1996 Pontiac Trans Sport Owner's Manual - Page 296

Buying New Tires To find outwhat kind and size tires you need, loPk at of the CertificatiodTire label. I i The tires installedon your vehiclewhen it a Tire Performance Criteria Specification (TPC number on each tire's sidewall. When you get get ones with that same TPC Spec number. your vehicle will continue tohave tires that to give proper endurance, traction, rideand other on your vehicle. If your tires havean design, the TPC number willbe (for mud and snow), Mixing tires couldcause you to lose control while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the vehicle not may handle properly, and could have a crash. you Using tires of different sizes may also cause damage to your vehicle. Be sure use the same to size and type tireson all wheels. It's all right to drive with your compact spare, though. It was developed for use on your vehicle. If you ever replaceyour tires with those not kavin a TPC Spec number, make sure they are the same size, load range, speed rating construction type (bias, and bias-belted or radial) as your original tires. - 1, $-x... d