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. See 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. Make sure tires are at the proper
pressure. See
Inflating your tires
in this chapter.
2. After inflating your tires to the
manufacturer’s recommended
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 turns
off.
Spare tire in use Repair the damaged road wheel
and tire and reinstall it on the
vehicle to restore system function.
For a description on how the
system functions, see
When your
temporary spare tire is installed
in this section.
Tire pressure
monitoring
system
malfunction
If the tires are properly inflated
and the spare tire is not in use but
the light remains on, contact your
authorized dealer as soon as
possible.
Tire rotation
without sensor
training
On vehicles with different front and
rear tire pressures, the system
must be retrained following every
tire rotation. See
Tire rotation
in
this chapter.
Wheels and Tires
353
2013 Expedition
(exd)
Owners Guide gf, 3rd Printing, April 2013
USA
(fus)