2013 Ford F150 Super Cab Owner Manual Printing 3 - Page 224

Four-Wheel Drive (If Equipped) 223 Using the 2-Speed Automatic 4WD System (If Equipped) This system includes an electronically controlled transfer case with a high capacity clutch. The system is interactive with the road, continually monitoring and adjusting torque delivery to the front and rear wheels to optimize traction. • 2H (4X2) - delivers power to the rear wheels only. This mode is appropriate for normal on-road driving on dry pavement and provides best fuel economy and smoothness. • 4A (4X4 AUTO) - provides electronic control four-wheel drive with power delivered to the front and rear wheels, as required, for increased traction. This is appropriate for all on-road driving conditions, including as dry road surfaces, but is especially useful on wet pavement, snow, dirt, or gravel. • 4H (4X4 HIGH) - provides electronically locked four-wheel drive power to front and rear wheels. This position is not recommended for use on dry pavement. This position is only intended for severe winter or off-road conditions, such as deep snow, ice or shallow sand. Note: Do not use 4H (4X4 HIGH) on dry, hard surfaced roads. Doing so can produce excessive noise and increased tire wear. 4H (4X4 HIGH) is only intended for consistently slippery or loose surfaces. Use of 4H (4X4 HIGH) on these surfaces may produce some noise (such as occasional clunks), but will not damage drive components. • 4L (4X4 LOW) - provides electronically locked four-wheel drive when extra power at reduced speeds is required. This position is not recommended for use on dry pavement. Use this position for off-road low-speed operation or when extra power is required, such as climbing steep grades, going through deep sand or pulling a boat out of the water. 4L (4X4 LOW) will not engage while the vehicle is moving above 3 mph (5 km/h); this is normal and should be no reason for concern. Refer to Shifting to/from 4L (4X4 LOW) for proper operation. 2013 F-150 (f12) Owners Guide gf, 3rd Printing, February 2013 USA (fus)