1995 Pontiac Bonneville Owner's Manual - Page 259

Underbody Maintenance Chemicals used for iceand snow removal and dust control cancollect on the underbody. If these are not removed, accelerated corrosion (rust) can occur on the Underbody parts such as fuel lines, kame, floor pan, and exhaust system eventhough they have corrosion protection. At least every spring, flush these materials from the underbody with plain water. Clean any areas where mud and other debris can collect. Dr packed in closed areas it of the frame should be loosened before being flushed. Your dealer or am underbody car washing system can do this for you. Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can €dlupon 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 this fallout conditionwithin 12 months or 12,000 d e s (20 000 km) of purchase, whichever comes first. 6-46