2021 CHEVROLET EXPRESS CARGO AUX

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
110 Infotainment System
GM logo may appear on the iPod, and iPod
appears on the infotainment display. The
iPod music appears on the infotainment
display and begins playing.
The iPod charges while it is connected to
the vehicle if the ignition is on or in ACC/
ACCESSORY. When the vehicle is turned off,
the iPod automatically powers off and will
not charge or draw power from the vehicle's
battery.
If you have an older iPod model that is not
supported, it can still be used by connecting
it to the auxiliary input jack using a
standard 3.5 mm (1/8 in) stereo cable. See
“Using the Auxiliary Input Jack”previously in
this section.
Using the Radio to Control a USB
Storage Device or iPod
The radio can control a USB storage device
or an iPod using the radio buttons and
knobs, and can display song information on
the infotainment display.
f: Turn to select files.
©SEEK : Press to go to the start of the
track, if more than 10 seconds have played.
Press and hold or press multiple times to
continue moving backward through tracks.
¨SEEK : Press to go to the next track. Press
and hold or press multiple times to continue
moving forward through tracks.
sREV : Press and hold to reverse playback
quickly. Sound is heard at a reduced volume.
Release
sREV to resume playing. The
elapsed time of the file displays.
\FWD : Press and hold to advance
playback quickly. Sound is heard at a
reduced volume. Release
\FWD to resume
playing. The elapsed time of the file
displays.
4: Press to display additional information
about the selected track.
Using Softkeys to Control a USB Storage
Device or iPod
The five softkeys below the infotainment
display are used to control the functions
listed below.
To use the softkeys:
1. Press the first or fifth softkey below the infotainment display to display the
functions listed below, or press the
softkey below the function if it is
currently displayed. 2. Press the softkey below the tab with the
function on it to use that function.
j:Press the softkey belowjto pause the
track. The tab appears raised when pause is
being used. Press the softkey below
jagain
to resume playback.
Back : Press the softkey below the Back tab
to go back to the main display screen on an
iPod, or the root directory on a USB storage
device.
c: Press the softkey belowcto view
the contents of the current folder on the
USB drive. To browse and select files:
1. Press the softkey below
c.
2. Turn
fto scroll through the list of
folders.
3. Press
fto select the desired folder.
If there is more then one folder, repeat
Steps 1 and 2 until the desired folder is
reached.
4. Turn
fto scroll through the files in the
selected folder.
5. Press
fto select the desired file to be
played.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
Climate Controls 121
Rear Window Defogger
If equipped with a rear window defogger, a
warming grid is used to remove fog or frost
from the rear window.
1:Press to turn the rear window
defogger on or off. An indicator light on the
button comes on to show that the rear
window defogger is on.
The defogger only works when the ignition
is on. The defogger turns off if the ignition
is turned off or to ACC/ACCESSORY.
Heated Mirrors: If equipped with heated
outside mirrors, the mirrors heat to help
clear fog or frost from the surface of the
mirror when
1is pressed. See Heated
Mirrors 019.
Do not drive the vehicle until all the
windows are clear.
Caution
Do not use a razor blade or sharp object
to clear the inside rear window. Do not
adhere anything to the defogger grid
lines in the rear glass. These actions may
damage the rear defogger. Repairs would
not be covered by the vehicle warranty.
Rear Heating System
If equipped, the rear heating system lets
you adjust the amount of air flowing into
the rear of the vehicle, from the front
seating area. This feature works with the
main climate control system in the vehicle.
AUX : The thumbwheel for this system is on
the instrument panel below the audio
system.
9: Turn the thumbwheel up or down to
increase or decrease the amount of heated
air sent to the rear seating area.
Q: This position supplies the most amount
of heat to the rear seating area.
c: This position supplies half the amount
of heat to the rear seating area.
R: This position supplies the least amount
of heat to the rear seating area.
9: This turns the rear heating system off.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
122 Climate Controls
Rear Climate Control System
If equipped with a rear heating and air
conditioning system, it controls the
temperature, fan speed, and air delivery for
the rear seat passengers only. The front
climate control panel is in the overhead
console between the driver and front
passenger.
