Ford F-150 Owner's Manual page 42

Instrument Cluster
RIGHT REAR DOOR AJAR — Displayed when the rear right door is
not completely closed.
CHECK FUEL FILL INLET — Displayed when the fuel fill inlet may
not be properly closed. Refer to Easy Fuel "no cap" fuel system in the
Maintenance and Specifications chapter.
FUEL LEVEL LOW — Displayed as an early reminder of a low fuel
condition.
CHECK CHARGING SYSTEM — Displayed when the electrical system
is not maintaining proper voltage. If you are operating electrical
accessories when the engine is idling at a low speed, turn off as many of
the electrical loads as soon as possible. If the warning stays on or comes
on when the engine is operating at normal speeds, contact your
authorized dealer as soon as possible.
TURN POWER OFF TO SAVE BATTERY (if equipped) — Displayed
when the battery management system determines that:
• the battery is at a low state of charge or,
• the ignition has been in accessory position or on position with the
engine off for approximately 45 minutes.
Turn the ignition off as soon as possible to protect the battery. This
message will clear once the vehicle has been started and the battery
state of charge has recovered. Turning off unnecessary electrical loads
while driving will allow faster battery state-of-charge recovery. See
Battery management system in the Maintenance and Specifications
chapter for more information.
LOW BATTERY FEATURES TEMPORARILY TURNED OFF (if
equipped) — Displayed when the battery management system detects
an extended low-voltage condition. Various vehicle features will be
disabled to help preserve the battery. Turn off as many of the electrical
loads as soon as possible to improve system voltage. If the system
voltage has recovered, the disabled features will operate again as normal.
BRAKE FLUID LEVEL LOW — Indicates the brake fluid level is low
and the brake system should be inspected immediately. Refer to Brake
fluid in the Maintenance and Specifications chapter.
CHECK BRAKE SYSTEM — Displayed when the brake system needs
servicing. If the warning stays on or continues to come on, contact your
authorized dealer as soon as possible.
42
2011 F-150 (f12)
Owners Guide, 3rd Printing
USA (fus)