2022 - 2025 Silverado / Sierra 1500
2024 - 2025 Silverado / Sierra 2500 / 3500 / HD
2022 - 2024 Tahoe / Suburban / Yukon / Yukon XL
Y175 Most Notable Improvements:
Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features.
Most notable improvements contained in this release may include:
Audio:
The audio might cut out for a couple of seconds
Camera:
The front camera button may cause a black screen that requires a 10-minute sleep cycle to recover
Connectivity:
4G connection is dropping
Navigation:
After searching for a location in the embedded Google Maps app the customer might see a "Waiting for location..." message instead of pulling up directions
OnStar:
When the Hood Open chime is playing, there is no OnStar audio
Phone:
There may be a crackling noise while on a Bluetooth or third-party app call
While on a phone call the person on the other end might hear an echo
When trying to pair a phone the message "Device can't be added while driving" may come up even with vehicle in Park
Radio:
When playing music from a USB drive there may be no meta data shown in the audio app and the cluster will show "No Content”
In Guest mode it might take a long time to play USB music, showing a "No media available" message before getting data
Stability:
The radio may reset
SXM:
When changing Favorites with the steering wheel switch, the new Favorite button may not highlight. If going to another page of Favorites, the page may not change. In both cases the station does change.
Voice Recognition:
Google Assistant may not work for an ignition cycle
Export only:
If a DAB announcement comes in while in CarPlay, the CarPlay audio does not automatically resume playing after the announcement is done
Y172 Most Notable Improvements:
Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features.
Most notable improvements contained in this release may include:
Audio:
Audio app may crash and change source on own
Audio loss when changing drive mode
No audio after phone call
No audio and audio app blank
No audio and volume knob doesn't respond
No audio on start
No turn signals audio
Start up audio delayed
With an Android phone paired there is no audio
Cluster:
Album Art flashes on XM station change
When the radio is off there may be a Power icon showing on the audio page. "Audio Off" to let the driver know the radio is off is missing
Connectivity:
4G connection is dropping
Display:
Audio card crashes and will not recover
Audio card may freeze
Black Screen
Black Screen after accepting TCPS
Black screen when launching Trailering App
Black screen when switching profile during a call on a password lock screen
Blank screen after accepting TCPS
Card view Clock app in wrong position on ignition start
Card view disappears after changing profile
Card view is blank when profile creation interrupted
Home screen glitching
Loading message for Maps and audio cards
Maps and Trailering might be missing from the right-side apps view
The display may look like a picture negative when switched to day mode
The Home screen may not have any app icons
HVAC:
The blower speed turns down at startup by itself
Navigation:
Google Maps blinking
Icons incorrect
Location changing randomly
Maps blank in porch view
Maps freezing in card view
Navigation page will not load on cluster
Turn-By-Turn may not work
Phone:
Android Auto screen is cut off and the touch display does not work
Answer button on the screen does not work
Apple Music skipping songs
CarPlay will not connect or is slow to connect
Customer can't open the CarPlay app through the home screen icon
During a call the audio may stay on the handset instead of being heard through the vehicle
Echo during phone call
The CarPlay screen might flicker
Profiles:
Correct password not working when changing from driver profile to new profile
No incorrect password pop-up when entering incorrect password
Settings app and new profile do not respond after switching to new profile
Stuck on loading message on profile change
Programming:
Customer may see a message to "restart the system to complete the update”
Download stuck at 67%
Flash/Flicker when selecting x button or back button on faceplate
The OTA update may fail
The USB update may fail
Radio:
Keyboard will not come up after change language button is pressed
The favorites button on the steering wheel controls may not work
SXM:
Customer sees "No Signal" message
Customer sees "XM Loading" message
XM audio pausing for a second when an icon is pressed on any screen
Trailing App:
Trailer app not launching from card view for first time user
White screen displays after clicking done in trailering-towing assist screen
Your trailering profiles may not sync with the cloud
USB:
USB data not functioning
Voice Recognition:
Alexa not stopping on SWC end button press
Google Assistant asks for device when commanded to play music
Google Assistant extra-long delayed response time
No Voice Recognition functions
Stability:
Card View takes a long time to load apps
Radio doesn't turn on
Radio Stays on for a minute after cancelling RAP
Reboot
System freezes
When changing Trailer Maintenance data to 100% the system may crash
When exiting camera, the app tray and status bar may disappear, and the transition is not smooth
Non-GMNA fixes:
The radio may switch from DAB to FM after an announcement.
Y171 Most Notable Improvements
Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features.
Most notable improvements contained in this release may include:
Customer may have intermittent drops in audio.
When starting the vehicle, the blower motor speed may drop unexpectedly.
A customer may not be able to save Favorites or keep a phone paired to the vehicle because it is in the Guest profile with no way to get to the Driver profile.
