Defogging and Defrosting

Fog on the inside of windows is a result of high humidity (moisture) condensing on the cool window glass. This can be minimized if the climate control system is used properly. You can use either defog or front defrost to clear fog or frost from your windshield.

to clear the windows (Defog): Use this setting to clear the windows of fog or moisture. This setting will deliver air to the floor and windshield outlets.

the front defrost button (Front Defrost): Press the front defrost button to clear the windshield and side windows of frost or fog quickly. The system will automatically control the fan speed if you select defrost from AUTO mode. If the outside temperature is 40°F (4°C) or warmer, your air conditioning compressor will automatically run to help dehumidify the air and dry the windshield. Do not drive the vehicle until all the windows are clear.

    See also:

    Lock Feedback
    Press the customization button until LOCK FEEDBACK: BOTH appears in the display. To select your preference for the feedback you receive when locking the vehicle with the Remote Keyless Entry (RK ...

    Instrument Panel Illumination Control
    Instrument Panel Illumination Control The brightness of the instrument panel lighting and steering wheel controls can be adjusted. (Instrument Panel Illumination): Move and hold the thumb ...

    Customer Assistance Offices
    Buick encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail Buick, the letter should be addressed to: United States — Customer Assist ...