Gmc Silverado 2018, Sierra 2018 User Manual

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

Contents

Introduction . . . . . . . .. . . . . . . .. . . . . . 2

In Brief . . . . . . . . . . . . . . . . . . ..... . . . . 5

Seats and Restraints . . . . . . . . . . . . 7

Instruments and Controls . . . . . . . . 8

Climate Controls . . . . . . . . . . . . . . . . 12

Driving and Operating . . . . . . . . . . 17

Vehicle Care . . . . . . . . . . . . . . . . . . . . 24

Service and Maintenance . . . . . . . 41

Technical Data . . . . . . . . . . . . . . . . . 43

Index . . . . . . . . . . . . . . . . . . . . . 45

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/19/18

2 Introduction

Introduction

The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this supplement including, but not limited to, GM, the GM logo, CHEVROLET, the CHEVROLET Emblem, GMC, the GMC Truck Emblem, SILVERADO, and SIERRA

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 Chevrolet and GMC 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.

Refer to the purchase documentation relating to your specific vehicle to confirm the features.

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. 84085480 C Third Printing

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

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.

Introduction 3

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

4 Introduction

2 NOTES

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

In Brief

eAssist Features

eAssist Overview

eAssist Features

eAssist Overview . . . . . . . . . . . . . . . . 5

High Voltage Safety

Information . . . . . . . . . . . . . . . . . . . . 5

Automatic Engine Stop/Start

Feature . . . . . . . . .. . . . . . . . . . . . .. . 6

Regenerative Braking . . . . . . . . . . . 6

Battery ... . . . . . . . . . . . . . . . . . . . . . . . 6

Service . . . . . . . . . . . . . . . . . . . . . . . . . 6

If the vehicle has eAssist, there are several additional features that contribute to increased efficiency.

Vehicles with eAssist have an automatic engine start/stop feature. This feature saves fuel by shutting the engine off when the vehicle is stopped. When the engine shuts off automatically, all the accessories will continue to operate normally. In very hot or cold conditions, the engine may not shut off. See Starting the Engine 0 17.

Under certain driving conditions, eAssist improves fuel economy by extending the operation of V4 mode.

There are two air conditioning settings available. The comfort setting maximizes cabin comfort. The eco setting maximizes efficiency allowing more frequent, and longer engine stops than the comfort setting. See Dual Automatic Climate Control System 0 12.

In Brief 5

This vehicle has a Hill Start Assist (HSA) feature, which may be useful when the vehicle is stopped on a grade. See the Owner Manual.

Vehicles with eAssist include an AUTO STOP indicator on the tachometer. See Instrument Cluster 0 9.

The eAssist system uses a high voltage battery, which is cooled with air drawn from the vehicle interior.

The cold air intake for the battery is on the sides of the center console. The exhaust for warm air is at the rear of the console. Do not cover the intake. See Battery - North America 0 31.

High Voltage Safety Information

Vehicles with eAssist have a standard 12-volt battery and a high voltage battery. Only a trained service technician with the proper knowledge and tools should inspect, test, or replace the high voltage battery. See your dealer if the high voltage battery needs service.

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

6 In Brief

In emergency situations, first responders can cut the two clearly labeled cut points in the engine compartment to disable the high voltage battery and airbag systems. Do not cut the high voltage cable.

Automatic Engine Stop/ Start Feature

Vehicles with eAssist have an automatic engine stop/start feature. After the engine is started and has reached operating temperature, the auto stop feature may cause the engine to turn off when the brake pedal is applied and the vehicle comes to a complete stop. When the brake pedal is released, or the accelerator pedal is applied, the engine will restart. The engine will continue to run until the next auto stop.

AUTO STOP on the tachometer signifies that the engine is in auto stop mode. See Tachometer 0 10 for more information. A chime will sound when the driver door is opened while in auto stop mode.

Remember to shift to P (Park) and turn the ignition to LOCK/OFF before exiting the vehicle.

See Starting the Engine 0 17.

Regenerative Braking

Regenerative braking takes some of the energy from the moving vehicle and turns it into electrical energy. This energy is then stored in the vehicle's high voltage battery system, contributing to increased fuel efficiency.

The system works whenever the accelerator pedal is released, and increases the energy captured as more brake pedal is applied.

