ECU CHEVROLET EXPRESS 2018 Service Manual

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Customer Information 323
driver if they decide the claims are
made too often, or the same type of
claim is made many times.
Services Provided
.Emergency Fuel Delivery:
Delivery of enough fuel for the
vehicle to get to the nearest
service station.
. Lock-Out Service: Service to
unlock the vehicle if you are
locked out. A remote unlock may
be available if you have OnStar.
For security reasons, the driver
must present identification
before this service is given.
. Emergency Tow from a Public
Road or Highway: Tow to the
nearest Chevrolet dealer for
warranty service, or if the vehicle
was in a crash and cannot be
driven. Assistance is not given
when the vehicle is stuck in the
sand, mud, or snow.
. Flat Tire Change: Service to
change a flat tire with the spare
tire. The spare tire, if equipped,
must be in good condition and
properly inflated. It is the owner's responsibility for the repair or
replacement of the tire if it is not
covered by the warranty.
. Battery Jump Start: Service to
jump start a dead battery.
. Trip Interruption Benefits and
Assistance: If your trip is
interrupted due to a warranty
event, incidental expenses may
be reimbursed within the
Powertrain warranty period.
Items considered are reasonable
and customary hotel, meals,
rental car, or a vehicle being
delivered back to the customer,
up to 500 miles.
Services Not Included in
Roadside Assistance
. Impound towing caused by
violation of any laws
. Legal fines
. Mounting, dismounting,
or changing of snow tires,
chains, or other traction devices
Service is not provided if a vehicle
is in an area that is not accessible
to the service vehicle or is not a regularly traveled or maintained
public road, which includes ice and
winter roads. Off-road use is not
covered.
Services Specific to
Canadian-Purchased Vehicles
.
Fuel Delivery: Reimbursement
is up to 7 liters. If available,
diesel fuel delivery may be
restricted. Propane and other
fuels are not provided through
this service.
. Lock-Out Service: Vehicle
registration is required.
. Trip Interruption Benefits and
Assistance: Must be over
150 km from where your trip was
started to qualify.
Pre-authorization, original
detailed receipts, and a copy of
the repair orders are required.
Once authorization has been
received, the Roadside
Assistance advisor will help to
make arrangements and explain
how to receive payment.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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332 OnStar
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . . 332
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . . 333
Security . . . . . . . . . . . . . . . . . . . . . . 334
Navigation . . . . . . . . . . . . . . . . . . . . 334
Connections . . . . . . . . . . . . . . . . . . 335
Diagnostics . . . . . . . . . . . . . . . . . . . 337
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . . 338
OnStar Overview
=Voice Command Button
QBlue OnStar Button
>Red Emergency Button
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to an OnStar
Advisor for Emergency, Security,
Navigation, Connections, and
Diagnostics Services. OnStar
services may require a paid service
plan and data plan. OnStar requires
the vehicle battery and electrical
system, cellular service, and GPS
satellite signals to be available and
operating. OnStar acts as a link to
existing emergency service
providers. OnStar may collect
information about you and your
vehicle, including location
information. See OnStar User Terms, Privacy Statement, and
Software Terms for more details
including system limitations at
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
The OnStar system status light is
next to the OnStar buttons. If the
status light is:
.
Solid Green: System is ready.
. Flashing Green: On a call.
. Red: Indicates a problem.
. Off: System is off. Press
Q
twice to speak with an OnStar
Advisor.
Press
Qor call 1-888-4ONSTAR
(1-888-466-7827) to speak to an
Advisor.
Functionality of the Voice Command
button may vary by vehicle and
region.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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334 OnStar
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
Navigation
OnStar navigation requires a
specific OnStar service plan.
Press
Qto receive Turn-by-Turn
directions or have them sent to the
vehicle’s navigation screen,
if equipped.
Turn-by-Turn Navigation
1. PressQto connect to an
Advisor.
2. Request directions to be downloaded to the vehicle.
3. Follow the voice-guided commands.
Using Voice Commands
During a Planned Route
Functionality of the Voice Command
button may vary by vehicle and
region. For some vehicles, press
=
to open the OnStar app on the
infotainment display. For other
vehicles press
=as follows. Cancel Route
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Cancel route.” System
responds: “Do you want to
cancel directions?”
3. Say “Yes.”System responds:
“OK, request completed, thank
you, goodbye.”
Route Preview
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Route preview.” System
responds with the next three
maneuvers.
