Rogue Leader

Wow, this seems to have exploded. While I don't know for sure I can infer in my case that the leaky trans cooler combined with negligence may have been the issue. Backstory, my truck was a fleet vehicle for Southern Tire Mart which also owns some dealerships in the Mississippi area (Pine Belt Auto group, which is where I got it). The truck has the 5th wheel package and I believe was used to tow a trailer for tire service. I do have the full maintenance history on the truck, it was maintained at the dealer, and is otherwise in surprisingly perfect condition considering its use. Anyway they did do a whole bunch of maintenance before selling it to me, and I got a good deal. The servicing dealer after fixing the leak told me it had probably been leaking for a while as the transmission was quite low on fluid. The other thing is while it did shudder it basically drove fine. Went into gear, reverse, etc, shifted up and down, it was just noisy. So I can imagine that some fleet driver was just like whatever about it and drove it around like that. So yeah based on that I'd assume it was the low fluid condition, which was ignored and continued to use for towing that caused the damage. I have read some nightmare stories about the 6L90, but then others that say its bulletproof, so its hard to know for sure. I kinda want to add 2 bottles of Lubegard to it which supposedly helps protect it, but getting 20oz of fluid out of the transmission and this in its place without causing a disaster seems like an impossible task with no dipstick. Considering its under warranty I don't want to f with it.

To provide you all with a resolution, my truck was fully repaired under warranty. All the clutches in the transmission were burnt, as well as a bunch of other damage, they replaced those, the pump, the torque converter, and other parts, flushed everything out, and I'm back in action. Truck runs great and I have a 12 month/12k mile warranty on the work. Thank you to @GMCustomerService for advocating on my behalf in this situation as well. It took a while (5 weeks!) but it was done right.

Thank you!

I'll try to make this as brief as possible. Previously owned a 2008 Silverado 2500HD with the 6L80, sold it with 197k miles on it and 0 problems with the transmission. Got myself a used 2022 2500HD Silverado Custom, 6L90, its got 99,840 on it.... so yeah almost done with that powertrain warranty. Bought it in Mississippi and had it shipped up here to NY, because all used trucks here are rotten. When I got it I felt this rumble at certain speeds which I thought was maybe a wheel bearing. The coolant overflow was also leaky. Brought it to my local dealer since its still under powertrain warranty, described the issue, said I thought it was the right side front wheel bearing. So they say yeah its the wheel bearing and change it, also noticed a leak from the trans cooler so they fixed that and the coolant tank. Only the trans cooler was under the powertrain, but the dealer I got the truck from covered the cost on the rest. When I went to pick it up the service advisor says "oh the tech says you may feel a shudder from the transmission, but its fine". The SA had also said it was pretty low on fluid and had been leaking for a while. I pick it up, and its doing the same thing as it was before... so yeah the wheel bearing probably wasn't the problem. Once it warmed up, the shudder was maybe even worse. Slightly better when cold I guess because of the properly filled fluid, but there. I called the dealer shop and he suggested a 20qt flush and 500 miles of driving. I pointed out that would take me out of warranty if I drive 500 miles and something is still wrong. He basically said "oh well sorry". I'm none to happy about that. Selling dealer (who is also Chevy) called them and they basically said the same thing to them. I'm dropping it off tomorrow to get the issue on the record as the words "transmission shudder" are nowhere on the documentation from the prior repair, and the selling dealer is willing to cover the cost of the flush, if thats what the local dealer reccomends, but if that isn't the fix I feel like I may end up on the hook here for a converter or worse. Don't really know if this is going to go sideways for me just yet but wanted to see if anyone else had any experience with this problem and resolving it, especially at the end of the warranty. Or having had to have something fixed after the warranty expired that the dealer had worked on under warranty. Highly annoyed that I sold a perfectly working but kinda rusty old truck to buy a new truck for way more money with problems, but thats my luck. At least the selling dealer is supportive.

Will do, I will likely order one soon. I do have one in my Alfa Romeo from OTOTO but it doesn't seem to be available on Amazon anymore, it works great. That said I would probably try something like this https://www.amazon.com/Ottocast-Wireless-CarPlay-Android-Auto-Reconnect/dp/B0FQP1KRHP/ref=sr_1_1_sspa?crid=178OGRFGJQQEL&dib=eyJ2IjoiMSJ9.ZYsQJPlstYylA5BfrB3TB2SsM1quFkspZRAutVHCYJtsSKQ-oIU9Kh5zWzeQWvTqVg7t7AvAl_qXGhEt2ToWPVR362UPRzzsxfr7PqIO9SqJJp6jgGgLqF5LpNoOhYs2fngelPqqIJaQ5cfBWGSgHZa0ge3Mg6vDb9C2U2ZwWdH9pm4kn99sMnSD4zaHCXfKfWmwUVG2v_61dfsVVFyuxDEZezJWW1L0iOR0kkmnRug.mO_AmfuWPg6_sgvFTU9dsXskowqRXpmMOAhveJJJdOs&dib_tag=se&keywords=wireless%2Bandroid%2Bauto%2Badapter&qid=1766405932&sprefix=wireless%2Ban%2Caps%2C303&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1 Because of the fact I only have the USB port in the dash so I'd rather not have a wired device hanging off it

Is yours an LT LTZ? Mine is a Custom, looking back art the order guide I must have misread, I have the 7 inch screen and it seems the 8 inch is required for Wireless....

Did a search through the forum but couldn't find this. Maybe I have misunderstood Chevy's documentation on the features or I'm just an idiot, but I assumed my truck has Wireless Android Auto, yet I can't seem to get it to work. Background, I have a new (to me) 2022 Silverado 2500HD Custom, with the Custom Value Package, 5th Wheel package, and Safety Confidence Package. Window sticker only mentions "wired Android Auto" which works. But then I had been reading that trucks with the 7" screen can work wirelessly. I tried the procedures in the manual, and theres no wireless AA. Only offers AA when its plugged in. I'm assuming i read something incorrectly, and wireless is not available on my truck.