2012 FORD F150 differential

Four-wheel drive high (RTT) (if
equipped):Displays when
four-wheel drive high is engaged. If
the light fails to display when the
ignition is turned on, or remains on, have the system serviced
immediately by your authorized dealer.
Four-wheel drive auto (RTT) (if
equipped):Displays when using the
4x4 system.
Electronic locking differential
(RTT and static ) (if equipped):
Displays when using the electronic
locking differential.
Speed control (if equipped):The
speed control system indicator light
changes color to indicate what mode
the system is in:
•On (amber light):Illuminates
when the speed control system is turned on. Turns off when the speed
control system is engaged or turned off.
•Engaged (green light):Illuminates when the speed control system is
engaged. Turns off when the speed control system is disengaged.
Turn signal:Illuminates when the
left or right turn signal or the
hazard lights are turned on. If the
indicators stay on or flash faster, check for a burned out bulb.
High beams:Illuminates when the
high beam headlamps are turned on.
Key-in-ignition warning chime:Sounds when the key is left in the
ignition in the off or accessory position and the driver’s door is opened.
Headlamps on warning chime:Sounds when the headlamps or parking
lamps are on, the ignition is off (the key is not in the ignition) and the
driver’s door is opened.4x4
HIGH
4x4
AUTO
Instrument Cluster
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CHECK LOCKING DIFFERENTIAL (if equipped)— Displayed
when an electronic locking differential (ELD) system fault is present. For
more information, refer toElectronic locking differential (ELD)in the
Drivingchapter.
ELD ENGAGED/DISENGAGED (if equipped)— Displayed when the
electronic locking differential (ELD) is enabled or disabled. For more
information, refer toElectronic locking differential (ELD)in the
Drivingchapter.
TO ENGAGE ELD SLOW TO XX MPH/KM/H (if equipped)—
Displayed when the electronic locking differential requests a certain
speed requirement to engage. For more information, refer toElectronic
locking differential (ELD)in theDrivingchapter.
TO ENGAGE ELD RELEASE PEDAL (if equipped)— Displayed
when the electronic locking differential request the accelerator to be
released in order to engage. For more information, refer toElectronic
locking differential (ELD)in theDrivingchapter.
HILL DESCENT CONTROL FAULT (if equipped)— Displayed when
a hill descent system fault is present.
HILL CNTRL OFF SYSTEM COOLING (if equipped)— Displayed
when a hill descent system fault is present.
FOR OFF ROAD SLOW TO 5 MPH (if equipped)— Displayed when
the vehicle speed requirement for off-road mode entry has not been met.
OFF ROAD MODE ENABLED (if equipped)— Displayed when
off-road mode becomes active.
EXITING OFF ROAD MODE (if equipped)— Displayed when
off-road mode becomes inactive.
HILL DESCENT CONTROL ACTIVE (if equipped)— Displayed
when hill descent control mode becomes active.
HILL DESCENT CONTROL OFF (if equipped)— Displayed when
hill descent control mode becomes inactive.
FOR HILL CNTRL 20 MPH OR LESS (if equipped)— Displayed
when the vehicle speed requirement for hill control mode entry has not
been met.
DRIVER RESUME CONTROL (if equipped)— Displayed when the
hill control and off-road mode require the driver to resume control.
FOR HILL CNTRL SELECT GEAR (if equipped)— Displayed when
the driver is requested to select a transmission gear to enable operation
of the hill mode and off-road mode.
Instrument Cluster
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Truck Apps (if equipped)
In this mode, off-road information depicted with graphics and trailer
towing application options are available.
*Off Road
Pitch and bank angle (in degrees): Displays the pitch angle (front to rear) and
bank angle (side to side) of the road surface.
Steering angle (in degrees): Displays the steering angle of the front wheels
after the vehicle has been driven for a period of time.
Differential lock/unlock: Displays the state (locked or unlocked) of the
electronic locking differential.
Torque flow: Displays the torque flow to the front and rear driveline and
operating mode of the transfer case: 4X2, 4X4 High, 4X4 Low, 4X4 Auto.
AdvanceTracmode, hill descent control, off-road mode, off-road camera:
Displays which modes are active.
