Software Update Question
Thread Starter
Safety Car
Joined: Jan 2005
Posts: 4,500
Likes: 1,449
From: Pittsburgh PA
2025 C8 Stingray of the Year Finalist - Unmodified
2024 C8 of the Year Finalist - Unmodified
Software Update Question
Received this update on my '25 Stingray: 85759705.mnf SIHM23B-00383.01 a few days ago. Recently had the battery replaced under warranty. No issues with the car, just curious what it was for.
Race Director
Joined: Mar 2010
Posts: 15,996
Likes: 824
We want to help provide support in an effort to address your questions regarding the software update you received. To help us do so, please send us an email with these details to socialmedia@gm.com. With that, be sure you include "Scruff Vette Corvette Forum" in the subject line of your outreach so we can get started. Our team will keep our eyes peeled for your message.
Safety Car
Joined: Dec 2009
Posts: 4,298
Likes: 3,198
From: Oro Valley Arizona
Still There
The update is downloaded to your car without you knowing it has been done. Done in the background using the car's native LTE. Only then do you get the notice that you can install it. It will remain active for 30 ignition cycles (on/off), then it will be deleted from the car's memory. The descriptions are usually vague including targeting issues described using 'various' and 'misc'. Depending on how long it has been, the update might still be installable.
From the info screen: Home>Settings>System>Vehicle Software>Updates
This will display both installed and pending updates. Caveat, this is for my 2022. I'd guess 2025 is similar certainly enough so to get headed to the general vicinity.
From the info screen: Home>Settings>System>Vehicle Software>Updates
This will display both installed and pending updates. Caveat, this is for my 2022. I'd guess 2025 is similar certainly enough so to get headed to the general vicinity.
Race Director
Joined: Mar 2007
Posts: 11,368
Likes: 8,526
The update is downloaded to your car without you knowing it has been done. Done in the background using the car's native LTE. Only then do you get the notice that you can install it. It will remain active for 30 ignition cycles (on/off), then it will be deleted from the car's memory. The descriptions are usually vague including targeting issues described using 'various' and 'misc'. Depending on how long it has been, the update might still be installable.
From the info screen: Home>Settings>System>Vehicle Software>Updates
This will display both installed and pending updates. Caveat, this is for my 2022. I'd guess 2025 is similar certainly enough so to get headed to the general vicinity.
From the info screen: Home>Settings>System>Vehicle Software>Updates
This will display both installed and pending updates. Caveat, this is for my 2022. I'd guess 2025 is similar certainly enough so to get headed to the general vicinity.
Thread Starter
Safety Car
Joined: Jan 2005
Posts: 4,500
Likes: 1,449
From: Pittsburgh PA
2025 C8 Stingray of the Year Finalist - Unmodified
2024 C8 of the Year Finalist - Unmodified
Racer
Joined: May 2024
Posts: 397
Likes: 240
From: Greenville, SC
Thread Starter
Safety Car
Joined: Jan 2005
Posts: 4,500
Likes: 1,449
From: Pittsburgh PA
2025 C8 Stingray of the Year Finalist - Unmodified
2024 C8 of the Year Finalist - Unmodified
Wow, I never had that problem with the radio. Still have no answer what it addresses. Chevrolet Customer Care says they don't have access to the info.
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Safety Car
Joined: Dec 2009
Posts: 4,298
Likes: 3,198
From: Oro Valley Arizona
Easy does it......
The update will download using the car's LTE. It does not require Wi Fi. It just happens poof it's there. Car says I've got it onboard and ready to install. Then you choose to install now, later, or not at all.
Last edited by papillion; Mar 16, 2026 at 03:59 PM.
Melting Slicks
Joined: Feb 2018
Posts: 2,323
Likes: 720
From: Marietta GA
Great Post. My 2023 Z51 is a certified Garage Queen (others cars keep her blocked in). I took her for a Cruz and noticed when I open the door and closed it … the Horn Sounded. When I returned home and sitting in the driveway, I went to the vehicle setup screen and changed the setting. Not sure how this setting was changed, my thinking is it was from a software update?
Pro
Joined: Dec 2004
Posts: 628
Likes: 155