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
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 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.
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 in-
stalled
in this section.
TPMS
malfunc-
tion
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.
2009 Expedition
(exd)
Owners Guide, 2nd Printing
USA
(fus)
Tires, Wheels and Loading
265
