Subaru WRX & WRX STI Manuals 2011 Impreza WRX & WRX STI Owner's Manual | Page 297

Starting and operating

namics 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. Activation of this function is indicated by
flashing of the Vehicle Dynamics Control
operation indicator light.

NOTE
. Slight twitching of the brake pedal
may be felt when the Vehicle Dynamics
Control system operates; a small degree of vehicle or steering wheel shaking may also be noticed in this situation. These are normal characteristics
of Vehicle Dynamics Control operation
and are no cause for alarm.
. When driving off immediately after
starting the engine, a short-lived operation noise may be noticed coming from
the engine compartment. This noise is
generated as a result of a check being
performed on the Vehicle Dynamics
Control system and is normal.
. Depending on the timing of activation of the brakes, the brake pedal may
seem to jolt when you drive off after
starting the engine. This is a consequence of the Vehicle Dynamics Control operational check and is normal.

. In the circumstances listed in the
following, the vehicle may be more
unstable 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.
. Even if the vehicle is equipped with
a Vehicle Dynamics Control system, it
is important that winter tires be used
when driving on snow-covered or icy
roads. (All four wheels should be fitted
with tires of the same size and brand.)
. It is always important to reduce
speed when approaching a corner,
even if the vehicle is equipped with
Vehicle Dynamics Control.
. 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. If
these precautions are not observed

7-35

and non-matching tires are used, it is
quite possible that the Vehicle Dynamics Control system will be unable
to operate correctly as intended.
. Always turn off the engine before
replacing a tire as failure to do so may
render the Vehicle Dynamics Control
system unable to operate correctly.

& Vehicle Dynamics Control
system monitor
Refer to “Vehicle Dynamics Control operation indicator light” F3-23 and “Vehicle
Dynamics Control warning light/Vehicle
Dynamics Control OFF indicator light/
Traction Control OFF indicator light (STI)”
F3-23.

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