2015 YUKON NOISE IN CABIN

Wing350 · February 1, 2015

Zip, I understand what your saying about where you think this thread is going. It sounds like everyone is having same problem with slight variations.

Everyone is going in different circles to find out what the heck is going on with these related vehicles that's all.

This is where I'm currently at with my fix:

I just got the suburban ltz back from the dealer(after two weeks there) the roof cross bow fix and I did not fix the problem. It did fix the roof bows not being attach to the roof though. One can only think how many are driving around out there like that alone and what (if there are any) safety concerns just because of the roof bows are not attached. And I did inspect the heck out of the vehicle before signing and the dealer did put it back to showroom quality.

It still hasn't fixed "that something" that was the root of this thread. but it was something.

This pressure noise is such a hard fix to pinpoint. One minute it seems it's running rough and the window is down feeling (No windows are actually down), next it seems it's the rear end or a UV joint and there a clunk. It's just doesn't sound smooth and peaceful.

And I did get in contact with a GM Senior Advisor and started my Case #

So, in some ways this is all good news. You are now getting the "it's you, not the vehicle" story from the dealer and the GM customer service person is now someone who sounds a lot more sophisticated than the earlier over-worked, under-trained people you've dealt with. That's because both of these businesses know where your situation is heading.

The dealer knows you've got a vehicle that could probably be fixed if they spent days and days tracking down all of the "inputs" listed in the notes of Service Bulletin PIT5318A but they know that well before then you will have progressed into a nuclear-hot, lemon-law angry customer, all for a vehicle that GM should have built properly in the first place. The Service Bulletin essentially says that this large roof panel has shaken itself free of the structure that supports it and is now acting like a big bass drum instead of a medium bass drum for anyone riding inside of it. And that even after they complete this tricky and expensive body panel repair to fix it back into a medium bass drum, at least four other quality problems may continue to bang on the medium bass drum. Again . . . even after they complete this tricky and expensive body panel repair to fix it back into a medium bass drum, at least four other quality problems may continue to bang on the medium bass drum. That's a time-waster so big that they want you to go to the Chevy dealer in the next town to work it out. You can now expect enthusiastic support and service from your dealer exactly never.

Over at GM, your problem may have been transitioned from the people who try to keep your dealer doing their job to the group that sees a buy-back coming. They’ll probably now get one of the GM techs out to your dealer with some microphones and vibration analyzing software that will show them (not you) how bad the drum is being beaten. If it’s bad enough, and your mileage is low enough, and you scream enough, and the legal threat is big enough, then they will start a process to buy-back your vehicle. Otherwise, you are going to have to demand your dealer and GM address each of those potential quality problems. This is where the cotton balls and tape will actually come in handy. Stuff three cotton balls in each ear and wrap the tape around your head to keep them in place. You are going to hear them say “that’s normal” over three hundred times. They are going to compare your vehicle to another new vehicle/bass drum in their inventory that is also a lemon, “See, your lemon sound’s just like this other lemon.” Make them show you the test results and shop notes. Ride with them in the car. Keep all of your receipts. Document your phone calls with the people who are so concerned about your situation that they refuse to give you their last name. They are keeping all of this info in their “potential legal threat” file, so you should too. GM has been down this road many more times than you and they know how to play the game.

They are also watching to see if you’re a marshmallow.

Wrench589 · February 1, 2015

"Ok, lets go with "THE ANC HAS NOTHING TO DO WITH IT!!!". How does this help somebody out. Whoop dee do, so what. If you were reading this thread, you would know it doesn't matter about the cause, people just want the effect taken care of."

Here's how it helps somebody out....

First, it doesn't clog this thread up with page after page of trivial, irrelevant armchair conjecture about what will or will not mitigate the effects. Until you have actually tried at least one thing, give us all a break. Someone finding this thread will have to wade through pages and pages of useless speculation to get to anything meaningful and useful.

Second, it takes people down the wrong path, wasting their own precious time. I'm sure most owners would rather be doing something else besides stuffing cotton on holes.

