Activating The Electronic Locking Differential (Eld) - Ford Super Duty Owner's Manual

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Four-Wheel Drive (If Equipped)

Activating the Electronic Locking Differential (ELD)

Note: The ELD may have difficulty disengaging either by operator

command or automatically if the driveline is under torque. If driving

conditions allow, releasing the accelerator pedal or turning the steering

wheel in the opposite direction may assist in disengagement.

Note: The ELD is designed for off-road use only and is not intended for

use on dry pavement.

Once the indicator light is displayed in the information display,

both rear wheel axle shafts will be locked together providing

added traction.

If the indicator does not come on, or the indicator turns off while

driving, one of the following has occurred:

• The vehicle speed is too high.

• The left and right rear wheel speed difference is too high during an

engagement attempt.

• The system has malfunctioned and will be accompanied by a message

in the information display. See your authorized Ford dealer for

2013 F-250/350/450/550 (f23)

Owners Guide gf, 2nd Printing, December 2012

For vehicles equipped with an

electronic shift 4WD system:

Pull the 4WD control knob toward

For 2WD vehicles and vehicles

equipped with a manual shift

Turn the control to ON.

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