Driving Assist Systems - Lexus RX 450h 2010 Owner's Manual

2-4. Using other driving systems

Driving assist systems

To help enhance driving safety and performance, the following systems
operate automatically in response to various driving situations. Be aware,
however, that these systems are supplementary and should not be relied
upon too heavily when operating the vehicle.
■ ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface
■
Brake assist
Generates an increased level of braking force after the brake pedal is
depressed, when the system detects a panic stop situation
■ VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning on
slippery road surfaces
■
TRAC (Traction Control)
Maintains drive power and helps to prevent any of the drive wheels from
spinning when the vehicle is started or accelerated on a slippery road sur-
face
■ Hill-start assist control
→P. 258
■
EPS (Electric Power Steering)
Employs an electric motor to reduce the amount of effort needed to turn
the steering wheel
■ Active stabilizer suspension system (if equipped)
Reduces sway when cornering according to vehicle conditions such as
steering wheel movement and vehicle speed, in order to maintain a stable
vehicle posture
■ VDIM (Vehicle Dynamics Integrated Management)
Provides integrated control of the ABS, brake assist, TRAC, VSC, hill-start
assist control, and EPS systems
Maintains vehicle stability when swerving on slippery road surfaces by
controlling the brakes and hybrid system output
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