2012 FORD F550 4WD

TRAILER SWAY REDUCE SPEED (if equipped) — Displayed when
the trailer sway control has detected trailer sway. For more information,
refer to the Driving chapter for more information.
CHECK PARK AID (if equipped) — Displayed when the transmission
is in R (Reverse) and the reverse sensing system (park aid) is disabled.
TRANSPORT MODE CONTACT DEALER (if equipped) —
Displayed when the vehicle is set to transport mode. The transport mode
is used to disable certain vehicle functions to prevent battery discharge
when the vehicle is in the transport/inventory phase and is not driven
long enough to maintain the battery’s charge. This mode can be disabled
by doing the following: Turn the ignition on, without starting the engine.
Press and release the brake pedal fully five times and press the hazard
button four times (on, off, on, off) within 10 seconds.
CHECK LOCKING DIFFERENTIAL (if equipped) — Displayed
when an electronic locking differential (ELD) system fault is present. For
more information, refer to Electronic locking differential (ELD) in the
Driving chapter.
ELD ENGAGED/DISENGAGED (if equipped) — Displayed when the
electronic locking differential is engaged. See Electronic locking
differential in the Driving chapter for more information.
ELD DISENGAGED (if equipped) — Displayed when the electronic
locking differential is disengaged. See Electronic locking differential in
the Driving chapter for more information.
TO ENGAGE ELD RELEASE PEDAL (if equipped) — Displayed
when the electronic locking differential requests this condition be met in
order to engage. See Electronic locking differential in the Driving
chapter for more information.
TO ENGAGE ELD SLOW TO XX MPH/KM/H (if equipped) —
Displayed when the electronic locking differential requests that a certain
speed be met in order to engage. See Electronic locking differential in
the Driving chapter for more information.
CHECK 4X4 (if equipped) — Displayed when a 4X4 system fault is
present. For more information, refer to Four-wheel drive (4WD)
operation in the Driving chapter.
4X4 SHIFT IN PROGRESS — Displayed when the 4X4 system is
making a shift. For further information, refer to Four-wheel drive
(4WD) operation in the Driving chapter.
FOR 4X4 LOW SLOW TO 3 MPH (if equipped) — Displayed when
4X4 LOW is selected while the vehicle is moving. For more information,
refer to Four-wheel drive (4WD) operation in the Driving chapter.Instrument Cluster
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FOR 4X4 LOW APPLY BRAKE (if equipped) — Displayed when
trying to select 4X4 LOW. For more information, refer to Four-wheel
drive (4WD) operation in the Driving chapter.
FOR 4X4 LOW SHIFT TO N (if equipped) — Displayed when 4X4
LOW is selected and the vehicle is stopped. For more information, refer
to Four-wheel drive (4WD) operation in the Driving chapter.
TO EXIT 4X4 LOW SLOW TO 3 MPH (if equipped) — Displayed
when 2WD is selected while the vehicle is operating in 4X4 LOW. For
more information, refer to Four-wheel drive (4WD) operation in the
Driving chapter.
TO EXIT 4X4 LOW SHIFT TO N (if equipped) — Displayed when
2WD is selected while the vehicle has been stopped in 4X4 LOW. For
more information, refer to Four-wheel drive (4WD) operation in the
Driving chapter.
TO EXIT 4X4 LOW APPLY BRAKE (if equipped) — Displayed when
2WD is selected from 4X4 LOW mode. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.
SHIFT DELAYED PULL FORWARD (if equipped) — May display
when shifting to or from 4X4 LOW. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.
HILL DESCENT CONTROL READY (if equipped) — Displayed
when the hill descent control switch is turned on.
HILL DESCENT CONTROL FAULT (if equipped) — Displayed when
a hill descent system fault is present.
HILL CNTRL OFF SYSTEM COOLING (if equipped) — Displayed
when the hill descent system is cooling due to overuse.
HILL DESCENT CONTROL OFF (if equipped) — Displayed when
the hill descent system is deactivated.
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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TRAIN SPARE TIRE (if equipped) — Displayed when training the
TPMS. Refer to TPMS reset procedure in the Tires, Wheels and
Loading chapter for more information.
TRAINING COMPLETE — Displayed when training of the TPMS
system is complete. Refer to TPMS reset procedure in the Tires, Wheels
and Loading chapter for more information.
POWER STEERING ASSIST FAULT — The power steering system
has disabled power steering assist due to a system error; service is
required.
SERVICE POWER STEERING — The power steering system has
detected a condition that requires service.
SERVICE POWER STEERING NOW — The power steering system
has detected a condition that requires service immediately.
BUCKLE UP TO UNMUTE AUDIO — Displayed when a MyKey  is in
use and Belt-Minder  is activated. Refer to MyKey  in the Locks and
Security chapter for more information.
