Vehicle Care 9-73Wheel Alignment and TireBalanceThe tires and wheels on the vehiclewere aligned and balanced carefullyat the factory to give the longest tirelife and best overall performance.Adjustments to wheel alignment andtire balancing will not be necessaryon a regular basis. However, if thereis unusual tire wear or the vehiclepulls to one side or the other, thealignment should be checked. If thevehicle vibrates when driving on asmooth road, the tires and wheelsmight need to be rebalanced. Seeyour dealer/retailer for properdiagnosis.Wheel ReplacementReplace any wheel that is bent,cracked, or badly rusted orcorroded. If wheel nuts keep comingloose, the wheel, wheel bolts, andwheel nuts should be replaced.If the wheel leaks air, replace it(except some aluminum wheels,which can sometimes be repaired).See your dealer/retailer if any ofthese conditions exist.Your dealer/retailer will know thekind of wheel you need.Each new wheel should have thesame load-carrying capacity,diameter, width, offset, and bemounted the same way as the one itreplaces.If you need to replace any of thewheels, wheel bolts, wheel nuts,or Tire Pressure Monitor System(TPMS) sensors, replace them onlywith new GM original equipmentparts. This way, you will be sure tohave the right wheel, wheel bolts,wheel nuts, and TPMS sensors forthe vehicle.{ WARNINGUsing the wrong replacementwheels, wheel bolts, or wheelnuts on your vehicle can bedangerous. It could affect thebraking and handling of yourvehicle, make your tires lose airand make you lose control. Youcould have a collision in whichyou or others could be injured.Always use the correct wheel,wheel bolts, and wheel nuts forreplacement.Notice: The wrong wheel canalso cause problems with bearinglife, brake cooling, speedometeror odometer calibration,headlamp aim, bumper height,vehicle ground clearance, and tireor tire chain clearance to thebody and chassis.See If a Tire Goes Flat onpage 9‑74 for more information.