Chevrolet Low Cab Forward 2019 Owner's Manual

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

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

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.

Introduction 3

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

Automatic transmission fluid

level

Vehicle certification and

Greenhouse Gas (GHG) emissions

4 NO STEP instruction

5 Towing

Vehicle noise emission

control information

7 Engine cooling

8 Fan blade

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

No. Description

Vehicle emission control

information

Vehicle certification and

Greenhouse Gas (GHG) emissions

3 Engine coolant check

4 Engine coolant level

5 NO STEP instruction

6 Power steering fluid

Vehicle noise emission

control information

8 Engine cooling

9 Fan blade

10 Towing

Automatic transmission fluid

level

Introduction 5

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)

Engine cover notice

(Crew cab)

3 Radiator cap

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

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

In Brief 7

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

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.

In Brief 9

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)

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.

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.

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

Instrument Panel (Vehicle Interior)

In Brief 11

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.

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.

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

Locking the Door from Outside without Using the Key

Locking and Unlocking the Door from Inside

In Brief 13

Windows

Window Switches on Driver’s Door

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.

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.

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

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

In Brief 15

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

3. Firmly lock the steering wheel at the selected position by moving the lock lever to the lock position.

Interior Lighting

Front Light

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.

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.

In Brief 17

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

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.

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

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

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.

In Brief 19

Vehicle Features

Radio(s)

Turning the Power On or Off

Press MODE/ power on. Press and hold it for one second or more to turn the power off.

If MODE/ while listening to music in audio mode, the power is turned off. When

MODE/ the audio system resumes the last mode just before it was turned off.

Adjusting the Volume

Turn the MODE/ clockwise or counterclockwise to increase or decrease the volume.

Tuning

Manual tuning:

1. Press Tune/Track less than one second.

O /ENTER to turn the

O /ENTER is pressed

O /ENTER is pressed again,

O /ENTER knob

y or z for

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

20 In Brief

2. Press Tune/Track y or z for

less than one second again to select the station of your choice.

Settings

Adjustment of bass, treble, fader, and balance, and setting of clock display and time can be performed. See “Function Setting Mode” in AM-FM Radio 0 85.

CD Player

To play a CD, see CD Player 0 90.

Portable Audio Devices

This vehicle is equipped with a

3.5 mm (1/8 in) auxiliary input jack and a USB port in the radio faceplate. External devices such as iPods, laptop computers, MP3 players, and USB storage devices may be connected.

See USB Port 0 98 and Auxiliary Devices 0 107.

Cruise Control

1. Press the cruise control main switch to turn it on.

At this time, the cruise main indicator light comes on simultaneously.

2. Use the accelerator pedal to adjust the vehicle to the desired speed. Upon reaching the desired speed, turn the cruise control set switch. The vehicle speed at the moment you operate the switch is set in the system, enabling you to drive with the set speed automatically maintained without using the accelerator pedal.

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

instructions that are included with any electrical equipment you install. These circuits are protected by a fuse and have maximum current loads.

At the same time the cruise set indicator light comes on.

See Cruise Control 0 179.

See Power Outlets 0 65.

Power Outlets

You can plug in auxiliary electrical equipment. Just flip the outlet cover open from the left edge of the cover and follow the proper installation

In Brief 21

Performance and Maintenance

Driving for Better Fuel Economy

Economical Driving

How you drive, where you drive and when you drive all affect fuel economy.

Drive at a constant speed as much as possible. When accelerating, increase your speed gently and slowly, and up-shift early.

Maintain a constant cruising speed, as traffic allows, and avoid sudden stops.

Frequent short trips, excessive idling and use of the air conditioner in cool weather when "Vent" would provide adequate comfort, can all lead to decreased fuel economy.

Warming up the engine for longer than necessary, driving with the vehicle overloaded and revving the engine are a waste of fuel.

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

22 In Brief

The careful attention you give your vehicle, as far as maintenance is concerned, will also help fuel economy.

Protection of Engine against Overcooling

Overcooling of the engine not only accelerates wear of the vital engine parts but also hurts fuel economy.

