GM Service Manual Online
For 1990-2009 cars only

To find out what kind and size of tires you need, look at the tire pressure information label attached inside the glove box.

Make sure the replacements are the same size, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires.

Caution: Mixing tires could cause you to lose control while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes may also cause damage to your vehicle. Be sure to use the same size and type tires on all wheels.

Caution: If you use bias-ply tires on the vehicle, the wheel rim flanges could develop cracks after many miles of driving. A tire and/or wheel could fail suddenly, causing a crash. Use only radial-ply tires with the wheels on the vehicle.