Chevrolet GMC Duramax 2023 Bedienungsanleitung

CMY

ai166480313853_23_MUL_6.6L_Duramax_Diesel_Engine_SUP_COV_en_US_84883864 B_2022OCT10.pdf 1 10/3/2022 9:18:59 AM

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

Contents

Introduction .............................. 1

Instruments and Controls . . . . . . . . . . . . . . . . . 3

Driving and Operating . . . . . . . . . . . . . . . . . . . 10

Vehicle Care ............................. 45

Service and Maintenance . . . . . . . . . . . . . . . . 60

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . 68

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, DENALI, 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 it appears 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, including changes in standard or

optional content.

Refer to the purchase documentation

relating to your specific vehicle to confirm

the features.

This manual contains information that

pertains to the operation of your diesel

engine. It also contains your Diesel

Maintenance Schedule. The sections in this

manual correspond to the sections in your

owner’s manual. This manual, along with

your owner’s manual, will assist you in the

proper use and maintenance of your 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

Litho in U.S.A.

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

2 Introduction

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.

Index

A good place to look for what you need is

the Index in the back of this supplement.

It is an alphabetical list of what is in the

supplement, and the page number where

you will find it.

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

Instruments and Controls 3

Instruments and Controls

Warning Lights, Gauges, and Indicators

Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . 3

Malfunction Indicator Lamp (Check Engine

Light) .................................. 6

Wait-to-Start Light . . . . . . . . . . . . . . . . . . . . . . . 7

Diesel Exhaust Fluid (DEF) Warning

Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Power Take-Off Light . . . . . . . . . . . . . . . . . . . . 8

Information Displays

Driver Information Center (DIC) . . . . . . . . . . 8

Warning Lights, Gauges, and Indicators

Instrument Cluster

Base Level Chevrolet English Cluster Shown, Metric Similar

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

4 Instruments and Controls

Base Level GMC English Cluster Shown, Metric Similar

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

Instruments and Controls 5

Uplevel Chevrolet English Cluster Shown, Metric Similar

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

6 Instruments and Controls

Uplevel GMC English Cluster Shown, Metric Similar

Malfunction Indicator Lamp

(Check Engine Light)

This light is part of the vehicle’s emission

control on-board diagnostic system. If this

light is on while the engine is running, a

malfunction has been detected and the

vehicle may require service. The light should

come on to show that it is working when

the ignition is on with the engine not

running. See “Ignition Positions”in the

owner’s manual.

This light may also come on when the

system has detected a problem with the

Diesel Exhaust Fluid (DEF) management

system. See Diesel Exhaust Fluid 019.

Malfunctions are often indicated by the

system before any problem is noticeable.

Being aware of the light and seeking service

promptly when it comes on may prevent

damage.

Caution

If the vehicle is driven continually with

this light on, the emission control system

may not work as well, the fuel economy

may be lower, and the vehicle may not

run smoothly. This could lead to costly

repairs that might not be covered by the

vehicle warranty.

Caution

Modifications to the engine, transmission,

exhaust, intake, or fuel system, or the

use of replacement tires that do not

meet the original tire specifications, can

cause this light to come on. This could

(Continued)

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

Instruments and Controls 7

Caution (Continued)

lead to costly repairs not covered by the

vehicle warranty. This could also affect

the vehicle’s ability to pass an Emissions

Inspection/Maintenance test. See

Accessories and Modifications 045.

When the light is on, a malfunction has

been detected. Diagnosis and service may be

required.

Poor fuel quality can cause inefficient engine

operation and poor driveability, which may

go away once the engine is warmed up.

If this occurs, change the fuel brand. It may

require at least one full tank of the proper

fuel to turn the light off. See Fuel for Diesel

Engines 023.

If the light remains on, see your dealer.

Emissions Inspection and Maintenance

Programs

If the vehicle requires an Emissions

Inspection/Maintenance test, the test

equipment will likely connect to the

vehicle's Data Link Connector (DLC).

