on and off.
(P. 357)
“Off”
*1“On”Turns the LTA (Lane Tracing Assist) vehicle
sway warning on and off. (P. 307)
“Off”
*1
“High”
Switches the LTA (Lane Tracing Assist)
vehicle sway warning sensitivity. (P. 3 0 7 )“Standard”
“Low”
*1HeightChanges the display position and bright-
ness of the head-up display. (P. 162)
Brightness
*1“On”Turns the RSA (Road Sign Assist) on and
off. (P. 323)
“Off”
*1“On” Turns the Dynamic Radar Cruise Control
with Road Sign Assist on and off.
(P. 341)
“Off”

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4Driving
PRIUS_OM_OM47F32E_(EE)4-1. Before driving
Driving the vehicle ............. 220
Cargo and luggage ............ 231
Trailer towing
(2WD models).................. 233
Trailer towing
(AWD models) ................. 243
4-2. Driving procedures
Power (ignition) switch ....... 244
EV drive mode ................... 250
Hybrid transmission ........... 253
Turn signal lever ................ 259
Parking brake .................... 260
4-3. Operating the lights
and wipers
Headlight switch ................ 261
AHB (Automatic High
Beam) .............................. 266
Fog light switch .................. 270
Windshield wipers and
washer ............................. 271
Rear window wiper and
washer ............................. 275
4-4. Refueling
Opening the fuel tank
cap ................................... 2774-5. Using the driving
support systems
Toyota Safety Sense ......... 282
PCS (Pre-Collision
System) ........................... 296
LTA
(Lane Tracing Assist)....... 307
RSA (Road Sign Assist)..... 323
Dynamic radar cruise
control with full-speed
range ............................... 329
Cruise control..................... 346
Driving mode select
switch............................... 351
Speed limiter ...................... 353
BSM
(Blind Spot Monitor) ......... 356
• The Blind Spot Monitor
function .......................... 372
• The Rear Crossing
Traffic Alert function ...... 375
Toyota parking
assist-sensor ................... 381
Parking Support Brake
function ............................ 394
S-IPA (Simple Intelligent
Parking Assist
System) ........................... 405
GPF (Gasoline Particulate
Filter) system ................... 440
Driving assist systems ....... 441
4-6. Driving tips
Hybrid vehicle driving
tips ................................... 449
Winter driving tips .............. 452

2634-3. Operating the lights and wipers
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Driving
PRIUS_OM_OM47F32E_(EE)
This system allows the headlights and front position lights to be turned
on for 30 seconds when the power switch is off.
Pull the lever toward you and
release it with the light switch in
the or position after
turning the power switch off.
Pull the lever toward you and
release it again to turn off the
lights.
■ Daytime running light system
To make your vehicle more visible to other drivers during daytime driving, the
daytime running lights turn on automatically whenever the hybrid system is
started and the parking brake is released with the headlight switch in the
or position. Daytime running lights are not designed for use at
night.
■ Headlight control sensor
Extended Headlight Lighting system
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.
Air conditioning operation may also be
interrupted.

2964-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
PCS (Pre-Collision System)
The system can detect the following:
●Ve hi cl e s
●Bicyclists
●Pedestrians
: If equipped
The pre-collision system uses a radar sensor and front camera
to detect objects (P. 296) in front of the vehicle. When the sys-
tem determines that the possibility of a frontal collision with an
object is high, a warning operates to urge the driver to take eva-
sive action and the potential brake pressure is increased to help
the driver avoid the collision. If the system determines that the
possibility of a frontal collision with an object is extremely high,
the brakes are automatically 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. 300)
Detectable objects

3064-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)• While driving on a curve and for a few seconds after driving on a curve
• If your vehicle is skidding
• If the wheels are misaligned
• If a wiper blade is blocking the front camera
• The vehicle is being driven at extremely high speeds
• When driving on a hill
• If the radar sensor or front camera is misaligned
●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 VSC is disabled
●If VSC is disabled (P. 443), the pre-collision brake assist and pre-collision
braking functions are also disabled.
●The PCS warning light will turn on and “VSC Turned Off Pre-Collision Brake
System Unavailable” will be displayed on the multi-information display. • If the front of the vehicle is raised or
lowered

