brake sensor TOYOTA HIGHLANDER HYBRID 2017 XU50 / 3.G Quick Reference Guide

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Adjusting distance
To change the vehicle-to-
vehicle distance

Push the “
” button
to cycle through the
settings, which will change
progressively.
LONG (default setting)
MIDDLE
SHORT.
This mode employs a radar sensor to detect the presence of vehicles up to
approximately 400ft (120m) ahead, determines the current vehicle-to-vehicle
following distance and operates to maintain a suitable following distance from the
vehicle ahead.
(1) Constant speed cruising when there are no vehicles ahead
The vehicle travels at the speed set by the driver. The desired vehicle-to-
vehicle distance can also be set by operating the vehicle-to-vehicle distance
control.
(2) Deceleration cruising and follow-up cruising when a preceding vehicle
driving slower than the set speed appears
When a vehicle is detected running ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle speed is
necessary, the system applies the brakes (the stop lights will come on at this
time). The system will respond to changes in the speed of the vehicle ahead in
order to maintain the vehicle-to-vehicle distance set by the driver. A warning
tone warns you when the system cannot decelerate sufficiently to prevent your
vehicle from closing in on the vehicle ahead. Note: Vehicle-to-vehicle distance may lessen when traveling on long downhill
slopes.
(1) (2) (2) (3)
Preceding
vehicle mark
FEATURES/OPERATIONS

24

Pre-Collision System (PCS) (if equipped)
The Pre-Collision System uses a radar sensor and camera sensor to help detect
vehicles and pedestrians in front of your vehicle. If the system determines that
the possibility of a frontal collision with a vehicle or pedestrian is high, the system
warns the driver to take evasive action while the potential brake pressure is
increased to help the driver avoid collision or reduce the impact to the vehicle and
its occupants.
Note: PCS is enabled each time the engine switch is turned to Ignition On. The
system can be disabled/enabled and the warning timing of the system can be
changed.
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 collision 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 collision is high, the
system warns the driver. If the system determines that the possibility of a collision
is extremely high, the brakes are automatically applied to help avoid the collision
or reduce the collision speed.

Disabling the Pre-Collision System (PCS)
Enabled
Disabled
FEATURES/OPERATIONS

36
SAFETY AND EMERGENCY FEATURES
Star Safety SystemTM
VSC helps prevent loss of traction during cornering by reducing engine power and
applying brake force to selected wheels.
Toyota’s VSC monitors steering angle and the direction your vehicle is traveling.
When it senses that the front or rear wheels begin to lose traction, VSC reduces
engine power and applies braking to selected wheels. This helps restore traction
and vehicle control.
Vehicle Stability Control (VSC)
Anti-Lock Brake System (ABS)
Brake Assist (BA)
ABS helps prevent brakes from locking up by “pulsing” brake pressure to each
wheel. This limits brake lockup and helps provide directional control for the
current road conditions.
Toyota’s ABS sensors detect which wheels are locking up and limits wheel lockup
by “pulsing” each wheel’s brakes independently. Pulsing releases brake pressure
repeatedly for fractions of a second. This helps the tires attain the traction that
current road conditions will allow, helping you to stay in directional control.
Brake Assist is designed to detect sudden or “panic” braking, and then add braking
pressure to help decrease the vehicle’s stopping distance. When there’s only a
split second to react, Brake Assist can add additional brake pressure more quickly
than just the driver alone can. VSC helps prevent loss of traction during cornering by reducing engine power, and
Traction Control helps maintain traction on loose gravel and wet, icy, or uneven
surfaces by applying brake force to the spinning wheel(s).
Toyota’s TRAC sensors are activated when one of the drive wheels starts to slip.
TRAC limits engine output and applies the brakes to the spinning wheel. This
transfers power to the wheels that still have traction to help keep you on track.
Traction Control (TRAC)
Electronic Brake Force Distribution (EBD)
Toyota’s ABS technology has Electronic Brake-force Distribution (EBD) to help
maintain control and balance when braking. Abrupt stops can cause a vehicle
to tilt forward, reducing the braking power of the rear wheels. EBD responds to
sudden stops by redistributing brake force to enhance the braking effectiveness of
all four wheels. All new Toyota vehicles come standard with the Star Safety System
TM, which
combines Vehicle Stability Control (VSC), Traction Control (TRAC), Anti-lock
Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA)
and Smart Stop Technology (SST).