GMC 2011 Sierra Denali Owner's Manual page 439

Aluminum or Chrome-Plated
Wheels and Trim
The vehicle may have either
aluminum or chrome-plated wheels.
Keep the wheels clean using a soft
clean cloth with mild soap and
water. Rinse with clean water. After
rinsing thoroughly, dry with a soft
clean towel. A wax may then be
applied.
Notice: Chrome wheels and other
chrome trim may be damaged if
the vehicle is not washed after
driving on roads that have been
sprayed with magnesium,
calcium or sodium chloride.
These chlorides are used on
roads for conditions such as ice
and dust. Always wash the
vehicle's chrome with soap and
water after exposure.
Notice: Using strong soaps,
chemicals, abrasive polishes,
cleaners, brushes, or cleaners
that contain acid on aluminum or
chrome-plated wheels, could
damage the surface of the
wheel(s). The repairs would not
be covered by the vehicle
warranty. Use only approved
cleaners on aluminum or
chrome-plated wheels.
The surface of these wheels is
similar to the painted surface of the
vehicle. Do not use strong soaps,
chemicals, abrasive polishes,
abrasive cleaners, cleaners with
acid, or abrasive cleaning brushes
on them because they could
damage the surface. Do not use
chrome polish on aluminum wheels.
Vehicle Care
Notice: Using chrome polish on
aluminum wheels could damage
the wheels. The repairs would
not be covered by the vehicle
warranty. Use chrome polish on
chrome wheels only.
Use chrome polish only on
chrome-plated wheels, but avoid
any painted surface of the wheel,
and buff off immediately after
application.
Notice: Driving the vehicle
through an automatic car wash
that has silicone carbide tire
cleaning brushes, could damage
the aluminum or chrome-plated
wheels. The repairs would not be
covered by the vehicle warranty.
Never drive a vehicle that has
aluminum or chrome-plated
wheels through an automatic car
wash that uses silicone carbide
tire cleaning brushes.
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