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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Infotainment System 143
phone book and phone pairing
information. For information on how
to delete this information, see the
previous section“Deleting a Paired
Phone” and the previous sections
on deleting name tags.
Other Information
The Bluetooth word mark and logos
are owned by the Bluetooth SIG,
Inc. and any use of such marks by
General Motors is under license.
Other trademarks and trade names
are those of their respective owners.
See Radio Frequency Statement
0 331.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Driving and Operating 185
1. View displayed by thecamera
1. View displayed by thecamera
2. Corners of the rear bumper
Displayed images may be further or
closer than they appear. The area
displayed is limited and objects that
are close to either corner of the
bumper or under the bumper do not
display.
When the System Does Not
Seem To Work Properly
The RVC system might not work
properly or display a clear image if:
. It is dark. .
The sun or the beam of
headlamps is shining directly
into the camera lens.
. Ice, snow, mud, or anything else
builds up on the camera lens.
Clean the lens, rinse it with
water, and wipe it with a soft
cloth.
. The back of the vehicle is in an
accident. The position and
mounting angle of the camera
can change or the camera can
be affected. Be sure to have the
camera and its position and
mounting angle checked at your
dealer.
Troubleshooting
If the vehicle is in R (Reverse) and
a blue screen is displayed in the
mirror and then the display shuts
off, see your dealer for service.
Park Assist
If equipped, the Rear Park Assist
(RPA) system uses sensors on the
rear bumper to assist with parking
and avoiding objects while in
R (Reverse).
{Warning
The Park Assist system does not
detect children, pedestrians,
bicyclists, animals, or objects
below the bumper or that are too
close or too far from the vehicle.
It is not available at speeds
greater than 8 km/h (5 mph). To
prevent injury, death, or vehicle
damage, even with Park Assist,
always check the area around the
vehicle and check all mirrors
before backing.
How the System Works
RPA comes on automatically when
the shift lever is moved into
R (Reverse). A single beep sounds
to indicate the system is working.
RPA operates only at speeds less
than 8 km/h (5 mph).
An obstacle detection is indicated
by beeps. The time between beeps
gets shorter as the vehicle

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
210 Driving and Operating
Use only a round, seven-wire
connector with flat blade terminals
meeting SAE J2863 specifications
for proper electrical connectivity.
The seven-wire harness contains
the following trailer circuits:Stop/Turn
Signal Left* Yellow
Stop/Turn
Signal Right* Dark Green
Tail/Parking
Lamps** Brown
Reverse
Lamps** Light Green
Battery Feed Red/Black
Ground White
Electric Trailer
Brake Dark Blue *If the vehicle is a cutaway with
trailer provisions, a 15 amp fuse
will be shared for both left/stop
trailer turn and right/stop trailer
turn signals. However, the
cutaway lighting connector will
have a 10 amp fuse for each
signal.
**If the vehicle is a cutaway with
trailer provisions, a 15 amp fuse
will be shared for trailer park
lamps and cutaway rear lighting
connector park lamps. Also, a
10 amp fuse will be shared for
trailer back-up lamps and cutaway
rear lighting connector back-up
lamps.
Heavy-Duty Trailer Wiring Harness
Package
lf equipped, the trailer wiring
harness, with a seven-pin connector
is mounted on the trailer hitch.
1. Left Turn/Brake
2. Taillamps
3. Reverse Lamps
4. Battery Feed
5. Right Turn/Brake
6. Electric Brakes
7. Ground
Electric Brake Control Wiring
Provisions
If the vehicle is not equipped with
an integrated trailer brake controller,
and the trailer has electric brakes, a
trailer brake controller needs to be
installed on the vehicle. The brake