Regenerative braking is disabled during Tow/Haul Mode.

Battery

This vehicle has a standard 12-volt battery. Refer to the replacement number on the original battery label when a new standard 12-volt battery is needed.

Vehicles with eAssist also have a high voltage battery. Only a trained service technician with the proper knowledge and tools should inspect, test, or replace the high voltage battery. See your dealer if the high voltage battery needs service. See Battery - North America 0 31.

Service

Warning

{

Never try to do your own service on high voltage components. You can be injured and the vehicle can be damaged if you try to do your own service work. Service and repair of these high voltage components should only be performed by a trained service technician with the proper knowledge and tools.

See “Doing Your Own Service Work” under “Vehicle Checks” in the owner’s manual.

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

Seats and Restraints 7

Seats and Restraints

Airbag System

What Will You See after an

Airbag Inflates? . . . . . . . .. . . . . . . . 7

Airbag System

What Will You See after an Airbag Inflates?

Vehicles with eAssist have a high voltage battery and a standard 12-volt battery. If an airbag inflates or the vehicle has been in a crash, the vehicle's sensing system may shut down the high voltage system. When this occurs, the high voltage battery is disconnected and the vehicle is not charging the 12-volt battery or the electrical system. The vehicle may start but it shuts down once the 12-volt battery is depleted. When the 12-volt battery is depleted, the vehicle will not start and the on-board jump start feature is disabled. The airbag readiness light and/or the 12-volt battery warning light are displayed. Before the vehicle can be operated again, it must be serviced at your dealer.

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

8 Instruments and Controls

Instruments and Controls

Warning Lights, Gauges, and Indicators

Instrument Cluster . . . . . . . . . . . . . . 9

Tachometer . . . . . . . . . . . . . . . . . . . . 10

Information Displays

Power Flows . . . . . . . ... . . . . . . . . . 10

Energy Information . . . . . . . ... . . . 11

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

Warning Lights, Gauges, and Indicators

Instrument Cluster

English eAssist Shown, Metric Similar

Instruments and Controls 9

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

10 Instruments and Controls

Cluster Menu

The eAssist vehicles have an additional item in the Options menu.

Options

V to select the Options app.

Press

w or x to scroll through items

Use in the Options menu.

Jump Start : The Jump Start display is used to perform an on-board jump start for eAssist vehicles. See “Jump Starting — North America (On-board with eAssist Only)” later in this manual.

Tachometer

The tachometer displays the engine speed in revolutions per minute (rpm).

For eAssist vehicles, when the ignition is on, the tachometer indicates the vehicle status. When pointing to AUTO STOP, the engine is off but the vehicle is on and can move. The engine could auto start at any time. When the indicator points to OFF, the vehicle is off.

When the engine is on, the tachometer will indicate the engine’s revolutions per minute (rpm). The tachometer may vary by several hundred rpm’s, during Auto Stop mode, when the engine is shutting off and restarting.

A slight bump may be felt when the transmission is determining the most fuel efficient operating range.

Caution

If the engine is operated with the rpm’s in the warning area at the high end of the tachometer, the vehicle could be damaged, and the damage would not be covered by the vehicle warranty. Do not operate the engine with the rpm’s in the warning area.

Information Displays

Power Flows

To view the Power Flow screens in the infotainment display, touch

on the Home Page. Then touch POWERFLOW at the bottom of the display.

The Power Flow screens indicate the current operating condition. The screens show energy flow between the engine, generator, and high voltage battery. These components will be highlighted when they are active.

[

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

Energy Information

To view the Consumption History screen on the infotainment display,

touch

[ on the Home Page. Then

touch INFO at the bottom of the display.

The consumption history graph shows the average fuel economy over the last 50 km or 50 mi.

Touch Reset to clear the history data.

The Present bar provides the average fuel economy for the present 5 km or mi.

Instruments and Controls 11

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

12 Climate Controls

Climate Controls

Climate Control Systems

Dual Automatic Climate Control System

Climate Control Systems

Dual Automatic Climate Control

System . . . . . . . . .. . . . . . . . . . . . . . 12

With this system the heating, cooling, and ventilation in the vehicle can be controlled.

