Chevrolet/GMC 2.8L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-13336155) - 2020 - CRC - 5/6/19
20
Driving and Operating
For vehicles that did not come with
a winter cover, a GM winter cover
can be purchased. See your dealer
for additional information.
When the winter cover is in use, the
heater, ventilation, and air
conditioning AUTO mode may not
function properly. Use the manual
settings for comfort.
Usage Guidelines
The winter cover should only be
used while operating the vehicle in
extremely cold temperatures or in
heavy snow for extended periods. In
these temperatures, the vehicle
does not need a large amount of air
to properly cool the engine. When
more airflow is required to cool the
vehicle, the winter cover should not
be used. The following usage
guidelines will allow adequate
airflow for proper radiator and air
cooler performance:
.
Do not use the winter cover if
towing a trailer. The vehicle may
overheat if the radiator is
covered while towing.
.
Do not modify the cover. The
winter cover does not cover
some sections of the front of the
vehicle to provide enough
airflow.
.
When the winter cover is used,
the outside air temperature
display may not function
properly.
.
Keep the underside of the winter
cover as clean as possible.
Remove monthly or as
necessary and clean away dust
and debris.
.
Use only a mild soap to clean.
Do not use harsh soap, strong
detergents, or vinyl protectant/
sealant type products as they
may damage the special finish.
Allow the winter cover to dry
completely before reinstalling.
Installation Instructions
When first trying to fit the cover, it
may appear to be undersized but
will stretch during installation to
ensure a tight fit. The initial
installation of the cover is best
performed when the winter cover
is warm.
1. Open the hood and secure it
with the prop rod.