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Driving and Operating 211
controller should be installed by
your dealer or a qualified service
center.
If equipped, wiring provisions for an
aftermarket electric trailer brake
controller are included with the
vehicle as part of the trailer wiring
package. The harness contains the
following circuits:Electric Trailer
Brakes Dark Blue
Battery Feed Red/White
Brake Apply
Signal Light Blue
Ground Black
There are four blunt cut wires under
the floor carpeting in front of the
brake pedal. It will be necessary to
have a technician connect the
12-volt power to the engine
compartment fuse block.
Refer to the aftermarket electric
trailer brake controller owner's
manual to determine wire color
coding of the electric trailer brake controller. The wire colors on the
brake controller may be different
from the vehicle.
Trailer Lamps
Always check all trailer lamps are
working at the beginning of each
trip, and periodically on longer trips.
Turn Signals When Towing a
Trailer
When properly connected, the trailer
turn signals will illuminate to indicate
the vehicle is turning, changing
lanes, or stopping. When towing a
trailer, the arrows on the instrument
cluster will illuminate even if the
trailer is not properly connected or
the bulbs are burned out.
Tow/Haul Mode
Tow/Haul assists when pulling a
heavy trailer or a large or heavy
load. For instructions on how to
enter Tow/Haul mode, see
Tow/Haul
Mode 0175.
Tow/Haul Mode is designed to be
most effective when the vehicle and
trailer combined weight is at least 75% of the vehicle's Gross
Combined Weight Rating (GCWR).
See
“Trailer Weight ”under Trailer
Towing 0201.
Tow/Haul Mode is most useful when
towing a heavy trailer or carrying a
large or heavy load:
. through rolling terrain
. in stop-and-go traffic
. in busy parking lots
Operating the vehicle in Tow/Haul
Mode when lightly loaded or not
towing will not cause damage;
however, it is not recommended and
may result in unpleasant engine and
transmission driving characteristics
and reduced fuel economy.
Trailer Sway
Control (TSC)
Vehicles with StabiliTrak/Electronic
Stability Control (ESC) have a
Trailer Sway Control (TSC) feature.
Trailer sway is unintended
side-to-side motion of a trailer while
towing. If the vehicle is towing a
trailer and the TSC detects that

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Customer Information 333
Vehicle Data
Recording and
Privacy
The vehicle has a number of
computers that record information
about the vehicle’s performance and
how it is driven or used. For
example, the vehicle uses computer
modules to monitor and control
engine and transmission
performance, to monitor the
conditions for airbag deployment
and deploy them in a crash, and,
if equipped, to provide antilock
braking to help the driver control the
vehicle. These modules may store
data to help the dealer technician
service the vehicle or to help GM
improve safety or features. Some
modules may also store data about
how the vehicle is operated, such as
rate of fuel consumption or average
speed. These modules may retain
personal preferences, such as radio
presets, seat positions, and
temperature settings.
Cybersecurity
GM collects information about the
use of your vehicle including
operational and safety related
information. We collect this
information to provide, evaluate,
improve, and troubleshoot our
products and services and to
develop new products and services.
The protection of vehicle electronics
systems and customer data from
unauthorized outside electronic
access or control is important to
GM. GM maintains appropriate
security standards, practices,
guidelines and controls aimed at
defending the vehicle and the
vehicle service ecosystem against
unauthorized electronic access,
detecting possible malicious activity
in related networks, and responding
to suspected cybersecurity incidents
in a timely, coordinated and effective
manner. Security incidents could
impact your safety or compromise
your private data. To minimize
security risks, please do not connect
your vehicle electronic systems to
unauthorized devices or connect
your vehicle to any unknown oruntrusted networks (such as
Bluetooth, WIFI or similar
technology). In the event you
suspect any security incident
impacting your data or the safe
operation of your vehicle, please
stop operating your vehicle and
contact your dealer.
Event Data Recorders
This vehicle is equipped with an
event data recorder (EDR). The
main purpose of an EDR is to
record, in certain crash or near
crash-like situations, such as an air
bag deployment or hitting a road
obstacle, data that will assist in
understanding how a vehicle’s
systems performed. The EDR is
designed to record data related to
vehicle dynamics and safety
systems for a short period of time,
typically 30 seconds or less. The
EDR in this vehicle is designed to
record such data as:
.
How various systems in your
vehicle were operating;

