Interior Care - Chevrolet 4500 HD 2023 Manual

When cleaning the radiator core (1) and
charge air cooler core (2) , do not crush or
damage the fins (3). The fins are very fragile
so be careful not to bend them out of
shape. If they become deformed, their
cooling efficiency will be impaired. Before
cleaning, take steps to ensure that no water
will splash onto the surrounding electrical
components and wires. If stubborn dirt still
remains even after the radiator core and
charge air cooler core (diesel) have been
cleaned, have the vehicle inspected and
serviced.
Corrosion Protection
Your vehicle has been designed and built to
resist corrosion. Special materials and
protective finishes were used on most parts
of your vehicle when it was built to help
maintain good appearance, strength, and
reliable operation. However, some parts
which normally are not visible (such as
those under the vehicle and under the hood)
are such that surface rust will not affect
their reliability. So corrosion protection is
not needed or used on these parts.
Sheet Metal Damage
If your vehicle is damaged and requires
sheet metal repair or replacement, make
sure the body repair shop applies
anti-corrosion material to the parts repaired
or replaced so that corrosion protection is
restored. (Also see "Finish Damage" which
follows.)
Foreign Material Deposits
Calcium chloride and other salts, ice-melting
agents, road oil and tar, tree sap, bird
droppings, chemicals from industrial
chimneys and other foreign matter may
damage vehicle finishes if left on painted
surfaces. Prompt washing may not
completely remove all of these deposits.
Other cleaners may be needed. When using
chemical cleaners, be sure they are safe for
use on painted surfaces.
Finish Damage
Any stone chips, fractures or deep scratches
in the finish should be repaired promptly.
Bare metal will corrode quickly and may
develop into major repair expense. Minor
chips and scratches can be repaired with
touch up materials available from your
authorized dealer or other service outlets.
Vehicle Care
Larger areas of finish damage can be
corrected in your dealer's body and
paint shop.
Underbody Maintenance
Corrosive materials used for ice and snow
removal, and dust control can collect on the
underbody. If these materials are not
removed, accelerated corrosion (rust) can
occur on underbody parts such as fuel lines,
frames, floor pan and exhaust system even
though they have been provided with
corrosion protection.
At least every spring, flush these materials
from the underbody with plain water. Take
care to clean well any areas where mud and
other debris can collect. Sediment packed in
closed areas of the frame should be
loosened before being flushed. If desired,
your authorized dealer can do this for you.

Interior Care

General
Remove dust and dirt from the interior of
the cab using an automotive cleaner or
vacuum cleaner, and gently wipe surfaces
clean using a cloth wet with warm or cold
water.
307