Chevrolet/GMC 3.0L Duramax Diesel Engine Supplement (GMNA-Localizing-
U.S./Canada-13336148) - 2020 - CRC - 9/5/19
2
Introduction
Introduction
The names, logos, emblems,
slogans, vehicle model names, and
vehicle body designs appearing in
this manual including, but not limited
to, GM, the GM logo, CHEVROLET,
GMC, the CHEVROLET and GMC
Truck Emblems, SILVERADO,
SIERRA, and Duramax are
trademarks and/or service marks of
General Motors LLC, its
subsidiaries, affiliates, or licensors.
For vehicles first sold in Canada,
substitute the name
“
General
Motors of Canada Company
”
for
GMC and Chevrolet Motor Division
wherever they appear in this
manual.
This manual describes features that
may or may not be on the vehicle
because of optional equipment that
was not purchased on the vehicle,
model variants, country
specifications, features/applications
that may not be available in your
region, or changes subsequent to
the printing of this owner
’
s manual.
Refer to the purchase
documentation relating to your
specific vehicle to confirm the
features.
This manual contains information
that pertains to the operation of the
diesel engine. It also contains the
Diesel Maintenance Schedule. The
sections in this manual correspond
to the sections in the owner
’
s
manual. This manual, along with the
owner
’
s manual, will assist you in
the proper use and maintenance of
the vehicle.
Keep this manual in the vehicle for
quick reference.
Canadian Vehicle Owners
A French language manual can be
obtained from your dealer, at
www.helminc.com, or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de
ce guide en français auprès du
concessionnaire ou à l'adresse
suivante:
Helm, Incorporated
Attention: Customer Service
47911 Halyard Drive
Plymouth, MI 48170
USA
Using this Supplement
This supplement contains
information specific to the unique
components of the vehicle. It does
not explain everything you need to
know about the vehicle. Read this
supplement along with the owner
’
s
manual to learn about the vehicle's
features and controls.
Litho in U.S.A.
Part No. 84458629 B Second Printing
©
2019 General Motors LLC. All Rights Reserved.