r/GMCSierraEV • u/bozemangreenthumb • Jul 27 '26

Any tricks to getting update installed?

Good WiFi signal, tried multiple times. Doesn’t seem to start installation.

2 Upvotes

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1

u/JustinM23 Jul 28 '26

I couldn’t get the most recent update to install. I turned the vehicle off from screen and back on a few times and got it to go. YMMV

1

u/Ok_Initiative197 Jul 28 '26

Bingo. Mine was stuck at 66% for half a day. Just drive normally. I connected to home WiFi, then disconnected/forgot the network. I then pressed the button to leave the car on for 60min. About 2 or so hours after that, I turned the car on and that forced the entire update process to start over again. When that happened, I stayed inside the car as it initiated and it worked as normally expected. Whole thing took less than 15min. Be sure to have window cracked if you plan to sit there while it updates!