2008 GMC Envoy Owner's Manual - Page 351

Tires Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your vehicle Warranty booklet for details. CAUTION: (Continued) • Underinflated tires pose the same danger as overloaded tires. The resulting accident could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when your tires are cold. See Inflation - Tire Pressure on page 5-64. • Overinflated tires are more likely to be cut, punctured, or broken by a sudden impact - such as when you hit a pothole. Keep tires at the recommended pressure. • Worn, old tires can cause accidents. If your tread is badly worn, or if your tires have been damaged, replace them. See High-Speed Operation on page 5-66 for inflation pressure adjustment for high speed driving. {CAUTION: • Poorly maintained and improperly used tires are dangerous. • Overloading your tires can cause overheating as a result of too much flexing. You could have an air-out and a serious accident. See Loading Your Vehicle on page 4-34. CAUTION: (Continued) 5-57