Press OK for Info 4X4 System
AdvanceTrac
4X4 Auto
ELD (Electronic Locking Differential)
Hill Descent Control
Off-Road Mode
Off-Road Camera
*Off Road Camera
Camera Disabled /
EnabledPress OK to Enable /Disable
* If equipped—your vehicle may be equipped with some or all of these
options.
*Trailer:
Trailer disconnected. Disregard this status if your vehicle is not equipped with a
factory installed trailer brake controller. This message may appear when an
aftermarket TBC is used even when the trailer is connected.
Active trailer name or default trailer
Accumulated trailer distance
Trailer gain and output
Press OK
for optionsOptions
Instrument Cluster
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SHIFT DELAYED PULL FORWARD (if equipped)— May display
when shifting to or from 4X4 LOW. For more information, refer to
Four-wheel drive (4WD) operationin theDrivingchapter.
NEUTRAL TOW ENABLED LEAVE TRANSMISSION IN NEUTRAL
(if equipped)— Displayed when the transfer case is in the neutral
position. This message indicates that the vehicle is safe to be towed with
all four wheels on the ground.
NEUTRAL TOW DISABLED (if equipped)— Displayed when the
transfer case is NOT in the neutral position. This message indicates that
the vehicle is NOT safe to be towed with all four wheels on the ground.
CHECK LOCKING DIFFERENTIAL (if equipped)— Displayed
when an electronic locking differential (ELD) system fault is present. For
more information, refer toElectronic locking differential (ELD)in the
Drivingchapter.
LOCKING DIFFERENTIAL ENGAGED/DISENGAGED (if
equipped)— Displayed when the electronic locking differential (ELD)
is enabled or disabled. For more information, refer toElectronic locking
differential (ELD)in theDrivingchapter.
TO ENGAGE LOCKING DIFFERENTIAL SLOW TO XX MPH/KM/H
(if equipped)— Displayed when the electronic locking differential
requests a certain speed requirement to engage. For more information,
refer toElectronic locking differential (ELD)in theDrivingchapter.
TO ENGAGE LOCKING DIFFERENTIAL RELEASE
ACCELERATOR PEDAL (if equipped)— Displayed when the
electronic locking differential request the accelerator to be released in
order to engage. For more information, refer toElectronic locking
differential (ELD)in theDrivingchapter.
CHECK SPEED DRIVE SAFELY— Displayed when a MyKeyis in
use and the optional setting is on and the vehicle exceeds a preselected
speed. Refer toMyKeyin theLocks and Securitychapter for more
information.
COULD NOT PROGRAM INTEGRATED KEY— Displayed when an
attempt is made to program a fifth integrated key to the remote keyless
entry system. For more information on integrated key, refer to theLocks
and Securitychapter.
ESC ALWAYS ON - MYKEY SETTING— Displayed when a MyKeyis
in use and the ESC cannot be deactivated. Refer toMyKeyin theLocks
and Securitychapter for more information.
Instrument Cluster
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All engines
If the steering wanders or pulls equipped with either an EPS or a
hydraulic steering system, check for:
•an improperly inflated tire
•uneven tire wear
•loose or worn suspension components
•loose or worn steering components
•improper steering alignment
A high crown in the road or high crosswinds may also make the steering
seem to wander/pull.
LIMITED-SLIP AXLE (IF EQUIPPED)
This axle provides added traction on slippery surfaces, particularly when
one wheel is on a poor traction surface. Under normal conditions, the
limited-slip axle functions like a standard rear axle. The axle may exhibit
a slight noise or vibration in tight turns with low vehicle speed. This is
normal behavior and indicates the axle is working.
Electronic locking differential (ELD) (if equipped)
The electronic locking differential provides added traction on slippery
and/or off-road surfaces, particularly when one wheel is on a poor
traction surface. In normal driving conditions, the rear axle functions as
a standard axle. The ELD may be locked or unlocked by the vehicle
operator. Refer toFour-wheel drive (4WD) operationsection in this
chapter for further details on ELD function and usage. When the axle is
unlocked, it will function like a standard rear axle. When the axle is
locked, it will not allow the rear wheels to rotate at different speeds
when turning. The ELD axle is not recommended for use on good
traction surfaces such as dry pavement. Doing so may result in abnormal
driving behavior while cornering and excessive tire wear.
