TREAD Replace your tires when treadwear indicators (horizontal bars) appear across the tread grooves. ROTATION Have your tires rotated every 5,000miles for even treadwear. ALIGNMENT Have alignment checked at least every 10,000 miles to prevent uneven wear and tire damage. INFLATION Keep tires inflated at the PSI (pounds per square inch) recommended by the vehicle manufacturer (found on placard inside driver's door or in the owner's manual). LOAD LIMIT Don't overload your vehicle beyond the manufacturer's recommended load limit (also found on driver's door placards, tire sidewalls, or in owner's manual).