FORD 2010 F-550 v.1 - Manual (Page 238)

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.
When you believe your system is not operating properly
The main function of the Tire Pressure Monitoring System is to warn you
when your tires need air. It can also warn you in the event the system is no
longer capable of functioning as intended. Please refer to the following
chart for information concerning your Tire Pressure Monitoring System:
Low Tire Pressure
Warning Light Possible cause Customer Action Required
Solid Warning Light Tire(s)
under-inflated 1. Check your tire pressure to ensure
tires are properly inflated; refer to
Inflating your tires in this chapter.
2. After inflating your tires to the
manufacturer’s recommended
inflation pressure as shown on the
Tire Label (located on the edge of
driver’s door or the B-Pillar), the
vehicle must be driven for at least
two minutes over 20 mph (32 km/h)
before the light will turn OFF.
Spare tire in
use Your temporary spare tire is in use.
Repair the damaged road wheel/tire
and reinstall it on the vehicle to
restore system functionality. For a
description on how the system
functions, refer to When your
temporary spare tire is installed in
this section.
TPMS
malfunction If your tires are properly inflated and
your spare tire is not in use and the
light remains ON, have the system
inspected by your authorized dealer.
Tire rotation
without sensor
training On vehicles with different front and
rear tire pressures, the TPMS system
must be retrained following every
tire rotation. Refer to Tire rotation
in this chapter.
Tires, Wheels and Loading
238
2010 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)