clock reset GMC SIERRA 2023 Owners Manual

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/18/22
Infotainment System 183
3. Touch to select the desired featuresetting.
4. Touch the options on the infotainment display to disable or enable a feature.
5. Touch
zto go to the top level of the
Settings menu.
System
The menu may contain the following:
Time / Date
Allows setting of the clock.
Language
Sets the display language used on the
infotainment display. It may also use the
selected language for voice recognition and
audio feedback.
Phones
Allows connecting to a different cell phone
or mobile device source, disconnect a cell
phone or media device, or delete a cell
phone or media device.
Wi-Fi Networks
Shows connected and available Wi-Fi
networks. If a 4G LTE data package is not active on the
vehicle, the infotainment system can be
connected to an external protected Wi-Fi
network, such as a mobile device or home
hotspot, to utilize connected services.
Wi-Fi Hotspot
Allows adjustment of different Wi-Fi
features.
Privacy
Allows adjustment of the infotainment
privacy settings.
Display
Allows adjustment of the infotainment
display.
Sounds
Allows adjustment of the infotainment
system sounds.
Voice
Allows adjustment of the infotainment voice
recognition features.
Favorites
Allows adjustment of the infotainment
favorite settings.
Updates
If equipped, the vehicle can download and
install select software updates over a
wireless connection. The system will prompt
for certain updates to be downloaded and
installed. There is also an option to check
for updates manually.
To manually check for updates, touch
Settings on the Home Page and select the
System tab. Go to the Vehicle Software
section and touch Updates. Follow the
on-screen prompts. The steps to check for,
download, and install updates may vary by
vehicle.
The vehicle can be used normally during the
software download. Once the download is
complete, there may be a prompt to accept
the installation of the update upon the next
ignition cycle or the next time the vehicle is
shifted into P (Park). For most updates, the
vehicle will be disabled and cannot be driven
during the installation. The system will
deliver messages indicating success or error
during and after the download and
installation processes.
Downloading Over-the-Air vehicle software
updates requires Internet connectivity, which
can be accessed through the vehicle’s
built-in 4G LTE connection, if equipped and

GMC Sierra/Sierra Denali 2500 HD/3500 HD Owner Manual (GMNA-
Localizing-U.S./Canada-16504257) - 2023 - CRC - 5/18/22
Vehicle Care 325
Liftgate
Headlamp Aiming
Front Headlamp Aiming
Headlamp aim has been preset and should
need no further adjustment.
If the vehicle is damaged in a crash, the
headlamp aim may be affected.
If adjustment to the headlamps is necessary,
see your dealer.
Bulb Replacement
For the proper type of replacement bulbs,
or any bulb changing procedure not listed in
this section, contact your dealer.
Caution
Do not replace incandescent bulbs with
aftermarket LED replacement bulbs. This
can cause damage to the vehicle electrical
system.
Halogen Bulbs
{Warning
Halogen bulbs have pressurized gas inside
and can burst if you drop or scratch the
bulb. You or others could be injured. Be
sure to read and follow the instructions
on the bulb package.
LED Lighting
This vehicle has several LED lamps. For
replacement of any LED lighting assembly,
contact your dealer.
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps
Base Level Headlamp Assembly
1. Turn Signal Lamps
Headlamp Replacement
See your dealer for headlamp replacement.
Turn Signal Lamp Replacement
Base Level1. Open the hood.
2. Turn the bulb socket counterclockwise to remove it from the headlamp assembly
and pull it straight out.