Software Update /Dead Battery
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Joined: Jun 2011
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From: Longboat Key Fl
Software Update /Dead Battery
Today, drove my 2021 C8 Convertible to a business. Shut it off; self locked-no issues. 2 hours later, battery dead. Roadside Assistance jumped it. Dealership says during an OTA (over the air) update, the update got "stuck" and drained the battery. Tech "cleared" the message and all good. Just fyi.
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Oct 14, 2024, 04:33 PM
Race Director
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From: Ft Lauderdale
Tech Contributor
just remember when you completely flatten and drain a battery, the battery may not be the same, it may have long-term damaged it. You may be set for a “spontaneous battery failure” sometime in the future.
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From: Ft Lauderdale
Tech Contributor
just remember when you completely flatten and drain a battery, the battery may not be the same, it may have long-term damaged it. You may be set for a “spontaneous battery failure” sometime in the future.
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[QUOTE=johnbeeman1;1608252310]Today, drove my 2021 C8 Convertible to a business. Shut it off; self locked-no issues. 2 hours later, battery dead. Roadside Assistance jumped it. Dealership says during an OTA (over the air) update, the update got "stuck" and drained the battery. Tech "cleared" the message and all good. Just fyi.[/QUOTE
Prior to "shutting off" the car, did you receive a notice of a pending update and did you approve the update? That how it is supposed to work. And then you get something that says to shut off the car. Also, was it the original battery? And, since the battery was dead, I assume you had to use the manual method to open the door, then access the manual frunk release so that RA could jump ti?
Prior to "shutting off" the car, did you receive a notice of a pending update and did you approve the update? That how it is supposed to work. And then you get something that says to shut off the car. Also, was it the original battery? And, since the battery was dead, I assume you had to use the manual method to open the door, then access the manual frunk release so that RA could jump ti?
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Joined: Jun 2011
Posts: 79
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From: Longboat Key Fl
Software update/Dead battery
No software updates request noted
Car would not turn over although interior systems worked. Given the quick start I'm not sure the battery was totally drained. More like locked up. Frunk and trunk opened with the fob. Radio, interior systems all worked. Just wouldn't crank, not one turn.
Car would not turn over although interior systems worked. Given the quick start I'm not sure the battery was totally drained. More like locked up. Frunk and trunk opened with the fob. Radio, interior systems all worked. Just wouldn't crank, not one turn.
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Race Director
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No software updates request noted
Car would not turn over although interior systems worked. Given the quick start I'm not sure the battery was totally drained. More like locked up. Frunk and trunk opened with the fob. Radio, interior systems all worked. Just wouldn't crank, not one turn.
Car would not turn over although interior systems worked. Given the quick start I'm not sure the battery was totally drained. More like locked up. Frunk and trunk opened with the fob. Radio, interior systems all worked. Just wouldn't crank, not one turn.
Racer
Joined: May 2019
Posts: 303
Likes: 133
From: Raleigh, NC
Today, drove my 2021 C8 Convertible to a business. Shut it off; self locked-no issues. 2 hours later, battery dead. Roadside Assistance jumped it. Dealership says during an OTA (over the air) update, the update got "stuck" and drained the battery. Tech "cleared" the message and all good. Just fyi.
Burning Brakes
Joined: Jul 2016
Posts: 817
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From: Treasure Island, Lake McQueeney, Tx
I also have a 2021 HTC, my info screen says no updates for it. I bought it used in April, the dealership updated something before I picked it up. I have not got any notices since owning. I would also replace that battery.
Burning Brakes
Joined: Oct 2018
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From: Monticello, AR
2024 C8 of the Year Finalist - Unmodified
I don't think the '20 - '23s get OTA updates anymore. My '22 has had several but none for over a year.
Last edited by Kvou812; Oct 14, 2024 at 11:05 PM.
Advanced
Joined: May 2019
Posts: 97
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From: Macomb, Michigan
FYI - Just received an email from Chevrolet telling me to bring my '23 to the dealership for a software update that can only be performed at the dealership. Not sure if this applies to pre-2023 but you may get notified.
Melting Slicks
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From: Chapel Hill NC
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Gone are the days when my battery died I would push the car with the drivers door open, jump in once moving, pop the clutch, and drive away. C8 has too many systems dependent on proper battery function/voltage so Id replace your battery and not take the risk of possible future issues.
Melting Slicks
Joined: Apr 2021
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From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified
I haven't seen a software update for my 2022 in more than a year. I don't think the 2020-2023's get OTA's anymore. I'm betting your problem was something else and the tech was telling you a story.
Melting Slicks
Joined: Apr 2021
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From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified