usmcfiredog
Active member
sorry I forgot to check. I will check later on
Well what are they updating? I think only the radio updates will update the version you see on the screen.Thanks. I have a year older software version than you... It's weird because the truck was built in May of last year but my software version is Oct of 2021. Kernal version is different too. I just had it at dealership getting updates but this didn't change.
I appreciate the confirmation and I wish it was this simple . My dealer (who originally provided the docs and bulletin # in that image) still couldn’t get the start up screen correct even after applying the update . There is a deeper step about finding the appropriate images somehow .A Thank you, to all earlier posts.
The GMC Bulletin adding the “AT4X” Logo Software Update, the Start Up Screen is…
22-NA-253
I called GMC Executive Resolution Team…. They confirmed what was posted earlier, gave me the exact and same bulletin update: 22-NA-253
The picture below was posted earlier in this thread, and is the CORRECT software update.
https://www.at4forum.com/attachments/f69d9a94-1338-46bb-880f-20d390ac02b4-jpeg.3463/View attachment 3630
Take this information to your local dealer’s, service department and within 1 hours time, your Start Up display will show “AT4X” instead of “AT4”
(My truck was manufactured in July 2022)
Do you mind providing the last 6 of your VIN#? I called the dealer and spoke to the Service Manager but he couldn't find what was done. Currently my truck got "bricked" during the update so any info you could provide would be very helpful!Fox GMC of Grand Rapids
1 616-965-1785
Dam I better be careful with my dealer they forgot to put my oil dipstick backThanks Rocky...here is the full bulletin for anyone's reference. If you take your truck into a dealer to do the the update make sure they know what they are doing. Apparently it is easy to mess these trucks up.