Subaru WRX & WRX STI Manuals 2015 WRX & WRX STI Owner's Manual | Page 365

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Starting and operating/Vehicle Dynamics Control system

Vehicle Dynamics Control
system
WARNING
Always use the utmost care in
driving – overconfidence because
you are driving a vehicle with the
Vehicle Dynamics Control system
could easily lead to a serious accident.

CAUTION
. Even if your vehicle is equipped
with Vehicle Dynamics Control
system, winter tires should be
used when driving on snow-covered or icy roads; in addition,
vehicle speed should be reduced
considerably. Simply having a
Vehicle Dynamics Control system does not guarantee that the
vehicle will be able to avoid
accidents in any situation.
. Activation of the Vehicle Dynamics Control system is an
indication that the road being
travelled on has a slippery surface; since having Vehicle Dy-

namics Control is no guarantee
that full vehicle control will be
maintained at all times and under
all conditions, its activation
should be seen as a sign that
the speed of the vehicle should
be reduced considerably.
. Whenever suspension components, steering components, or
an axle are removed from a
vehicle, have an inspection of
that system performed by an
authorized SUBARU dealer.
. The following precautions should
be observed in order to ensure
that the Vehicle Dynamics Control system is operating properly:
– All four wheels should be
fitted with tires of the same
size, type, and brand. Furthermore, the amount of wear
should be the same for all
four tires.
– Keep the tire pressure at the
proper level as shown on the
vehicle placard attached to
the driver’s side door pillar.
– Use only the specified temporary spare tire to replace a
flat tire. With a temporary
spare tire, the effectiveness

of the Vehicle Dynamics Control system is reduced and
this should be taken into account when driving the vehicle in such a condition.
. If non-matching tires are used,
the Vehicle Dynamics Control
system 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 system unless it is absolutely necessary. If you must turn off the
Vehicle Dynamics Control system, drive very carefully according 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 engine’s 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 spin