2013 Chevrolet Silverado 2500 HD Crew Cab Owner Manual - Page 441

Vehicle Care Check that the spare tire, if the vehicle has one, is stored properly. Push, pull, and then try to rotate or turn the tire. If it moves, tighten the cable. See "Storing a Flat or Spare Tire and Tools" under Tire Changing on page 10‑73. more evenly if they are rotated. See Tire Inspection on page 10‑62 and Tire Rotation on page 10‑63. Also see Maintenance Schedule on page 11‑3. 10-65 { WARNING If the vehicle is operated with a tire that is underinflated, the tire can overheat. An overheated tire can lose air suddenly or catch fire. You or others could be injured. Properly inflate all tires, including the spare. See Tire Pressure on page 10‑56, for information on proper tire inflation. Dual Tire Rotation When the vehicle is new, or whenever a wheel, wheel bolt, or wheel nut is replaced, check the wheel nut torque after 160, 1 600, and 10 000 km (100, 1,000, and 6,000 mi) of driving. For proper torque and wheel nut tightening information, see "Removing the Flat Tire and Installing the Spare Tire" under Tire Changing on page 10‑73. The outer tire on a dual wheel setup generally wears faster than the inner tire. Tires last longer and wear When It Is Time for New Tires Factors, such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires. Treadwear indicators are one way to tell when it is time for new tires. Treadwear indicators appear when the tires have only 1.6 mm (1/16 in) or less of tread remaining. Some commercial truck tires may not have treadwear indicators. See Tire Inspection on page 10‑62 and Tire Rotation on page 10‑63 for additional information. The rubber in tires ages over time. This also applies to the spare tire, if the vehicle has one, even if it is never used. Multiple factors including temperatures, loading conditions, and inflation pressure