2021 CHEVROLET EXPRESS CARGO DEF system

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 1/4/21
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Keys, Doors, and Windows . . . . . . . . . . . . . . . 6
Seats and Restraints . . . . . . . . . . . . . . . . . . . . . 22
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Instruments and Controls . . . . . . . . . . . . . . . 65
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Infotainment System . . . . . . . . . . . . . . . . . . . . 96
Climate Controls . . . . . . . . . . . . . . . . . . . . . . . . 119
Driving and Operating . . . . . . . . . . . . . . . . . . 125
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Service and Maintenance . . . . . . . . . . . . . . . 250
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . 260
Customer Information . . . . . . . . . . . . . . . . . . 265
Reporting Safety Defects . . . . . . . . . . . . . . . 273
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Connected Services . . . . . . . . . . . . . . . . . . . . . 282
Index . . . . . . . . . . . . . . . . . . . . . . . . . . 285
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,
the CHEVROLET Emblem, and EXPRESS 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 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.
If the vehicle has the Duramax Diesel
engine, see the Duramax diesel supplement
for additional and specific information on
this engine.
Refer to the purchase documentation
relating to your specific vehicle to confirm
the features.
Keep this manual in the vehicle for quick
reference.
Litho in U.S.A.
Part No. 84401538 B Second Printing©2021 General Motors LLC. All Rights Reserved.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
10 Keys, Doors, and Windows
3. Insert the new battery, positive sidefacing down. Replace with a CR2032 or
equivalent battery.
4. Snap the transmitter back together.
Remote Vehicle Start
This vehicle may have a remote start
feature. This feature allows you to start the
engine from outside the vehicle. It may also
start the vehicle's heating or air conditioning
systems. See Climate Control Systems 0119.
Laws in some local communities may restrict
the use of remote starters. For example,
some laws may require a person using
remote start to have the vehicle in view
when doing so. Check local regulations for
any requirements on remote starting of
vehicles.
Do not use the remote start feature if the
vehicle is low on fuel. The vehicle may run
out of fuel.
The RKE transmitter range may be less while
the vehicle is running.
Other conditions can affect the performance
of the transmitter. See Remote Keyless Entry
(RKE) System 08.
/:This button will be on the RKE
transmitter if the vehicle has remote start.
To start the engine using the remote start
feature:
1. Press and release
Qon the transmitter.
2. Immediately press and hold
/until the
turn signal lamps flash. If you cannot see
the lamps, press and hold
/for at least
four seconds.
When the engine starts, the parking
lamps will turn on and remain on while
the engine is running. The doors will be
locked.
The engine will continue to run for
10 minutes. After 30 seconds, repeat the
steps if a 10-minute extension is desired.
Remote start can be extended only once.
After entering the vehicle during a remote
start, turn the ignition on to drive the
vehicle.
A maximum of two remote starts or a start
with an extension are allowed between
ignition cycles. If the remote start procedure is used again
before the first 10-minute time frame has
ended, the first 10 minutes will immediately
expire and the second 10-minute time frame
will start.
After the engine has been remote started
two times or a start with an extension, the
ignition must be turned on and then off
before the remote start procedure can be
used again.
To cancel a remote start do any of the
following:
.Press and hold/until the parking lamps
turn off.
.Turn on the hazard warning flashers.
.Turn the ignition on and then off.
The remote vehicle start feature will not
operate if:
.The key is in the ignition.
.The hood is open.
.The hazard warning flashers are on.
.There is an emission control system
malfunction. See Malfunction Indicator
Lamp (Check Engine Light) 076.
.The engine coolant temperature is
too high.
.The oil pressure is low.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Keys, Doors, and Windows 19
Folding Mirrors
Manual Folding Mirrors
The mirrors can be folded inward toward
the vehicle to prevent damage when going
through an automatic car wash. Push the
mirror outward to return it to the original
position.
Side Blind Zone Alert
The vehicle may have Side Blind Zone Alert.
SeeSide Blind Zone Alert (SBZA) 0155.
Heated Mirrors
For vehicles with heated mirrors:
1:Press to heat the mirrors.
An indicator light in the button lights when
the outside heated mirrors are activated.
