Owner's Manual
Page 328
Dirt packed in the paint job causes this, Buick will repair, at no charge to the owner, the surfaces of the frame should be loosened before being flushed. Airborne pollutants can create a chemical fallout. Chemical Paint ... areas of new vehicles damaged by this for you. Your dealer or an underbody car washing system can collect on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection. If these materials from the underbody with plain water. At least every spring...
Dirt packed in the paint job causes this, Buick will repair, at no charge to the owner, the surfaces of the frame should be loosened before being flushed. Airborne pollutants can create a chemical fallout. Chemical Paint ... areas of new vehicles damaged by this for you. Your dealer or an underbody car washing system can collect on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection. If these materials from the underbody with plain water. At least every spring...