2021 Ford F-150 Owners Manual - Electronic Locking Differential

Electronic Locking Differential

The electronic locking differential is a device housed in the rear axle, and when activated, allows both wheels on a specific axle to turn at the same speed. The electronic locking differential can provide additional traction should your vehicle become stuck. You can activate the differential electronically and shift it on the fly within the operating speed range. The electronic differential will disengage when the vehicle speed exceeds a set value and it will reengage when the vehicle speed goes below a set value. See Switching the Electronic Locking Differential On and Off (page 269). It will also engage based on certain selected drive modes.

See Selecting a Drive Mode (page 328).

The electronic locking differential is for use in mud, rocks, sand, or any off-road condition where you need maximum traction.

Note: The electronic locking differential is for off-road use only and is not for use on dry pavement. Using the electronic locking differential on dry pavement will result in increased tire wear, noise and vibration.

On vehicles with an electronic locking differential, the size of the spare tire can affect performance of the system. If there is a significant difference between the two rear tires, you may have limited electronic locking differential functionality. If the system has difficulty disengaging, release

the accelerator pedal and turn the steering wheel in the opposite direction when rolling. We recommend engaging and disengaging the electronic locking differential at a stop when you mount a spare on the rear axle.

The button to activate and deactivate the electronic locking differential is in the center of the drive mode rotary switch.

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To manually activate or deactivate the electronic locking differential, press the electronic locking differential button.

Note: The electronic locking differential can activate or deactivate automatically based on speed, four-wheel drive mode, and drive mode selection. See Selecting a Drive Mode (page 328).

E30

1Automatically engages when these drive modes are selected. You have the ability to manually override the automatic engagement by pressing the electronic locking differential button.

2If available for 4A drive modes.

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Note: The electronic locking differential may not engage if you press your accelerator pedal during an engagement attempt. A message could display in the instrument display guiding you to release the accelerator pedal.

Note: If the electronic locking differential has difficulty disengaging, release the accelerator pedal and turn the steering wheel in the opposite direction while rolling.

Note: The electronic locking differential is for off-road use only and is not for use on dry pavement. Using the electronic locking differential on dry pavement results in increased tire wear, noise and vibration.

The button to activate and deactivate the electronic locking differential is located in the center of the Drive mode rotary switch.

E

To manually activate or deactivate the electronic locking differential, press the electronic locking differential button.

Note: The electronic locking differential may not engage if you press your accelerator pedal during an engagement attempt. A message could display in the instrument display guiding you to release the accelerator pedal.

Note: If the electronic locking differential has difficulty disengaging, release the accelerator pedal and turn the steering wheel in the opposite direction while rolling.

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Note: The electronic locking differential is for off-road use only and is not for use on dry pavement. Using the electronic locking differential on dry pavement results in increased tire wear, noise and vibration.

Amber Color: This indicator illuminates in amber when the electronic locking differential is

on, indicating that both rear wheel axle shafts are locked together providing added traction.

Gray Color: This indicator illuminates in gray when the electronic locking differential has been requested to activate but the vehicle speed is too high, or the left and right wheel speed difference is too high during an engagement attempt.

If the electronic locking differential has been selected, but has malfunctioned, a message appears in the information display. See your authorized dealer for assistance.

Note: If the vehicle is experiencing an anti-lock braking event, the electronic locking differential may momentarily disengage.

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