See “Rear Window Defogger” underClimate
Control Systems 0119.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear view
of the area behind the vehicle. Do not spray glass cleaner directly on the
mirror. Use a soft towel dampened with
water.
Manual Rearview Mirror
Push the tab forward for daytime use and
pull it rearward for nighttime use to avoid
glare of the headlamps from behind.
Backup Video Manual Mirror
If equipped, this manual dimming mirror
provides a camera view of the area behind
the vehicle. The video display feature comes
on when the vehicle is shifted in R (Reverse),
and turns off when the vehicle is shifted out
of R (Reverse).
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.
See
Rear Vision Camera (RVC) 0152.
Windows
{
Warning
Never leave a child, a helpless adult, or a
pet alone in a vehicle, especially with the
windows closed in warm or hot weather.
They can be overcome by the extreme
heat and suffer permanent injuries or
even death from heat stroke.
Manual Windows
Operate the manual windows by turning the
hand crank on each door to raise or lower
the side door windows.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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40 Seats and Restraints
Warning (Continued)
that person causing severe injury or even
death. The path of an inflating airbag
must be kept clear. Do not put anything
between an occupant and an airbag, and
do not attach or put anything on the
steering wheel hub or on or near any
other airbag covering.
Do not use seat accessories that block the
inflation path of a seat-mounted side
impact airbag.
Never secure anything to the roof of a
vehicle with roof-rail airbags by routing a
rope or tie‐down through any door or
window opening. If you do, the path of
an inflating roof-rail airbag will be
blocked.
When Should an Airbag Inflate?
This vehicle is equipped with one or more
airbags. SeeAirbag System 036. Airbags are
designed to inflate if the impact exceeds the
specific airbag system's deployment
threshold. Deployment thresholds are used
to predict how severe a crash is likely to be
in time for the airbags to inflate and help
restrain the occupants. The vehicle has electronic sensors which help the airbag
system determine the severity of the
impact. Deployment thresholds can vary
with specific vehicle design.
Frontal airbags are designed to inflate in
moderate to severe frontal or near-frontal
crashes to help reduce the potential for
severe injuries mainly to the driver or front
outboard passenger head and chest.
Whether the frontal airbags will or should
deploy is not based primarily on how fast
the vehicle is traveling. It depends largely
on what you hit, the direction of the
impact, and how quickly the vehicle
slows down.
Frontal airbags may inflate at different crash
speeds depending on whether the vehicle
hits an object straight on or at an angle,
and whether the object is fixed or moving,
rigid or deformable, narrow or wide.
Frontal airbags are not intended to inflate
during vehicle rollovers, rear impacts, or in
many side impacts.
Seat-mounted side impact airbags,
if equipped, are designed to inflate in
moderate to severe side crashes depending
on the location of the impact. Seat-mounted
side impact airbags are not designed to
inflate in frontal impacts, near-frontal
impacts, rollovers, or rear impacts.
A seat-mounted side impact airbag is
intended to inflate on the side of the vehicle
that is struck.
The vehicle may or may not be equipped
with roof-rail airbags. Roof-rail airbags are
designed to inflate in moderate to severe
side crashes depending on the location of
the impact. In addition, these roof-rail
airbags are designed to inflate during a
rollover. Roof-rail airbags are not designed
to inflate in frontal, near-frontal, or rear
impacts. All roof-rail airbags will inflate
when either side of the vehicle is struck or if
the sensing system predicts that the vehicle
is about to roll over on its side.
In any particular crash, no one can say
whether an airbag should have inflated
simply because of the vehicle damage or
repair costs.What Makes an Airbag Inflate?
In a deployment event, the sensing system
sends an electrical signal triggering a release
of gas from the inflator. Gas from the
inflator fills the airbag causing the bag to

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Seats and Restraints 41
break out of the cover. The inflator, the
airbag, and related hardware are all part of
the airbag module.
For airbag locations, seeWhere Are the
Airbags? 038.
How Does an Airbag Restrain?
In moderate to severe frontal or near frontal
collisions, even belted occupants can contact
the steering wheel or the instrument panel.
In moderate to severe side collisions, even
belted occupants can contact the inside of
the vehicle.
Airbags supplement the protection provided
by seat belts by distributing the force of the
impact more evenly over the
occupant's body.
