FORD 2003 Windstar v.2 - Manual (Page 218)

which all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels of
performance on the laboratory test wheel than the minimum required by
law.
The temperature grade for this tire is established for a tire that
is properly inflated and not overloaded. Excessive speed,
underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
SERVICING YOUR TIRES
Low tire warning
The low tire warning system is designed to detect a significant loss of
inflation in any one of your tires on your vehicle. The system uses the
Anti-lock brake wheel speed sensors to detect a change in wheel speed
due to tire deflation.
When a tire loses inflation, the low
tire warning system detects the
change and illuminates the low tire
warning indicator light as shown.
If the light remains on while driving,
check the tire pressure refer to “Checking the tire pressure” in this
chapter. The low tire warning indicator light will also illuminate when
using a temporary spare, refer to “Changing the tires” in the Roadside
emergencies chapter.
The low tire warning system may not detect an under-inflated
tire under all conditions and is not a substitute for manually
checking tires regularly for proper inflation.
When to RESET the Low Tire Warning System:
after any of the following
• Tire rotation
• One or more tires have been replaced
• Tire balancing
• Wheel alignment
• Adjusting the pressure on one or more tires (note: tire pressures are
often adjusted during oil change service)
Maintenance and Specifications
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