FORD 2009 F-150 v.2 - Manual (Page 236)

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.
2009 F-150 (f12)
Owners Guide, 2nd Printing
USA (fus)
Tires, Wheels and Loading
236