1996 Pontiac Bonneville Owner's Manual - Page 290

The tire has a puncture, or other damage that cut can't be repaired well because the size or location of of the damage. A CAUTION: Mixing tires could cause to lose control while you driving. If you mix tiresof different sizes or types To find out what kind and sizetires you need, look at of (radial and bias-belted tires), the vehicle may not the Tire-Loading Information label. handle properly, and you could have a crash. The tires installed on your vehicle when new had it was Using tiresof different sizes may also cause a Tire Performance Criteria Specification (TPC Spec) number oneach tire's sidewall. When you get new tires, damage to your vehicle. Be sure to use the same size and type tires on four wheels. all get ones with that same TPC Spec number. That way to your vehicle will continue to have tires that are designed It's all right drive with your compact spare, to give proper endurance, handling, speed rating, for though. It was developed use on your vehicle. traction, ride and other things during normal service on your vehicle.If your tires have an all-season tread design, the TPC number will followed by an be "MS" Uniform TireQuality Grading (for mud and snow). The following information relates to the system developed If you ever replace your tires with those not having a by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction TPC Spec number, make sure they the same size, are and temperature performance.(Th.zs applies only to load range, speed rating and construction type (bias, vehicles sold in the United States.) The grades are molded bias-belted or radial) as your original tires. on the sidewalls of most passenger cartires. The Uniform Tire Quality Grading system does not apply to deep tread, winter-type snow tires, space-saver temporary use spare or tires, tires withnominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. I Buying New Tires 6-45