2004 Chevrolet Corvette Owner's Manual - Page 138

Automatic Operation AUTO (Automatic): Press the AUTO button to place the entire system in the automatic mode. When automatic operation is active, the system will automatically control the inside temperature, the air delivery mode and the fan speed. After a five-second display of the current settings, only the word AUTO and the outside temperature will be shown on the digital display unless the system is set to full cold 60°F (16°C) or full hot 90°F (32°C), then the word AUTO will not display. The system will operate to achieve your comfort set temperature as quickly as possible. The AUTO control system works best with the windows up and the removable roof installed or the convertible top up. 1. Press the AUTO button. 2. Adjust the temperature to a comfortable setting between 60°F (16°C) or full hot 90°F (32°C). Choosing the coldest or warmest temperature setting will not cause the system to heat or cool any faster. If you set the system at the coldest or warmest temperature setting, the system will remain in manual mode at that temperature and it will not go into automatic mode. In cold weather, the system will start at reduced fan speeds at avoid blowing cold air into your vehicle until warmer air is available. The system will start out blowing air at the floor but may change modes automatically as the vehicle warms up to maintain the chosen temperature setting. The length of time needed for warm up will depend on the outside temperature and the length of time that has elapsed since your vehicle was last driven. 3. Wait for the system to regulate. This may take from 10 to 30 minutes. Then adjust the temperature, if necessary. Do not cover the solar sensor located in the center of the instrument panel, near the windshield. For more information on the solar sensor, see "Sensor" later in this section. 3-24