FORD 2004 Freestar v.2 - Manual (Page 260)

Reset with message center:
To reset turn the ignition to the ON
position, press the set up button on
the message center until “SYSTEM
CHECK” is displayed. Press the
RESET button until “HOLD RESET
TO RELEARN” is displayed, continue to hold the button for three
seconds. The low tire warning indicator light will flash three times as the
low tire warning system begins to initialize.
The system normally requires 15 to 20 minutes of driving in each of
three speed ranges to learn how the tires behave after the system has
been reset. However, the system will become functional in each speed
range as soon as learning completes in each individual speed range.
Speed ranges:
• Low 40–68 km/h (25–42 mph)
• Medium 68–100 km/h (42–62 mph)
• High – above 100 km/h (62 mph)
This system may not function properly under the following conditions:
• Uneven tread wear.
• Driving on loose or low traction surfaces such as gravel, snow or slush.
• Using tire chains
• Initial tire pressures out of specified range.
• Two or more under inflated tires.
• Sudden loss of tire pressure.
• Vehicle speeds less than 30 km/h (20 mph), greater than 120 km/h (70
mph) or driving duration less than 10 miles.
• Transporting a heavy load or towing a trailer.
• A different tire was replaced and was not the same brand, type, size,
speed rating, load carrying capacity and DOT code as the other tire on
the same axle.
• System was not reset after tire rotation, air pressure adjustment, a tire
change, wheel alignment or tire balancing.
• System was not reset after the ABS warning lamp illuminates.
The low tire warning feature can be turned off by your dealer.
Maintenance and Specifications
259