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following two conditions: (1) This device may not cause harmful
interference, and (2) This device must accept any interference received,
including interference that may cause undesired operation.
WARNING: The tire pressure monitoring system is NOT a
substitute for manually checking tire pressure. The tire pressure
should be checked periodically (at least monthly) using a tire gauge,
see Inflating your tires in this chapter. Failure to properly maintain
your tire pressure could increase the risk of tire failure, loss of control,
vehicle rollover and personal injury.
Changing tires with TPMS
Each road tire is equipped with a
tire pressure sensor located inside
the tire/wheel cavity. The pressure
sensor is attached to the valve
stem. The pressure sensor is
covered by the tire and is not
visible unless the tire is removed.
Care must be taken when changing
the tire to avoid damaging the
sensor. It is recommended that you
always have your tires serviced by an authorized dealer.
The tire pressure should be checked periodically (at least monthly) using
an accurate tire gauge, refer to Inflating your tires in this chapter.
Understanding your tire pressure monitoring system (TPMS)
The tire pressure monitoring system measures pressure in your four road
tires and sends the tire pressure readings to your vehicle. The low tire
warning lamp will turn on if the tire pressure is significantly low. Once the
light is illuminated, your tires are under inflated and need to be inflated to
the manufacturer’s recommended tire pressure. Even if the light turns on
and a short time later turns off, your tire pressure still needs to be
checked. Visit www.checkmytires.org for additional information.
When your temporary spare tire is installed
When one of your road tires needs to be replaced with the temporary spare,
the TPMS system will continue to identify an issue to remind you that the
damaged road wheel/tire needs to be repaired and put back on your vehicle.
To restore the full functionality of the tire pressure monitoring system,
have the damaged road wheel/tire repaired and remounted on your
vehicle. For additional information, refer to Changing tires with TPMS
in this section.
Tires, Wheels and Loading
233
2011 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)