2002 Ford Excursion Owner Guide 4th Printing - Page 164

Driving (Overdrive). Selecting 1 (Low) at higher speeds causes the transmission to shift to a lower gear, and will shift to 1 (Low) after vehicle decelerates to the proper speed. Forced Downshifts (Overdrive) or Drive (O/D OFF) when To gain acceleration in passing another vehicle, push the accelerator to the floor. The transmission will downshift to the appropriate gear: third, second or first gear. Shift strategy (4R100 automatic transmission) To account for customer driving habits and conditions, your 4R100 automatic transmission electronically controls the shift quality by using an adaptive learning strategy. The adaptive learning strategy is maintained by power from the battery. When the battery is disconnected or a new battery is installed, the transmission must relearn its adaptive strategy. Optimal shifting will resume within a few hundred kilometers (miles) of operation. If the shift quality does not improve within a few hundred kilometers (miles) of operation, or if the downshifts and other throttle conditions do not function normally, see your dealer or a qualified service technician as soon as possible. REVERSE SENSING SYSTEM (IF EQUIPPED) The Reverse Sensing System (RSS) sounds a tone to warn the driver of obstacles near the rear bumper when R (Reverse) is selected. The RSS will assist the driver in detecting certain objects while: • the vehicle is moving toward a stationary object at a speed of 5 km/h (3 mph) or less. • the vehicle is in R (Reverse) but not moving backward (the brake pedal is depressed or the parking brake is applied), and a moving object is approaching the rear of the vehicle at a speed of 5 km/h (3 mph) or less. • the vehicle is moving in reverse at a speed of less than 5 km/h (3 mph) and a moving object is approaching the rear of the vehicle at a speed of less than 5 km/h (3 mph) The RSS is not effective at speeds greater than 5 km/h (3 mph) and may not detect certain angular or moving objects. 164