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

Keys, Doors, and Windows

Keys and Locks

Keys

Keys and Locks

Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Remote Keyless Entry (RKE)

System . . . . . . . . . . . . . . . . . . . . . . . 24

Remote Keyless Entry (RKE)

System Operation . . . . . . . . . . . . 24

Getting In and Out of the

Vehicle . . . . . . . . . . . . . . . . . . . . . . . 27

Door Locks . . . . . . . . . . . . . . . . . . . . 28

Power Door Locks . . . . . . . . . . . . . 31

Vehicle Security

Vehicle Security . . . . . . . . . . . . . . . . 31

Exterior Mirrors

Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 31

Heated Mirrors . . . . . . . . . . . . . . . . . 32

Windows

Power Windows . . . . . . . . . . . . . . . 33

Sun Visors . . . . . . . . . . . . . . . . . . . . . 35

1. Main Key

2. Spare Key

3. Metal plate with key code

One key (1) can operate all the locks on the vehicle. Keep one of the two keys provided as a spare (2). Record the key code numbers.

Keys, Doors, and Windows 23

Both sides of the key are identical, so you can insert the key in the engine control switch without worrying about which way you insert it.

The key code is indicated on a separate metal plate (3) in order to prevent it from being acquired by an unauthorized person.

Where is the Key Used?

Where For What

Engine Control Switch

Front doors Locking and

Wipe off the key to remove any dirt or dust, etc. before using it.

To prevent theft, store the metal plate with key code in a safe place other than the vehicle.

Should you lose the key, please give the key number to the nearest dealer. The dealer will be able to duplicate your key.

Starting and shutting down the engine

unlocking the doors.

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

24 Keys, Doors, and Windows

If you resell the vehicle, be sure to hand over the plate with key code to the new owner together with the vehicle.

Remote Keyless Entry (RKE) System

See Radio Frequency Statement 0 311.

If there is a decrease in the Remote Keyless Entry (RKE) operating range:

Check the distance. The transmitter may be too far from the vehicle.

Check the location. Other vehicles or objects may be blocking the signal.

Check the transmitter's battery. See “Replacing the Battery in the Remote Control Unit” later in this section.

If the transmitter is still not working correctly, see your dealer or a qualified technician for service.

Remote Keyless Entry (RKE) System Operation

The keyless entry system allows you to lock/unlock the doors by simply pressing the remote control button rather than inserting the key into the lock.

The remote control unit works within a 10 m (33 ft) radius of the cab center as indicated in the figure. The actual distance over which the unit operates may vary depending on conditions.

Unlocking and Locking the Doors

Remote Control Unit

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

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

system causes the right and left turn signal lights to simultaneously flash once upon receiving the signals from the remote control unit.

Should you lose the remote control unit, please contact your dealer.

After locking the doors using the remote control unit, be sure to check that they are locked by pulling the door handles.

Avoid getting water on the remote control unit, dropping it, hitting it against another object, or stepping on it; otherwise, the remote control unit could malfunction.

Do not leave the remote control unit on the dashboard or any other surface where the unit might be exposed to high temperatures (exceeding 60°C/140°F). Doing so may result in shorter battery life or malfunction of the remote control unit.

If the keyless entry system fails to operate normally, lock and unlock the doors using the key and have the system inspected by your dealer.

The lock or unlock buttons on the remote control unit must be fully pressed for more than 1 second to work.

If you do not open any doors within about 30 seconds after pressing the unlock button to unlock the doors, the automatic locking function of the system will lock the doors again to prevent theft.

In areas near a TV tower, electric power plant, radio station, etc. or under any conditions involving strong electrical disturbances, the remote control unit operating range might change or the keyless entry system might not work.

The keyless entry system does not operate in the following cases:

The engine control switch is in the "ON" position.

The key is inserted in the engine control switch.

One of the doors is open.

Keys, Doors, and Windows 25

Replacing the Battery in the Remote Control Unit

When the battery runs down, replace it. Battery life is approximately two years.

Battery Used

Lithium battery 1

Model number: CR 2032

Voltage: DC3V

1. Battery Cover

Number of

Battery

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

26 Keys, Doors, and Windows

2. Remote Control Cover Notch

3. Remote Control Unit Cover

4. Remote Control Unit

5. Battery

2. Remove the battery cover (1).

1. Pry open the remote control unit cover (3) by inserting a flat head screwdriver or similar tool into the notch of the remote control unit cover (2). Wrap a piece of cloth or tape around the tip of the screwdriver so as not to damage the remote control unit cover (3).

