2010 Ford F150 Regular Cab Owner Guide 3rd Printing - Page 306

Driving Shifting between AWD (auto) and 4H (high) Move the control from AWD to 4H at a stop or while driving at any speed. The message center will display "AWD" if AWD has been selected and "4X4 high" if 4H has been selected Note: 4X4 high mode is not intended for use on dry pavement Electronic locking differential (ELD) (if equipped) The electronic locking differential (ELD) is a device housed in the rear axle which allows both rear wheels to turn at the same speed. The ELD can provide additional traction should the vehicle become stuck. The ELD is electronically activated by the driver and can be shifted on the fly. It is intended for use in mud, rocks, sand, or any off-road condition where maximum traction is needed. It is not intended for use on dry pavement. The ELD is affected by the following conditions: • The 4WD control must be in either 4H (4X4 high) or 4L (4X4 low) mode. • The ELD will not engage if the vehicle speed is above 20 mph (30 km/h) in 4X4 high or 56 mph (90 km/h) in 4X4 low. • In 4H (4X4 high), the ELD will disengage at speeds above 25 mph (40 km/h) and will automatically reengage at speeds below 20 mph (30 km/h). • In 4L (4X4 low), the ELD will disengage at speeds above 62 mph (100 km/h) and will automatically reengage at speeds below 56 mph (90 km/h). The ELD is designed for off-road use only and is not intended for use on dry pavement. 306