Anyone else have this issue? If so how much did it cost to fix?

[AlexDenali]

Randomly got a U0633 code with CEL on. I reset it and it came back on. There’s a bulletin on it. If you had this issue, what was the fix? And how much did it cost you? 

[silveradosid]

there is abulletin on it 21-NA-077, seems it has to do with the areo shutters

[AlexDenali]

I read that. Just picked this truck up used a week ago just outside of bumper to bumper warranty so I’m a little pissed. Hoping it’s not to expensive 

[Jus Cruisin]

Take it to the dealer you bought it from. They'll likely take care of it or at least help with the cost to repair. Private sale? As Is No Warranty, you're on your own dime. 

[Transient]

In many states, consumer protection laws give you 30 days to back out of a vehicle sales contract.  It's assumed you bought a vehicle in good faith, believing it was in good operating condition.  Regardless of whether or not you have a warranty, you could argue the seller knowingly sold you a product with known defects. 

Edited June 2, 2025 by Transient