Toyota SIENNA 2022 Manual page 336

VSC (Vehicle Stability Con-
■
trol)
Helps the driver to control skid-
ding when swerving suddenly or
turning on slippery road sur-
faces.
Enhanced VSC (Enhanced
■
Vehicle Stability Control)
Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintain directional
stability when swerving on slip-
pery road surfaces by con-
trolling steering performance.
Trailer Sway Control
■
Helps the driver to control trailer
sway by selectively applying
brake pressure for individual
wheels and reducing driving
torque when trailer sway is
detected.
TRAC (Traction Control)
■
Helps to maintain drive power
and prevent the drive wheels
from spinning when starting the
vehicle or accelerating on slip-
pery roads
Active Cornering Assist
■
(ACA)
Helps to prevent the vehicle
from drifting to the outer side by
performing inner wheel brake
control when attempting to
accelerate while turning
Hill-start assist control
■
Helps to reduce the backward
4-5. Using the driving support systems
movement of the vehicle when
starting on an uphill
■
Employs an electric motor to
reduce the amount of effort
needed to turn the steering
wheel.
■
Automatically controls the drive
system such as to front-wheel
drive or AWD (all wheel drive)
according to various running
conditions including normal driv-
ing, during cornering, on a
uphill, when starting off, during
acceleration, on a slippery roads
due to snow or rain, thus con-
tributing to stable operability and
driving stability.
■
When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically
controlled to reduce the vehicle
speed and help reduce the pos-
sibility of further damage due to
a secondary collision.
■ When the
TRAC/VSC/ABS/Trailer Sway
Control systems are operating
The slip indicator light will flash
while the TRAC/VSC/ABS/Trailer
Sway Control systems are operat-
ing.
EPS (Electric Power Steer-
ing)
E-Four (Electronic On-
Demand AWD system)
(AWD models)
The Secondary Collision
Brake
335
4