1997 Pontiac Bonneville Owner's Manual - Page 309

Cleaning Tires To clean your tires, use a stiff brush witha tire cleaner. Underbody Maintenance Chemicals used for iceand snow removal and dust control can collecton the underbody. If these are not removed, accelerated corrosion (rust)can occur on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection. At least every spring, flushthese materials from the underbody with plain water. Clean any areas where mud and other debris can collect. Dirt packed in closed areas of the frame should b'e loosened before being flushed. Your dealer or an underbody vehicle washing system can do this for you. NOTICE: When applying a tire dressing always take care to wipe off any oversprayor splash from all painted surfaces on the body or wheels of the vehicle. Petroleum-based products may damage the paint finish. Sheet Metal Damage If your vehicle is damaged requires sheet metal and repair or replacement,make sure the body repair shop applies anti-corrosion material tothe parts repaired or replaced to restore corrosion protection. Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on your vehicle. This damage can take two forms: blotchy, ringlet-shaped discolorations, and small irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, Pontiac will repair, at no charge to the owner, the surfaces of new vehicles damaged by fallout condition within this 12 months or 12,000 miles (20 000 k ) purchase, m of whichever occurs first. Finish Damage Any stone chips, fractures or deepscratches in the finish should be repaired right away. Bare metal will corrode quickly and maydevelop into a major repair expense. Minor chips andscratches can be repaired with touch-up materials available from your dealer or other service outlets. Larger areas of finish damage can be corrected in your dealer's body and paint shop. 6-56