2007 Saturn Aura Owner's Manual - Page 182
2007 Saturn Aura Manual
Page 182 highlights
Use the steps below to place the entire system in automatic mode: 1. Turn the fan knob and the mode knob to the AUTO position. The current set temperature displays. When AUTO is selected, the air conditioning operation and air inlet is automatically controlled. The air conditioning compressor runs while the outside temperature is over about 40°F (4°C). The air inlet will normally be set to outside air. If it is hot outside, the air inlet may automatically switch to recirculate inside air to help quickly cool down your vehicle. 2. Set the temperature. An initial setting of 73°F (23°C) is recommended. Allow about 20 minutes for the system to regulate. Press the up or down arrow temperature buttons to adjust the temperature setting as necessary. If the temperature is set at 60°F (15°C) the system remains at the maximum cooling setting. If the temperature is set at 90°F (32°C) the system remains at the maximum heat setting. Choosing either maximum setting does not cause the vehicle to heat or cool any faster. 182 Be careful not to cover the sensor located on the top of the instrument panel near the windshield. This sensor regulates air temperature based on the intensity of the sun. Also do not cover the sensor grille on the lower right side of the climate control faceplate, as this regulates the inside temperature. To avoid blowing cold air at engine start-up in cold weather, the system delays turning on the fan until warm air is available. The length of delay depends on the engine coolant temperature. Turning the fan knob overrides this delay and changes the fan to the selected speed. Manual Operation You can also manually adjust the air delivery mode or fan speed. 9 (Off): Select this position on the fan knob to turn off the entire climate control system. Outside air still enters the vehicle, and is directed to the floor. The direction can be changed by changing the mode position. The temperature can also be adjusted using either the up or down arrow temperature buttons. 9 (Fan): Turn the knob with the fan symbol to manually adjust the fan speed.