FORD 2007 Explorer Sport Trac v.1 - Manual (Page 178)

Low Tire Pressure
Warning Light Possible cause Customer Action Required
Flashing Warning
Light Spare tire in use Your temporary spare tire is in
use. Repair the damaged road
wheel and re-mount it on the
vehicle to restore system
functionality. For a description
of how the system functions
under these conditions, refer to
When your temporary spare
tire is intalled in this section.
TPMS
malfunction If your tires are properly
inflated and your spare tire is
not in use and the TPMS
warning light is still ON, have
the system inspected by your
authorized dealer.
When inflating your tires
When putting air into your tires (such as at a gas station or in your
garage), the Tire Pressure Monitoring System may not respond
immediately to the air added to your tires.
It may take up to two minutes of driving over 20 mph (32 km/h) for the
light to turn OFF after you have filled your tires to the recommended
tire pressure.
How temperature affects your tire pressure
The Tire Pressure Monitoring System (TPMS) monitors tire pressure in
each pneumatic tire. While driving in a normal manner, a typical
passenger tire inflation pressure may increase approximately 2 to 4 psi
(14 to 28 kPa) from a cold start situation. If the vehicle is stationary
over night with the outside temperature significantly lower than the
daytime temperature, the tire pressure may decrease approximately 3 psi
(20.7 kPa) for a drop of 30° F (16.6° C) in ambient temperature. This
lower pressure value may be detected by the TPMS as being lower than
the recommended inflation pressure and activate the TPMS warning for
low tire pressure. If the low tire pressure warning light is ON, visually
check each tire to verify that no tire is flat. If one or more tires are flat,
repair as necessary. Check air pressure in the road tires. If any tire is
2007 07+ Explorer Sport Trac (esp)
Owners Guide (post-2002-fmt)
USA (fus)
Tires, Wheels and Loading
178