warning CHEVROLET EXPRESS 2023 Workshop Manual

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16547501) - 2023 - CRC - 6/10/22
Instruments and Controls 79
the parking brake does not fully release. If it
stays on after the parking brake is fully
released, there is a brake problem. Have the
brake system inspected right away. This
light may come on if the brake fluid is low.
SeeBrake Fluid 0190.
If the light comes on while driving, pull off
the road and stop carefully. The brake pedal
might be harder to push, or the brake pedal
may go closer to the floor. It could take
longer to stop. If the light is still on, have
the vehicle towed for service. See
Transporting a Disabled Vehicle 0231.
{Warning
The brake system might not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to a crash.
If the light is still on after the vehicle has
been pulled off the road and carefully
stopped, have the vehicle towed for
service.
Antilock Brake System (ABS)
Warning Light
This light comes on briefly when the vehicle
is turned on to show that the light is
working. If it does not come on then, have
it fixed so it will be ready to warn you if
there is a problem.
If the ABS warning light stays on, or comes
on again while driving, the vehicle needs
service. A chime may also sound when the
light stays on.
If the ABS warning light is the only light on,
the vehicle has regular brakes, but ABS is
not functioning.
If both the ABS warning light and the brake
system warning light are on, ABS is not
functioning and there is a problem with the
regular brakes. See your dealer for service.
See Brake System Warning Light 078.
Tow/Haul Mode Light
For vehicles with the Tow/Haul Mode
feature, this light comes on when the Tow/
Haul Mode has been activated.
See Tow/Haul Mode 0140.
Lane Departure Warning (LDW)
Light
This light is green if LDW is on and ready to
operate.
This light changes to amber and flashes to
indicate that the lane marking has been
crossed without using a turn signal in that
direction.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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80 Instruments and Controls
SeeLane Departure Warning (LDW) 0151.
Vehicle Ahead Indicator
If equipped, this indicator will display green
when a vehicle is detected ahead and amber
when you are following a vehicle ahead
much too closely.
See Forward Collision Alert (FCA) System
0 148.
StabiliTrak OFF Light
This light comes on briefly when the vehicle
is turned on to show that the light is
working. If it does not come on then, have
it fixed so it will be ready to warn you if
there is a problem. This light comes on when the StabiliTrak/
Electronic Stability Control (ESC) system is
turned off. If StabiliTrak/ESC is off, the
Traction Control System (TCS) is also off. To
turn ESC off and on, see
Traction Control/
Electronic Stability Control 0142.
If ESC and TCS are off, the systems do not
assist in controlling the vehicle. Adjust
driving accordingly.
Traction Control System (TCS)/
StabiliTrak Light
This light comes on briefly when the vehicle
is turned on to show that the light is
working. If it does not come on then, have
it fixed so it will be ready to warn you if
there is a problem.
If the light is on and not flashing, the TCS
and potentially the StabiliTrak/ESC system
are not fully operational and may not assist
in maintaining control. Adjust driving
accordingly. If the condition persists, see your dealer as soon as possible. A Driver
Information Center (DIC) message may
display.
The light flashes when the TCS and/or the
StabiliTrak/ESC system is actively working.
See
Traction Control/Electronic Stability
Control 0142.
Tire Pressure Light
If equipped with the Tire Pressure Monitor
System (TPMS), this light comes on briefly
when the vehicle is started. It provides
information about tire pressures and
the TPMS.
When the Light Is On Steady
This indicates that one or more of the tires
are significantly underinflated.
A Driver Information Center (DIC) tire
pressure message may also display. Stop as
soon as possible, and inflate the tires to the

