GM Service Manual Online
For 1990-2009 cars only

We recommend that you regularly inspect your vehicle's tires for signs of wear or damage. See When It Is Time for New Tires for additional information.

If your vehicle has P235/50R18 size tires they should be rotated any time you notice unusual wear. Rotate the tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See When It Is Time for New Tires and Wheel Replacement .


Object Number: 807638  Size: B2

When rotating P235/50R18 size tires, always use the correct rotation pattern shown here.

After the tires have been rotated, adjust the front and rear inflation pressures as shown on the Tire and Loading Information label, see Inflation - Tire Pressure and Loading the Vehicle . Vehicles that have the Tire Pressure Monitor System (TPMS) need the TPMS sensors reset after a tire rotation is performed. A special tool is needed to reset the sensor identification codes. See your dealer/retailer for service. Make certain that all wheel nuts are properly tightened. See Wheel Replacement and "Wheel Nut Torque" under Capacities and Specifications .

Caution: Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause a crash. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off.

XLR-V Tires

Tire rotation is not recommended if your vehicle has P235/45R19 size tires on the front axle and P255/40R19 size tires on the rear axle. Different tire sizes front to rear should not be rotated.