1993 Pontiac Bonneville Owner's Manual - Page 256

Wheel Alignment and Tire Balance The wheels on your vehicle were iligned and balanced carefully at the 'actory to give you the longest tire life md best overall performance. :n most cases, you will not need to have jour wheels aligned again. However, if jou notice unusual tire wear or your iehicle pulling one way or the other, the dignment may need to be reset. If you lotice your vehicle vibrating when hiving on a smooth road, your wheels nay need to be rebalanced. Wheel Replacement Replace any wheel that is bent, cracked or badly rusted. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air out, replace it (except some aluminum wheels, which can sometimes be repaired). See your Pontiac dealer if any of these conditions exist. Your dealer will know what kind of wheel you need. Each new wheel should have the same load carrying capacity, diameter, width, offset, and be mountedthe same way as the one it replaces. If you need to replace any of your wheels, wheel bolts, or wheel nuts, replace them only with new GM original equipment parts. This way, you will be sure you have the right wheel, wheel bolts, and wheel nuts for your Pontiac model. A Using the wrong replacement wheels, wheel bolts, or wheel nuts on your vehicle can be dangerous. It could affect the braking and handling of your vehicle, make your tires lose air and make you lose control. You could have a collision in whichyou or others could be injured. Always use the correct wheel, wheel bolts, and wheel nuts for replacement.