Hello all, I am writing to request a replacement or repurchase for my defective 2022 GMC Yukon, which I purchased brand-new in January 2022. Since April 2022 and at 5000 (five thousand) miles, I have been experiencing a repeated Check Engine Light problem.

I have taken the vehicle to my local GMC dealer, who has involved GM Engineers, on seven [7] occasions to have the problem fixed, but they have not been able to resolve the issue. I am now concerned that this defect is built-in the vehicle itself.

We've been waiting and bringing the truck for frequent, lengthy repairs for more than a year and a half, and we're tired of it. We have never performed two oil changes without visiting the repair facility for a check engine light issue in between. The failure of this new vehicle to pass the upcoming emissions test would be highly embarrassing for GMC and render the vehicle worthless. Our Toyota Highlander has been operating flawlessly for 11 (eleven) years, as well as a brand-new Kia Telluride. These trustworthy vehicles are better than a Yukon with manufacturing flaws in our opinion.

GMC is required by the Lemon Laws to replace or repurchase my truck due to this recurrent irreparable defect after all these attempts to fix it. I am therefore asking GMC to act to replace the vehicle for my family.
Please let me know if you have any insight or have been through the same issue.
Thanks,

Hello AAhmed,

GMForum.com is not directly affiliated with General Motors Corporation or any of its subsidiaries. This is an all-volunteer advisory forum that is here to generally assist with issues with GM vehicles and some related activities. We could certainly assist with advice, but otherwise you will need to contact GM directly, discuss with your dealer, discuss with a lawyer, or find some other way to go about requesting this action.

If you are open to suggestions: I suggest you have your paperwork together showing your vehicle'* multiple visits nd the details of those visits, including the original complaints for each visit as well as the findings and repairs done before the vehicle was returned to you. We can, to some degree, assist you in understanding this such that you will be more informed when entering this process.

It will also help us to know what region this vehicle is in and to have the VIN.

Welcome aboard!

Hello, and thank you. I appreciate you offering to help. Yes, I am quite receptive to recommendations and counsel, which is why I've posted this.
I'm in the Chicago, Illinois, metro area. please advise on the process and any related items. Thanks

Gotcha. Please be aware that we are not the absolute authority on this type of thing.

We should probably start with what are the symptoms and what were the findings during each visit?

My check engine light consistently displays the fault P2297: Oxygen sensor out of range following deceleration. They changed the sensor twice, the fuel intake, and they fixed the discovered exhaust leak. The vehicle also had numerous instances of emission-related codes, every time different repairs.

Off the top of my head, a consistent P2297 that survives an oxygen sensor replacement is possibly a fuel issue, like a leaking injector or evap system issue.

This issue is not usually resolved by changing the sensor. Since I know of no other codes being set, I believe the oxygen sensor is correctly reading all the time, except in this circumstance. That tells me that the oxygen sensor(*) have been working fine, but something else is adding fuel inappropriately upstream of the oxygen sensor.

That'* not much for us to work with. Do you have other details available?

Lemon laws usually require three opportunities to fix the same problem within a reasonable amount of time. It sounds like these problems are different every time, so then you would get into proving that they all come from one common fault that the dealership has been unable to repair. Do you have more details that we can look at such that we could possibly build a theory as to what is going on with this vehicle?

They did alter the fuel intake. As I mentioned.
Are you suggesting that GM engineers misdiagnosed the same issue seven times?
Thanks

They're not engineers.

. . . and it wouldn't surprise me.

What did it go in for each time?

No, the dealer has to contact GM in this process very early on. The first time, they advised them to conduct a smoke test. The dealer responded we already did, and that'* when the protracted process began.
According to what you're stating and from a consumer perspective, there was a significant failure in the diagnosis of the problem, and this fault appears to be inherent in the car itself.
thanks

I don't have the full story. I only have the small morsels of information that you have given me so far. What I know so far is:

- you have had to take this vehicle back to the dealer repeatedly
- they have involved GM engineers seven times
- the car still has issues repeatedly
- they changed the oxygen sensor twice
- they changed the fuel intake
- they fixed the discovered exhaust leak
- the vehicle also had numerous instances of emission-related codes, every time different repairs

What I don't know, even though I've asked twice, is what the specifics are of these repairs.

This is not what I am stating. I did state that it wouldn't surprise me that it has been misdiagnosed. Based on my experiences directly with GM dealerships and through my online support of issues with GM vehicles, I've seen a lot of misdiagnosis by dealerships. Because I've seen this, it wouldn't surprise me that this is happening in your case, especially with the circumstances you've reported.

The idea that the "fault appears to be inherent in the car itself", I believe implying that the problem will stay with the car no matter the amount of troubleshooting, is wishful thinking at best. The car is simply an assembly of many complicated parts and can be diagnosed and repaired.

If you're quoting me back to dealerships, GM, lawyers, etc., be sure to point them at this thread so that they know that I'm diagnosing this from a keyboard on the far side of the Internet, and the evidence that I'm working with so far are short generic descriptions of chronic issues with almost no details, which I have asked for repeatedly.