Ford F-350 Owner's Manual page 136

Driver Controls
This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display
Park brake engaged
Check brake system
Driver door ajar
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)
Low brake fluid level
Low tire pressure (if equipped) Warning can be cleared by pressing
Tire Monitor Fault (if
equipped)
Tire Sensor Fault (if equipped)
136
2008 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Status
Warning returns after 10 minutes if
condition still exists.
Warning returns after the ignition key
is turned from OFF to RUN.
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.