Repeat
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Repeat.” System
responds with the last direction
given, then responds with
“OnStar ready,” then a tone.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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OnStar 335
Get My Destination1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Get my destination.”
System responds with the
address and distance to the
destination, then responds with
“OnStar ready,” then a tone.
Send Destination to Vehicle
Directions can be sent to the
vehicle’s navigation screen,
if equipped.
Press
Q, then ask the Advisor to
download directions to the vehicle’s
navigation system, if equipped. After
the call ends, the navigation screen
will provide prompts to begin driving
directions. Routes that are sent to
the navigation screen can only be
canceled through the navigation
system.
See www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Connections
The following OnStar services help
with staying connected.
For coverage maps, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Ensuring Security
. Change the default passwords
for the Wi-Fi hotspot and
myChevrolet mobile application.
Make these passwords different
from each other and use a
combination of letters, numbers,
and symbols to increase the
security.
. Change the default name of the
SSID (Service Set Identifier).
This is your network’s name that
is visible to other wireless
devices. Choose a unique name
and avoid family names or
vehicle descriptions.
OnStar Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in
Wi-Fi hotspot that provides access
to the Internet and web content at 4G LTE speed. Up to seven mobile
devices can be connected. A data
plan is required. Use the in-vehicle
controls only when it is safe to
do so.
1. To retrieve Wi-Fi hotspot information, press
=to open
the OnStar app on the
infotainment display, then
select Wi-Fi Hotspot. On some
vehicles, touch Wi-Fi or Wi-Fi
Settings on the screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID),
password, and on some
vehicles, the connection type
(no Internet connection, 3G,
4G, 4G LTE), and signal quality
(poor, good, excellent).
3. To change the SSID or password, press
Qor call
1-888-4ONSTAR to connect
with an Advisor. On some
vehicles, the SSID and
password can be changed in
the Wi-Fi Hotspot menu.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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OnStar 341
equipment may interfere with the
operation of the OnStar system and
cause it to not operate.
Vehicle Software Updates
OnStar or GM may remotely deliver
software updates or changes to the
vehicle without further notice or
consent. These updates or changes
may enhance or maintain safety,
security, or the operation of the
vehicle or the vehicle systems.
Software updates or changes may
affect or erase data or settings that
are stored in the vehicle, such as
OnStar Hands-Free Calling name
tags, saved navigation destinations,
or pre-set radio stations. Neither
OnStar nor GM is responsible for
any affected or erased data or
settings. These updates or changes
may also collect personal
information. Such collection is
described in the OnStar privacy
statement or separately disclosed at
the time of installation. These
updates or changes may also cause
a system to automatically
communicate with GM servers to
collect information about vehiclesystem status, identify whether
updates or changes are available,
or deliver updates or changes. An
active OnStar agreement constitutes
consent to these software updates
or changes and agreement that
either OnStar or GM may remotely
deliver them to the vehicle.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada). We
recommend that you review it. If you
have any questions, call
1-888-4ONSTAR (1-888-466-7827)
or press
Qto speak with an
Advisor. Users of wireless
communications are cautioned that
the privacy of any information sent
via wireless cellular communications
cannot be assured. Third parties
may unlawfully intercept or access
transmissions and private
communications without consent.
OnStar - Software
Acknowledgements
Certain OnStar components include
libcurl and unzip software and other
third party software. Below are the
notices and licenses associated with
libcurl and unzip and for other third
party software please see http://
opensource.lge.com/index
www.onstar.com/us/en/
libcurl:
COPYRIGHT AND PERMISSION
NOTICE
Copyright (c) 1996 - 2010, Daniel
Stenberg, .
All rights reserved.
Permission to use, copy, modify,
and distribute this software for any
purpose with or without fee is
hereby granted, provided that the
above copyright notice and this
permission notice appear in all
copies.
THE SOFTWARE IS PROVIDED
“AS IS,” WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
342 OnStar
IMPLIED, INCLUDING BUT NOT
LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE
AND NONINFRINGEMENT OF
THIRD PARTY RIGHTS. IN NO
EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF
CONTRACT, TORT OR
OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN
THE SOFTWARE.
Except as contained in this notice,
the name of a copyright holder shall
not be used in advertising or
otherwise to promote the sale, use
or other dealings in this Software
without prior written authorization of
the copyright holder.
unzip:
This is version 2005-Feb-10 of the
Info-ZIP copyright and license. The
definitive version of this documentshould be available at ftp://
ftp.info-zip.org/pub/infozip/
license.html indefinitely.
