1996 Cadillac Seville Owner's Manual - Page 298

When It's Time for New Tires One way to tell when it's time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. The tire has a bump, bulgeor split. The tire has a puncture, cutor other damagethat can't berepaired well because of the size orlocation of the damage. Buying New Tires To find out what kind and sizeof tires you need, look at the Tire-Loading Information label. The tires installed on your vehicle when it was new had a Tire Performance Criteria Specification (TPC Spec) number on each tire'ssidewall. When you get new tires, get ones with that same TPCSpec number. That way your vehicle will continue tohave tires thatare designed to giveproper endurance, handling, speed rating, traction, ride and other thingsduring normal service on your vehicle. If your tires havean all-seasontread design, the TPC number will be followed by an "MS" (for mud and snow). If you ever replace your tires with those not having a TPC Spec number, make surethey are the samesize, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires. You need a new tire if any of the following statements are true: 0 You can see the indicators at three or more places around the tire. You can see cord or fabric showing through the tire's rubber. The tread or sidewall is cracked, cut or snagged deep enough to show cord or fabric. 0 6-39