Chevrolet EXPRESS - 2011 Manual page 367

Always use waxes and polishes that
are non-abrasive and made for a
basecoat/clearcoat paint finish.
Foreign materials such as calcium
chloride and other salts, ice melting
agents, road oil and tar, tree sap,
bird droppings, chemicals from
industrial chimneys, etc., can
damage the vehicle's finish if they
remain on painted surfaces. Wash
the vehicle as soon as possible.
If necessary, use non-abrasive
cleaners that are marked safe for
painted surfaces to remove
foreign matter.
Exterior painted surfaces are
subject to aging, weather and
chemical fallout that can take their
toll over a period of years.
To help keep the paint finish looking
new, keep the vehicle garaged or
covered whenever possible.
Bright metal parts should be
cleaned regularly to keep their
luster. Washing with water is all that
is usually needed. However, chrome
polish may be used on chrome or
stainless steel trim, if necessary.
Use special care with aluminum
trim. To avoid damaging protective
trim, never use auto or chrome
polish, steam or caustic soap to
clean aluminum. A coating of
wax, rubbed to high polish, is
recommended for all bright
metal parts.
Clean the outside of the windshield
with glass cleaner.
Clean the rubber blades using a
lint free cloth or paper towel soaked
with windshield washer fluid or a
mild detergent.
Wash the windshield thoroughly
when cleaning the blades. Bugs,
road grime, sap and a buildup of
vehicle wash/wax treatments may
cause wiper streaking. Replace the
wiper blades if they are worn
or damaged.
Wipers can be damaged by:
Extreme dusty conditions.
Sand and salt.
Heat and sun.
Snow and ice, without proper
removal.