Ford F-650 Owner's Manual page 23

Instrument Cluster
Diesel particulate filter (diesel
engine only): Illuminates when the
soot level in the DPF has reached a
point where it requires operator
assistance. Refer to Diesel
particulate filter in the
Maintenance and Specifications
chapter and your engine operator's
manual, for more details.
Do not shift (Allison automatic
transmission only): Illuminates
while driving if a problem has been
detected and shifting may be
restricted. Depending upon the
severity of the problem, the
read-out digit on the shifter display
may be blank. Operation may
continue in order to reach service assistance. The ECU may not respond
to shift selector requests, since operating limitations are being placed on
the transmission, i.e. upshifts and downshifts may be restricted.
Direction changes do not occur.
Refer to your transmission operator's manual for more information.
Electronic locking differential
(if equipped): Displays when using
the electronic locking differential.
Engine oil pressure (gasoline
engine only): Illuminates when
engine oil pressure is low.
High beams: Illuminates when the
high-beam headlamps are turned on.
23
2012 F-650/750 (f67)
Supplement, 2nd Printing
USA (fus)