Rollover capable roof-rail airbags are
designed to help contain the head and chest
of occupants in the outboard seating
positions in the first, second, and third rows,
if equipped. The rollover capable roof-rail
airbags are designed to help reduce the risk
of full or partial ejection in rollover events,
although no system can prevent all such
ejections. But airbags would not help in many types
of collisions, primarily because the
occupant's motion is not toward those
airbags. See
When Should an Airbag Inflate?
0 40.
Airbags should never be regarded as
anything more than a supplement to seat
belts.
What Will You See after an
Airbag Inflates?
After frontal and seat-mounted side impact
airbags (if equipped) inflate, they quickly
deflate, so quickly that some people may
not even realize the airbags inflated.
Roof-rail airbags (if equipped) may still be at
least partially inflated for some time after
they inflate. Some components of the airbag
module may be hot for several minutes. For
location of the airbags, see Where Are the
Airbags? 038.
The parts of the airbag that come into
contact with you may be warm, but not too
hot to touch. There may be some smoke
and dust coming from the vents in the
deflated airbags. Airbag inflation does not
prevent the driver from seeing out of the windshield or being able to steer the
vehicle, nor does it prevent people from
leaving the vehicle.
{Warning
When an airbag inflates, there may be
dust in the air. This dust could cause
breathing problems for people with a
history of asthma or other breathing
trouble. To avoid this, everyone in the
vehicle should get out as soon as it is
safe to do so. If you have breathing
problems but cannot get out of the
vehicle after an airbag inflates, then get
fresh air by opening a window or a door.
If you experience breathing problems
following an airbag deployment, you
should seek medical attention.
The vehicle has a feature that may
automatically unlock the doors (if equipped
with power door locks), turn on the interior
lamps and hazard warning flashers, and shut
off the fuel system after the airbags inflate.
The feature may also activate, without
airbag inflation, after an event that exceeds
a predetermined threshold. After turning the
ignition off and then on again, the fuel
system will return to normal operation; the

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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42 Seats and Restraints
doors can be locked, the interior lamps can
be turned off, and the hazard warning
flashers can be turned off using the controls
for those features. If any of these systems
are damaged in the crash they may not
operate as normal.
{Warning
A crash severe enough to inflate the
airbags may have also damaged
important functions in the vehicle, such
as the fuel system, brake and steering
systems, etc. Even if the vehicle appears
to be drivable after a moderate crash,
there may be concealed damage that
could make it difficult to safely operate
the vehicle.
Use caution if you should attempt to
restart the engine after a crash has
occurred.
In many crashes severe enough to inflate
the airbag, windshields are broken by
vehicle deformation. Additional windshield
breakage may also occur from the front
outboard passenger airbag.
.Airbags are designed to inflate only once.
After an airbag inflates, you will need
some new parts for the airbag system.
If you do not get them, the airbag
system will not be there to help protect
you in another crash. A new system will
include airbag modules and possibly other
parts. The service manual for the vehicle
covers the need to replace other parts.
.The vehicle has a crash sensing and
diagnostic module which records
information after a crash. See Vehicle
Data Recording and Privacy 0274 and
Event Data Recorders 0275.
.Let only qualified technicians work on the
airbag systems. Improper service can
mean that an airbag system will not work
properly. See your dealer for service.
Airbag On-Off Switch
If the instrument panel has one of the
switches pictured in the following
illustrations, the vehicle has an airbag on-off
switch that you can use to manually turn
on or off the front outboard passenger
airbag. No other airbag is affected by the
airbag on-off switch.
United States
Canada and Mexico

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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86 Instruments and Controls
Vehicle Speed Messages
SPEED LIMITED TO XXX KM/H (MPH)
This message shows that the vehicle speed
has been limited to the speed displayed. The
limited speed is a protection for various
propulsion and vehicle systems, such as
lubrication, thermal, suspension, or tires.
Vehicle Personalization
This vehicle may have customization
capabilities that allow you to program
certain features to one preferred setting.
Customization features can only be
programmed to one setting on the vehicle
and cannot be programmed to a preferred
setting for two different drivers.
All of the customization options may not be
available on your vehicle. Only the options
available will be displayed on the DIC.
