2014 Chevrolet Silverado 3500 HD Crew Cab Owner Manual - Page 414

10-48 Vehicle Care See Tire Pressure for High-Speed Operation on page 10-57 for inflation pressure adjustment for high speed driving. 20‐Inch Tires If the vehicle has 20‐inch P275/ 55R20 size tires, they are classified as touring tires and are designed for on road use. The low‐profile, wide tread design is not recommended for "off‐road" driving or commercial uses such as snow plowing. See Off-Road Driving on page 9-5 and Adding a Snow Plow or Similar Equipment on page 9-96 for additional information. Notice: Low‐profile tires are more susceptible to damage from road hazards or curb impact than standard profile tires. Tire and/or wheel assembly damage can occur when coming into contact with road hazards like, potholes, or sharp edged objects, or when sliding into a curb. The warranty does not cover this type of damage. Keep tires set to the correct inflation pressure and, when possible, avoid contact with curbs, potholes, and other road hazards. Warning (Continued) . Worn or old tires can cause a crash. If the tread is badly worn, replace them. Replace any tires that have been damaged by impacts with potholes, curbs, etc. Improperly repaired tires can cause a crash. Only the dealer or an authorized tire service center should repair, replace, dismount, and mount the tires. Do not spin the tires in excess of 56 km/h (35 mph) on slippery surfaces such as snow, mud, ice, etc. Excessive spinning may cause the tires to explode. . . All-Season Tires This vehicle may come with all-season tires. These tires are designed to provide good overall performance on most road surfaces and weather conditions. Original equipment tires designed to GM's specific tire performance criteria have a TPC specification code molded onto the sidewall. Original equipment all-season tires can be identified by the last two characters of this TPC code, which will be "MS." .