Copyright (c) 1990-2005 Info-ZIP. All
rights reserved.
For the purposes of this copyright
and license,
“Info-ZIP”is defined as
the following set of individuals:
Mark Adler, John Bush, Karl Davis,
Harald Denker, Jean-Michel Dubois,
Jean-loup Gailly, Hunter Goatley, Ed
Gordon, Ian Gorman, Chris
Herborth, Dirk Haase, Greg Hartwig,
Robert Heath, Jonathan Hudson,
Paul Kienitz, David Kirschbaum,
Johnny Lee, Onno van der Linden,
Igor Mandrichenko, Steve P. Miller,
Sergio Monesi, Keith Owens,
George Petrov, Greg Roelofs, Kai
Uwe Rommel, Steve Salisbury,
Dave Smith, Steven M. Schweda,
Christian Spieler, Cosmin Truta,
Antoine Verheijen, Paul von Behren,
Rich Wales, Mike White.
This software is provided “as is,”
without warranty of any kind,
express or implied. In no event shall
Info-ZIP or its contributors be held liable for any direct, indirect,
incidental, special or consequential
damages arising out of the use of or
inability to use this software.
Permission is granted to anyone to
use this software for any purpose,
including commercial applications,
and to alter it and redistribute it
freely, subject to the following
restrictions:
1. Redistributions of source code must retain the above copyright
notice, definition, disclaimer,
and this list of conditions.
2. Redistributions in binary form (compiled executables) must
reproduce the above copyright
notice, definition, disclaimer,
and this list of conditions in
documentation and/or other
materials provided with the
distribution. The sole exception
to this condition is redistribution
of a standard UnZipSFX binary
(including SFXWiz) as part of a
self-extracting archive; that is
permitted without inclusion of
this license, as long as the

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Index 345
Automatic (cont'd)Transmission . . . . . . . . . . . . . . . . . 182
Transmission Fluid . . . . . . 223, 226
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 185
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 241
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 143
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 138
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 239
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 127
Load Management . . . . . . . . . . . . 127
Power Protection . . . . . . . . . . . . . 127
Battery - North America . . . . 238, 286
Blade Replacement, Wiper . . . . . 242
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . . 148
Brake
System Warning Light . . . . . . . . 107
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 236 Antilock . . . . . . . . . . . . . . . . . . . . . . . 186
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 188 Brakes (cont'd)
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Parking . . . . . . . . . . . . . . . . . . . . . . . 187
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 164
Break-In, New Vehicle . . . . . . . . . . 173
Bulb Replacement
Center High-MountedStoplamp (CHMSL) . . . . . . . . . 246
Front Turn Signal,
Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 245
Halogen Bulbs . . . . . . . . . . . . . . . . 244
Headlamp Aiming . . . . . . . . . . . . . 244
Headlamps . . . . . . . . . . . . . . . . . . . 244
License Plate Lamps . . . . . . . . . 247
Taillamps . . . . . . . . . . . . . . . . . . . . . 245
Buying New Tires . . . . . . . . . . . . . . . 271
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 93
California Fuel Requirements . . . . . . . . . . . 198
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 215
California Proposition
65 Warning . . . . . . . . . .214, 238, 286, Back CoverCamera
Rear Vision (RVC) . . . . . . . . . . . . 193
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 315
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 181
Winter Driving . . . . . . . . . . . . . . . . 167
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 88
Cargo Door Relocking . . . . . . . . . . . 30
Caution, Danger, and Warning . . . . 2
CD Player . . . . . . . . . . . . . . . . . . . . . . 138
Center High-Mounted
Stoplamp (CHMSL) . . . . . . . . . . . 246
Chains, Tire . . . . . . . . . . . . . . . . . . . . 276
Charging System Light . . . . . . . . . 104
Check
Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 105
Ignition Transmission Lock . . . 242
Child Restraints Infants and Young Children . . . . . 70
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 75
Older Children . . . . . . . . . . . . . . . . . . 68
Securing . . . . . . . . . . . . . . . . . . . . 82, 84
Systems . . . . . . . . . . . . . . . . . . . . . . . . 72

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Index 349
L
Labeling, Tire Sidewall . . . . . . . . . . 257
