1996 Ford Thunderbird Owner's Manual - Page 102

NOTE: If your speed increases above your set speed while driving in D (Drive) on a downhill grade, you may want to depress the Transmission Control Switch located on the shift lever to turn off overdrive to reduce vehicle speed. Speed control cannot reduce the vehicle speed if it goes above your set speed on a downhill grade. RWARNING Do not use the speed control in heavy traffic or on roads that are winding, slippery, or unpaved. Accelerating With the Speed Control Operating You can use the accelerator pedal to speed up momentarily. When you take your foot off the accelerator, the vehicle will return to the set speed. Resetting the Speed Control To reset the speed control to a lower speed, use one of the following procedures: u COAST - Press and hold the COAST switch. Release the switch when the vehicle slows down to the desired speed. u Lightly tap the brake pedal. When the vehicle attains the desired speed, press the SET ACCEL switch and release it immediately. If vehicle speed is reduced below 30 mph (50 km/h) by any of the above methods, then you must manually accelerate to a speed over 30 mph (50 km/h) and reset the system. 99