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19_CHEV_Low_Cab_Forward_6.0L_Gasoline_Engine_3500_4500_Series_Medium_Duty_6.0L_GAS_Engine_COV_en_US_84445127A_2018NOV27.ai 1 11/27/2018 9:42:08 AM19_CHEV_Low_Cab_Forward_6.0L_Gasoline_Engine_3500_4500_Series_Medium_Duty_6.0L_GAS_Engine_COV_en_US_84445127A_2018NOV27.ai 1 11/27/2018 9:42:08 AM
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Keys, Doors, and Windows . . . . . 23
Seats and Restraints . . . . . . . . . . . 36
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 52
Instruments and Controls . . . . . . . 62
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 80
Infotainment System . . . . . . . . . . . . 85
Climate Controls . . . . . . . . . . . . . . 121
Driving and Operating . . . . . . . . . 128
Vehicle Care . . . . . . . . . . . . . . . . . . 186
Service and Maintenance . . . . . 269
Technical Data . . . . . . . . . . . . . . . . 292
Customer Information . . . . . . . . . 304
Reporting Safety Defects . . . . . . 311
Index . . . . . . . . . . . . . . . . . . . . 313
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
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,
and the CHEVROLET Emblem are
trademarks and/or service marks of
General Motors LLC, its
subsidiaries, affiliates, or licensors.
This manual has been prepared to
acquaint you with the operation and
maintenance of your vehicle, and to
provide important safety information.
It includes a Maintenance Schedule
and is supplemented with a
Warranty and Owner Assistance
Information booklet. We urge you to
read these publications carefully.
The following recommendations will
help ensure the most enjoyable,
safe, and trouble-free operation of
your vehicle. When it comes to
service, keep in mind that your
commercial truck dealer knows your
vehicle best and is interested in
your complete satisfaction. Your
dealer invites you to return for all of
your service needs both during and
after the warranty period.
Remember, if you have a concern
that has not been handled to your
satisfaction, follow the steps in the
separate Warranty and Owner
Assistance Information booklet. We
thank you for choosing our product,
and want to assure you of our
continuing interest in your motoring
pleasure and satisfaction.
Model Reference
The models covered in this
manual are:
Single Cab:
.
3500
.
4500
Crew Cab:
.
3500
.
4500
Litho in U.S.A.
Part No. 84445127 A First Printing
©
2018 General Motors LLC. All Rights Reserved.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
Introduction 3
Using this Manual
To quickly locate information about
the vehicle, use the Index in the
back of the manual. It is an
alphabetical list of what is in the
manual and the page number where
it can be found.
Danger, Warning, and
Caution
Warning messages found on vehicle
labels and in this manual describe
hazards and what to do to avoid or
reduce them.
{
Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{
Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means “Do
Not,” “Do not do this,” or “Do not let
this happen.”
Warning/Caution Labels in
Your Vehicle
The warning/caution labels in your
vehicle indicate very important
instructions and information that you
should respect to ensure safe and
proper use of the vehicle. Be sure to
read them before using the vehicle.
If any of these labels are peeling or
illegible due to wear or scratches,
please contact your dealer for a
replacement.
Some examples of warning/caution
labels are indicated on the following
pages, but there are many others
not shown. Also, the contents of
these labels may vary from model to
model.
The warning/caution labels shown
may be located differently in your
vehicle.
