2003 Pontiac Bonneville Owner's Manual - Page 143

Automatic Climate Control System With this system you can control the heating, cooling and ventilation for your vehicle. 2. Adjust the temperature to 75" F (24" 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 warmest temperature setting, the system will remain at the maximum heat setting and fan speed. In cold weather, the system will start at reduced fan speeds to 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. Automatic Operation AUTO (Automatic): Press the AUTO button for automatic control of the inside temperature, the air delivery mode and the fan speed. 1. Press the AUTO button. Whenever this button is pressed, the display will show the current settings for five seconds before returning the display to the exterior temperature. Do not cover the solar sensor located in the center OT the instrument panel, near the windshield. For more information on the solar sensor, see "Sensors" later in this section. 3-28