Hummer 2007 H3 - Manual (Page 411)

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 your
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. You can help to
keep the paint finish looking new by keeping your
vehicle garaged or covered whenever possible.
Protecting Exterior Bright Metal Parts
Bright metal parts should be cleaned regularly to
keep their luster. Washing with water is all
that is usually needed. However, you may 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.
Windshield, Backglass, and
Wiper Blades
If the windshield is not clear after using the
windshield washer, or if the wiper blade chatters
when running, wax, sap or other material may
be on the blade or windshield.
Clean the outside of the windshield with a
full-strength glass cleaning liquid. The windshield
is clean if beads do not form when you rinse it
with water.
Grime from the windshield will stick to the wiper
blades and affect their performance. Clean
the blade by wiping vigorously with a cloth soaked
in full-strength windshield washer solvent. Then
rinse the blade with water.
Check the wiper blades and clean them as
necessary; replace blades that look worn.
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