TRACTION CONTROL OFF (if equipped) — Displayed when the
traction control has been disabled by the driver. Refer to the Driving
chapter for more information.
CHECK 4X4 (if equipped) — Displayed when a 4X4 system fault is
present. For more information, refer to Four-wheel drive (4WD)
operation in the Driving chapter.
4X4 SHIFT IN PROGRESS (if equipped) — Displayed when the 4X4
system is making a shift. For further information, refer to Four-wheel
drive (4WD) operation in the Driving chapter.
FOR 4X4 LOW APPLY BRAKE (if equipped) — Displayed when
trying to select 4X4 LOW. For more information, refer to Four-wheel
drive (4WD) operation in the Driving chapter.
FOR 4X4 LOW SHIFT TO N (if equipped) — Displayed when 4X4
LOW is selected and the vehicle is stopped. For more information, refer
to Four-wheel drive (4WD) operation in the Driving chapter.
FOR 4X4 LOW SLOW TO 3 MPH (if equipped) — Displayed when
4X4 LOW is selected while the vehicle is moving. For more information,
refer to Four-wheel drive (4WD) operation in the Driving chapter.
TO EXIT 4X4 LOW APPLY BRAKE (if equipped) — Displayed when
2WD is selected from 4X4 LOW mode. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.Instrument Cluster
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USA (fus)

TO EXIT 4X4 LOW SHIFT TO N (if equipped) — Displayed when
2WD is selected while the vehicle has been stopped in 4X4 LOW. For
more information, refer to Four-wheel drive (4WD) operation in the
Driving chapter.
TO EXIT 4X4 LOW SLOW TO 3 MPH (if equipped) — Displayed
when 2WD is selected while the vehicle is operating in 4X4 LOW. For
more information, refer to Four-wheel drive (4WD) operation in the
Driving chapter.
TO ENGAGE LOCKING DIFFERENTIAL RELEASE
ACCELERATOR PEDAL (if equipped) — Displayed when the
electronic locking differential requests that the accelerator pedal be
released in order to engage. See Electronic locking differential in the
Driving chapter for more information.
TO ENGAGE LOCKING DIFFERENTIAL SLOW TO XX MPH/KM/H
(if equipped) — Displayed when the electronic locking differential
requests that a certain speed be met in order to engage. See Electronic
locking differential in the Driving chapter for more information.
LOCKING DIFFERENTIAL ENGAGED/DISENGAGED (if
equipped) — Displayed when the electronic locking differential is
engaged. See Electronic locking differential in the Driving chapter for
more information.
LOCKING DIFFERENTIAL DISENGAGED (if equipped) —
Displayed when the electronic locking differential is disengaged. See
Electronic locking differential in the Driving chapter for more
information.
FOR HILL DESCENT REDUCE SPEED (if equipped) — Displayed
when the vehicle speed requirement for off-road mode entry has not
been met.
FOR HILL DESCENT SELECT GEAR (if equipped) — Displayed
when the driver is able to select a transmission gear for hill descent
mode.
HILL DESCENT - DRIVER RESUME CONTROL (if equipped) —
Displayed when hill descent control mode is deactivated and the driver
must resume control.
HILL DESCENT CONTROL FAULT (if equipped) — Displayed when
a hill descent system fault is present.
HILL DESCENT CONTROL OFF (if equipped) — Displayed when
hill descent control mode becomes inactive.
HILL DESCENT CONTROL OFF SYSTEM COOLING (if equipped)
— Displayed when the hill descent system is cooling due to overuse.Instrument Cluster
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HILL DESCENT CONTROL READY (if equipped) — Displayed
when the hill descent control switch is turned on.
REDUCE ACCELERATOR TO PREVENT WHEEL SLIP (if
equipped) — Displayed when the vehicle senses that torque to the
drive wheels has overcome the available traction.
SHIFT DELAYED PULL FORWARD (if equipped) — May display
when shifting to or from 4X4 LOW. For more information, refer to
Four-wheel drive (4WD) operation in the Driving chapter.
SLOW VEHICLE TO XX KM/H FOR ELD (if equipped) — Displayed
when the vehicle speed requirement for the electronic locking
differential mode has not been met.
SLOW VEHICLE TO XX MPH FOR ELD (if equipped) — Displayed
when the vehicle speed requirement for the electronic locking
differential mode has not been met.
CHECK LOCKING DIFFERENTIAL (if equipped) — Displayed
when an electronic locking differential (ELD) system fault is present. For
more information, refer to Electronic locking differential (ELD) in the
Driving chapter.
CHECK SPEED DRIVE SAFELY — Displayed when a MyKey  is in
use and the optional setting is on and the vehicle exceeds a preselected
speed. Refer to MyKey  in the Locks and Security chapter 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 the Locks
and Security chapter.
