Ford Ranger 2021-2024 Rear Axle Ford Ranger

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ELECTRONIC LOCKING
DIFFERENTIAL

 (IF EQUIPPED)

Note:

Do not operate the system on dry

hard surface roads. Doing so could lead to
excessive tire noise and wear. Use the
system only on consistently slippery or loose
surfaces.

The system locks the left and right portions
of the rear axle together to form a solid
driving axle, resulting in increased rear
wheel traction in certain conditions.

Press and hold the electronic differential
lock button for 2 seconds to activate the
system.

Note:

The lock button is on the center

console.

E277073

The electronic differential lock can lock
and unlock when the internal gears are
aligned and no torque load is placed on
the differential. To aid alignment, drive the
vehicle in a straight line with the
accelerator pedal released. Alternatively,
drive slowly forward and backward while
moving the steering wheel from side to side
to allow the electronic differential lock to
lock.

High vehicle speed and high accelerator
pedal application inhibit the electronic
locking differential system engagement.
Follow the instruction on the instrument
cluster for engagement and
disengagement.

Note:

You can use the system in any drive

mode 2H, 4H or 4L.

Note:

When you engage the system, the

Electronic Stability Program (ESP) functions
such as Stability Control, Traction Control,
Hill Descent Control, Emergency stop signal,
Hill Start Assist and Trailer Sway Control
are deactivated, the ESP Off indicator
illuminates, and the HDC on indicator turns
off.

Note:

When the anti-lock braking system

is operating, the system disengages.

The electronic locking differential system
can affect various terrain modes.  See

Principle of Operation

 (page 180).

Operating Electronic Locking
Differential with Spare or
Mismatched Tires

The size of the spare tire can affect the
performance of the electronic locking
differential system. When there is a
significant size difference between the two
rear tires, you could have limited electronic
locking differential functionality. If your
electronic locking differential has difficulty
disengaging, release your accelerator pedal
and turn the steering wheel in the opposite
direction while rolling forward.

Note:

We recommend that you engage and

disengage the electronic locking differential
when stopped, and a spare tire is mounted
on the rear axle.

171

Rear Axle

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Electronic Locking Differential Engagement Speed and Availability

Automatic Re-

Engagement Speed

Automatic Disen-

gage Speed

Engagement Speed

Terrain Modes (4X4

Modes

20 mph (30 km/h)

25 mph (41 km/h)

20 mph (30 km/h)

Normal (2H, 4H)

20 mph (30 km/h)

25 mph (41 km/h)

20 mph (30 km/h)

grass/Gravel/Snow

(4H)

20 mph (30 km/h)

25 mph (41 km/h)

20 mph (30 km/h)

Mud/Ruts (4H)

55 mph (90 km/h)

60 mph (100 km/h)

55 mph (90 km/h)

Sand (4H)

Automatic Re-

Engagement Speed

Automatic Disen-

gage Speed

Engagement Speed

4X4 Mode

No set Speed

No set Speed

No set Speed

4L

172

Rear Axle

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