2023 GMC SIERRA AUX

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
38 Keys, Doors, and Windows
If a popping noise from the mirror is heard,
this sound is normal as the manual detents
are aligning after a manual extend/retract
operation has occurred.
Auxiliary Cargo Mirror Lamps
If equipped, cargo mirror lamps face
rearward to provide more light on the sides
of the vehicle, if needed. SeeExterior Cargo
Lamps 0144.
Advanced Trailering Vision System Side
Cameras
If equipped, the Advanced Trailering Vision
System side cameras are on the bottom of
the outside mirrors. See “Surround Vision
(360 Degrees)” underAssistance Systems for
Parking or Backing 0248.Power Mirrors
To adjust each mirror:
1. Press
jor|to select the driver or
passenger side mirror. The indicator light
will illuminate.
2. Press the arrows on the control pad to move the mirror in the desired direction.
3. Adjust each outside mirror so that a little of the vehicle and the area behind it can
be seen.
4. Press
jor|again to deselect the
mirror. Turn Signal Indicator
If equipped, the mirror has turn signal
indicator lights, which flash in the direction
of the turn or lane change.
Task Lighting
If equipped, task lighting projects light from
the outside mirrors to the sides of the
vehicle. See
Task Lighting 0144.
Puddle Lamps
If equipped, puddle lamps project light from
the bottom of the mirror to the area of
ground below the driver and passenger
doors. See Entry Lighting 0146 and
Exit Lighting 0146.
Memory Mirrors
The vehicle may have memory mirrors. See
Memory Seats 053.
Lane Change Alert (LCA)
The vehicle may have LCA. See Lane Change
Alert (LCA) 0261.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
Lighting 139
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . . . . . . . . . . 139
Exterior Lamps Off Reminder . . . . . . . . . . . 141
Headlamp High/Low-Beam Changer . . . . 141
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Daytime Running Lamps (DRL) . . . . . . . . . 141
Automatic Headlamp System . . . . . . . . . . 141
Hazard Warning Flashers . . . . . . . . . . . . . . 142
Turn and Lane-Change Signals . . . . . . . . . 143
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Task Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Auxiliary Roof-Mounted Lamp . . . . . . . . . 144
Exterior Cargo Lamps . . . . . . . . . . . . . . . . . . 144
Interior Lighting
Instrument Panel IlluminationControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Dome Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Reading Lamps . . . . . . . . . . . . . . . . . . . . . . . . 146
Lighting Features
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 146
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Battery Load Management . . . . . . . . . . . . 147
Battery Power Protection . . . . . . . . . . . . . . 147
Exterior Lighting Battery Saver . . . . . . . . 147
Exterior Lighting
Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the steering
wheel.
O: Turns off the automatic headlamps and
Daytime Running Lamps (DRL). Turn the
headlamp control to
Oagain to turn the
automatic headlamps or DRL back on.
For vehicles first sold in Canada, off will only
work when the vehicle is in P (Park). AUTO :
Automatically turns on the
headlamps, parking lamps, taillamps,
instrument panel lights, roof marker lamps
(if equipped), front/rear sidemarker lamps,
and license plate lamps.
;: Turns on the parking lamps including
all lamps, except the headlamps and fog
lamps, if equipped.
For some trim levels and series of trucks
first sold in Canada, the headlamps may
turn on with the parking lamps.
2: Turns on the headlamps together with
the parking lamps, taillamps, instrument
panel lights, roof marker lamps (if
equipped), front/rear sidemarker lamps, and
license plate lamps.
When the headlamps are turned on while
the vehicle is on, the headlamps turn off
automatically 10 minutes after the ignition
is turned off. When the headlamps are
turned on while the vehicle is off, the
headlamps will stay on for 10 minutes
before turning off to prevent the battery
from being drained. Turn the headlamp
control off and then back to the headlamp
on position to make the headlamps stay on

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
144 Lighting
Some localities have laws that require the
headlamps to be on with the fog lamps.
Task Lighting
If equipped, task lighting projects light from
the outside mirrors away from the vehicle.
While the vehicle is parked, press
Kto
select one of the following options:
.Left and Right Task Lights Illuminated
.Left Task Light Illuminated
.Right Task Light Illuminated
.Left and Right Task Lights Off
If the vehicle leaves a parked position, the
lights will immediately turn off. If the vehicle is off, the lights will stay on
for approximately 10 minutes.
If any Task lights are on, if the button has
not been pressed after approximately
5 seconds, pressing it again will turn off all
Task Lights.
Auxiliary Roof-Mounted Lamp
If equipped, this button includes wiring
provisions for a dealer or a qualified service
center to install an auxiliary roof lamp.
For information on roof-mounted emergency
lamp installation, see www.gmupfitter.com
or contact your dealer.
If the vehicle has this button, the vehicle
may have the snow plow prep package. See
Add-On Electrical Equipment
0297.
