FORD 2008 F-550 v.3 - Manual (Page 126)

Warning display Status
Park brake engaged Warning returns after 10 minutes if
condition still exists.
Check brake system
Driver door ajar Warning returns after the ignition key
is turned from OFF to RUN.
Passenger door ajar
Rear left door ajar
Rear right door ajar
Low fuel level
Trailer fault (if equipped)
TBC fault (if equipped)
Trailer disconnected (if
equipped)
Check air filter (diesel engine
only)
Low brake fluid level
Drain water separator (diesel
engine only)
Stop safely now (diesel engine
only)
Engine warming (diesel engine
only)
OK to drive (diesel engine
only)
Low tire pressure (if equipped) Warning can be cleared by pressing
the RESET button. Warning can
reappear if the condition is still
present. Warning will reappear on the
next ignition key-cycle if the condition
still exists.
Tire Monitor Fault (if
equipped)
Tire Sensor Fault (if equipped)
PARK BRAKE ENGAGED Displayed when the parking brake is applied
(or not fully released).
CHECK BRAKE SYSTEM Displayed when a fault has been detected by
the ABS module.
DRIVER DOOR AJAR Displayed when the driver’s door is not
completely closed.
2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Driver Controls
126