1997 Mercury Grand Marquis Owner Guide 1st Printing - Page 74

Temperature selection The RED and BLUE buttons at the upper left of the Control are for temperature selection. The RED button will increase the set temperature and the BLUE button will lower the set temperature. Pressing a button and releasing it will change the set temperature one degree. Holding either button in will rapidly change the temperature setting in one degree increments to either 65˚F (18˚C) (BLUE) or 85˚F (29˚C)(RED). Then, the set temperature will jump 5˚ and stop at either 60˚F (16˚C) which is maximum cooling or 90˚F (32˚C) which is maximum heating. The average temperature range used is between 68˚F (20˚C) and 78˚F (26˚C). Changing the temperature setting by several degrees outside this range will not speed up the heating or cooling process. Temperature display The selected temperature displayed in the window can be set for either ˚F or ˚C. Your car may have an English/Metric (E/M) Button to change your speedometer from miles to kilometers. When pressed, this button also changes the temperature display. With or 73