Exterior Cargo Lamps
The cargo lamps provide more light in the
cargo area or on the sides of the vehicle,
if needed. The lamps inside the pickup box,
in the tailgate handle, for the hitch, and/or
the cargo mirror lamps also turn on,
if equipped.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/18/22
148 Infotainment System
Infotainment System
Introduction
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Steering Wheel Controls . . . . . . . . . . . . . . . 151
Using the System . . . . . . . . . . . . . . . . . . . . . . 152
Software Updates . . . . . . . . . . . . . . . . . . . . . . 154
Radio
AM-FM Radio . . . . . . . . . . . . . . . . . . . . . . . . . . 154
HD Radio Technology . . . . . . . . . . . . . . . . . . 156
Radio Data System (RDS) . . . . . . . . . . . . . . 157
Satellite Radio . . . . . . . . . . . . . . . . . . . . . . . . . 157
Radio Reception . . . . . . . . . . . . . . . . . . . . . . . . 157
Fixed Mast Antenna . . . . . . . . . . . . . . . . . . . 158
Multi-Band Antenna . . . . . . . . . . . . . . . . . . . 158
Audio Players
Avoiding Untrusted Media Devices . . . . . 158
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Auxiliary Jack . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Bluetooth Audio . . . . . . . . . . . . . . . . . . . . . . . 160
Navigation
Using the Navigation System . . . . . . . . . 160
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Navigation Symbols . . . . . . . . . . . . . . . . . . . 164
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Global Positioning System (GPS) . . . . . . . 170
Vehicle Positioning . . . . . . . . . . . . . . . . . . . . 170Problems with Route Guidance . . . . . . . . 170
If the System Needs Service . . . . . . . . . . . 171
Map Data Updates . . . . . . . . . . . . . . . . . . . . . 171
Database Coverage Explanations . . . . . . . 171
Voice Recognition
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . 171
Phone
Bluetooth (Overview) . . . . . . . . . . . . . . . . . . 176
Bluetooth (Pairing and Using a
Phone) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Apple CarPlay and Android Auto . . . . . . . 181
Settings
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Trademarks and License Agreements
Trademarks and License Agreements . . . . . . . . . . . . . . . . . . . . . . . . . 189
Introduction
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 features when driving.
These features may gray out when they are
unavailable. Many infotainment features are
also available through the instrument cluster
and steering wheel controls.
Before driving:
.Become familiar with the operation,
center stack controls, steering wheel
controls, and infotainment display.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/18/22
152 Infotainment System
Using the System
Audio
Touch the Audio icon to display the active
audio source page. Examples of available
sources may include AM, FM, SXM (if
equipped), USB, AUX, and Bluetooth.
Phone
Touch the Phone icon to display the Phone
main page. SeeBluetooth (Pairing and Using
a Phone) 0177 or
Bluetooth (Overview) 0176.
Nav
If equipped, touch the Nav icon to display
the navigation map. See Using the
Navigation System 0160.
Users
If equipped, touch the Users icon to sign in
or create a new user profile, and follow the
on-screen instructions.
Only four user profiles can be active at one
time in the vehicle. It may be necessary to
remove a profile from the menu before
creating or signing into an existing profile.
The removed profile can be logged into at a
later time.
Settings
Touch the Settings icon to display the
Settings menu. See Settings0182.
Apple CarPlay
Touch the Apple CarPlay icon to activate
Apple CarPlay (if equipped) after a
supported device is connected. See Apple
CarPlay and Android Auto 0181.
Android Auto
Touch the Android Auto icon to activate
Android Auto (if equipped) after a supported
device is connected. See Apple CarPlay and
Android Auto 0181.
Apps
If equipped, in-vehicle apps are available for
download. Touch the Apps icon on the
Home Page to begin.
Downloading and using in-vehicle apps
requires Internet connectivity which can be
accessed with a data plan through the
vehicle’s built-in 4G LTE Wi-Fi hotspot,
if equipped, or a compatible mobile device
hotspot. On most mobile devices, activation
of the Wi-Fi hotspot is in the device’s Settings menu under Mobile Network
Sharing, Personal Hotspot, Mobile Hotspot,
or similar.
Availability of apps and connectivity varies
by vehicle, conditions, and location. Data
plan rates apply. Features are subject to
change. For more information, see
www.my.gmc.com/learn.
OnStar Services
If equipped, touch the OnStar Services icon
to display the OnStar Services and Account
pages. See
OnStar Overview 0408.
Camera
If equipped, touch the Camera icon to access
the camera application. See Assistance
Systems for Parking or Backing 0248.
Shortcut Tray
The shortcut tray is near the bottom of the
display. It shows up to four applications.
Infotainment Display Features
Infotainment display features show on the
display when available. When a feature is
unavailable, it may gray out. When a
feature is touched, it may highlight.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/18/22
154 Infotainment System
Fling or swipe is used to scroll through a
list, pan the map, or change page views. Do
this by placing a finger on the display then
moving it rapidly up and down or right
and left.
Spread
Spread is used to zoom in on a map, certain
images, or a web page. Place finger and
thumb together on the display, then move
them apart.Pinch
Pinch is used to zoom out on a map, certain
images, or a web page. Place finger and
thumb apart on the display, then move
them together.
