1997 Pontiac Bonneville Owner's Manual - Page 145
1997 Pontiac Bonneville Manual
Page 145 highlights
Tempmerature Button The TEMP button changes the temperature of the air coming through the system. Press the up arrow for warmer air-and the down arrow for cooler air. remain at that maximum heating setting and will not regulate the fan speed. Choosing either maximum setting will not cause the system to heat or cool any faster. Pressing the AUTO button will display the requested temperature, fan speed and air delivery mode for five seconds, then change to display the outside air temperature. Be careful not to put anything over the sensor located in the middle of the instrument panel near the windshield, or over the sensor in the grille above the radio. These sensors are used by the automatic system to regulate temperature. The exterior temperature display sensor is in front of the car, near the radiator. This displayed temperature is most accurate when the vehicle is moving. During stops, or while idling, the display shows the previous dsaving temperature for best system control. To avoid blowing cold air in cold weather, the system will delay turning on the fan until warm air is available. The length of delay depends on outside air temperature, engine coolant temperature, and time since the engine was last started. Pushing the fan button will override this delay and change the fan to a selected single speed. If you leave your vehicle, the system will remember the Mode Button Press this button to deliver air through the floor, middle or windshiel'd outlets. The system will stay inthe selected mode until the MODE or AUTO button is pushed. Press the up arrow to cycle through the available modes. Automatic Operation When the system is set for AUTO, sensors will control the air delivery mode. Air will come from the floor, middle and windshield outlets. The fan speed will vary as the system maintains the selected temperature setting. To find your comfort zone, start with 75 F (24" C) temperature setting and allow about 20 minutes for the system to regulate. Press the TEMP button up or down to adjust the temperature setting if necessary. If you choose the temperature setting of 60°F (15O C), the system will remain at that maximum cooling setting and will not regulate the fan speed. If you choose the the temperature setting of 90°F (33 "C), system will O control setting the next time you start your engine. 3-4