Lincoln 1999 Town Car - Manual (Page 179)

Cleaning the exterior lamps
Wash with the same detergent as the exterior of your vehicle. Use glass
cleaner or tar remover if necessary.
To avoid scratching the lamps, do not use a dry paper towel, chemical
solvents or abrasive cleaners.
Cleaning the wiper blades and windshield
If the wiper blades do not wipe properly, clean the wiper blade rubber
element with undiluted windshield washer solution or a mild detergent.
To avoid damaging the blades, do not use fuel, kerosene, paint thinner or
other solvents.
If the wiper still does not wipe properly, this could be caused by
substances on the windshield such as tree sap and some hot wax
treatments used by commercial car washes. Clean the outside of the
windshield with a non-abrasive cleanser such as the non-abrasive
Bon-Ami
௡ powder. Rinse thoroughly with clean water. Do not use
abrasive cleansers on glass as they may cause scratches. The windshield
is clean if beads do not form when you rinse it with water. The
windshield and wiper blades should be cleaned on a regular basis, and
blades or rubber elements replaced when worn.
Cleaning seats equipped with side air bags
Remove dust and loose dirt with a whisk broom or a vacuum cleaner.
Remove fresh spots immediately. Follow the directions that come with
the cleaner. Do not saturate the seat cover with upholstery cleaner.
Do not use chemical solvents or strong detergents when cleaning
the seat mounted side air bag. Such products could contaminate
the side air bag system and affect performance of the side air bag in a
collision.
Cleaning the instrument panel
Clean with a damp cloth, then dry with a dry cloth.
Avoid cleaner or polish that increases the gloss of the upper portion of
the instrument panel. The dull finish in this area helps protect the driver
from undesirable windshield reflection.
Maintenance and care
179