Jeep Grand Cherokee 2011 Owner's Manual page 518

516 MAINTAINING YOUR VEHICLE
• Avoid using abrasive compounds and power buffing
that may diminish the gloss or thin out the paint
finish.
CAUTION!
• Do not use abrasive or strong cleaning materials
such as steel wool or scouring powder, which will
scratch metal and painted surfaces.
• Use of power washers exceeding 1,200 psi
(8 274 kPa) can result in damage or removal of
paint and decals.
Special Care
• If you drive on salted or dusty roads or if you drive
near the ocean, hose off the undercarriage at least once
a month.
• It is important that the drain holes in the lower edges
of the doors, rocker panels and tailgate must be kept
clear and open.
• If you detect any stone chips or scratches in the paint,
touch them up immediately. The cost of such repairs is
considered the responsibility of the owner.
• If your vehicle is damaged due to a collision or similar
cause which destroys the paint and protective coating,
have your vehicle repaired as soon as possible. The
cost of such repairs is considered the responsibility of
the owner.
• If you carry special cargo such as chemicals, fertilizers,
de-icer salt, etc., assure that such materials are well
packaged and sealed.
• If a lot of driving is done on gravel roads, consider
mud or stone shields behind each wheel.