Rear Window Defogger

The rear window defogger uses a warming grid to remove fog or frost from the rear window. It only works when the ignition is in ON/RUN.

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

Press to turn the rear window defogger on or off.

The rear window defogger stays on for about 15 minutes, before turning off if the vehicle is moving at a slower speed. At higher speeds, the rear window defogger may stay on continuously. With each additional press, the defogger runs for about 10 minutes. The defogger can also be turned off by turning off the engine.

The heated outside rearview mirrors turn on when the rear window defogger button is on and helps to clear fog or frost from the surface of the mirrors. 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.

Seats): Press to heat or ventilate (Heated and Ventilated Seats): Press to heat or ventilate the seat. See Heated and Ventilated Front Seats.

Remote Start Climate Control Operation: For vehicles with remote vehicle start, the climate control system automatically heats and cools the vehicle based on the temperature inside and outside of the vehicle. The climate control displays will be blank. See Remote Vehicle Start.

In cold weather the windshield defroster and/or rear window defogger automatically turn on.

If the vehicle has heated seats, they will also turn on.

When the ignition is turned to ON/RUN, the climate control system returns to the settings used before the vehicle was last turned off.

The heated seats will turn off, if equipped.

    See also:

    Limited-Slip Rear Axle
    Vehicles with a limited-slip rear axle can give more traction on snow, mud, ice, sand, or gravel. When traction is low, this feature allows the drive wheel with the most traction to move the ...

    Braking and tire systems
    CTS-V includes sophisticated braking and tire systems, in partnership with two companies renowned for high-performance technology: Brembo and Michelin. Brembo brakes are at all four corners and in ...

    Key and Lock Messages
    NO REMOTE DETECTED This message displays when trying to start the vehicle if an RKE transmitter is not detected. The transmitter battery may be weak. See “Starting the Vehicle with a Low Trans ...