Star Safety System - Toyota PRIUS c 2018 Quick Reference Manual

SAFETY & EMERGENCY FEATURES

Star Safety System

All new Toyota vehicles come standard with the Star Safety System
combines Anti-lock Braking System (ABS), Brake Assist (BA), Electronic Brake-
force Distribution (EBD), Smart Stop Technology (SST), Traction Control (TRAC) and
Vehicle Stability Control (VSC),
Refer to the Owner's Manual for more details and important information on limitations
to these systems.
ANTI-LOCK BRAKE SYSTEM (ABS)
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 (BA)
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.
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.
SMART STOP TECHNOLOGY (SST)
Smart Stop Technology automatically reduces engine power when the accelerator
and brake pedals are pressed simultaneously under certain conditions.
SST engages when the accelerator is depressed first and the brakes are applied
firmly for longer than one-half second at speeds greater than five miles per hour.
SST doesn't engage if the brake pedal is depressed before the accelerator pedal,
allowing vehicles to start on a steep hill and safely accelerate without rolling
backward.
TRACTION CONTROL (TRAC)
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.
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