Front Climate Control Panel
1. Fan Control
2. Air Delivery Mode Control
3. Temperature Control
Use this control panel to maintain a
separate temperature setting. Adjust the
direction of the airflow or adjust the fan
speed for the rear seat passenger(s). When the fan knob is in the AUX position,
the rear climate control panel can be used
to adjust the climate settings in the rear
seating area.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
Climate Controls 123
Rear Climate Control Panel
1. Fan Control
2. Air Delivery Mode Control
3. Temperature Control
For vehicles with a rear climate control
panel, it is located overhead behind the
driver and front passenger, centered in front
of the second row. To adjust the rear
climate control panel settings by a rear seat
passenger, the front climate control panel
fan knob must be in the AUX position. The
fan speed, air delivery mode, and
temperature can then be adjusted. AUX :
Turn the fan knob on the front
climate control panel to AUX to let rear seat
passengers use the control panel in the rear
seating area. This disables the front control
panel. To return control to the front panel,
move the fan knob out of AUX.
9: Turns the system off.
9:Turn clockwise or counterclockwise to
increase or decrease the fan speed in the
rear seating area. Temperature Control :
Turn clockwise or
counterclockwise to increase or decrease the
temperature in the rear seating area.
The air conditioning system on the main
climate control panel must be turned on to
direct cooled air to the rear of the vehicle.
If it is not on, then the temperature in the
rear of the vehicle remains at cabin
temperature.
Air Delivery Mode Control : Turn clockwise
or counterclockwise to change the direction
of the airflow in the rear seating area.
To change the current mode, select one of
the following:
H: Air is directed to the upper outlets,
with some directed to the floor outlets.
2: Air is directed to the floor outlets.
Be sure to keep the area under the front
seats clear of any objects so that the air
inside of the vehicle can circulate effectively.
For information on how to use the main
climate control system, see Climate Control
Systems 0119. For information on
ventilation, see Air Vents0124.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
138 Driving and Operating
Caution
Cranking the engine for long periods of
time, by returning the ignition to the
START position immediately after
cranking has ended, can overheat and
damage the cranking motor, and drain
the battery. Wait at least 15 seconds
between each try, to let the cranking
motor cool down.
2. If the engine does not start after five to 10 seconds, especially in very cold
weather (below −18 °C or 0 °F), it could
be flooded with too much gasoline. Try
pushing the accelerator pedal all the way
to the floor and holding it there as you
hold the key in START for up to
15 seconds. Wait at least 15 seconds
between each try, to allow the cranking
motor to cool down. When the engine
starts, let go of the key and accelerator.
If the vehicle starts briefly but then
stops again, do the same thing. This
clears the extra gasoline from the
engine. Do not race the engine
immediately after starting it. Operate
the engine and transmission gently until
the oil warms up and lubricates all
moving parts.
Fast Idle System
If equipped, this feature is available only
with cruise control. The manual fast idle
switch is operated using the cruise control
buttons on the left side of the steering
wheel.
This system can be used to increase engine
idle speed whenever the following
conditions are met:
.The parking brake is set.
.The brake pedal is not pressed.
.The vehicle must not be moving and the
accelerator must not be pressed.
To control the fast idle:
.To enable the Fast Idle System, press and
release the cruise control on/off button
and ensure that the switch indicator light
is lit.
.Press and release the cruise control SET-
button. Engine speed will be held at
approximately 1200 rpm.
When the fast idle is active, the Driver
Information Center (DIC) will display FAST
IDLE ON.
One of the following actions will turn off
the fast idle:
.Pressing the brake.
.Selecting the cruise control cancel button.
.Releasing the parking brake.
.Moving the transmission shift lever out of
P (Park) or N (Neutral).
.Selecting the cruise control on/off button
when it was previously on.
.Pressing the cruise control SET- button a
second time.
.Pressing the accelerator more than
one-quarter of the way down.
.Turning the ignition off.
