This feature is used to prevent ice from building up on the windshield and wiper blades.
On/off
The windshield wiper de-icer will automatically turn off after approximately 15 minutes. Pressing the switch again also turns the de-icer off.

Operating conditions
The engine switch is in the “on” position.
The engine switch is in ignition on mode.
Caution
When the windshield wiper de-icer is on
Do not touch the lower part of the windshield or the side of the front pillars, as the surfaces can become very hot and burn you.
Rear window and outside rear view mirror defoggersDiagnostic trouble code chart
Look for output diagnostic trouble codes (dtcs) (from the
dtc checks) in the appropriate section's diagnostic trouble
code chart. Use the chart to determine the trouble area and
the proper inspection procedure. A description of each of the
chart's columns are below.
Item
Description
...
Problem symptoms table
Hint:
Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms are
listed in order of probability in the "suspected area" column of
the table. Check each symptom by checking the suspected
areas in the order they are listed. Replace p ...
Exhaust gas precautions
Harmful substance to the human body is included in exhaust
gases if inhale.
Caution
Exhaust gases include harmful carbon monoxide (co), which is colorless and
odorless. Observe the following precautions.
Failure to do so may cause exhaust gases enter the vehicle and may lead to
an accident c ...