Other information:
The life of your tires is dependent on many factors, including driving habits,
road
conditions, vehicle loading, inflation pressure, maintenance history, speed, and
environmental conditions (even when the tires are not in use).
In addition to regular inspections and inflation pressure maintenance, it is
recommended that you have annual inspections performed once the tires reach five
years old...
The system can be used when the following conditions are met.
The lane in which you are driving has detectable lane markers on both
sides, and
your vehicle is in the center of the lane.
The vehicle speed is between about 45 and 90 mph (72 and 145 km/h)...