CarPlay might play through the phone instead of the vehicle.
There may be no radio audio after a phone call ends.
The customer might have no radio audio.
Text message playback might play through the phone instead of the vehicle.
In the trailering app the brake gain does not save.
The customer might have a black screen when using Hulu.
The HUD might show audio metadata for too short of a time, or not at all, when changing stations.
Google play security patches.
Y169 Most Notable Improvements
Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features.
Volume might ramp up to full after using the SWC to increase volume
The system displays "Park Assist with Braking" instead of "Park Assist"
Customer might not be able to hear Google Assistant When there is an incoming call the notification comes up at the same time as the incoming call screen
When changing PTM from Off to On the setting does not apply
The Wi-Fi Hotspot screen will not load
SXM shows the wrong channel
After cycling the speed limit recognition option, if you switch display mode the message will come up "menu unavailable while driving"
No audio with radio volume set to about 40%
If the system is locked with a PIN the cluster maybe blank or show "Application Unavailable"
Customer might see an "Android Auto Could Not Connect" message even though there is no concern
The trailering app may show the wrong make of truck
When pressing the OK button on the "Focus your attention on driving" screen the screen may come back up
When switch from an AM favorite to the SXM Welcome screen the favorite may stay highlighted
When turning the vehicle off and opening the door there could be a Bluetooth disconnected screen that comes up with the "Cancel" option truncated
If the "Back" button is pressed twice in a row it might not take you back to the expected page
SXM favorites greyed out and unavailable
Vehicle might report an unknown fuel type
E-Ray while using electric power might not be updating the dyno pages
Not all DAB Announcements Categories are available
After switching Users or doing an ignition cycle the Previous Trip data may reset
Bluetooth and Android Auto may not automatically connect
HUD might return to default pages after an ignition cycle
"Hummer Improving text layout when switching from Terrain to Offroad drive mode"
Stability improvement
While setting up trailer tire pressure sensors the wrong screen might show
Wi-Fi icon may be greyed out
When changing the language to Arabic the back button did not change
Changing the Startup or Shutdown volume is inconsistent
During an OTA the radio could continue to retry causing a battery drain
When switching to the Driver profile the Android Auto may disconnect
When saving an SXM favorite there may not be a short title
SXM may not show metadata
Norse translation for “Cut/Copy/Paste"
During an OTA the "Install" button may have to be pressed twice
If the customer cancels out of an OTA, the system might not go back to the expected screen
"Hummer Translation update for preconditioning screen"
"Hummer Offroad app may crash"
"Hummer When going into the Pitch and Roll page the screen might go black"
No SXM audio
"Hummer The OnStar Emergency calling screen may not show during certain emergency events"
"E-Ray The value shown on the dyno slider might not match the data in the graphs"
While using Alexa during the quick tour the right side of the screen may show "speaking"
When the data plan expires for the customer, there is no notice when trying to use Alexa
When the trailer tire temperature is high the trailer tire pressure screen on the cluster will flash frequently
When trying to use Google Voice Typing the screen may go back to the previous page
Improving scroll bar graphics in OTA screen
Alexa may not work for playing Spotify music
The customer was able to start using Alexa while in an OnStar call
When trying to add or remove Teen Driver keys the app may crash
CarPlay may get stuck on the incoming call screen
While in CarPlay if you try to use Google Assistant to switch to SXM the screen may go black
When the BCM loses connection with the trailer tire pressure sensors the values for the tires show as dashes
Translation and non-NA fixes
Not all DAB Announcements Categories are available
When changing the language to Arabic the back button did not change
Norse translation for Cut/Copy/Paste"
Y168 Most Notable Improvements:
Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features.
Most notable improvements contained in this release may include:
Radio
When trying to use Google Assistant with Android Auto and in offline mode, the card view may come up for a second.
When pressing the "View terms & data settings" button the keyboard will flash.
When switching languages, a "switch to trailer" message might appear.
Volume may be stuck on max.
Tow Haul reminder may show up more than once during an ignition cycle.
The SXM Subscribe button is not greyed out while driving.
The trailering app may show a camera option even if the trailer has no camera.
The Off-road app may be in day mode while the vehicle is in night mode.
The customer is unable to open the Camera app in Accessory mode.
The customer may see an "Add New User" pop-up.
The customer might see a "Cannot Schedule Update" message come up then disappear.
The Engine Shift setting may flicker.
The keyboard may be stuck on the screen when leaving the account page.
The Maps card view might be missing the button to expand to full screen.
Text may not change to night mode properly.
The "Back" button may not work from the Trusted Device page.
The “Back” button may not work after ending a call.
SXM Favorites and On Demand unavailable.
SXM may show "Loading" and have no audio.
SXM On Demand content may not be displayed.
If the customer is trying to move a favorite channel while switching sources at the same time, the audio app may crash.
