Got an "Important Update" via my cell phone about an hour ago, I punched the button to update via the infotainment system, went to the Yukon and started it up, clicked on the settings icon and it asked to install the update and directed me to turn off the vehicle and leave it parked (it was in my garage). Said it might take 15 minutes, so I went inside. In about 6-7 minutes I received another alert that the update was successful!. I have no idea what this did as I never had the issue with the HVAC slowing down on startup and my Yukon still blows at high when started after the update, hope maybe it cured those of you that had that issue?
Important Update!
- Thread starter genestoy
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
WalleyeMikeIII
Full Access Member
Or....you will now have the HVAC issue when you didn't before!
Can you go to your MyGMC app and look at the vehicle update install history and see the update number, and share it w/ us?
genestoy
Full Access Member
N23-2411560
WalleyeMikeIII
Full Access Member
Thats a new one I haven't seen before...hum...
TrueAt1stLight
Full Access Member
I received that update too. My Yukon was at the dealership for service and I asked them to run the update: big shock. It failed. They have a tech today working to troubleshoot.
Last edited:
mikepankau
TYF Newbie
- Joined
- Jul 2, 2023
- Posts
- 24
- Reaction score
- 12
I received the update today. HVAC fan-speed issue happened again already - wasn't fixed in this update!
Thomas Schneider
Full Access Member
Like everyone else, I received the notice yesterday for my 2021 Tahoe Z71 just as I pulled in the garage after topping off the tank for a trip to Chicago today. As you can imagine, I was concerned that if I downloaded it, what might happen and could cancel our trip. I rolled the dice and downloaded it. No problems from the OTA update and I just wrapped up today's drive (520 miles) with no problems. I don't know and couldn't tell what was updated/changed, but all is well. Got another 5 hours of driving tomorrow, so fingers crossed all will continue to go well.
Dayzoo
TYF Newbie
My Yukon asked to do the update as I pulled into work yesterday. After work I went out to the vehicle and the battery was stone dead. The update drained the battery and said it was an unsuccessful update. Now the engine light is on and the info system says 'service front collision system".
Trying the update again today except I'll check it in an hour before it drains the battery again.
**UPDATE - it worked this time - no update failure**
Last edited:
To prevent the failed updates, I have decided to only do updates at my house where I can connect the vehicle to my home wifi before installing. This method has been succesfull so far.
genestoy
Full Access Member
That is exactly what I do too.
WalleyeMikeIII
Full Access Member
By the time the vheicle gets to the point of asking you to update, the required files have already been downloaded...thats how it works:
It downloads the update in the background then after the files are onboard, it prompts you to do the update...so there is no connectivity required if the system is already prompting you to update.
WalleyeMikeIII
Full Access Member
I got the update today...no fan speed fix for me either...shocking...
I did navigate to the Updates portion of the settings and read the key refinements section...baisically said it was an update to make future OTA updates go better. (can't recall the exact verbiage)
UsualSuspect
Full Access Member
Mine is the same way, picked it up in April. Never had an update that I know of, and when i manually check it states there isn't any.
WalleyeMikeIII
Full Access Member
Could be...maybe yours is "up to date" currently.
I am not saying that you are wrong, but a couple of updates ago it failed on me 3 times in a row. I connected to Wi-Fi for the 4th attempt and it worked. Maybe it needs communication to validate or something?
WalleyeMikeIII
Full Access Member
Could be, just was sharing what I saw in my research.
StephenPT
Full Access Member
I waited this one out a couple of weeks from when I got the notification to attempting install - doesn't seem to be causing any issues (or fixing any issues at the user level - description made it sound like it's just backend stuff).
Installed today without a hitch - update said it would take 15min - it took no more than 5min. I'm now up to six OTA updates installed.
Installed today without a hitch - update said it would take 15min - it took no more than 5min. I'm now up to six OTA updates installed.
Similar threads