Warning/Caution Labels
Single cab model
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
4 Introduction
No. Description
1 Cab tilt instruction
2
Automatic transmission fluid
level
3
Vehicle certification and
Greenhouse Gas (GHG)
emissions
4 NO STEP instruction
5 Towing
6
Vehicle noise emission
control information
7 Engine cooling
8 Fan blade
9
Vehicle emission control
information
Crew cab model
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
Introduction 5
No. Description
1
Vehicle emission control
information
2
Vehicle certification and
Greenhouse Gas (GHG)
emissions
3 Engine coolant check
4 Engine coolant level
5 NO STEP instruction
6 Power steering fluid
7
Vehicle noise emission
control information
8 Engine cooling
9 Fan blade
10 Towing
11
Automatic transmission fluid
level
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
6 Introduction
No. Description
1 Safety lock pin (Single cab)
2
Engine cover notice
(Crew cab)
3 Radiator cap
4
Engine emission control
information
5 Engine coolant (Single cab)
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
In Brief 7
In Brief
Instrument Panel
Instrument Panel . . . . . . . . . . . . . . . . 8
Instrument Panel
(Driver Side) . . . . . . . . . . . . . . . . . . 10
Instrument Panel (Vehicle
Interior) . . . . . . . . . . . . . . . . . . . . . . . 11
Initial Drive Information
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . 12
Getting In and Out of the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 12
Door Locks . . . . . . . . . . . . . . . . . . . . 12
Windows . . . . . . . . . . . . . . . . . . . . . . . 13
Seat Adjustment . . . . . . . . . . . . . . . 14
Seat Belts . . . . . . . . . . . . . . . . . . . . . 16
Mirror Adjustment . . . . . . . . . . . . . . 16
Steering Wheel Adjustment . . . . 16
Interior Lighting . . . . . . . . . . . . . . . . 17
Exterior Lighting . . . . . . . . . . . . . . . 18
Windshield Wiper/Washer . . . . . . 18
Climate Controls . . . . . . . . . . . . . . . 19
Vehicle Features
Radio(s) . . . . . . . . . . . . . . . . . . . . . . . 19
Portable Audio Devices . . . . . . . . 20
Cruise Control . . . . . . . . . . . . . . . . . 20
Power Outlets . . . . . . . . . . . . . . . . . 21
Performance and Maintenance
Driving for Better Fuel
Economy . . . . . . . . . . . . . . . . . . . . . 21
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
8 In Brief
Instrument Panel
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
In Brief 9
1. Air Flow Direction Control
Lever. See Air Vents 0 124.
2. Exterior Lamp Controls 0 80.
Cruise Control Set Switch. See
Cruise Control 0 179.
3. Windshield Wiper and
Windshield Washer Switch.
See Windshield Wiper/Washer
0 63.
4. Heater and Manual Air
Conditioner. See Climate
Control Systems 0 121.
5. Radio with CD/USB/Bluetooth.
See AM-FM Radio 0 85 and
Bluetooth Audio 0 108.
6. Small Article Storage Pockets.
See Instrument Panel Storage
0 52.
7. Windshield Washer Fluid Tank.
See Washer Fluid 0 207.
8. Glove Box 0 53.
9. Relay Box. See Electrical
System Overload 0 229.
10. Cupholders 0 54.
11. Hook. See Shopping Bag
Hooks 0 55.
12. Card Holder. See Instrument
Panel Storage 0 52.
13. Accessory Power Outlet. See
Power Outlets 0 65.
14. Accessory Power Outlet. See
Power Outlets 0 65.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
10 In Brief
Instrument Panel (Driver Side)
1. Instrument Panel Light Level
Control. See Instrument Panel
Illumination Control 0 83.
2. Rear Body Interior Light
Switch. See Cargo Lamp 0 84.
3. Instruments, Warning Lights
and Indicator Lights. See
Instrument Cluster 0 68.
4. Horn Button. See Horn 0 63.
5. Rear Power Window Lock
Switch. See Power Windows
0 33.
6. Outside Rearview Mirror
Heater Switch. See Heated
Mirrors 0 32.
7. Cruise Control Main Switch.
See Cruise Control 0 179.
8. Hazard Warning Flasher
Switch. See Hazard Warning
Flashers 0 82.
9. Rear Power Window Switch.
See Power Windows 0 33.
10. Odometer Check Switch. See
Odometer 0 69.
11. Door Lock Switch. See Power
Door Locks 0 31.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
In Brief 11
Instrument Panel (Vehicle Interior)
1. Overhead Tray. See Storage
Compartments 0 52.
2. Sun Visor. See Sun Visors
0 35.
3. Dome Lamps 0 84.
4. Seat Belt. See Three-Point
Seat Belt 0 43.
5. Seat Back Pocket (Driver’s
Side). See Storage
Compartments 0 52.
6. Seat. See Seat Position 0 36.
7. Cupholders 0 54.
8. Parking Brake Lever. See
Parking Brake 0 176.