The default settings for the customization
features were set when the vehicle left the
factory, but may have been changed from
their default state since then.
The customization preferences are
automatically recalled.To change customization preferences, use
the following procedure.
Entering the Feature Settings Menu
1. Turn the ignition on and place the
vehicle in P (Park).
To avoid excessive drain on the battery,
it is recommended that the headlamps
are turned off.
2. Press
Uto enter the feature
settings menu.
If the menu is not available, FEATURE
SETTINGS AVAILABLE IN PARK will display.
Before entering the menu, make sure the
vehicle is in P (Park).
Feature Settings Menu Items
The following are customization features
that allow you to program settings to the
vehicle:
DISPLAY IN ENGLISH
This feature will only display if a language
other than English has been set. This feature
allows you to change the language in which
the DIC messages appear to English. Press
Uuntil the PRESSVTO DISPLAY IN
ENGLISH screen appears on the DIC display.
Press the set/reset button once to display
all DIC messages in English.
LANGUAGE
This feature allows you to select the
language in which the DIC messages will
appear.
Press
Uuntil the LANGUAGE screen appears
on the DIC display. Press
Vonce to access
the settings for this feature. Then press
U
to scroll through the following settings:
ENGLISH (default) : All messages will appear
in English.
FRANCAIS : All messages will appear in
French.
ESPANOL : All messages will appear in
Spanish.
NO CHANGE : No change will be made to
this feature. The current setting will remain.
To select a setting, press
Vwhile the
desired setting is displayed on the DIC.
A beep will sound once a language has been
selected.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 87
AUTO DOOR LOCK
This feature allows you to select when the
doors will automatically lock.
Press
Uuntil AUTO DOOR LOCK appears on
the DIC display. Press
Vonce to access the
settings for this feature. Then press
Uto
scroll through the following settings:
SHIFT OUT OF PARK (default) : The doors
will automatically lock when the vehicle is
shifted out of P (Park).
AT VEHICLE SPEED : The doors will
automatically lock when the vehicle speed is
above 13 km/h (8 mph) for three seconds.
NO CHANGE : No change will be made to
this feature. The current setting will remain.
To select a setting, press
Vwhile the
desired setting is displayed on the DIC.
AUTO DOOR UNLOCK
This feature allows you to select whether or
not to turn off the automatic door unlocking
feature. It also allows you to select which
doors and when the doors will automatically
unlock. Press
Uuntil AUTO DOOR UNLOCK appears
on the DIC display. Press
Vonce to access
the settings for this feature. Then press
U
to scroll through the following settings:
OFF : None of the doors will automatically
unlock.
DRIVER AT KEY OUT : Only the driver door
will unlock when the key is taken out of the
ignition.
DRIVER IN PARK : Only the driver door will
unlock when the vehicle is shifted into
P (Park).
ALL AT KEY OUT : All of the doors will
unlock when the key is taken out of the
ignition.
ALL IN PARK (default) : All of the doors will
unlock when the vehicle is shifted into
P (Park).
NO CHANGE : No change will be made to
this feature. The current setting will remain.
To select a setting, press
Vwhile the
desired setting is displayed on the DIC.
REMOTE DOOR LOCK
This feature allows you to select the type of
feedback you will receive when locking the
vehicle with the Remote Keyless Entry (RKE) transmitter. You will not receive feedback
when locking the vehicle with the RKE
transmitter if the doors are open. See
Remote Keyless Entry (RKE) System
Operation
08.
Press
Uuntil REMOTE DOOR LOCK appears
on the DIC display. Press
Vonce to access
the settings for this feature. Then press
U
to scroll through the following settings:
OFF : There will be no feedback when you
press
Qon the RKE transmitter.
LIGHTS ONLY : The exterior lamps will flash
when you press
Qon the RKE transmitter.
HORN ONLY : The horn will sound on the
second press of
Qon the RKE transmitter.
HORN & LIGHTS (default) : The exterior
lamps will flash when you press
Qon the
RKE transmitter, and the horn will sound
when
Qis pressed again within five seconds
of the previous command.
NO CHANGE : No change will be made to
this feature. The current setting will remain.
To select a setting, press
Vwhile the
desired setting is displayed on the DIC.