The DLC is under the instrument panel to

the left of the steering wheel. Connecting

devices that are not used to perform an

Emissions Inspection/Maintenance test or to

service the vehicle may affect vehicle

operation. See “Add-On Electrical Equipment”

in the owner’s manual. See your dealer if

assistance is needed.

The vehicle may not pass inspection if:

.The light is on when the engine is

running.

.The light does not come on when the

ignition is on with the engine not

running.

.Critical emission control systems have not

been completely diagnosed. If this

happens, the vehicle would not be ready

for inspection and might require

several days of routine driving before the

system is ready for inspection. This can

happen if the 12-volt battery has recently

been replaced or run down, or if the

vehicle has recently been serviced.

See your dealer if the vehicle will not pass

or cannot be made ready for the test.

Wait-to-Start Light

This light comes on briefly while starting

the engine, as a check to show the light is

working.

If the wait-to-start light comes on, the glow

plug system is required and operating. Wait

until the light turns off before starting the

engine. This light may not come on in warm

temperatures.

The fast warm-up glow plug system makes

the wait-to-start light stay on for a shorter

amount of time than most diesel engines.

See Starting the Diesel Engine 010.

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

8 Instruments and Controls

Diesel Exhaust Fluid (DEF)

Warning Light

This light, a Driver Information Center (DIC)

message, and a chime come on when there

is an issue with the Diesel Exhaust Fluid

system.

If the DEF issue has not been corrected, the

light will continue to flash when the vehicle

is started. The vehicle's speed may also be

limited.

See Diesel Exhaust Fluid 019.

Power Take-Off Light

Chassis Cab

The vehicle may have a Power Take-Off

(PTO) light. Under normal operating

conditions, the PTO light will remain on

throughout the PTO operating cycle. If all

conditions required to engage PTO have not

been met when enabling PTO, the PTO light

will turn on, then turn off after one second.

See Power Take-Off (PTO) 030.

Information Displays

Driver Information Center (DIC)

The DIC is in the instrument cluster. The DIC

comes on when the ignition is on.

A Duramax diesel vehicle may have the

following additional DIC menu items:

DEF : Displays the Diesel Exhaust Fluid (DEF)

level as a bar graph with individual

segments that illuminate from Empty (E) to

Full (F). When LOW appears on the display

and the segments turn red, add DEF as soon

as possible. For a guide on how much DEF

to add, see Diesel Exhaust Fluid 019.

Fuel Filter Life Remaining : This display

shows an estimate of the fuel filter's

remaining useful life. If 90% Fuel Filter Life

Remaining is displayed, it means 90% of the

current fuel filter life remains. The fuel filter

life system will alert when to change the

fuel filter on a schedule consistent with your

driving conditions.

When the remaining fuel filter life is low,

the CHANGE FUEL FILTER message will

appear on the display. Change the fuel filter

as soon as possible.

Fuel Filter Life Reset : Reset the Fuel Filter

Life Remaining display after each fuel filter

change. It will not reset itself. Also, be

careful not to reset the display at any time

other than when the fuel filter has just been

changed because it cannot be reset

accurately until the next fuel filter change.

The fuel filter life will change to 100% when

the system has been reset. To reset the

system, press and hold the thumbwheel for

two seconds while Fuel Filter Life Remaining

is displayed on the DIC.

Chevrolet/GMC 6.6L Duramax Diesel Engine Supplement (GMNA-Localizing-

U.S./Canada-16504481) - 2023 - CRC - 9/26/22

Instruments and Controls 9

Engine Air Filter Life : Displays an estimate

of the engine air filter’s remaining useful life

and the state of the system. Engine Air

Filter Life 95% means 95% of the current air

filter life remains. Messages will display

based on the engine air filter life and the

state of the system. When the REPLACE AT

NEXT OIL CHANGE message displays, the

engine air filter should be replaced at the

time of the next oil change. When the

REPLACE SOON message displays, the engine

air filter should be replaced at the earliest

convenience. The Air Filter Life display must

be reset after the engine air filter

replacement. To reset, see Engine Air Filter

Life System 049.

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