1997 Mercury Grand Marquis Owner Guide 1st Printing - Page 98

Speed control cannot reduce the vehicle speed if it increases above the set speed on a downhill. If your vehicle speed is faster than the set speed while driving on a downhill in j (Overdrive), you may want to shift to the next lower gear to reduce your vehicle speed. If your vehicle slows down more than 10 mph (16 km/h) below your set speed on an uphill, your speed control will disengage. This is normal. Pressing RESUME will re-engage it. RWARNING To keep your vehicle under control, do not use speed control in heavy traffic or on roads that are winding, slippery, or unpaved. To Set a Higher Set Speed u Press and hold SET ACCEL. Release the switch when the desired vehicle speed is reached. OR will increase the set speed by 1 mph (1.6 km/h). OR press SET ACCEL. u Press and release SET ACCEL. Each press u Accelerate with your accelerator pedal, then You may accelerate with the accelerator pedal at any time during speed control usage. Releasing the accelerator pedal will return your vehicle speed to the previously programmed set speed. 97