Wow, sorry for your troubles with this engine. I’m waiting for General Motors to execute the recall on my 2023 Denali with only 17,000 miles.
I now feel they will say everything is fine and give me a 0W-40 oil change and send me on my way.
I now plan to demand an extended warranty or a vehicle...
I know there were extra pins since the dealer installed illuminated sill plates a while back… but these are staying lit anytime the headlights are on and are not cycling off with the interior lights.. Dealer already verified correct wiring
…anyone considering adding active exhaust to their newer Yukon or Tahoe (2021-2024)… similar that’s offered on the trucks?
Activated by drive mode switch
..plus if the 6.2 detonates the dealers are required to send an oil sample back to GM for analysis. Is they find something in the oil that is not in the owner’s manual, they can deny a warranty replacement
There is a TSB… Technical Service Bulletin the dealers have. If this is the same situation it has to do with the rear seat controls in the cargo area where the connectors are not fully plugged it.. good luck
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