2013 Chevrolet Volt Owner Manual - Page 185

Climate Controls 8-7 M AUTO/ L AUTO (Auto Heated Seats): If available, the controls are on the touch screen on the center stack. Press the touch screen L AUTO or M AUTO button. The button color will change to green when this feature is on. When the vehicle is on, this feature will automatically activate the heated seats at the level required by the vehicle's interior temperature. The active high, medium, low, or off heated seat level will be indicated by the manual heated seat button lights on the center stack. Use the touch screen buttons or the manual heated seat buttons on the center stack to turn auto heated seats off. For more information, see Heated Front Seats on page 3‑5. Rear Window Defogger = (Rear Window Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off automatically after about five minutes. If turned on again, it runs for about five minutes before turning off. The defogger can also be turned off by turning the vehicle off. 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 on page 2‑17. 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 the radio's ability to pick up stations clearly. The repairs would not be covered by the vehicle warranty. Remote Start: For vehicles with this feature, the climate control system may be started by using the Remote Keyless Entry (RKE) transmitter. The climate control system will default to an appropriate heating or cooling mode. See Remote Start on page 2‑8. The rear window defogger turns on if it is cold outside. Compressor The vehicle has an electric powered air conditioning compressor. This allows for continuous air conditioning and/or high voltage battery cooling operation, without running the engine. The compressor operating speed is not tied to the engine speed, so some noise may be heard from the compressor, especially when air conditioning use is high and the engine has turned off. This is normal.