Retained Accessory Power (RAP)
When the ignition is turned from on to off,
the following features (if equipped) will
continue to function for up to 10 minutes,
or until the driver door is opened. These
features will also work when the ignition is
in RUN or ACC/ACCESSORY:
.Infotainment System
.Power Windows (during RAP this
functionality will be lost when any door
is opened)
.Sunroof (during RAP this functionality will
be lost when any door is opened)
.Auxiliary Power Outlet
.Audio System
.OnStar System

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
208 Vehicle Care
FusesUsage
18 A/C
19 Engine control module battery
20 Left stop/turn cutaway lamp
21 Left stop/turn trailer lamp
22 Right stop/turn cutaway lamp
23 NOX Sensor (Diesel only)
24 Fuel pump 25 Auxiliary power outlet
26 Body control module 3 27 Special equipment option
28 Airbag
29 Steering wheel sensor
30 Engine control module ignition
31 Transmission control module Ignition Fuses
Usage
32 Transmission control module 1 battery
33 Rear parking aid module
34 NOX Sensor (Diesel only)
35 Fuel heater control module (Diesel only)
36 Fuel system control module battery
41 Transmission control module 2, battery
signal
42 Trailer wiring
43 Electro viscous fan clutch (Diesel only)
44 Starter solenoid 45 Engine control module, powertrain signal 2
46 DC-AC inverter 47 –
51 Left high-beam headlamp Fuses
Usage
52 Right high-beam headlamp
53 Left low-beam headlamp
54 Right low-beam headlamp
55 Wipers
56 Canister vent solenoid
58 Body control module 2
59 Body control module 1 61 Engine oil solenoid/ Crankcase vent heater
(Diesel only)
62 O2 sensor 2
63 –
64 Mass airflow/ Canister vent
65 Ignition coils/injectors - odd
66 Daytime running lamps 2
67 Daytime running lamps 1

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
Vehicle Care 209
FusesUsage
68 Auxiliary stoplamps
69 External power for trailer
70 Upfitter stoplamps 71 Fuel heater/FlexFuel sensor
72 Body control module 6
73 Lighter/Data link connector
74 Front blower 75 Engine control module
76 Soot sensors (Diesel only)
77 O2 sensor 1
78 Engine control module/ Powertrain signal 1
79 Ignition coils/injectors - even Relays
Usage
15 Run/Crank
37 NOX Sensor (Diesel only)
38 Fuel pump
39 Crank
40 A/C compressor 48 Electro viscous fan clutch (Diesel only)
49 Powertrain 50 –
57 –
60 – Auxiliary Fuse Block
This component is near the fuse block in the
engine compartment
Fuses Usage
MR-1 Upfitter 1
MR-2 Upfitter 2
MR-3 Upfitter power control
Relays Usage
MR Rel 1 Upfitter 1
MR Rel 2 Upfitter 2

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14583525) - 2021 - CRC - 12/9/20
Vehicle Care 211
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Mini-Fuses Usage
F1 –
F2 Steering wheel sensor
F3 Auxiliary parking lamps
F4 Front parking lamps F5 Trailer parking lamps
F6 Upfitter/Parking lamps F7 Right rear parking lamp
F8 Left rear parking lamp
F9 Exterior rear mirror switch/ Door
lock-unlock control
upfitter/Front camera
module
F10 Airbag/Automatic occupant sensing
F11 –/OnStar
F12 –
F13 HVAC 2
F14 HVAC 1 F15 Reflected LED display Mini-Fuses Usage
F16 Upfitter aux 1/Gas ambulance
F17 Heated outside mirrors
F18 Rear window defogger
F19 Compass
F20 Radio/Chime/SiriusXM satellite radio
F21 Remote function actuator/Tire pressure
monitor
F22 Ignition switch/Discrete logic ignition sensor
F23 Instrument cluster
F24 –
F25 HVAC control
F26 Auxiliary/Trailer reverse lamps
F27 Reverse tail lamps
F28 Upfitter 2/Reading lamps/Ambulance
F29 Rear blower
F30 Upfitter/Courtesy lamps Mini-Fuses Usage
F31 Front door lock
F32 Rear door lock
F33 Cargo door unlock
F34 Front passenger door unlock
F35 Rear passenger door unlock
F36 Driver door unlock F37 –
F38 –
Relays Usage K1 Run
K2 –
K3 Parking lamps
K4 Upfitter 2 K5 Rear window defogger
K6 Retained accessory power