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Instruments and Controls 81
pressure value shown on the Tire and
Loading Information label. SeeTire Pressure
0 208.
When the Light Flashes First and Then Is On
Steady
If the light flashes for about a minute and
then stays on, there may be a problem with
the TPMS. If the problem is not corrected,
the light will come on every time the
vehicle is started. See Tire Pressure Monitor
Operation 0210.
Engine Oil Pressure Light
Caution
Driving the vehicle with low engine oil
pressure can damage the engine and the
repairs would not be covered by the
vehicle warranty.
If the engine oil pressure light comes on
while driving:
1. Stop in a safe location and turn off the engine.
2. Check the oil level. See Engine Oil
0 179.
(Continued)
Caution (Continued)
3. Add oil if the oil level is below the
normal operating range.
4. Restart the vehicle. If the engine oil pressure light stays on for more
than 10 seconds, turn the vehicle
back off. Do not restart the vehicle.
See your dealer for service.
This light should come on briefly when the
engine starts. When the engine is off and
the vehicle is on, the light should remain
illuminated. If it does not come on under
either condition, contact your dealer.
If the light comes on and stays on when the
engine is running, it may not have adequate
oil pressure. The oil level may be low or
there may be some other oil system
problem. Turn the engine off when it is safe
to do so and contact your dealer.
Low Fuel Warning Light
English Shown, Metric Similar
A Low Fuel Warning Light near the fuel
gauge comes on briefly when the ignition is
turned on as a check to show it is working.
It also comes on, and a chime sounds when
the fuel gauge indicator nears empty. The
light turns off when fuel is added. If it does
not, have the vehicle serviced.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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82 Instruments and Controls
Security Light
The security light should come on briefly as
the engine is started. If it does not come on,
have the vehicle serviced by your dealer.
If the system is working normally, the
indicator light turns off.
If the light stays on and the engine does
not start, there could be a problem with the
theft-deterrent system. SeeImmobilizer
Operation 016.
High-Beam On Light
This light comes on when the high-beam
headlamps are in use. See
Headlamp High/Low-Beam Changer
0 92.
Cruise Control Light
This light comes on when the cruise control
is set.
This light goes out when the cruise control
is canceled. See Cruise Control0143.
Information Displays
Driver Information Center (DIC)
This vehicle has a DIC.
All messages will appear in the DIC display
at the bottom of the instrument cluster.
The DIC comes on when the ignition is on.
After a short delay, the DIC will display the
information that was last displayed before
the engine was turned off. The DIC displays trip, fuel, and vehicle
system information, and warning messages
if a system problem is detected.
If the vehicle has these features, the DIC
also displays the compass direction and the
outside air temperature when viewing the
trip and fuel information. The compass
direction appears on the top right corner of
the DIC display. The outside air temperature
automatically appears in the bottom right
corner of the DIC display. If there is a
problem with the system that controls the
temperature display, the numbers will be
replaced with dashes. If this occurs, have the
vehicle serviced by your dealer.
DIC Operation and Displays
The DIC has different displays which can be
accessed by pressing the DIC buttons on the
instrument panel, next to the instrument
cluster.

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Lighting 91
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . . . . . . . . 91
Exterior Lamps Off Reminder . . . . . . . . . . . 91
Headlamp High/Low-Beam Changer . . . . 92
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Daytime Running Lamps (DRL) . . . . . . . . . 92
Automatic Headlamp System . . . . . . . . . . . 92
Hazard Warning Flashers . . . . . . . . . . . . . . . 93
Turn and Lane-Change Signals . . . . . . . . . . 93
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . . 95
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Battery Load Management . . . . . . . . . . . . . 95
Battery Power Protection . . . . . . . . . . . . . . 96
Exterior Lighting Battery Saver . . . . . . . . . 96
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the steering
wheel.
There are four positions:
O: Briefly turn the control to this position
to turn the automatic headlamps and
Daytime Running Lamps (DRL) off or
back on.
For vehicles first sold in Canada, the off
position only works for vehicles that are
shifted into the P (Park) position.
AUTO : Automatically turns the exterior
lamps on and off, depending on outside
lighting.
;: Turns on the parking lamps including
all lamps, except the headlamps.
2: Turns on the headlamps together with
the parking lamps and instrument panel
lights.
If the headlamps are turned on while the
vehicle is on, the headlamps turn off
automatically 10 minutes after the ignition
is turned off. If the headlamps are turned on
while the vehicle is off, the headlamps will
continue to stay on. To prevent the battery
from being drained, turn the control to the
Oposition.
A warning chime sounds if the driver door is
opened while the ignition switch is off and
the headlamps are on.
To change the headlamps from low beam to
high beam, pull the turn signal lever all the
way toward you. Then release it.
Exterior Lamps Off Reminder
If a door is open, a reminder chime sounds
when the headlamps or parking lamps are
manually turned on and the key is out of
the ignition. To turn off the chime, turn the
headlamp switch to
Oor AUTO and then
back on, or close and re-open the door. In

