2026 OTA Beware
Thread Starter
Burning Brakes
Joined: Mar 2013
Posts: 1,174
Likes: 226
From: Colorado
2026 OTA Beware
The OTA for the tail light fix tried to update on my car. Kept getting to 99%, then started over again and again. Drained the battery to 4.2V. Had Roadside jump it and took to dealer. They figure out that it was the failing update. Checked the battery which was OK and they did the update. Never had this happen before and don't know how Chevy could be so stupid not to cancel after a few tries. Just a heads-up. Only OTA on '26s, '25s need dealer install.
Race Director
Joined: Aug 2016
Posts: 12,710
Likes: 10,140
From: Garden Valley CA
You'd think they would have figured this out by now. Draining the battery during a failed OTA update was a common problem in the early days. My advice was to always roll down the driver's side window (if practical) and return to the car in about an hour to make sure everything went OK. I guess people need to start doing that again.
Safety Car
Joined: Nov 2007
Posts: 4,433
Likes: 873
From: Bay Area CA
On my 2026 Eray, about a week ago I did the taillight recall update with no issues. Today, there was another update for some bug fixes, and it took 2 1/2 minutes to complete with no issues. The latest update was version 661.21
Safety Car
Joined: Nov 2007
Posts: 4,433
Likes: 873
From: Bay Area CA
Today, I sat in the car with the windows down and the frunk popped open just in case I needed to get to the battery. The OTA went without an issues.
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Instructor
Joined: Jan 2026
Posts: 248
Likes: 188
From: Atlanta
Good to know. I have a 2026 and haven't even been in it since April 8. I've been out of the country and it's in my garage plugged in. I'm getting new wheels and I was thinking about having the dealer install the wheels and do the update at the same time.
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
Downloaded the update two days ago in my garage with no issues. Took about 10 minutes. Left the drivers window down and went out to check on it after 15 minutes and it was done. Got the "Updated Successfully" message when I started the car.
Instructor
Joined: Mar 2016
Posts: 202
Likes: 137
From: MD's Eastern Shore
My 2025 Z06 completed this update just fine. Not sure how it works as the car is parked in my garage and I live in a cellular dead zone. I have to drive about a mile up the road to get a cell signal.
Oh well, whatever works!
Oh well, whatever works!
Instructor
Joined: Jan 2026
Posts: 248
Likes: 188
From: Atlanta
Now this has me thinking: I've not even given thought to a connection but I assume it can connect to my home wifi?
Melting Slicks
Joined: Nov 1999
Posts: 2,340
Likes: 854
From: MI
Cruise-In VI Veteran
Connecting a 2025 Corvette to home Wi-Fi is done via the infotainment system to enable software updates,, Google Assistant, and app downloads. Access this by selecting Settings > Wi-Fi on the screen, selecting your home network, and entering the password.
My early build 2025 just got the OTA update, fairly quick software update and the Chevy App reflected the compliance shortly afterwards
Melting Slicks
Joined: Jun 2004
Posts: 3,497
Likes: 701
From: panama city beach florida USA
St. Jude Donor '09
Burning Brakes
Joined: May 2025
Posts: 782
Likes: 596
From: Bucks County, PA
I’m gonna go check mine right now. I initiated the update after parking it in the garage yesterday. Hope all went well. I don’t wanna have to go back to the dealer, I was just there a week ago for an oil change and inspection.
Safety Car
Joined: Nov 2007
Posts: 4,433
Likes: 873
From: Bay Area CA
Team Owner
Joined: Aug 2000
Posts: 24,076
Likes: 1,322
From: Spring Texas
You'd think they would have figured this out by now. Draining the battery during a failed OTA update was a common problem in the early days. My advice was to always roll down the driver's side window (if practical) and return to the car in about an hour to make sure everything went OK. I guess people need to start doing that again.