2009 Mercury Grand Marquis Owner's Manual - Page 40

Climate Controls • Remove any snow, ice or leaves from the air intake area at the base of the windshield. During extreme high ambient temperatures when idling stationary for extended periods of time in gear, it is recommended to run the A/C in the MAX A/C position reduce blower fan speed from the highest setting and put the vehicle's transmission into the park gear position to continue to receive cool air from your A/C system. To aid in side window defogging/demisting in cold weather: 1. Select NORM A/C. 2. Adjust the temperature control to maintain comfort. 3. Set the fan speed to HI. 4. Direct the outer instrument panel vents towards the side windows. To increase airflow to the outer instrument panel vents, close the vents located in the middle of the instrument panel. REAR WINDOW DEFROSTER The rear defroster control is located on the instrument panel. Press the rear defroster control to clear the rear window of thin ice and fog. A small LED will illuminate when the rear defroster is activated. The ignition must be in the on position to operate the rear window defroster. The defroster turns off automatically after a predetermined amount of time or when the ignition is turned off. To manually turn off the defroster, press the control again. Activating the rear window defroster will also activate the heated mirrors (if equipped). For more information refer to Heated outside mirrors in the Driver Controls chapter. Do not use razor blades or other sharp objects to clean the inside of the rear window or to remove decals from the inside of the rear window. This may cause damage to the heated grid lines and will not be covered by your warranty. 40 2009 Grand Marquis (grn) Owners Guide (own2002), 2nd Printing USA (fus)