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Lighting 93
The vehicle has a light sensor on the top of
the instrument panel. Do not cover the
sensor; otherwise the system will come on
whenever the ignition is on.
The system may also turn on the headlamps
when driving through a parking garage or
tunnel.
There is a delay in the transition between
the daytime and nighttime operation of the
Daytime Running Lamps (DRL) and the
automatic headlamp system so that driving
under bridges or bright overhead street
lights does not affect the system. The DRL
and automatic headlamp system are only
affected when the light sensor sees a
change in lighting lasting longer than the
delay.
If the vehicle is started in a dark garage, the
automatic headlamp system comes on
immediately. Once the vehicle leaves the
garage, it takes approximately 30 seconds
for the automatic headlamp system to
change to DRL if it is light outside. During
that delay, the instrument cluster may not
be as bright as usual. Make sure the
instrument panel brightness control is in the
full bright position. SeeInstrument Panel
Illumination Control 094. To idle the vehicle with the automatic
headlamp system off, turn the control off.
The headlamps will also stay on after
exiting the vehicle. This feature may be
programmable. See
Vehicle Personalization
0 87.
If the feature is not programmable, exit
lighting is automatic. When it is dark
enough outside, the exterior lamps remain
on for 30 seconds after the ignition is
turned off.
Lights On with Wipers
If the windshield wipers are activated in
daylight with the engine on, and the
exterior lamp control is in AUTO, the
headlamps, parking lamps, and other
exterior lamps come on. The transition time
for the lamps coming on varies based on
wiper speed. When the wipers are not
operating, these lamps turn off. Move the
exterior lamp control to
Por;to
disable this feature.
Hazard Warning Flashers
|: Press this button to make the front
and rear turn signal lamps flash on and off.
This warns others that you are having
trouble. Press again to turn the flashers off.
When the hazard warning flashers are on,
the vehicle's turn signals will not work.
Turn and Lane-Change Signals

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Infotainment System 97
Infotainment System
Introduction
Infotainment . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Theft-Deterrent Feature . . . . . . . . . . . . . . . . 98
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Radio
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . 101
Radio Reception . . . . . . . . . . . . . . . . . . . . . . . 102
Fixed Mast Antenna . . . . . . . . . . . . . . . . . . . 103
Multi-Band Antenna . . . . . . . . . . . . . . . . . . . 103
Audio Players
Avoiding Untrusted Media Devices . . . . 103
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . 103
Phone
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Trademarks and License Agreements
Trademarks and License Agreements . . . 112
Introduction
Infotainment
Read the following pages to become familiar
with the features.
{Warning
Taking your eyes off the road for too
long or too often while using any
infotainment feature can cause a crash.
You or others could be injured or killed.
Do not give extended attention to
infotainment tasks while driving. Limit
your glances at the vehicle displays and
focus your attention on driving. Use voice
commands whenever possible.
The infotainment system has built-in
features intended to help avoid distraction
by disabling some functions when driving.
Many infotainment features are also
available through the instrument cluster and
steering wheel controls. Before driving:
.Become familiar with the operation,
center stack controls, and infotainment
controls.
.Set up the audio by presetting favorite
stations, setting the tone, and adjusting
the speakers.
.Set up phone numbers in advance so they
can be called easily by pressing a single
control or by using a single voice
command if equipped with Bluetooth
phone capability.
See Defensive Driving 0121.
To play the infotainment system with the
ignition off, see Retained Accessory Power
(RAP) 0133.
Active Noise Cancellation (ANC)
If equipped, ANC reduces engine noise in the
vehicle’s interior. ANC requires the
factory-installed audio system, radio,
speakers, amplifier (if equipped), induction
system, and exhaust system to work
properly. Deactivation is required by your
dealer if related aftermarket equipment is
installed.

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Infotainment System 107
>:Press the softkey below2to turn
shuffle off. This is the default mode when a
USB storage device or iPod is first
connected.
2: Press the softkey below=orCto shuffle all songs on the USB
storage device or iPod.
C: Press the softkey below>to
shuffle all songs in the current album on
an iPod.
=: Press the softkey below>to
shuffle all songs in the current folder on a
USB storage device.
Phone
Bluetooth
For vehicles equipped with Bluetooth
capability, the system can interact with
many cell phones, allowing:
.Placement and receipt of calls in a
hands-free mode.
.Sharing of the cell phone’s address book
or contact list with the vehicle.
To minimize driver distraction, before
driving, and with the vehicle parked:
.Become familiar with the features of the
cell phone. Organize the phone book and
contact lists clearly and delete duplicate
or rarely used entries. If possible,
program speed dial or other shortcuts.
.Review the controls and operation of the
infotainment system.
.Pair cell phone(s) to the vehicle. The
system may not work with all cell
phones. See “Pairing”in this section for
more information.
.If the cell phone has voice dialing
capability, learn to use that feature to
access the address book or contact list.
See “Voice Pass-Thru” in this section for
more information.
.See “Storing and Deleting Phone
Numbers” in this section for more
information.
{Warning
When using a cell phone, it can be
distracting to look too long or too often
at the screen of the phone or the
infotainment system. Taking your eyes
off the road too long or too often could
cause a crash resulting in injury or death.
Focus your attention on driving. A Bluetooth system can use a
Bluetooth-capable cell phone with a
Hands-Free Profile to make and receive
phone calls. The system can be used while
the ignition is on or in ACC/ACCESSORY. The
range of the Bluetooth system can be up to
9.1 m (30 ft). Not all phones support all
functions, and not all phones work with the
in-vehicle Bluetooth system. See
www.gm.com/bluetooth for more
information on compatible phones in U.S.
and Canada only.
Voice Recognition
The Bluetooth system uses voice recognition
to interpret voice commands to dial phone
numbers and name tags.
For additional information, say
“Help”while
you are in a voice recognition menu.
Noise : Keep interior noise levels to a
minimum. The system may not recognize
voice commands if there is too much
background noise.
When to Speak : A short tone sounds after
the system responds indicating when it is
waiting for a voice command. Wait until the
tone and then speak.

