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Powertrain Malfunction/Reduced
Power/Electronic Throttle Control
(If Equipped)
Illuminates in the event of a
powertrain fault. Have your
vehicle checked as soon as
possible.
Service Engine Soon
If it illuminates when the engine
is running, the on-board
E67028
diagnostics system notifies you
that the emission control system requires
service.
If it flashes, engine misfire may be
occurring. An increase in exhaust gas
temperatures can damage the catalytic
converter or other vehicle components.
Avoid heavy acceleration and deceleration
and have your vehicle immediately
serviced.
It illuminates when you switch the ignition
on prior to engine start to check the bulb
and to indicate whether your vehicle is
ready for Inspection and Maintenance
(I/M) testing.
Normally, it illuminates until the engine is
cranked and turns off if no malfunctions
are present. However, if after 15 seconds
it flashes eight times, this indicates that
your vehicle is not ready for inspection and
maintenance (I/M) testing.
See Catalytic Converter (page 117).
Stability Control Indicator
Flashes during operation.
E138639
If it does not illuminate when you switch
the ignition on, or remains on when the
engine is running, this indicates a
malfunction. Have your vehicle checked
as soon as possible.
2025 F-650/750 (TBC) , enUSA, Edition date: 202310, First-Printing
Instrument Cluster
Traction Control Indicator
E138639
If it does not illuminate when you switch
the ignition on, or remains on when the
engine is running, this indicates a
malfunction. Have your vehicle checked
as soon as possible.
Traction Control System Off
E194301
Trailer Anti-Lock Brake System
(ABS)
E209040
or a PLC diagnostic tool. If the light fails to
illuminate, remains on after you start the
vehicle or continues to flash, have the
system immediately serviced.
Transmission Tow/Haul
E246592
immediately serviced, damage to the
transmission could occur.
Two Speed Axle
(If Equipped)
E208809
Wait to Start
wait to start indicator turns off before
attempting to start vehicle.
69
Flashes during a traction control
event.
Illuminates when you switch the
system off.
Briefly illuminates when you
switch on the ignition, and only
when you connect a PLC trailer
Illuminates when you switch on
tow/haul. If the light steadily
flashes, have the system
(If Equipped)
The two speed axle indicator
comes on when you switch the
low axle range on.
(If Equipped)
Illuminates when you switch the
ignition on as part of the
pre-start system. Wait until the
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