c8 software update
Instructor
Joined: Jul 1999
Posts: 155
Likes: 30
From: Manchester, TN
Mine did the same thing for 3-4 attempts. Connectivity was good and battery was on a tender. On the next startup it worked fine and was done in less than 5 minutes.
So no idea what the root cause was.
So no idea what the root cause was.
Safety Car
Joined: Nov 2012
Posts: 3,978
Likes: 2,595
From: Gettysburg PA
2020 C8 of the Year Finalist - Unmodified
What is this update updating??? Anything good we need to know about? Wonder if it's just for certain date codes / years???
Obviously, I've not receive the notice yet......
Obviously, I've not receive the notice yet......
Banned Scam/Spammer
Joined: Aug 2013
Posts: 1,286
Likes: 120
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
I had the same message as OP the first time. After the failed update, I started the car, backed it out of the garage, and hit the update box again WITH ENGINE RUNNING. Install began, and was instructed to shut engine down and set parking brake. At that point it installed successfully in less than 5 minutes.
The message shown in OP seems to hint that the system needs to see certain parameters before installing, and the car seems to be "primed" to update immediately after engine start, placing in park, then shut down with parking brake set when update cycle begins.
Le Mans Master
Joined: Apr 2012
Posts: 6,956
Likes: 4,811
From: Camden SC
I have a 2022 HTC and I have attempted to install a total of three OTA updates. Unfortunately, the first two were unsuccessful. I recently received the same message as many of you, that there is another update and that this one should only take five minutes to install. I decided to give this whole update thing one more chance and I initiated the install. Before I gave the "go ahead", I attached my battery tender, just to make sure I did not "brick" the car. This time the install was successful, and it actually took less than five minutes. Here is the interesting part:
My tender has a "level of charge" meter. Before I did the install, the battery was at 95% charge. After the five-minute install, my battery state of charge had dropped to 71%!!!!
Thankfully, the tender was attached. However, if a five-minute charge takes nearly 25% of the battery, just think what a 20-minute or 60-minute install would do????
My tender has a "level of charge" meter. Before I did the install, the battery was at 95% charge. After the five-minute install, my battery state of charge had dropped to 71%!!!!
Thankfully, the tender was attached. However, if a five-minute charge takes nearly 25% of the battery, just think what a 20-minute or 60-minute install would do????
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Race Director
Joined: Aug 2016
Posts: 12,763
Likes: 10,198
From: Garden Valley CA
The software is already downloaded when you get the install prompt. The install process does several checks to ensure the car is ready for update which may be easier to pass with the engine running. The install process will tell you to turn off the engine (if running) once it has passed the checks.
Race Director
Joined: Aug 2016
Posts: 12,763
Likes: 10,198
From: Garden Valley CA
I have a 2022 HTC and I have attempted to install a total of three OTA updates. Unfortunately, the first two were unsuccessful. I recently received the same message as many of you, that there is another update and that this one should only take five minutes to install. I decided to give this whole update thing one more chance and I initiated the install. Before I gave the "go ahead", I attached my battery tender, just to make sure I did not "brick" the car. This time the install was successful, and it actually took less than five minutes. Here is the interesting part:
My tender has a "level of charge" meter. Before I did the install, the battery was at 95% charge. After the five-minute install, my battery state of charge had dropped to 71%!!!!
Thankfully, the tender was attached. However, if a five-minute charge takes nearly 25% of the battery, just think what a 20-minute or 60-minute install would do????
My tender has a "level of charge" meter. Before I did the install, the battery was at 95% charge. After the five-minute install, my battery state of charge had dropped to 71%!!!!
Thankfully, the tender was attached. However, if a five-minute charge takes nearly 25% of the battery, just think what a 20-minute or 60-minute install would do????
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
I agree. I don't think having a maintainer hooked up saves you from a battery run down if the update gets hung up and doesn't abort or complete.
I also don't think a successful update is a big battery draw. I didn't have my CTEK hooked up during 2 update tries, the first of which failed, followed by starting the engine and trying again successfully. I hooked up the CTEK after putting the car back into the garage, and it was fully charged in less than 1 hour.
That's about the same amount of time it takes to reach a full charge when I hook it up immediately after a long drive. I suspect a lot of folks don't realize that the alternator never fully tops off a battery.
I also don't think a successful update is a big battery draw. I didn't have my CTEK hooked up during 2 update tries, the first of which failed, followed by starting the engine and trying again successfully. I hooked up the CTEK after putting the car back into the garage, and it was fully charged in less than 1 hour.
That's about the same amount of time it takes to reach a full charge when I hook it up immediately after a long drive. I suspect a lot of folks don't realize that the alternator never fully tops off a battery.
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
It's hard to say. I believe the OTAs are only pushed to certain VIN ranges they feel the need to update for whatever reason, but it's still a mystery because GM hasn't been very informative about who gets them and what they are for. Update descriptions are very cryptic, and you don't really know what they address.
Racer
Joined: Nov 2020
Posts: 446
Likes: 583
From: Westchester, NY
Drifting
Joined: Mar 2020
Posts: 1,568
Likes: 1,026
From: 31 hours East of Peoria, AZ
Safety Car
Joined: Apr 2007
Posts: 4,547
Likes: 609
From: Southeast, WI
It's hard to say. I believe the OTAs are only pushed to certain VIN ranges they feel the need to update for whatever reason, but it's still a mystery because GM hasn't been very informative about who gets them and what they are for. Update descriptions are very cryptic, and you don't really know what they address.
Team Owner
Joined: Oct 2004
Posts: 25,583
Likes: 16,942
What I don't understand is the "bricked car" syndrome. It would be fine if updates failed to complete with no effect on the car, and you could try later successfully. That's been my experience.
I'm also thinking that the surest fire way to do an OTA update is:
1) Start engine, leave in Park with Emergency Brake engaged
2) Touch the update box to begin update
3) Wait for message to shut engine down
4) Countdown appears while update is completed.
Something about the engine start cycle may "prep" the car to receive the update successfully because the initial start seems to reboot many systems.
I'm also thinking that the surest fire way to do an OTA update is:
1) Start engine, leave in Park with Emergency Brake engaged
2) Touch the update box to begin update
3) Wait for message to shut engine down
4) Countdown appears while update is completed.
Something about the engine start cycle may "prep" the car to receive the update successfully because the initial start seems to reboot many systems.
Advanced
Joined: Jan 2021
Posts: 80
Likes: 47
From: Dallas, TX
November 2022 OTA Update
Following the update, two things were obvious. The first was the vehicle was initially sluggish in Drive as I pulled out of the garage. The second was a change in start-up graphics, with the gray Corvette on the center screen being replaced with a colorful Corvette logo.
I am interested in what others have observed following their OTA. It would certainly be nice to know (and many of us would appreciate) Chevrolet making available a list of changes and updates with each over-the-air update.