LampsDaytime Running (DRL) . . . . . . 123
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 126
Exterior Controls . . . . . . . . . . . . . . 122
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 123
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 127
License Plate . . . . . . . . . . . . . . . . . 247
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 105
Reading . . . . . . . . . . . . . . . . . . . . . . 126
Taillamps . . . . . . . . . . . . . . . . . . . . . 245
Lamps, Bulb Replacement . . . . . . 245
Lap-Shoulder Belt . . . . . . . . . . . . . . . 49
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . 81
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 75
Lighter, Cigarette . . . . . . . . . . . . . . . . 96
Lighting Entry/Exit . . . . . . . . . . . . . . . . . . . . . 127
Illumination Control . . . . . . . . . . . 126
Lights Airbag On-Off . . . . . . . . . . . . . . . . . 103 Lights (cont'd)
Airbag Readiness . . . . . . . . . . . . . 102
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 107
Brake System Warning . . . . . . . 107
Charging System . . . . . . . . . . . . . 104
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 105
Cruise Control . . . . . . . . . . . . . . . . .110
Engine Oil Pressure . . . . . . . . . . 109
Flash-to-Pass . . . . . . . . . . . . . . . . . 123
High-Beam On . . . . . . . . . . . . . . . . .110
High/Low Beam Changer . . . . . 123
Low Fuel Warning . . . . . . . . . . . . .110
Seat Belt Reminders . . . . . . . . . . 102
Security . . . . . . . . . . . . . . . . . . . . . . .110
StabiliTrak OFF . . . . . . . . . . . . . . . 108
Tire Pressure . . . . . . . . . . . . . . . . . 109
Tow/Haul Mode . . . . . . . . . . . . . . . 108
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 108
Locking Rear Axle . . . . . . . . . . . . . . 190
Locks Automatic Door . . . . . . . . . . . . . . . . . 31
Cargo Door Relocking . . . . . . . . . . 30
Delayed Locking . . . . . . . . . . . . . . . . 30
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Lockout Protection . . . . . . . . . . . . . . 31 Locks (cont'd)
Power Door . . . . . . . . . . . . . . . . . . . . . 30
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Loss of Control . . . . . . . . . . . . . . . . . 165
Low Fuel Warning Light . . . . . . . . . 110
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 75
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 313
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 307
Maintenance Schedule . . . . . . . . . 303 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 310
Malfunction Indicator Lamp . . . . . 105
Manual Mirrors . . . . . . . . . . . . . . . . . . 36
Manual Mode . . . . . . . . . . . . . . . . . . . 185
Manual Windows . . . . . . . . . . . . . . . . 38
Media Avoiding Untrusted Devices . . 138
Messages
Engine Power . . . . . . . . . . . . . . . . .116
Vehicle . . . . . . . . . . . . . . . . . . . . . . . .115
Vehicle Speed . . . . . . . . . . . . . . . . .116

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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350 Index
MirrorsConvex . . . . . . . . . . . . . . . . . . . . . . . . . 36
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 37
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 37
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 36
Manual Rearview . . . . . . . . . . . . . . . 37
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . 36
Mirrors, Interior Rearview . . . . . . . . 37
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 264
Multi-band Antenna . . . . . . . . . . . . . 138
N
Navigation OnStar . . . . . . . . . . . . . . . . . . . . . . . 334
New Vehicle Break-In . . . . . . . . . . . 173
Noise Control System . . . . . . . . . . 240
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . 99 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 165
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine Oil Life System . . . . . . . 222
Engine Oil Pressure Gauge . . . 100 Oil (cont'd)
Pressure Light . . . . . . . . . . . . . . . . 109
Older Children, Restraints . . . . . . . 68
Online Owner Center . . . . . . . . . . . 321
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 331
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 338
OnStar Connections . . . . . . . . . . . . 335
OnStar Diagnostics . . . . . . . . . . . . . 337
OnStar Emergency . . . . . . . . . . . . . 333
OnStar Navigation . . . . . . . . . . . . . . 334
OnStar Overview . . . . . . . . . . . . . . . 332
OnStar Security . . . . . . . . . . . . . . . . 334
OnStar System . . . . . . . . . . . . . . . . . 148
Operation Infotainment System . . . . . . . . . . 133
