2018 CHEVROLET VOLT ECU

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
346 Customer Information
General Motors North America and
Chevrolet reserve the right to limit
services or payment to an owner or
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 certified Volt or ELR
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. Emergency towing may be
covered during the Extended
Vehicle (EV) warranty.
. Flat Tire Change: Service to
change a flat tire with the tire
sealant and compressor kit.
If the tire has been separated
from the wheel, has damaged
sidewalls, or has a large
puncture, the tire is too severely
damaged for the tire sealant and
compressor kit to be effective
and the vehicle will have to be
towed. 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 mi.
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
Vehicles
. Lock-Out Service: Vehicle
registration is required.
. Trip Interruption Benefits and
Assistance: Must be over
150 km (93 mi) from where the
trip was started to qualify.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
OnStar 355
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . . 355
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . . 356
Security . . . . . . . . . . . . . . . . . . . . . . 357
Navigation . . . . . . . . . . . . . . . . . . . . 357
Connections . . . . . . . . . . . . . . . . . . 358
Diagnostics . . . . . . . . . . . . . . . . . . . 360
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . . 361
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 active. 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 VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
OnStar 357
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 VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
358 OnStar
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 app. 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
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 VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
364 OnStar
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 VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
OnStar 365
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 VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Index 367
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 236
Accessory Power . . . . . . . . . . . . . . . 174
Adaptive Cruise Control . . . . . . . . 193
Add-On Electrical Equipment . . . 232
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 361
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 332
Air Cleaner/Filter, Engine . . . . . . . 243
Air Conditioning . . . . . . . . . . . . . . . . 153
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 159
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 158
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 77
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 69
Passenger Sensing System . . . . 71
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 69
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 70
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 68
Where Are the Airbags? . . . . . . . . 66 Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 76
Passenger Status Indicator . . . .113
Readiness Light . . . . . . . . . . . . . . .113
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 76
System Check . . . . . . . . . . . . . . . . . . 65
Alarm Vehicle Security . . . . . . . . . . . . . . . . 46
Alert
Lane Change . . . . . . . . . . . . . . . . . 209
Side Blind Zone (SBZA) . . . . . . 209
All-Season Tires . . . . . . . . . . . . . . . . 272
Antilock Brake System (ABS) . . . 185 Warning Light . . . . . . . . . . . . . . . . . .117
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 315
Interior . . . . . . . . . . . . . . . . . . . . . . . . 320
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 345
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 205
Assistance Systems for Parking and Backing . . . . . . . . . . 201
Automatic Climate Control System . . . . . . . 153
Door Locks . . . . . . . . . . . . . . . . . . . . . 43

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
368 Index
Automatic (cont'd)Forward Braking . . . . . . . . . . . . . . 207
Headlamp System . . . . . . . . . . . . 147
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 110
Power Protection . . . . . . . . . . . . . 151
Battery - North America . . . . 253, 306
Battery Gauge High Voltage . . . . . . . . . . . . . . . . . . .110
Blade Replacement, Wiper . . . . . 256
Brake Parking, Electric . . . . . . . . . . . . . . 185
System Warning Light . . . . . . . . .116
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 251 Antilock . . . . . . . . . . . . . . . . . . . . . . . 185
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Regenerative Braking . . . . . . . . . 187
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 162
Automatic Forward . . . . . . . . . . . 207
Break-In, New Vehicle . . . . . . . . . . 171
Bulb Replacement Halogen Bulbs . . . . . . . . . . . . . . . . 258
Headlamp Aiming . . . . . . . . . . . . . 258
Headlamps . . . . . . . . . . . . . . . . . . . 258
License Plate Lamps . . . . . . . . . 260
Taillamps . . . . . . . . . . . . . . . . . . . . . 259
Buying New Tires . . . . . . . . . . . . . . . 286
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 102
California
Fuel Requirements . . . . . . . . . . . 229
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 236
California Proposition
65 Warning . . . . . . . . . .235, 253, 306, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 339
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 182
Hatch . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Winter Driving . . . . . . . . . . . . . . . . 166
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 98
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . . 97
Chains, Tire . . . . . . . . . . . . . . . . . . . . 291
Charge Cord . . . . . . . . . . . . . . . . . . . . 220
Charging Delay Override . . . . . . . . . . . . . . . 215
Electrical Requirements . . . . . . 227
Plug-In . . . . . . . . . . . . . . . . . . . . . . . 213 Charging (cont'd)
Programmable . . . . . . . . . . . . . . . . 123
Utility Interruption . . . . . . . . . . . . . 226
Wireless . . . . . . . . . . . . . . . . . . . . . . 103
Charging Status Screens . . . . . . . 215
Charging System Light . . . . . . . . . 114
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . .114
Child Restraints Infants and Young Children . . . . . 79
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 84
Older Children . . . . . . . . . . . . . . . . . . 77
Securing . . . . . . . . . . . . . . . . . . . . 90, 92
Systems . . . . . . . . . . . . . . . . . . . . . . . . 81
Circuit Breakers . . . . . . . . . . . . . . . . 262
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 315
Interior Care . . . . . . . . . . . . . . . . . . 320
Climate Control Systems Automatic . . . . . . . . . . . . . . . . . . . . . 153
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Cluster, Instrument . . . . . . . . . . . . . 106
Collision Damage Repair . . . . . . . 348
Compact Spare Tire . . . . . . . . . . . . 305
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 96