Chevrolet 2011 Volt Owner's Manual page 455

Use only lukewarm or cold water, a
soft cloth, and a car washing soap
to clean exterior lamps and lenses.
Follow instructions under Washing
the Vehicle later in this section.
Occasional waxing or mild polishing
of the vehicle by hand may be
necessary to remove residue from
the paint finish. Approved cleaning
products can be obtained from your
dealer.
If the vehicle has a basecoat/
clearcoat paint finish, the clearcoat
gives more depth and gloss to the
colored basecoat.
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 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 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. Wash with water or use
chrome polish 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.