Ordering Service Publications . . . . . . . . . . 327
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Overheating, Engine . . . . . . . . . . . . 233
Overview . . . . . . . . . . . . . . . . . . 130, 132
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 179
Shifting Out of . . . . . . . . . . . . . . . . 180 Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . . . 187
Brake and P (Park)
Mechanism Check . . . . . . . . . . 242
Over Things That Burn . . . . . . . 180
Parking Assist . . . . . . . . . . . . . . . . . . 194
Perchlorate Materials Requirements, California . . . . . . 215
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . .116
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 148
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 30
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 95
Protection, Battery . . . . . . . . . . . . 127
Retained Accessory (RAP) . . . 177
Seat Adjustment . . . . . . . . . . . . . . . . 42
Steering Fluid . . . . . . . . . . . . . . . . . 235
Windows . . . . . . . . . . . . . . . . . . . . . . . 38
Pregnancy, Using Seat Belts . . . . 54
Privacy Vehicle Data Recording . . . . . . . 330
Program
Courtesy Transportation . . . . . . 324

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
352 Index
Seats (cont'd)Reclining Seatbacks . . . . . . . . . . . . 43
Securing Child Restraints . . . . 82, 84
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . .110
OnStar . . . . . . . . . . . . . . . . . . . . . . . 334
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 34
Service . . . . . . . . . . . . . . . . . . . . . . . . . 161 Accessories and
Modifications . . . . . . . . . . . . . . . . 215
Climate Control System . . . . . . . 156
Doing Your Own Work . . . . . . . . 215
Maintenance Records . . . . . . . . 313
Maintenance, General Information . . . . . . . . . . . . . . . . . . 301
Parts Identification Label . . . . . 314
Publications Ordering Information . . . . . . . . . . . . . . . . . . 327
Scheduling Appointments . . . . . 324
Services Special Application . . . . . . . . . . . 307
Servicing the Airbag . . . . . . . . . . . . . 66
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 241
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 179
Out of Park . . . . . . . . . . . . . . . . . . . 180 Side Blind Zone Alert (SBZA) . . . 195
Side Door . . . . . . . . . . . . . . . . . . . . . . . 32
Sidemarker
Bulb Replacement . . . . . . . . . . . . 245
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 125
Sliding Door . . . . . . . . . . . . . . . . . . . . . 33
Special Application Services . . . . 307
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . . 315
Speedometer . . . . . . . . . . . . . . . . . . . . 99
StabiliTrak
OFF Light . . . . . . . . . . . . . . . . . . . . . 108
Start Assist, Hill . . . . . . . . . . . . . . . . . 188
Start Vehicle, Remote . . . . . . . . . . . 28
Starter Switch Check . . . . . . . . . . . 241
Starting the Engine . . . . . . . . . . . . . 175
Steering . . . . . . . . . . . . . . . . . . . . . . . . 164 Fluid, Power . . . . . . . . . . . . . . . . . . 235
Wheel Adjustment . . . . . . . . . . . . . . 91
Wheel Controls . . . . . . . . . . . . . . . . . 91
Storage Areas Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Storage Compartments . . . . . . . . . . 88
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 169
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 40 Swing-out Windows . . . . . . . . . . . . . . 39
Switches
Airbag On-Off . . . . . . . . . . . . . . . . . . . 63
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Infotainment . . . . . . . . . . . . . 129, 331
Noise Control . . . . . . . . . . . . . . . . . 240
T
Taillamps . . . . . . . . . . . . . . . . . . . . . . . 245
Text Telephone (TTY) Users . . . . 321
Theft-Deterrent Systems . . . . . . . . . 34Immobilizer . . . . . . . . . . . . . . . . . . . . . 34
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255 All-Season . . . . . . . . . . . . . . . . . . . . 256
All-Terrain . . . . . . . . . . . . . . . . . . . . 256
Buying New Tires . . . . . . . . . . . . . 271
Chains . . . . . . . . . . . . . . . . . . . . . . . . 276
Changing . . . . . . . . . . . . . . . . . . . . . 278
Designations . . . . . . . . . . . . . . . . . 259
Different Size . . . . . . . . . . . . . . . . . 273
Dual Rotation . . . . . . . . . . . . . . . . . 270
Full-Size Spare . . . . . . . . . . . . . . . 285
If a Tire Goes Flat . . . . . . . . . . . . 276
Inspection . . . . . . . . . . . . . . . . . . . . 268
Pressure . . . . . . . . . . . . . . . . . . . . . . 263
Pressure Light . . . . . . . . . . . . . . . . 109