If voice recognition is launched while on the password screen, the screen will close.
If you try to enter Drive Mode while the vehicle is off, the app will not launch.
In the Trailering app the tire sensor setup may not work.
Intermittently there may be no audio from one or multiple speakers.
On the Recent page there may be a keyboard shown.
If the Back button is pressed during a call the call timer may disappear from the status bar.
Dyno page values do not match graph.
If the audio is muted, pressing the Previous or Next buttons will unmute.
After switching from a new user to Driver on the Auto-lock user page the back button may not work.
Buckle to Drive is available for Fleet Driver.
CarPlay may show the message "pair a phone" when a phone is already paired.
Channel tiles will show the channel name instead of the short description.
Chime volume changes may not work properly.
Customer may not be able to use the SWC Favorite switch for an ignition cycle.
Customer may see a message to pair a phone to make a call, even though a phone is connected.
Favorites may not work.
A message stating "Cannot manage favorites while driving" may show a second time without driver input.
"Trailer Brake Gain Not Recalled" message erroneously displayed.
“Auto unlock User Profile” may get turned on automatically after entering the wrong password and backing out of the page.
After a phone call ends there may be no audio from the radio.
Phone
When tapping the Phone app in the app tray, the tray might disappear.
When on a Teams call using Android Auto there may not be a notification of an incoming call.
When connected to Wired Android Auto the Phone screen may not have the "Switch Phone" option.
There may not be a connection failure message if Bluetooth is turned off on the customers device while the Wireless Android Auto connection is being established.
During an OnStar emergency call if you turn TTY off then back on and press the call timer the screen may go black.
During an OnStar emergency call the keyboard might show up if swiping on a notification.
IPC
When switching from Google Maps to CarPlay the cluster Navigation page may not indicate the change.
When there is an inbound call from an unknown number, the call timer on the cluster may flicker.
OTA
While checking for available over the air update, if there is an error the back button may take you to the wrong screen.
During an Over the air update, if the customer presses the reschedule button they may get a black screen.
Translation
Arabic formatting change for "Proper Use Warning" message.
Arabic formatting change for Teen Driver.
Arabic translation issue for OnStar call timer.
Arabic translation issue for road names and remaining distance.
Korean translation issue of "Files" in storage screen.
Norsk translation issue for "Device is starting" message.
Norsk translation issue for "Feature not available while driving" message.
Norsk translation issue for "Field cannot be blank" message.
Norsk translation issue for "Tap here to authorize this feature" in the Auto-Unlock User Profile screen.
Norsk translation issue for Google voice typing.
Norsk translation issue for WiFi password changes.
Y167 Most Notable Improvements
Important: Improvements will vary by model, build configuration, system, and sales region. Not all vehicles have all features.
Most notable improvements contained in this release may include:
Radio:
AM or FM station stuck for an ignition cycle
No rear view camera
After performing a factory reset the physical Home button might not work
Intermittent XM unavailable message
Intermittent no audio at startup
The volume bar pop-up screen might not show when adjusting the volume
Voice recognition might not work
When trying to sign in with a GM account the sign in through Mobil App does not work
Latitude gauge goes up and down
Tune knob might not change channels
Customer is unable to add XM favorites
Voice volumes will not change, only audio volume does
The Now Playing screen might not show the station number of the channel playing
When changing Favorite pages, the > button does not highlight when pressed
When trying to log in with a MyGMC account, there is no error if the email format is incorrect
In the towing app the wrong vehicle type is shown
Intermittently there will be no audio
Buckle to Drive might always be on
Intermittent rebooting with Device is Starting message
XM favorite channels jump when using the SWC
Improve readability of MyBrand application
XM can only play one channel, the rest show Unavailable in the browse list
XM favorites are greyed out
Invisible Trailer View Not Functioning
When adding a new user there may be multiple blank screen
Phone:
CarPlay might stop after ending a call
When switching audio from Bluetooth to USB the Bluetooth audio might continue
The Add Phone button might not work
When making a call, the Search Contacts screen might come up instead of the keypad
Android Auto screen slow at launch
The First to Connect setting might not save after an ignition cycle
CarPlay would not launch
Contacts still show after clearing phone numbers
After shutting the vehicle off the Handset button for moving an active call is not highlighted
Phone calls might have audio echo on the other end of the call (not in vehicle)
Phone projection may not connect
CarPlay might be slow to launch
IPC:
The incorrect language might show on the DIC
Dyno Page graph not updating while idling
V-mode shown in Drive mode of non-Cadillac vehicles
In the Drive Mode pages there is Z-mode when it shouldn't be
The sound for the turn signals is out of sync with the cluster indicators
Intermittently "Turn your vehicle on" shows on ICS even with vehicle on
OTA:
An Over-The-Air update might take a power cycle to complete
There is a black screen if the back button is pressed while performing an update
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