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
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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.
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mikepankau
TYF Newbie
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I received the update today. HVAC fan-speed issue happened again already - wasn't fixed in this update!
Thomas Schneider
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**
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