Buick LaCrosse: Rear Window Defogger - Automatic Climate Control System - Climate Control Systems - Climate Controls - Buick LaCrosse Owners ManualBuick LaCrosse: Rear Window Defogger

Press to turn the rear window (Rear Window Defogger):

Press to turn the rear window defogger on or off.

The rear window defogger turns off automatically after about 10 minutes. If turned on again it runs for about five minutes before turning off. The defogger can also be turned off by turning the ignition to ACC/ACCESSORY or LOCK/OFF.

The rear window defogger can be set to automatic operation. See “Climate and Air Quality” under Vehicle Personalization. When auto rear defog is selected, the rear window defogger turns on automatically when the interior temperature is cold and the outside temperature is about 4°C (40°F) and below. The auto rear defogger turns off automatically after about 10 minutes, or after five minutes if the outside temperature is not as cold.

For vehicles with heated outside rearview mirrors, they turn on when the rear window defogger button is on and help to clear fog or frost from the surface of the mirror. See Heated Mirrors.

Notice:
Do not try to clear frost or other material from the inside of the front windshield and rear window with a razor blade or anything else that is sharp. This may damage the rear window defogger grid and affect your radio's ability to pick up stations clearly. The repairs would not be covered by your warranty.

Remote Start Climate Control Operation (If Equipped): When the vehicle is started remotely, the climate control system will use the last setting before the vehicle shut off. If automatic operation was set, the fan speed will adjust to maximize heating or cooling.

If manual operation was set, the fan speed will be limited to the last setting. In extreme temperatures, the system may not be able to heat or cool the vehicle to the preset temperature during the remote start run time.

The rear window defogger turns on if it is cold outside.

    Manual Operation
    (Power): Press to turn the fan on or off. (Fan Control): Press to increase or decrease the fan speed. The fan speed setting appears on the main display. Pressing either button cancels auto ...

    Sensor
    The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan sp ...

    See also:

    Personal Lights
    Rear personal lights (sedan only) To turn the rear personal lights on, press the switch. To turn them off, press the switch again. Front map lights ...

    ETS/4ETS (Electronic Traction System)
    WARNING Observe "Important safety notes" Traction control is part of ESP®. Traction control brakes the drive wheels individually if they spin. This enables you to pull away and a ...

    Activating/deactivating Blind Spot Assist
    You can use the Blind Spot Asst. function to activate or deactivate Blind Spot Assist or Active Blind Spot Assist. •► Press on the steering wheel to select the DriveAssist menu. •` ...