3424-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
■Dynamic radar cruise control with full-speed range can be set when
●The shift position is in D.
●The desired set speed can be set when the vehicle speed is approximately
30 km/h (20 mph) or more.
(However, when the vehicle speed is set while driving at below approxi-
mately 30 km/h [20 mph], the set speed will be set to approximately 30 km/h
[20 mph].)
■Accelerating after setting the vehicle speed
The vehicle can accelerate by operating the accelerator pedal. After acceler-
ating, the set speed resumes. However, during vehicle-to-vehicle distance
control mode, the vehicle speed may decrease below the set speed in order
to maintain the distance to the preceding vehicle.
■When the vehicle stops while follow-up cruising
●Pushing the lever up while the vehicle ahead stops will resume follow-up
cruising if the vehicle ahead starts off within approximately 3 seconds after
the lever is pushed up.
●If the vehicle ahead starts off within 3 seconds after your vehicle stops, fol-
low-up cruising will be resumed.
■Automatic cancelation of vehicle-to-vehicle distance control mode
Vehicle-to-vehicle distance control mode is automatically canceled in the fol-
lowing situations.
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
●The sensor cannot detect correctly because it is covered in some way.
●When the brake control or output restriction control of a driving support sys-
tem operates. (For example: Pre-Collision System, Drive-Start Control)
●The parking brake is operated.
●The vehicle is stopped by system control on a steep incline.
●The following are detected when the vehicle has been stopped by system
control:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3 minutes.
The shift position may automatically change to P. (P. 256)
If vehicle-to-vehicle distance control mode is automatically canceled for any
reasons other than the above, there may be a malfunction in the system.
Contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.

3444-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)■When the sensor may not be correctly detecting the vehicle ahead
In the case of the following and depending on the conditions, operate the
brake pedal when deceleration of the system is insufficient or operate the
accelerator pedal when acceleration is required.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (P. 339) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the same lane
●Vehicles with small rear ends (trailers with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
●Preceding vehicle has an extremely high
ground clearance

3454-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)■Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions, operate the brake pedal (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system
may not operate properly.
●When the vehicle ahead of you decelerates suddenly
●When driving on a road surrounded by a structure, such as in a tunnel or on
a bridge
●While the vehicle speed is decreasing to the set speed after the vehicle
accelerates by depressing the accelerator pedal ●When the road curves or when the lanes
are narrow
●When steering wheel operation or your
position in the lane is unstable

3894-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
■ Objects which the system may not properly detect
The shape of the object may prevent the sensor from detecting it. Pay partic-
ular attention to the following objects:
● Wires, fences, ropes, etc.
● Cotton, snow and other materials that absorb sound waves
● Sharply-angled objects
● Low objects
● Tall objects with upper sections projecting outwards in the direction of your
vehicle
■ Situations in which the system may not operate properly
Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctly detect objects. Particular instances where this
may occur are listed below.
● There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors
will resolve this problem.)
● A sensor is frozen. (Thawing the area will resolve this problem.) In espe-
cially cold weather, if a sensor is frozen the sensor display may be displayed
abnormally, or objects, such as a wall, may not be detected.
● On an extremely bumpy road, on an incline, on gravel, or on grass.
● When vehicle horns, vehicle detectors, motorcycle engines, air brakes of
large vehicles, the clearance sonar of ot her vehicles or other devices which
produce ultrasonic waves are near the vehicle
● A sensor is coated with a sheet of spray or heavy rain.
● If objects draw too close to the sensor.
● When a pedestrian is wearing clothing that does not reflect ultrasonic waves
(ex. skirts with gathers or frills).
● When objects that are not perpendicular to the ground, not perpendicular to
the vehicle traveling direction, uneven, or waving are in the detection range.
● Strong wind is blowing
● When driving in inclement weather such as fog, snow or a sandstorm
● When an object that cannot be detected is between the vehicle and a
detected object
● If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in front
of the vehicle or runs out from the side of the vehicle
● When a sensor or the area around a
sensor is extremely hot or cold.