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.
Instrument Cluster
111
2013 F-150
(f12)
Owners Guide gf, 3rd Printing, February 2013
USA
(fus)