FORD 2012 F-550 v.3 - Manual (Page 34)

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.
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.
Instrument Cluster
34
2012 F-250/350/450/550 (f23)
Owners Guide, 3rd Printing
USA (fus)