Cadillac XT4 2023 Owner's Manual page 318

Caution
Using wax on low gloss black finish
stripes can increase the gloss level and
create a non-uniform finish. Clean low
gloss stripes with soap and water only.
Air Intakes
Clear debris from the air intakes, between
the bonnet and windscreen, when washing
the vehicle.
Shutter System
The vehicle may have a shutter system
designed to help improve fuel economy.
Keep the shutter system clear of debris,
snow and ice. If the check engine light is
activated, please check to see if the shutter
system is clear of debris, snow or ice.
Windscreen and Wiper Blades
Clean the outside of the windscreen with
glass cleaner.
Clean rubber blades using a lint-free cloth or
paper towel soaked with windscreen washer
fluid or a mild detergent. Wash the
windscreen thoroughly when cleaning the
blades. Insects, road grime, sap, and a
build-up of vehicle wash/wax treatments
may cause wiper streaking.
Replace the wiper blades if they are worn or
damaged. Damage can be caused by
extreme dusty conditions, sand, salt, heat,
sun, snow, and ice.
Weatherstrips
Apply weatherstrip lubricant on
weatherstrips to make them last longer, seal
better, and not stick or squeak. Lubricate
weatherstrips at least once a year. Hot, dry
climates may require more frequent
application. Black marks from rubber
material on painted surfaces can be removed
by rubbing with a clean cloth. See
Recommended Fluids and Lubricants 0 330.
Vehicle Care
Tyres
Use a stiff brush with tyre cleaner to clean
the tyres.
Caution
Using petroleum-based tyre dressing
products on the vehicle may damage the
paint finish and/or tyres. When applying
a tyre dressing, always wipe off any
overspray from all painted surfaces on
the vehicle.
Wheels and Wheel Trim
Use a soft, clean cloth with mild soap and
water to clean the wheels. After rinsing
thoroughly with clean water, dry with a
soft, clean towel. A wax may then be
applied.
Caution
Chrome wheels and chrome wheel trim
may be damaged if the vehicle is not
washed after driving on roads that have
been sprayed with magnesium chloride or
calcium chloride. These are used on roads
for conditions such as dust and ice.
Always wash the chrome with soap and
water after exposure.
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