Ford 2006 Mountaineer Owner's Manual page 190

Tires, Wheels and Loading
Changing tires with TPMS
Each road tire is equipped with
a tire pressure sensor fastened
to the inside rim of the wheel.
The pressure sensor is covered
by the tire and is not visible
unless the tire is removed. The
pressure sensor is located
opposite (180 degrees) from the
valve stem. Care must be taken
when changing the tire to avoid
damaging the sensor. It is
recommended that you always have
your tires serviced by an authorized
dealer.
The tire pressure should be checked
periodically (at least monthly) using
an accurate tire gauge, refer to Inflating your tires in this chapter.
Understanding your Tire Pressure Monitoring System (TPMS)
The Tire Pressure Monitoring System measures pressure in your four road
tires and sends the tire pressure readings to your vehicle every minute
while you are driving and once every 6 hours when your vehicle is parked.
The Low Tire Warning Lamp will turn ON if the tire pressure is 25% below
the pressure listed on the Safety Compliance Certification Label
(approximately 6 to 9 psi below the manufacturer's recommend tire
pressure). If the tire pressure increases 2 psi above the "Light ON"
threshold, then the TPMS light will turn OFF. Once the light is illuminated,
your tires are under inflated and need to be inflated to the manufacturer's
recommended tire pressure. Even if the light turns ON and a short time
later turns OFF, your tire pressure still needs to be checked.
In short, once the light has turned ON, at least one tire may be under
inflated.
When your temporary spare tire is installed (if equipped)
When one of your road tires needs to be replaced with the temporary
spare (T-type spare/Mini spare or Dissimilar 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. During this
time, the low tire warning light can periodically return or stay on,
depending on the state of the damaged road wheel/tire. This will include
messages from the message center (if equipped).
190
2006 Mountaineer (mnt)
Owners Guide (post-2002-fmt)
USA (fus)