Ford Expedition 2009 Owner's Manual page 728

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.
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 Possible
Pressure cause
Warning
Light
Solid Tire(s)
Warning under-
Light inflated
Spare tire
in use
TPMS
malfunc-
tion
2009 Expedition (exd)
Owners Guide, 2nd Printing
USA (fus)
Tires, Wheels and Loading
Customer Action Required
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 manufactur-
er's recommended inflation pressure as shown
on the Tire Label (located on the edge of driv-
er'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.
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 in-
stalled in this section.
If your tires are properly inflated and your
spare tire is not in use and the light remains
ON, contact your authorized dealer as soon as
possible.
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