PREPARING TO DRIVE
WARNING:Utility vehicles have a significantly higher rollover
rate than other types of vehicles.
WARNING:In a rollover crash, an unbelted person is
significantly more likely to die than a person wearing a seat belt.
Utility vehicles and trucks have larger tires and increased ground clearance,
giving the vehicle a higher center of gravity than a passenger car.
Driving
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Shifting between 4A (Two-speed automatic 4WD) and 4H (4X4 HIGH)
Move the control from 4A to 4H at a stop or while driving at any speed.
The message center will display4X4 AUTOif 4A has been selected and
4X4 HIGHif 4H has been selected.
Note:4x4 High mode is not intended for use on dry pavement.
Shifting to/from 4L (4X4 LOW)
1. Bring the vehicle to a rolling speed of 3 mph (5 km/h) or less.
2. Place the gearshift in N (Neutral).
3. Move the 4WD control to the desired position.
The message center will display4X4 SHIFT IN PROGRESSduring the
shift. The message center will then display the system mode selected.
If any of the above shift conditions are not met, the shift will not occur
and the message center will display information guiding the driver
through the proper range of shifting procedures.
IfSHIFT DELAYED PULL FORWARDis displayed in the message
center, transfer case gear tooth blockage is present. To alleviate this
condition, place the transmission in a forward gear, move the vehicle
forward approximately 5 feet (2 meters), and shift the transmission back
to neutral to allow the transfer case to complete the range shift.
Note:Some noise may be heard as the system shifts or engages; this is
normal.
Note:4x4 low 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
within the ELD operating speed range. 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 ELD will not engage if the vehicle speed is above 20 mph
(30 km/h) in 4x2, 4x4 Auto, or 4x4 High modes.
•The ELD will not engage if the vehicle speed is above or 56 mph
(90 km/h) in 4X4 Low.
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•The ELD will not engage if the accelerator pedal is pressed beyond
50% during an engagement attempt
•In 4x2, 4x4 Auto, and 4x4 High modes, the ELD will automatically
disengage at speeds above 25 mph (40 km/h) and will automatically
reengage at speeds below 18 mph (30 km/h).
•In 4L (4X4 low), the ELD will automatically disengage at speeds above
62 mph (100 km/h) and will automatically reengage at speeds below
56 mph (90 km/h).
•The AdvanceTrac system has the ability to take over control of the
ELD and disable it during driving maneuvers when necessary.
If the required conditions for ELD activation are not met when the
switch is actuated, the instrument cluster will display the appropriate
information guiding the driver through the proper ELD activation
process.
Note:The ELD is designed for off-road use only and is not intended for
use on dry pavement. Using the ELD on dry pavement will result in
increased tire wear, noise and vibration.
Electronic locking differential (ELD) indicator lights
This light will be continuously
displayed in the cluster when the
ELD is active.
The indicator will turn off if the ELD automatically disengages because
the ELD threshold speeds are exceeded and will turn back on when the
ELD automatically reengages when the ELD threshold speeds are not
exceeded.
CHECK LOCKING DIFFERENTIAL– Displays when an ELD fault is
present
Driving
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Activating the electronic locking differential (ELD)
The ELD can be turned on by
pulling the 4WD control knob
toward you (4x4 vehicles) or by
turning the ELD control knob from
OFF to ON (4x2 vehicles).
Once the indicator light is displayed
in the message center, 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 aCHECK
LOCKING DIFFERENTIALmessage in the message center.
Note:If the ELD has difficulty disengaging, release the accelerator pedal
and turn the steering wheel in the opposite direction while rolling.
Basic operating principles
Do not use 4WD on dry, hard surfaced roads. Doing so will produce
excessive noise and vibration and increase tire wear. 4WD modes are
only intended for consistently slippery or loose surfaces.
Parking
On 4WD vehicles, when the transfer case is in the N (Neutral) position
for recreational towing purposes, the engine and transmission are
disconnected from the rest of the driveline. Therefore, the vehicle is free
to roll even if the automatic transmission is in P (Park) or the manual
transmission is in gear. Do not leave the vehicle unattended with the
transfer case in the N (Neutral) position. Always set the parking brake
fully and turn off the ignition when leaving the vehicle. Refer to
Recreational towingfor more information.
Driving
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