ESC ALWAYS ON - MYKEY SETTING — Displayed when a MyKey  is
in use and the ESC cannot be deactivated. Refer to MyKey  in the Locks
and Security chapter for more information.
MYKEY ACTIVE DRIVE SAFELY — Displayed when a MyKey  is in
use. Refer to MyKey  in the Locks and Security chapter for more
information.
MYKEY COULD NOT PROGRAM — Displayed when an attempt is
made to program a spare key using two existing MyKeys. Refer to
MyKey  in the Locks and Security chapter for more information.
SECURITY SYSTEM FAULT (if equipped) — Displayed when the
security system has detected a fault. See your authorized dealer for
service. Instrument Cluster
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VEHICLE CHARACTERISTICS
Four-wheel drive (4WD) system (if equipped)
A vehicle equipped with 4WD (when selected) has the ability to use all
four wheels to power itself. This increases traction which may enable you
to safely drive over terrain and road conditions that a conventional
two-wheel drive vehicle cannot.
Power is supplied to all four wheels through a transfer case or power
transfer unit. 4WD vehicles allow you to select different drive modes as
necessary. Information on transfer case operation and shifting procedures
can be found in the Driving chapter. Information on transfer case
maintenance can be found in the Maintenance and Specifications
chapter. You should become thoroughly familiar with this information
before you operate your vehicle.
On some 4WD models, the initial shift from two-wheel drive to 4WD
while the vehicle is moving can cause a momentary clunk and ratcheting
sound. These sounds are normal as the front drivetrain comes up to
speed and is not cause for concern.
WARNING: Do not become overconfident in the ability of 4WD
vehicles. Although a 4WD vehicle may accelerate better than
two-wheel drive vehicle in low traction situations, it won’t stop any
faster than two-wheel drive vehicles. Always drive at a safe speed. Tires, Wheels and Loading
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Tire Rotation
WARNING: If the tire label shows different tire pressures for
the front and rear tires and the vehicle is equipped with TPMS
(tire pressure monitoring system), then the settings for the TPMS
sensors need to be updated. Always perform the TPMS reset procedure
after tire rotation. If the system is not reset, it may not provide a low
tire pressure warning when necessary. See the TPMS reset procedure
in this chapter.
Note: If your tires show uneven wear ask an authorized dealer to check
for and correct any wheel misalignment, tire imbalance or mechanical
problem involved before tire rotation.
Note: Your vehicle may be equipped with a dissimilar spare tire and
wheel assembly. A dissimilar spare tire/wheel is defined as a spare tire or
wheel that is different in brand, size or appearance from the road tires
and wheels. If you have a dissimilar spare tire and wheel assembly, it is
intended for temporary use only and should not be used in a tire
rotation.
Note: After having your tires rotated, inflation pressure must be checked
and adjusted to the vehicle requirements.
Rotating your tires at the recommended interval (as indicated in the
Scheduled Maintenance chapter) will help your tires wear more evenly,
providing better tire performance and longer tire life.
• Rear-wheel drive (RWD)
vehicles/Four-wheel drive (4WD)
vehicles (front tires at top of
diagram)Tires, Wheels and Loading
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Engine only traction control (DRW only)
Button functions TCS OFF indicator TCS
Default at start-up Not illuminated Enabled
Button pressed
momentarily Illuminated Disabled
Button pressed again
after deactivation Not illuminated Enabled
Transfer case switched to
4WD 1
Illuminated Disabled1
Engaging 4WD automatically disables TCS.
ADVANCETRAC  WITH ROLL STABILITY CONTROL™ (RSC  )
STABILITY ENHANCEMENT SYSTEM
(SINGLE REAR WHEEL (SRW) VEHICLES ONLY)
The AdvanceTrac  with RSC  system provides the following stability
enhancement features for certain driving situations:
• Traction control system (TCS), which functions to help avoid
drive-wheel spin and loss of traction.
• Electronic stability control (ESC), which functions to help avoid skids
or lateral slides.
• Roll Stability Control™ (RSC  ), which functions to help avoid a
vehicle roll-over.
WARNING: Vehicle modifications involving braking system,
aftermarket roof racks, suspension, steering system, tire
construction and/or wheel/tire size may change the handling
characteristics of the vehicle and may adversely affect the performance
of the AdvanceTrac  with RSC  system. In addition, installing any
stereo loudspeakers may interfere with and adversely affect the
AdvanceTrac  with RSC  system. Install any aftermarket stereo
loudspeaker as far as possible from the front center console, the
tunnel, and the front seats in order to minimize the risk of interfering
with the AdvanceTrac  with RSC  sensors. Reducing the effectiveness
of the AdvanceTrac  with RSC  system could lead to an increased risk
of loss of vehicle control, vehicle rollover, personal injury and death. Driving
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