Cleaning High Gloss Surfaces and Vehicle
Information and Radio Displays
For vehicles with high gloss surfaces or
vehicle displays, use a microfiber cloth to
wipe surfaces. Before wiping the surface
with the microfiber cloth, use a soft bristle
brush to remove dirt that could scratch the
surface. Then use the microfiber cloth by
gently rubbing to clean. Never use window
cleaners or solvents. Periodically hand wash
the microfiber cloth separately, using mild
soap. Do not use bleach or fabric softener.
Rinse thoroughly and air dry before
next use.
Software Updates
Over-the-Air Software Updates
If equipped, see
“Updates”underSettings
0 182 for details on software updates.
Radio
AM-FM Radio
Playing the Radio
From the Home Page, touch the Audio icon
to display the active audio source page.
Choose from the three most recently used
sources listed at the left side of the display
or touch the More icon to display a list of
available sources. Examples of available
sources are AM, FM, SXM (if equipped),
MyMedia (if available), USB, AUX (if
equipped), and Bluetooth.
Infotainment System Sound Menu
From any of the audio source main pages,
touch Sound to display the following:
Equalizer : Touch to adjust Bass, Midrange,
Treble, and Surround (if equipped) using the
options on the infotainment display.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/18/22
Infotainment System 159
Use the following when playing an active
USB source:
r:Touch to play the current media source.
j: Touch to pause playback of the current
media source.
g:
.Press to seek to the beginning of the
current or previous track.
.Press and hold to reverse quickly through
playback. Release to return to playing
speed. Elapsed time displays.
d:
.Press to seek to the next track.
.Press and hold to advance quickly
through playback. Release to return to
playing speed. Elapsed time displays.
Shuffle : Touch the shuffle icon to play
music in random order.
USB Browse Menu
Touch anywhere between the top and
bottom menus or touch the Browse option
on the infotainment display to view the
Browse menu and the following options are
displayed near the bottom of the display: Playlists:
1. Touch to view the playlists stored on the USB.
2. Touch a playlist to view the list of all songs in that playlist.
3. Touch a song from the list to begin playback.
Supported Playlist extensions are m3u, pls,
and wpl.
Artists: 1. Touch to view the list of artists stored on the USB.
2. Touch an artist name to view a list of all albums by the artist.
3. To select a song, touch All Songs or touch an album and then select a song
from the list.
Albums: 1. Touch to view the albums on the USB.
2. Touch the album to view a list of all songs on the album.
3. Touch a song from the list to begin playback. Songs:
1. Touch to display a list of all songs on the USB.
2. To begin playback, touch a song from the list.
Auxiliary Jack
This vehicle may have an auxiliary input
jack. Possible auxiliary audio sources include:
.Laptop computer
.Audio music player
This jack is not an audio output. Do not
plug headphones into the auxiliary input
jack. Set up an auxiliary device while the
vehicle is in P (Park).
Connect a 3.5 mm (1/8 in) cable from the
auxiliary device to the auxiliary input jack.
When a device is connected, the system can
play audio from the device over the vehicle
speakers.
If an auxiliary device has already been
connected, but a different source is currently
active, touch More and then touch AUX to
make the source active.
Shuffle and Browse are not available in the
AUX source menu.

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/9/22
Driving and Operating 227
Warning (Continued)
.Before starting the vehicle, unplug the
cord, reattach the cover to the plug,
and securely fasten the cord. Keep the
cord away from any moving parts.
5. Before starting the engine, be sure to unplug and store the cord.
The length of time the heater should remain
plugged in depends on several factors. Ask a
dealer in the area where you will be parking
the vehicle for the best advice on this.
Retained Accessory Power (RAP)
When the vehicle 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 vehicle is
on or in accessory mode:
.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
Shifting Into Park
{Warning
Parking on grades with poor traction such
as ice, snow, mud, or gravel may cause
the vehicle to unintentionally move and
could result in injury, death, and/or
vehicle damage. If equipped with
four-wheel drive, use AUTO or 4 (HI) to
provide additional traction. Be sure to
apply the parking brake. See Electric
Parking Brake 0239 and
Four-Wheel Drive 0234.
{Warning
It can be dangerous to get out of the
vehicle if the shift lever is not fully in
P (Park) with the parking brake firmly set.
The vehicle can roll. If you have left the
engine running, the vehicle can move
suddenly. You or others could be injured.
To be sure the vehicle will not move,
even when you are on fairly level ground,
(Continued)
Warning (Continued)
use the steps that follow. With
four-wheel drive, if the transfer case is in
N (Neutral), the vehicle will be free to
roll, even if the shift lever is in P (Park).
Be sure the transfer case is in a drive
gear. If towing a trailer, seeDriving
Characteristics and Towing Tips 0268.
1. Hold the brake pedal down, then set the parking brake. See Electric Parking Brake
0 239.
2. Move the shift lever into the P (Park) position by pulling the shift lever toward
you and moving it up as far as it will go.
3. Be sure the transfer case (if equipped) is in a drive gear –not in N (Neutral).
4. Turn the ignition off. For Key Access, push the ignition key in, towards the
steering column and then turn the
ignition off.
5. For Key Access, remove the key and take it with you. If you can leave the vehicle
with the ignition key in your hand, the
vehicle is in P (Park).
For Keyless Access, take the remote key
with you.