3. Insert a flat head screwdriver or similar tool into the recess of the remote control unit (4) to remove the old battery.

4. Insert the new battery into the remote control unit (4) with its positive side visible, and press the battery downward until fully seated.

5. Install the remote control unit (4), battery (5), and battery cover (1) in their original positions inside the remote control unit cover (3).

6. Close the remote control unit cover (3).

When closing the remote control unit cover (3), check that there is no dust, hair, or anything else caught underneath it. A poorly sealed remote control unit could become deteriorated.

Please comply with the collection system available in your country for the disposal of old batteries. In addition, take special care to prevent any danger to children.

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

Keys, Doors, and Windows 27

Warning

{

When changing the battery, use only a battery of the same type as the original battery, or an equivalent. Otherwise, there is a risk of explosion.

Do not place the battery in direct sunlight, or near a fire or other sources of heat.

Be sure to install the battery with the "+" and "-" sides correctly oriented. Incorrect installation will result in leakage of chemicals from inside the battery or other operational problems.

You and others could be seriously injured.

The battery life varies depending on how the remote control unit is used.

The battery has reached its end of life when the remote control unit works intermittently or does not work at all. Replace the battery as soon as this happens.

Getting In and Out of the Vehicle

Carefully check that the area around the vehicle is safe, hold the grip (1), and place your foot on the step (2) when getting in or out of the vehicle.

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When getting in or out of the vehicle, make sure you use the step and grips to support yourself

Warning

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Warning (Continued)

at 3 points. It is very dangerous to stand on the tire or wheel when getting in or out of the vehicle.

Furthermore, do not try to jump in or out of the vehicle, as doing so could cause unexpected accidents or injuries.

Getting in or out of the vehicle with oily or greasy hands or shoes could cause you to slip. Always thoroughly clean grease, etc. from your hands and shoes before getting in or out of the vehicle.

Rain and snow can cause the step to become very slippery. Therefore, always remove snow and ice from your shoes and the step, and be careful not to slip when getting in and out of the vehicle.

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Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

28 Keys, Doors, and Windows

Warning (Continued)

Exercise caution when opening or closing doors, as strong winds or steep slopes may cause doors to open or close suddenly.

Do not hold parts other than the grip when getting in or out of the vehicle. Doing so may cause damage to the vehicle or injuries to yourself or others.

You and others could be seriously injured.

Door Locks

Warning

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Be sure to do the following whenever you leave the vehicle:

1. Fully engage the parking brake.

2. Stop the engine.

3. Lock the doors.

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Warning (Continued)

When you close the door after sitting behind the wheel, check that the door is fully closed. Driving with any door ajar is very dangerous.

Before opening the door when climbing into or out of the cab, carefully check all areas around the vehicle for safety, especially the area at the rear of the vehicle. If you suddenly open a door without checking the surrounding area, the door could be hit by a vehicle behind you or a pedestrian.

Never leave the key in the vehicle.

Tilt the cab only after fully closing the doors.

To help reduce the risk of personal injury in an accident, always lock the doors when driving. Along with using the seat

(Continued)

Warning (Continued)

belts properly, locking the doors helps prevent people from being thrown from the vehicle. It also helps prevent unintended opening of the doors and helps keep out intruders.

You and others could be seriously injured.

Warning

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To protect the child from the danger of getting his/her hands and head trapped, an adult must open, close and lock the door for the child.

Be careful that the child does not interfere with the power window switches and get his/her hands or head trapped in the window. While a child is in the cab, be

(Continued)

Chevrolet Low Cab Forward 6.0L Gasoline Engine 3500/4500 Series (GMNA- Localizing-U.S.-12533400) - 2019 - CRC - 11/19/18

Warning (Continued)

sure to control the power windows using the power window switches beside the driver's seat.

You and others could be seriously injured.

Overriding door locks are a standard safety feature. When the doors are locked, the inside handles will not open them. This is to prevent accidental opening of the doors.

Front Doors

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.

Keys, Doors, and Windows 29

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.

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