Okievision

I've seen a few around Tulsa at dealerships, mostly elevation models, couple AT4X's

Did you do this yet? About to go this route

Got 2 updates also this week. My tire pressure from Onstar was a bit odd. Said my tires were low and suggested I air them up to over 600psi each, lol. It corrected back to 40psi late in the day

I just got the update, played around with the trusted device, set everything up and realized I'm not entering a 4 digit PIN everytime I start the truck to load the enfotainment. Removed it already, lol

2019 SLT w Bose sounded much richer than our new 2023 AT4 w Bose Until I added the GM Kicker subwoofer part #19417164

2023 AT4, same thing, everytime I start it, XM radio. Usually quits by the time I'm out of the driveway and headed down the street

23 AT4 tan one. Took my 2019 gas Sierra to make a deal on a 23 Silver SLT with the Duramax. They've been difficult to find here and this AT4 was up the hill still wrapped in some plastic. While we negotiated on the Silver SLT, the salesman managed to get this to the front door to show me. I was sold. IT's my retirement ( in another 24mos ) gift to myself.

I received a suggested reminder for my 2019 from my dealership following an unrelated service, quoting the brake fluid flush. Can't remember but I believe they quoted $179 but might have been $149.....can't find the email now. I'm at 4 years w/ 30K miles. I'll have it done next year.

700 miles since the TSB Mobil trans service. Still have the slight vibration feeling around 40-60mph but the jerky shifting has diminished greatly.

Dealer did the TSB ATF change, no charge. Paperwork showed this to be a $371 fluid change to the Mobil fluid. Not enough miles yet to really tell but knowing it's done is priceless, lol.

Will go next week, much appreciated

Starting to notice a strange "rumble" at city speeds, kind of like a vibration and it goes away when letting off the gas and coasting. Harder shifting too at 28K miles. 2019 GMC SLT. My Neighbors 2019 Denali spent 3 months at the dealer for a new transmission under warranty. He traded it the day it came out of the shop. Both 8 speeds. Just got the truck paid off, hate to have to trade. Build date 1/18/2019

agree. Having owned rollers on 2 trucks since 2016, While I've not had any reliability issues, next time I'll go with a cover to get the bed space back.