The change, which took effect September 30th, 2025, means the GM App Store is now permanently closed for these vehicles. Apps that were previously downloaded no longer receive support. Crucially, if an owner deletes an app or performs a factory reset on the system, that application is gone for good. Attempts to reinstall it will fail. This is not a malfunction requiring a service visit. Rather, it’s a definitive sunsetting of the service.
Yet another reason to not trust GM with their commitment to do anything other than attempt to extract subscription dollars from people who buy their vehicles. They don't care about their owners' experience, they just want the money.