Mine goes silent about every 10th time I start it. Nothing works at all, the radio or the phone but the screen lights up normally. If I shut the truck off for at least 3 minutes and restart it everything comes back up and works perfectly. It’s annoying for sure.
If your truck is a 2023, the update listed above should fix it.
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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: A. 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 B. 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 C. 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 D. 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 updat