9. Selector Lever 0 172.
10. Fully Adjustable Steering. See
Steering Wheel Adjustment
0 62.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
12 In Brief
Initial Drive
Information
Remote Keyless Entry
(RKE) System
Unlocking and Locking the
Doors
Unlocking
Press the unlock button (2) of the
remote control unit for 1 second or
longer. The vehicle's keyless entry
system causes the right and left turn
signal lights to simultaneously flash
twice upon receiving the signals
from the remote control unit.
Locking
Press the lock button (1) of the
remote control unit for 1 second or
longer. The vehicle's keyless entry
system causes the right and left turn
signal lights to simultaneously flash
once upon receiving the signals
from the remote control unit.
See Remote Keyless Entry (RKE)
System Operation 0 24.
Getting In and Out of the
Vehicle
Carefully check that the area around
the vehicle is safe, hold the grip,
and place your foot on the step
when getting in or out of the vehicle.
See Getting In and Out of the
Vehicle 0 27.
Door Locks
Locking and Unlocking the Door
from Outside Using the Key
Turn the key toward the front of the
vehicle to lock the door and turn it
toward the rear of the vehicle to
unlock it. The doors can be opened
by pulling the outside door handle.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
In Brief 13
Locking the Door from Outside
without Using the Key
First, push the lock button (1) on the
inside door handle forward and then
close the door while keeping the
outside door handle (2) raised.
Before closing the door, be sure to
check that you have the key
with you.
Locking and Unlocking the Door
from Inside
Push the lock button (1) forward to
lock the door; pull the lock button
backward to unlock it. After
unlocking the door, open it by
pulling the inside door handle (2).
If the door is locked, the lock
mechanism overrides operation of
the door handle.
Windows
Window Switches on
Driver’s Door
The power window switch on the
driver ’s door can operate both
driver ’s (2) and passenger’s (1)
power windows.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
14 In Brief
To Open the Driver’s Window
Lightly pressing the driver-side
window switch will lower the driver’s
window until the switch is released
(manual mode operation). When the
switch is firmly pressed, the window
will lower completely without the
need to press the switch
continuously (automatic mode
operation). If you want to stop the
automatic movement of the window
before it lowers completely, raise the
switch lightly.
To Close the Driver’s Window
Lightly raising the driver-side
window switch will cause the
driver's window to move up until the
switch is released.
To Open the Passenger’s Window
The passenger's window continues
to lower while the passenger-side
switch on the driver's door is being
pressed.
To Close the Passenger’s Window
The passenger's window continues
to move up while the
passenger-side switch on the
driver's door is being raised.
Window Switches on
Passenger’s Door
The power window switch on the
passenger's door can raise and
lower the passenger's side window
only and rear doors, if equipped.
The window continues to lower
while the window switch is being
pressed and continues to rise while
the switch is being raised. It will
stop moving at any position when
the switch is released.
Seat Adjustment
Driver’s Seat
Forward/backward Adjustment
While raising the unlock lever, move
the seat forward or backward.
Release the lever when the seat is
in the desired position. After making
adjustments, try to move the seat
back and forth to check that it is
fully locked.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
In Brief 15
Reclining Adjustment
To recline the seatback, raise the
seatback tilt lever and gently lean
back to the desired position.
To move the seatback forward, lean
forward with your back slightly clear
of the seatback and raise the lever.
After making adjustments, check
that the seatback is fully locked.
See Seat Position 0 36.
Passenger’s Seat/Center Seat
Passenger’s Seat
Center Seat
You can tip the seatback forward if
you pull forward the lever at the side
of the seatback. Normally, you
should keep the seatback in the
raised position.
See Seat Position 0 36.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
16 In Brief
Seat Belts
Refer to the following sections for
important information on how to use
seat belts properly:
.
Seat Belts 0 41
.
Three-Point Seat Belt 0 43
.
Child Restraint Systems 0 49
Mirror Adjustment
Sit in the correct driving position
with the seat adjusted properly.
Then, check each mirror to ensure
that a proper view of the rear and
sides of the vehicle are provided.
Make adjustments and clean mirrors
if necessary.
