2025 c8 got it the updated yesterday as well no hiccups was done like 10min

 

Any idea what it updated

 

here is what I found in the app , it’s not really very specific.

 

Thanks. Glad they provided such detailed notes 😀

 

Does anyone know why our cars with all of their computers and software don't tell us about SW updates? I don't find the app useful so I never open it. I only found out about this update via the Forum.

 

The car should tell you also. How else would anyone install the update if the car doesn't say there is one?

 

Started my 25 Stingray this morning and got the update notice. I ran the update while I went into the grocery store. Came out 20 minutes later and it had completed. Drove home. No issues.

 

Most report getting a notice if an update is available. The notice appears in the car on the infotainment screen. There are (or at least for 2021) two kinds of notice. To understand them, your first need to understand the steps. The first, is that the update is downloaded to the car, but NOT installed. The second step is to install the update. On mine there are settings the will allow the first step to happen automatically, to download the update. Once downloaded, at least in the past, the update would not install unless the operator give permission for the installation.

Ok, so the two types of notices - if you have prevented automatic downloading to the car by the settings (on mine anyway), you will get a notice that an update is ready to be downloaded. But, if you have allowed updates to be downloaded, you will (or should) get a notice that an update is ready to install. See the difference?

Its my understanding the updates should not install without owner permission. However, I have at least once received a strange notice about an update failure on my infotainment display, when I was never notified of an update and did not approve installation. Don't know what that was about.

There is also wording in the Owner's Manual about updates being delivered without notice.

Anyway, there is also a way on my 2021 to review the update history from the infotainment system display, and also I can "check" for availability of updates. This will check for updates that may or may not have been downloaded to the car but not installed.


Edit: to further confuse things, there are also notices of an update to one or more of the Apps that you may have in your infotainment system. These are different from your system updates, and should not affect any of the vehicle functions.

 

Ok so what is exactly is in the software update (what is it changing exactly)? Where are the release notes?

 

Which update? There are examples of the description for certain updates above in this thread. For new updates, I get the description with the notification.

On mine I can review the update history and see the descriptions - they are often cryptic. That's as good as it gets. I have attached examples from my DIC on my 2021. You just have sit in the car and scroll through the menus to find all this stuff. If you have a 2024-2025 its might be different - but same approach - scroll through your options to lean how it works.

Attachmnent one shows the menus with System selected. Two lines of interest are About, and Updates. Clicking updates will allow you to check for available updates. Clicking About will allow you to review your update history. And then I have posted two examples of "Release Details". I do not know if you can find this on the phone app - I never fool with that phone app.

 

Yep got a few with my 2020. None on my 2024 buy when I went in for my 1 year service tech had one noted he did.

Because of folks reporting issues with car staying on and draining battery my MO is:​​​​​

• initiate download
• come back 1 hour later
• if it did not take wait till I am at dealer and tech do it via ODD port

 

Just updated my 2025 Z06! Super easy and only took about 6 minutes.

 

^^^^
Yep super easy when it works! When it doesn't can prevent the battery saving circuits to activate and next morning, battery drained and car won't start. See my MO in post above yours!

 

my issue exactly. Unless there’s a specific reason to update, don’t. If you decide to update anyway, wait until the update has at least one decimal, preferably two eg version 8.3.1

 

I would like GM to over-the-air update the audio equalizer. The current 3-band (think Radio Shack) is laughable. Update it to a more functional 8-12 band equalizer. It would improve the audio quality immensely.

 

Its a lack of respect GM issuing updates without real info as to what they are. I guess they assume people do it to their phones all the time then its no biggie. We are just mindless consumers.

I have not and plan not to update. My fix for draining battery issues when doing OTA updates is... Not doing OTA updates. If there is something major then I'll take it in to get programmed while getting the oil or something else worked on. I like others do hope there was a way to program the google garbage out, but I have no doubt GM is making money off of it. One of the worse corrupt, sued over privacy company is the one GM wants.

 

Had mine done for my '23 last week, no issues afterward.

 

GM Update N25-F172AE updates the CGM Central Gateway Module

Attached is an update notice posted on the NTSB website

 

I've gotten one so far