1993 Pontiac Grand Am Owner's Manual - Page 235

Service & Appearance Care Buying New Tires To find out what kind and size of tires you need, look at the Tire-Loading Information label. The tires installed on your vehicle when When lt's Time for New Tires Tire Inspection and Rotation it was new had a Tire Performance (CONT) One way to tell when it's time for new Criteria Specification (TPC Spec) tires is to checkthe treadwear indicators, which willappear when your number on each tire's sidewall. When you get new tires, get ones with that 1 Rust or dirt on a wheel, or on tires have only 2/32 inch (1.6 mm) or same TPC Spec number. That way, your less of tread remaining. b the. parts t which it i o s vehicle will continue to have tires that htened, ean fnake wheel nuts You need a new tire if: are designed to give proper endurance, become loose after a time, The You can see the indicators at three handling, speed rating, traction, ride wheel could come off and cause an I places around the tire. and other things during normal service accident. When you change a on your vehicle.If your tires have anallYou can see cordor fabric showing wheel, remove any rust or dirt season tread design, the TPC number through the tire's rubber. from p l k s where the wheel will be followed by a "MS" (for mud The tread or sidewall is cracked. cut. attaches t the vehicle. ~nan o I I or snagged deep enough to show cord and snow). emergency, you can use a cloth or If you ever replace your tires with those or fabric. a p p r towel ta do this; but be not having a TPC Spec number, make The tire has a bump, bulge split. or sure ta use a scraper or wire brush . sure they are the same size, load range, later, if you need to, to get all the The tire has a puncture, cut, or other speed rating and construction type (bias, rust or dirt off, (See the Index damage that can't be repaired well bias-belted or radial) as your original undkr h g i i n g a 2?i?af Ere.) because of the size or location of the I tires. I damage. - I 7 ... 234