User Manual - Page 387

For 2018 WRX WRX PREMIUM.

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(400,1)
Model "A1700BE-B" EDITED: 2017/ 10/ 11
should be taken into account
when driving the vehicle in
such a condition.
. If you use non-matching tires, the
Vehicle Dynamics Control sys-
tem may not operate correctly.
. The Vehicle Dynamics Control
system helps prevent unstable
vehicle motion such as skidding
using control of the brakes and
engine power. Do not turn off the
Vehicle Dynamics Control sys-
tem unless it is absolutely neces-
sary. If you must turn off the
Vehicle Dynamics Control sys-
tem, drive very carefully accord-
ing to the road surface condition.
In the event of wheelspin and/or skidding
on a slippery road surface and/or during
cornering and/or an evasive maneuver,
the Vehicle Dynamics Control system
adjusts the engines output and the
wheels respective braking forces to help
maintain traction and directional control.
. Traction Control Function
The traction control function is designed to
prevent spinning of the driving wheels on
slippery road surfaces, thereby helping to
maintain traction and directional control.
Activation of this function is shown by
flashing the Vehicle Dynam ics Control
operation indicator light.
. Skid Suppression Function
The skid suppression function is designed
to help maintain directional stability by
suppressing the wheels tendency to slide
sideways during steering operations. Acti-
vation of this function is shown by flashing
of the Vehicle Dynamics Control operation
indicator light.
Vehicle Dynamics Control operation indi-
cator light
NOTE
. The Vehicle Dynamics Control sys-
tem may be considered normal when
the following conditions occur.
Slight twitching of the brake
pedal is felt.
The vehicle or steering wheel
shakes to a small degree.
An operating sound from the
engine compartment is heard briefly
when starting the engine and when
driving off after starting the engine.
The brake pedal seems to jolt
when driving off after starting the
engine.
. In the circumstances shown in the
following list, the vehicle may be less
stable than it feels to the driver. The
Vehicle Dynamics Control System may
therefore operate. Such operation does
not indicate a system malfunction.
on gravel-covered or rutted roads
on unfinished roads
when the vehicle is fitted with
snow tires or winter tires
. Activation of the Vehicle Dynamics
Control system will cause operation of
the steering wheel to feel slightly
different compared to that for normal
conditions.
. It is always important to reduce
speed when approaching a corner,
even if your vehicle is equipped with
the Vehicle Dynamics Control system.
. Always turn off the engine before
replacing a tire. Failure to do so may
render the Vehicle Dynamics Control
Starting and operating/Vehicle Dynamics Control system
7-38
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