Subaru 2009 Impreza - Manual (Page 283)

8-10
Driving tips
windshield or rear window. If the wiper
blades are frozen to the windshield or rear
window, use the defroster with the airflow
control dial in the
“ ” position and the
temperature control dial set for maximum
warmth until the wiper blades are com-
pletely thawed out. Refer to
“Climate
control ” F4-1. If your vehicle is equipped
with a wiper deicer, it is helpful to thaw the
windshield wiper blades. Refer to
“Wind-
shield wiper deicer ” F3-43. To thaw out
the rear wiper blade, use the rear window
defogger. Refer to
“Rear window defogger
button ” F3-41.
When driving in snow, if frozen snow starts
to stick on the surface of the windshield
despite wiper operation, use the defroster
with the airflow control dial in
“ ” and the
temperature control dial set for maximum
warmth. After the windshield gets warmed
enough to melt the frozen snow on it,
wash it away using the windshield washer.
Snow stuck on the wiper arm prevents the
wiper from working effectively. If snow is
stuck on the wiper arm, pull off the road to
a safe place, then remove it. If you stop
the vehicle at road side, use the hazard
warning flasher to alert other drivers.
We recommend use of non-freezing type
wiper blades (winter blades) during the
seasons you could have snow and sub-
zero temperatures. Blades of this type
give superior wiping performance in
snowy conditions. Be sure to use blades
that are suitable for your vehicle.
CAUTION
During high-speed driving, non-
freezing type wiper blades may not
perform as well as standard wiper
blades. If this happens, reduce the
vehicle speed.
NOTE
When the season requiring non-freez-
ing type wiper blades is over, replace
them with standard wiper blades.
& Corrosion protection
Refer to “Corrosion protection” F10-4.
& Snow tires
WARNING
. When replacing original tires with
winter (snow) tires, make sure
you use only the same size,
construction and load range as
the original tires listed on the tire
placard. Using other sizes and
construction may affect speed-
ometer/odometer calibration and
clearance between the body and
tires. It also may be dangerous
and lead to loss of vehicle con-
trol.
. You must install four winter tires
that are of the same size, con-
struction, brand, and load range.
Mixing other sizes or construc-
tions may result in severe me-
chanical damage to the drive
train of your vehicle and may
affect ride, handling, braking and
speedometer/odometer calibra-
tion. It also may be dangerous
and lead to loss of vehicle con-
trol.
. Do not use a combination of
radial, belted bias or bias tires
since it may cause dangerous
handling characteristics and lead
to an accident.
! Except WRX STI
Your vehicle is equipped with
“all season
tires ” as original equipment, which are
designed to provide an adequate measure
of traction, handling and braking perfor-
mance in year-round driving. In winter, it
may be possible to enhance performance