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120 Driving and Operating
Driving and Operating
Driving Information
Driving for Better Fuel Economy . . . . . . . 121
Distracted Driving . . . . . . . . . . . . . . . . . . . . . . 121
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 121
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . . 122
Control of a Vehicle . . . . . . . . . . . . . . . . . . . . 122
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 123
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . 123
Driving on Wet Roads . . . . . . . . . . . . . . . . . 124
Hill and Mountain Roads . . . . . . . . . . . . . . 124
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 125
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . 126
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 126
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 129
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . 130
Starting the Engine . . . . . . . . . . . . . . . . . . . . 132
Fast Idle System . . . . . . . . . . . . . . . . . . . . . . . 133
Retained Accessory Power (RAP) . . . . . . . 133
Engine Coolant Heater . . . . . . . . . . . . . . . . . 133
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 135
Shifting out of Park . . . . . . . . . . . . . . . . . . . . 135
Parking over Things That Burn . . . . . . . . . 136
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . . . . . . . . . . . 136
Running the Vehicle While Parked . . . . . 136
Automatic Transmission
Automatic Transmission . . . . . . . . . . . . . . . 137
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . 139
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . 140
Brakes
Antilock Brake System (ABS) . . . . . . . . . . 140
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . 141
Ride Control Systems
Traction Control/Electronic StabilityControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . 143
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 143
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 145
Rear Vision Camera (RVC) . . . . . . . . . . . . . 146
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Side Blind Zone Alert (SBZA) . . . . . . . . . . . 150
Lane Departure Warning (LDW) . . . . . . . . 151
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Recommended Fuel . . . . . . . . . . . . . . . . . . . . 152
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . . 153
Fuels in Foreign Countries . . . . . . . . . . . . . 153
Fuel Additives . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 153
Filling a Portable Fuel Container . . . . . . . 154
Trailer Towing
General Towing Information . . . . . . . . . . . 155
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . 159
Towing Equipment . . . . . . . . . . . . . . . . . . . . . 167
Trailer Sway Control (TSC) . . . . . . . . . . . . . 170
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . 171

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Driving and Operating 121
Driving Information
Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here
are some driving tips to get the best fuel
economy possible:
.Set the climate controls to the desired
temperature after the engine is started,
or turn them off when not required.
.Avoid fast starts and accelerate smoothly.
.Brake gradually and avoid abrupt stops.
.Avoid idling the engine for long periods
of time.
.When road and weather conditions are
appropriate, use cruise control.
.Always follow posted speed limits or
drive more slowly when conditions
require.
.Keep vehicle tires properly inflated.
.Combine several trips into a single trip.
.Replace the vehicle's tires with the same
TPC Spec number molded into the tire's
sidewall near the size.
.Follow recommended scheduled
maintenance.
Distracted Driving
Distraction comes in many forms and can
take your focus from the task of driving.
Exercise good judgment and do not let other
activities divert your attention away from
the road. Many local governments have
enacted laws regarding driver distraction.
Become familiar with the local laws in
your area.
To avoid distracted driving, keep your eyes
on the road, keep your hands on the
steering wheel, and focus your attention on
driving.
.Do not use a phone in demanding driving
situations. Use a hands-free method to
place or receive necessary phone calls.
.Watch the road. Do not read, take notes,
or look up information on phones or
other electronic devices.
.Designate a front seat passenger to
handle potential distractions.
.Become familiar with vehicle features
before driving, such as programming
favorite radio stations and adjusting
climate control and seat settings. Program
all trip information into any navigation
device prior to driving.
.Wait until the vehicle is parked to
retrieve items that have fallen to the
floor.
.Stop or park the vehicle to tend to
children.
.Keep pets in an appropriate carrier or
restraint.
.Avoid stressful conversations while
driving, whether with a passenger or on a
cell phone.
{Warning
Taking your eyes off the road too long or
too often could cause a crash resulting in
injury or death. Focus your attention on
driving.
Refer to the infotainment section for more
information on using that system and the
navigation system, if equipped, including
pairing and using a cell phone.
Defensive Driving
Defensive driving means “always expect the
unexpected.” The first step in driving
defensively is to wear the seat belt. See
Seat Belts 028.