2007 Cadillac CTS-V Owner's Manual - Page 412

The 18-inch performance tires, size 245/45R18 96V, used on some vehicles, meet the General Motors Tire Performance Criteria Specification (TPC Spec) rating but the TPC Spec code has not been molded onto the tire's sidewall. If your vehicle has these tires, and you need to replace them, you can still get these TPC Spec rated tires by asking your GM dealer. Your GM dealer can order these tires by part number. This way, your vehicle will continue to give the proper endurance, handling, traction, and ride as the original tires. Winter tires with the same speed rating as your vehicle's original equipment tires may not be available for H, V, W, and ZR speed rated tires. If you choose snow tires with a lower speed rating, never exceed the tire's maximum speed capability. {CAUTION: Mixing tires could cause you to lose control of your vehicle while driving. If you mix tires of different sizes, brands, or types (radial and bias-belted tires) the vehicle may not handle properly, and you could have a crash. Using tires of different sizes, brands, or types may also cause damage to your vehicle. Be sure to use the correct size, brand, and type of tires on all wheels. Your vehicle may have a compact spare tire and wheel assembly. It is all right to drive with your vehicle's compact spare tire temporarily. It was developed for use on your vehicle. See Compact Spare Tire (CTS Only) on page 434. 412