2000 Ford Expedition Owner's Manual - Page 145

Driving CONTROL-TRAC AUTOMATIC FOUR-WHEEL DRIVE SYSTEM (IF EQUIPPED) Your 4x4 features the heavy-duty Control-Trac system which includes a computer-operated transfer case. This unique system is interactive with the road, continually monitoring and adjusting torque delivery to the front and rear wheels to optimize vehicle control. Positions of the Control-Trac system The Control-Trac A4WD system 4H functions in three modes: A4WD 4L • A4WD position delivers power to the rear axle. If the rear wheels lose traction, power will be automatically delivered to the front axle to maintain traction throughout the slippery condition. • 4H position provides mechanically locked four-wheel drive power delivery to front and rear axles. • 4L position provides mechanically locked four-wheel drive when above average power at reduced speeds is required. Utility and four-wheel drive vehicles are not designed for cornering at speeds as high as passenger cars any more than low-slung sports cars are designed to perform satisfactorily under off-road conditions. Avoid sharp turns or abrupt maneuvers in these vehicles. 145