Engine Issue 2023 Yukon Denali 6.2L only 4k miles

Purchased new 2023 Yukon Denali with all the bells and whistles, and seems like engine blew after only 4k miles. After researching and reading numerous threads, sounds like the 6.2L issues are well known and have been frustrating customers for several years.

Went to start vehicle and rpms immediately dropped and vehicle shutoff, and said "vehicle condition not met to shift" or something like that. Same thing kept happening and I could tell RPMs needed to stay up in order for vehicle to keep running so I held steady on the gas after starting and quickly shifted, then made it to the dealership. Now we wait for their feedback.

My question is will GM replace the vehicle or only give a credit for what you paid for it if forced to go lemon law route, or another way to say that is how will they determine the amount or vehicle to exchange? I might consider the diesel engine option if that is a possible way to go.

Wish I would've known about these issues before purchasing. Disappointing.

Yep......Hopefully they will make it right. There are many threads on here about your dilemma and/or lemon and buyback. Just search them and you'll have a wealth of knowledge

From what I've read, the only reliable thing is the Duramax diesel.

You're getting way ahead of yourself with thinking of the Lemon Law. That's for problems that don't respond to repeated fixes. Gotta give them a change to fix it first.

The problem that gets complained about here is bad rod bearings, but your engine wouldn't run at all if that was the case. Since you were able to drive the truck to the dealer, it's likely a minor problem that can be fixed. If they can't fix it - then you think about lemon law stuff.

That sucks, please keep us posted/ this thread updated with what's going on. I'm very interested as I also own a new 6.2L, but it's at least made it all the way to 6K miles.

Just curious, have you done any oil changes on it so far? I known it wouldn't technically be due for one yet, but out of paranoia, I did a 500 mile oil change and 3000 mile oil change, probably didn't do anything other than waste time and money, but it made me at least feel a little better.
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bcupp4086 said:

Purchased new 2023 Yukon Denali with all the bells and whistles, and seems like engine blew after only 4k miles. After researching and reading numerous threads, sounds like the 6.2L issues are well known and have been frustrating customers for several years.

Went to start vehicle and rpms immediately dropped and vehicle shutoff, and said "vehicle condition not met to shift" or something like that. Same thing kept happening and I could tell RPMs needed to stay up in order for vehicle to keep running so I held steady on the gas after starting and quickly shifted, then made it to the dealership. Now we wait for their feedback.

My question is will GM replace the vehicle or only give a credit for what you paid for it if forced to go lemon law route, or another way to say that is how will they determine the amount or vehicle to exchange? I might consider the diesel engine option if that is a possible way to go.

Wish I would've known about these issues before purchasing. Disappointing.

Click to expand...

YES!!! I just experienced the same problem back in February with only 2600 miles. I have learned a lot through this ordeal. After a couple months of fighting with GM. I finally proved my case and they are doing a buy back. I had to prove the vehicle to be a lemon, which I did. I am not sure what state you are in but please investigate your lemon laws. Our state said if we had more than 30 cumulative days of the vehicle being in the shop for repairs. (Doesn't have to be for the same thing) then that qualifies a lemon. It was back in the shop at 4000 miles for the leveling system going out, then again at 6000 for the start/stop assist failing and the transmission slamming in and out of second gear. I reached out to GM and they tried multiple times to say we were only at 28 days of repairs and declined a buy back. (They tried to offer me a year of onstar for my troubles ) I had to do my own research to find the. tow company that towed my vehicle the very first time since it was requested through ONSTAR. Then and only then did they catch that it was 32 days. Funny since they are onstar, they should have caught that at the beginning. I filed a complaint with: https://bbbprograms.org/programs/all-programs/bbb-autoline.
STAND YOUR GROUND!
We run a fleet of GM vehicles but not after this. BUYER BEWARE!!!

bcupp4086 said:

Purchased new 2023 Yukon Denali with all the bells and whistles, and seems like engine blew after only 4k miles. After researching and reading numerous threads, sounds like the 6.2L issues are well known and have been frustrating customers for several years.

Went to start vehicle and rpms immediately dropped and vehicle shutoff, and said "vehicle condition not met to shift" or something like that. Same thing kept happening and I could tell RPMs needed to stay up in order for vehicle to keep running so I held steady on the gas after starting and quickly shifted, then made it to the dealership. Now we wait for their feedback.

My question is will GM replace the vehicle or only give a credit for what you paid for it if forced to go lemon law route, or another way to say that is how will they determine the amount or vehicle to exchange? I might consider the diesel engine option if that is a possible way to go.

Wish I would've known about these issues before purchasing. Disappointing.

Click to expand...

Most states require the vehicle in the shop for 30 days to be eligible for lemon law.

I just went through this, full block replacement at 29K miles. Total time in the shop was 3.5 weeks, 2.5 block backorder wait, 1 week repair time.

I think more 2023 L87 folks should be aware that a bulletin went out in April regarding engine block failures, but GM didn't notify the owners. Mine died when the auto-stop kicked during a traffic jam in the middle of a 5-lane interstate. Neutral shift blocked by computer, sitting duck when traffic picked back up, 2 hours wait for tow.

Greetings from north of the boarder...I purchased a new 2023 Yukon Denali, the last weekend of October I was driving when I experience a catastrophic engine failure with only 14,500km (under 9,000 miles). I've been waiting for an engine replacement ever since and the local GMC dealership cannot provide me an ETA. I've been in contact with GM of Canada, requesting them to honor my original purchase price so that I can purchase another vehicle, but they are somewhat dragging their feet on the issue. Where I live we don't have a Lemon law, so I am at the mercy of GM as to what they want to do. I've been a dedicated GM owner for over 40 years and this is the first time ever something like this happen, but reading through this page, it seems that I am not alone.
I'll keep you posted on my side as to what GM says, I don't have high hopes reading through all the complaints.