Service Engine Soon; Stability Control System; Stability Control System Off; Transmission Tow/Haul - Ford Super Duty Owner's Manual

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Service Engine Soon

The service engine soon indicator light illuminates when the
ignition is first turned to the on position to check the bulb and to
indicate whether the vehicle is ready for Inspection/Maintenance
(I/M) testing. Normally, the "service engine soon" light will stay on until
the engine is cranked, then turn itself off if no malfunctions are present.
However, if after 15 seconds the "service engine soon" light blinks eight
times, it means that the vehicle is not ready for I/M testing. See the
Readiness for inspection/maintenance (I/M) testing in the Fuel and
Refueling chapter.
Solid illumination after the engine is started indicates the on-board
diagnostics system (OBD-II) has detected a malfunction. Refer to
On-board diagnostics (OBD-II) in the Fuel and Refueling chapter.
If the light is blinking, engine misfire is occurring which could damage
your catalytic converter. Drive in a moderate fashion (avoid heavy
acceleration and deceleration) and have your vehicle serviced
immediately by your authorized dealer.
WARNING: Under engine misfire conditions, excessive exhaust
temperatures could damage the catalytic converter, the fuel
system, interior floor coverings or other vehicle components, possibly
causing a fire.

Stability Control System

Displays when the AdvanceTrac®/Traction control is active.
If the light remains on, have the system serviced immediately.

Stability Control System Off

Illuminates when AdvanceTrac®/Traction control has been
disabled by the driver.

Transmission Tow/Haul

Illuminates when the Tow/Haul feature has been activated.
Refer to the Transmission chapter for transmission function
and operation. If the light flashes steadily, have the system
serviced immediately, damage to the transmission could occur.
2013 F-250/350/450/550 (f23)
Owners Guide gf, 2nd Printing, December 2012
USA (fus)
Instrument Cluster