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
OnStar 335
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . . 335
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . . 336
Security . . . . . . . . . . . . . . . . . . . . . . 337
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . . 337
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
Qtwice
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.
Press
=to:
. Open the OnStar app on the
infotainment display. See the
infotainment manual for
information on how to use the
OnStar app.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
Index 345
Automatic (cont'd)Headlamp System . . . . . . . . . . . . .112
Transmission . . . . . . . . . . . . . . . . . 171
Transmission Fluid . . . . . . 225, 228
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 174
Shift Lock Control FunctionCheck . . . . . . . . . . . . . . . . . . . . . . . 243
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 131
Avoiding Untrusted Media Devices . . . . . . . . . . . . . . . . . . . . . . . 126
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 241
B
Battery Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . .116
Load Management . . . . . . . . . . . . .115
Power Protection . . . . . . . . . . . . . .116
Battery - North America . . . . 240, 288
Blade Replacement, Wiper . . . . . 244
Bluetooth Overview . . . . . . . . . . . . . . . . . . . . . 136
Brake System Warning Light . . . . . . . . . . 94
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Antilock . . . . . . . . . . . . . . . . . . . . . . . 176 Brakes (cont'd)
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 177
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Parking . . . . . . . . . . . . . . . . . . . . . . . 177
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 153
Break-In, New Vehicle . . . . . . . . . . 162
Bulb Replacement Center High-MountedStoplamp (CHMSL) . . . . . . . . . 247
Front Turn Signal, Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . . . 245
Halogen Bulbs . . . . . . . . . . . . . . . . 245
Headlamp Aiming . . . . . . . . . . . . . 245
Headlamps . . . . . . . . . . . . . . . . . . . 245
License Plate Lamps . . . . . . . . . 247
Taillamps . . . . . . . . . . . . . . . . . . . . . 246
Buying New Tires . . . . . . . . . . . . . . . 271
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 81
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 216
California Proposition
65 Warning . . . . . . . . . .215, 240, 288,
Back CoverCamera
Rear Vision (RVC) . . . . . . . . . . . . 184
Canadian Vehicle Owners . . . . . . . . 2
Capacities and Specifications . . . . . . . . . . . . . . . . . 318
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 170
Winter Driving . . . . . . . . . . . . . . . . 156
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . . . 77
Cargo Door Relocking . . . . . . . . . . . 14
Caution, Danger, and Warning . . . . 2
CD Player . . . . . . . . . . . . . . . . . . . . . . 126
Center High-Mounted
Stoplamp (CHMSL) . . . . . . . . . . . 247
Chains, Tire . . . . . . . . . . . . . . . . . . . . 275
Charging System Light . . . . . . . . . . 92
Check
Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . 93
Ignition Transmission Lock . . . 243
Child Restraints Infants and Young Children . . . . . 57
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 62
Older Children . . . . . . . . . . . . . . . . . . 55
Securing . . . . . . . . . . . . . . . . . . . . 70, 72
Systems . . . . . . . . . . . . . . . . . . . . . . . . 59

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13882570) - 2020 - CRC - 11/1/19
350 Index
Manual Mirrors . . . . . . . . . . . . . . . . . . 21
Manual Mode . . . . . . . . . . . . . . . . . . . 174
Manual Windows . . . . . . . . . . . . . . . . 23
MediaAvoiding Untrusted Devices . . 126
Messages Engine Power . . . . . . . . . . . . . . . . 104
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 104
Vehicle Speed . . . . . . . . . . . . . . . . 104
Mirrors Convex . . . . . . . . . . . . . . . . . . . . . . . . . 21
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 22
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 22
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 21
Manual Rearview . . . . . . . . . . . . . . . 22
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Trailer Tow . . . . . . . . . . . . . . . . . . . . . . 21
Mirrors, Interior Rearview . . . . . . . . 22
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 264
Multi-band Antenna . . . . . . . . . . . . . 126
N
Navigation
Connected Services . . . . . . . . . . 341
New Vehicle Break-In . . . . . . . . . . . 162
Noise Control System . . . . . . . . . . 241
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . 87
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 154
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 222
Engine Oil Life System . . . . . . . 224
Engine Oil Pressure Gauge . . . . . 88
Pressure Light . . . . . . . . . . . . . . . . . . 97
Older Children, Restraints . . . . . . . 55
Online Owner Center . . . . . . . . . . . 324
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 334
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 337
OnStar Emergency . . . . . . . . . . . . . 336
OnStar Overview . . . . . . . . . . . . . . . 335
OnStar Security . . . . . . . . . . . . . . . . 337
OnStar System . . . . . . . . . . . . . . . . . 136
Operation Infotainment System . . . . . . . . . . 121
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Overheating, Engine . . . . . . . . . . . . 235
Overview . . . . . . . . . . . . . . . . . . 118, 120
Instrument Panel . . . . . . . . . . . . . . . . 5
P
ParkShifting Out of . . . . . . . . . . . . . . . . 170
Park Assist . . . . . . . . . . . . . . . . . . . . . 185
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 177
Brake and P (Park)Mechanism Check . . . . . . . . . . 243
Over Things That Burn . . . . . . . 170
Perchlorate Materials
Requirements, California . . . . . . 216
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 105
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . 136
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 14
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Outlets . . . . . . . . . . . . . . . . . . . . . . . . . 83
Protection, Battery . . . . . . . . . . . . .116
Retained Accessory (RAP) . . . 167
Seat Adjustment . . . . . . . . . . . . . . . . 27
Steering Fluid . . . . . . . . . . . . . . . . . 237
Windows . . . . . . . . . . . . . . . . . . . . . . . 23
Pregnancy, Using Seat Belts . . . . 41
Privacy Vehicle Data Recording . . . . . . . 333