2001 Mercury Grand Marquis Owner Guide 4th Printing - Page 68

Controls and features OVERDRIVE CONTROL Activating overdrive (Overdrive) is the normal drive position for the best fuel economy. The overdrive function allows automatic upshifts and downshifts through all available gears. Deactivating overdrive If your vehicle is equipped with a column-shift transmission, press the O/D ON/OFF Transmission Control Switch (TCS) located on the end of the gearshift lever. If your vehicle is equipped with a floor-shift transmission, overdrive can be deactivated by pressing the Transmission Control Switch (TCS) on the gearshift handle. The Transmission Control Indicator Light (TCIL) will illuminate on the instrument cluster. The transmission will operate in all gears except overdrive. To return to normal overdrive mode, press the Transmission Control Switch again. The TCIL will no longer be illuminated. When you shut off and re-start your vehicle, the transmission will (Overdrive) mode. automatically return to normal For additional information about the gearshift lever and the transmission control switch operation refer to the Automatic Transmission Operation section of the Driving chapter. 68