1. Driver Temperature Control

2. A/C (Comfort and Eco Air Conditioning)

3. Air Delivery Mode Controls

4. Fan Control

5. Defrost

6. Passenger Temperature Control

7. SYNC (Synchronized Temperature)

8. Rear Window Defogger

9. Power Button

10. Air Recirculation

11. AUTO (Automatic Operation)

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

Climate Control Influence on eAssist Operation and Fuel Economy (If Equipped)

The climate control system depends on other vehicle systems for heat and power input. Certain climate control settings can lead to higher fuel usage and/or fewer auto stops.

The following climate control settings use more fuel:

Comfort air conditioning mode.

Defrost mode.

Extreme temperature settings, such as 15° C (60° F) or 32° C (90° F).

High fan speed settings.

To help reduce fuel usage:

Use the full automatic control as described under “Automatic Operation.”

Select a temperature setting that is higher in hot weather and lower in cold weather.

Turn off the air conditioning when it is not needed.

Only use defrost to clear the windows.

Automatic Operation

The system automatically controls the fan speed, air delivery, air conditioning, and recirculation in order to heat or cool the vehicle to the desired temperature.

When AUTO is lit, all four functions operate automatically. Each function can also be manually set and the selected setting is displayed. Functions not manually set will continue to be automatically controlled, even if the AUTO indicator is not lit.

For automatic operation:

1. Press AUTO.

2. Set the driver and passenger temperature.

To find your comfort setting, start with 22° C (72° F) and allow the system time to stabilize. Then adjust the temperature as needed for best comfort.

Climate Controls 13

To improve fuel efficiency and to cool the vehicle faster, recirculation may be automatically selected in warm weather.

The recirculation light will not come on when automatically controlled.

@ to manually select

Press recirculation; press it again to select outside air.

Do not cover the solar sensor on the top of the instrument panel near the windshield. This sensor regulates air temperature based on sun load. See “Sensors” later in this section.

Manual Operation

O (On/Off) : Press to turn the

climate control system on or off. When off is selected, the system will stop air from flowing into the cabin. If on is selected, any other button press occurs, or a knob is turned, the climate control system will turn on and operate to the current setting.

Chevrolet/GMC Silverado/Sierra eAssist Supplement (GMNA-Localizing-U.S./ Canada/Mexico-11354401) - 2018 - CRC - 3/9/18

14 Climate Controls

9 (Fan Control) : Turn clockwise

or counterclockwise to increase or decrease the fan speed. Press the knob to turn the fan off.

Press AUTO to return to automatic operation.

Driver and Passenger Temperature Control : The

temperature can be adjusted separately for the driver and passenger.

Turn the knob clockwise or counterclockwise to increase or decrease the driver or passenger temperature setting.

SYNC (Synchronized Temperature) : Press to link the

passenger temperature setting to the driver setting. The SYNC indicator light will turn on. When the passenger setting is adjusted, the SYNC indicator light is off.

The driver side or passenger side temperature display shows the temperature setting increasing or decreasing.

Air Delivery Mode Control :

Press

Y, \, [ , or - to change

the direction of the airflow. An indicator light comes on in the selected mode button.

Changing the mode cancels the automatic operation and the system goes into manual mode. Press AUTO to return to automatic operation.

Y (Vent) : Air is directed to the

instrument panel outlets.

\ (Bi-Level) : Air is divided

between the instrument panel and floor outlets. Some air is directed toward the windshield and side window outlets.

[ (Floor) : Air is directed to the

floor outlets, with some to the windshield, side window outlets, and second row floor outlets.

- (Defog) : This mode clears the

windows of fog or moisture. Air is directed to the windshield, floor outlets, and side window vents. The system automatically forces outside air into the vehicle and the air

conditioning compressor will run, unless the outside temperature is close to freezing.

0 (Defrost) : Press to clear the

windshield of fog or frost more quickly. Air is directed to the windshield and the side window vents. The air conditioning compressor also comes on, unless the outside temperature is below freezing.

For best results, clear all snow and ice from the windshield before defrosting.

For eAssist vehicles that have the auto defog feature, auto stops can occur in defrost mode. In this mode, the auto stops are shorter and less frequent than other air delivery modes to prevent window fogging.

A/C (Comfort Air Conditioning) :

Press to turn the air conditioning system on or off. An indicator light will be lit amber to show that the air conditioning is enabled. If the fan is turned off, the air conditioner will not

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