This feature is used to prevent ice from building up on the windshield and wiper blades.

Turns the windshield wiper deicer on/off
The windshield wiper de-icer will automatically turn off after approximately 15 minutes.
The windshield wiper de-icer can be operated when Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The “ENGINE START STOP” 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 defoggersClearance Warning Buzzer Circuit
DESCRIPTION
The clearance warning buzzer sounds to alert the driver. The sounding pattern
changes depending on the distance to an obstacle.
WIRING DIAGRAM
PROCEDURE
1.
CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU ASSEMBLY - ...
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Inspect the window defogger system after confirming that the back door
power window system of the power window control system is operating normally.
Use these procedures to troubleshoot the window defogger sys ...