Reset the Tire Pressure Monitor System. See TirePressure Monitor Operation on page 6-65.Make certain that all wheel nuts are properlytightened. See “Wheel Nut Torque” underCapacities and Specifications on page 6-113.{ CAUTION:Rust or dirt on a wheel, or on the parts towhich it is fastened, can make wheel nutsbecome loose after time. The wheel couldcome off and cause an accident. When youchange a wheel, remove any rust or dirt fromplaces where the wheel attaches to thevehicle. In an emergency, you can use acloth or a paper towel to do this; but besure to use a scraper or wire brush later,if needed, to get all the rust or dirt off.See Changing a Flat Tire on page 6-78.Make sure the spare tire is stored securely.Push, pull, and then try to rotate or turn the tire.If it moves, tighten the cable. See Storing a Flator Spare Tire and Tools on page 6-92.When It Is Time for New TiresVarious factors, such as maintenance, temperatures,driving speeds, vehicle loading, and road conditions,influence when you need new tires.One way to tell when itis time for new tires is tocheck the treadwearindicators, which appearwhen your tires have only1/16 inch (1.6 mm) or lessof tread remaining. Somecommercial truck tiresmay not have treadwearindicators.6-70
