1998 GMC Suburban Owner's Manual - Page 336

Inflation -- Tire Pressure Poorly maintained and improperly used tires are dangerous. 0 Overloading your tires can cause overheating as a result too much friction. of You could have an air-out and a serious accident. See "Loading Your Vehicle" in the Index. 0 Underinflated tires pose the same danger as overloaded tires. The resulting accident could cause serious injury. Check tires all frequently to maintain the recommended pressure. Tire pressure shouldbe checked when your tiresare cold. 0 Overinflated tires are more likely to be cut, punctured or brokenby a sudden impact such as whenyou hit a pothole. Keep tires at the recommended pressure. 0 Worn, old tires can cause accidents. your If tread is badly worn, or if your tires have been damaged, replace them. The Certification/Tire label, which is on the rear edge of the driver's door, or on the incomplete vehicle document in the cab, shows the correct inflation pressures for your tires when they're cold. "Cold" means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). You can operate some vehicles at reduced inflation pressures only when you'll be carrying reduced loads. On those vehicles, the minimum cold inflation pressures for a typical reduced load are printed on the Improved Ride Tire Pressure label located on the driver's door. Weigh the vehicle to find the load on each tire and see the label .for theminimum cold inflation pressures for that load. -- 6-44