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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 325
2014 Expedition (exd)
Owners Guide gf, 1st Printing, June 2013
USA (fus)
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