Subaru 2005 Legacy - Manual (Page 227)

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Instruments and controls
Windshield wiper deicer (if equipped)
The windshield wiper deicer operates only when the
ignition switch is in the “ON” position.
Before turning on the windshield wiper deicer, remove
any snow from the windshield. To turn on the wind-
shield wiper deicer, push the button. The indicator light
located on the button lights up while the windshield
wiper deicer is operating.
The windshield wiper deicer will automatically shut off
after about 15 minutes. If the windshield wiper blades
have been deiced completely before that time, push
the button to turn it off. It also turns off when the igni-
tion switch is turned to the “ACC” or “LOCK” position.
If deicing is not complete, you have to push the button
to turn the deicer on again.
Your SUBARU dealer can set your windshield wiper
deicer for continuous operation. Contact your SUBA-
RU dealer for details.
Once the windshield wiper deicer has been set for
continuous operation, pressing the button results in
continuous operation. The windshield wiper deicer au-
tomatically stops operating if any one of the following
conditions occurs during continuous operation.
"
The outside temperature becomes 41 °F (5°C) or
higher.
"
The vehicle speed remains at 9 mph (15 km/h) or
lower for 15 minutes.
"
The battery voltage decreases below the permissi-
ble level.
UB3213BA