2005 Cadillac STS Owner's Manual - Page 180

2. Adjust the temperature to a comfortable setting, generally, between 70°F (21°C) and 80°F (27°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 try to continuously heat the vehicle and will not adjust the system down as the vehicle warms up. In cold weather, the system may 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. You can switch from English to metric units through the Driver Information Center (DIC). See DIC Controls and Displays on page 3-69. The air-conditioning system removes moisture from the air, so you may notice water dripping underneath your vehicle while idling or after turning off the engine. This is normal. Manual Operation yN z (Mode): Pressing the mode switch and changing the mode cancels automatic operation and allows the operator to manually select the air delivery location. Press AUTO to return to automatic operation. The outboard air outlets will always receive airflow regardless of the mode selected. See Outlet Adjustment on page 3-52 to change this airflow from the outboard outlets. To change the current mode, select one of the following: Y (Vent): This mode directs air to the instrument panel outlets. This mode directs approximately half of the air to the instrument panel outlets, and then directs most of the remaining air to the floor outlets. In automatic operation, cooler air is directed to the upper outlets and warmer air to the floor outlets. This mode directs most of the air to the floor outlets with some air directed to the outboard outlets, and a little air directed to the windshield and side windows. The mode switch can also be used to select the defog mode. Information on defogging and defrosting can be found later in this section. \ (Bi-Level): [ (Floor): 3-48