Outside Rearview Mirrors
After properly adjusting your seat for
proper driving position, adjust the
mirrors so that they provide
adequate views for checking the
rear and the sides of the vehicle.
Adjust the outside rearview mirrors
by hand before vehicle operation.
This helps you determine the
location of objects seen in the
mirror. If the outside mirror fogs up,
warm up the outside rearview
mirror's face to defog.
See Mirrors 0 31.
Steering Wheel
Adjustment
{
Warning
.
Adjust the position of the
steering wheel before you
start driving.
.
To reduce the risk of
personal injury, apply force
to the steering wheel to
make certain the steering
column is firmly locked
before driving. Also, do not
try to tilt or adjust the
steering wheel while the
vehicle is moving. If these
steps are not followed, the
steering column could move
suddenly while the vehicle
is in motion which could
cause a temporary loss of
steering control which may
result in personal injury or
death.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
In Brief 17
The steering wheel is adjustable up
and down as well as forward and
backward.
Before adjusting, position the seat
as desired.
1. Lift the lock lever toward you to
unlock the steering column.
2. Sit in the correct driving
position, and then move the
steering wheel up and down
and forward and backward to
select the optimum steering
wheel position.
3. Firmly lock the steering wheel
at the selected position by
moving the lock lever to the
lock position.
Interior Lighting
Front Light
The dome light operates regardless
of the engine control switch position.
The switch has three positions.
ON : The light stays on regardless
of the doors being open or closed.
OFF : The light stays off regardless
of the doors being open or closed.
Between ON and OFF, the light
comes on when the driver's door is
opened.
Rear Light (Crew Cab Model Only)
The dome light operates regardless
of the engine control switch position.
The switch has three positions.
ON : The light stays on regardless
of the doors being open or closed.
OFF : The light stays off regardless
of the doors being open or closed.
Between ON and OFF, the light
comes on when the driver's door is
opened.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
18 In Brief
Exterior Lighting
Turning the light control switch to
the following positions will cause the
relevant lights to illuminate.
The light control switch can be used
when the engine control switch is
placed in the LOCK or ACC
position. Do not operate the
combination lights for an extended
time period with the engine off.
Otherwise, the battery may go dead,
making it impossible to restart the
engine.
9 : Turns off all exterior lights.
; : Turns on the parking lights
including all exterior lights, except
the headlights.
2 : Turns on the headlights
together with the parking lights,
sidemarker lights, roofmarker lights,
taillights, license plate light, and
instrument panel lights.
.
Exterior Lamp Controls 0 80.
Windshield Wiper/Washer
To use the windshield wiper and
washer switches, the engine control
switch must be in the ON position.
The windshield wiper switch has the
following positions, which
correspond to the states of the
wiper.
9 : Stopped.
3 : Intermittent, light rain.
Low Speed : Low speed,
moderate rain.
High Speed : High speed,
heavy rain.
Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA-
Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18
In Brief 19
Windshield Washer
Windshield washer fluid is sprayed
over the windshield when this switch
is pressed. At the same time, the
windshield wiper operates.
To spray washer fluid on the
windshield, push the button on the
end of the combination switch lever.
The spray will continue as long as
you hold in the button.
See Windshield Wiper/Washer 0 63.
Climate Controls
The heating, cooling, and ventilation
for the vehicle can be controlled
with this system.
Climate Control System w/Air
Conditioning shown, Heater Only
similar
1. Outlet Selector Knob
2. Air Selector Lever
3. Temperature Control Knob
4. Air Conditioning (A/C) Switch,
if equipped
5. Fan Speed Control Knob
See Climate Control Systems 0 121.
Vehicle Features
Radio(s)
Turning the Power On or Off
Press MODE/
O /ENTER to turn the
power on. Press and hold it for
one second or more to turn the
power off.
If MODE/
O /ENTER is pressed
while listening to music in audio
mode, the power is turned off. When
MODE/
O /ENTER is pressed again,
the audio system resumes the last
mode just before it was turned off.
Adjusting the Volume
Turn the MODE/
O /ENTER knob
clockwise or counterclockwise to
increase or decrease the volume.
Tuning
Manual tuning:
1. Press Tune/Track
y or z for
less than one second.
/
