Pontiac 2004 Grand Prix - Manual (Page 376)

Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on 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, flush these materials from the
underbody with plain water. Clean any areas where mud
and debris can collect. Dirt packed in close areas of
the frame should be loosened before being flushed.
Your dealer or an 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 fall upon and
attack painted surfaces on your vehicle. This damage can
take two forms: blotchy, ring-shaped discolorations, and
small, irregular dark spots etched into the paint surface.
Although no defect in the paint job causes this, GM will
repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs first.
GM Vehicle Care/Appearance
Materials
See your GM dealer for more information on purchasing
the following products.
GM Vehicle Care/Appearance Materials
Description Usage
Polishing Cloth
Wax-Treated Interior and exterior
polishing cloth.
Tar and Road Oil
Remover Removes tar, road oil and
asphalt.
Chrome Cleaner and
Polish Use on chrome or
stainless steel.
White Sidewall Tire
Cleaner Removes soil and black
marks from whitewalls.
Vinyl Cleaner
Cleans vinyl tops,
upholstery and
convertible tops.
Glass Cleaner
Removes dirt, grime,
smoke and fingerprints.
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