1997 Pontiac Bonneville Owner's Manual - Page 297
1997 Pontiac Bonneville Manual
Page 297 highlights
When to Check Check your tires once a month or more. Don't forget your compact spare tire. It should be at 60 psi (420 kPa). rotation is the most important. See "Scheduled Maintenance Services" in theIndex for scheduled rotation intervals. How to Check Use a goodquality pocket-type gage to check tire pressure. You can't tell if your tires are properly inflated simply bylooking at them. Radial tires may look properly inflated even when they're underinflated. Be sure to put the valve caps back on the valve stems. dirt They help prevent leaks by keeping out and moisture. I m 7 Tire Inspection and Rotation Tires should be rotated every 6,080 to 8,000 miles (10 000 to 13 000 h Any time you notice unusual ) . wear, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See "When It's Time for New Tires'' and "Wheel Replacement" later in this section for more information. The purpose of regular rotation is to achieve more . , unifQmwear for dltires on hvehicle. The first .- n When rotating your tires, always use the correct rotation pattern shown here. Don't include the compact sparetire in your tire rotation. After the tires have been rotated, adjust the front and rear inflation pressures as shown on the Tire-Loading Information label. Make certain that all wheel nuts are properly tightened. See "Wheel Nut Torque" in the Index. .. . .. . 4-44