Third, it makes us owners look like the buffoons that GM has always said we are. As they read it, I can just hear them saying " hey Bob, look what they think it is now! Ha ha ha." Why does it matter - credibility. When you walk in to the dealership (which I believe you have not done yet) your credibility is already low as the "idiot" customer. As soon as you start talking about stuffing cotton in the microphone, it just confirms to the dealer and GM that you are not credible. And, they will likely treat you as such. And that is not doing any of us any good in this matter.

Fourth, if an owner has a better idea about what the root cause is and is not, they can ensure that the dealership,doesn't go off in a direction that is not appropriate.

As far as stating that "it doesn't matter about the cause", well, that couldn't be more wrong or misleading. Until the cause is identified and corrected, these vehicles will be problematic.

Mortman · February 1, 2015

Why are we ignoring post 657? This links to a post made by a service tech that actually fixed the problem.

Wrench589 · February 1, 2015

Why are we ignoring post 657? This links to a post made by a service tech that actually fixed the problem.

Very good question, indeed!

In fact, as I recall, this is the first, and only, thing that has been reported to have "solved" the problem without another report to the contrary. Remember, there are some early posts where the dealer did things like Roadforce balance the tires, change the driveshaft, change the torque converter, and no improvement. So, it is entirely possible the the excitation forces in the rear end are severe enough to excite the "drum" of the roof.

Edited February 1, 2015 by Wrench589

The Zip · February 1, 2015

Ok wrench, I agree. Some of my posts could have been shorter, I’ll give you that. But that’s about it. Folks will do what they can to get relief. I’ll tell you what, you can be a Big help. Go ahead and have your rear-end changed out then you can advise the people using cotton or whatever whether or not it can be removed. Sounds like a plan?

Time to get the Super Bowl party goin’.

Wrench589 · February 1, 2015

Fair enough, Zip. Enjoy the game!

Jamac4567 · February 1, 2015

All of you need to demand a buyback instead of all this guess work. Our 2015 Suburban was finally bought back through the repurchasing department in Michigan. There have been several buybacks so no one at GM should be surprised including the dealerships. First thing is to get a GM engineer to inspect the vehicle. I have the names of a few that have already done this part. Once they identify the "unfixable buffeting problem" then the GM regional rep must be contacted to initiate the buyback process. I also have the names of a few GM regional reps who have taken part in buybacks. Lastly document everything and don't hesitate to do some investigate steps on your own. You would be surprised how much info you can dig up when you start looking. Don't let the dealership or GM minimize this problem, stick to your guns. Worst case you go to an arbitrator thru your Attorney Generals office and get a resolution that way. P.S. GM doesn't want to go through an arbitrator because it then scars the title as a lemon. they would rather buy it back clean and sell it to another sucker. Then tell GM to stick those cotton balls up their A*^.

PokerMunkee · February 2, 2015

I asked the tech, Mr. Merck, to post on here in a private message. Don't blame him if he doesn't want to publicly post on this debacle.

He responded with:

"I was convinced of the same thing. We did the headliner/roof bulletin first. It had no effect. However, I have heard that it fixed some trucks."

You can PM him if you have questions, he will probably respond.

Edited February 2, 2015 by PokerMunkee

Wrench589 · February 2, 2015

I asked the tech, Mr. Merck, to post on here in a private message. Don't blame him if he doesn't want to publicly post on this debacle.

He responded with:

"I was convinced of the same thing. We did the headliner/roof bulletin first. It had no effect. However, I have heard that it fixed some trucks."

You can PM him if you have questions, he will probably respond.

Now that is VERY interesting. First time we've heard that the roof fix corrected the noise. I guess it is entirely possible that customers take it in, get the fix done, are happy, and don't go searching for a forum. Why would they bother. So, what we have left here are the few that got "fixed" but not really fixed. Gets back to quality of the workmanship on the fix.

20Sierra14 · February 2, 2015

" I'm sure most owners would rather be doing something else besides stuffing cotton on holes.

Third, it makes us owners look like the buffoons that GM has always said we are. As they read it, I can just hear them saying " hey Bob, look what they think it is now! Ha ha ha." Why does it matter - credibility. When you walk in to the dealership (which I believe you have not done yet) your credibility is already low as the "idiot" customer. As soon as you start talking about stuffing cotton in the microphone, it just confirms to the dealer and GM that you are not credible. And, they will likely treat you as such. And that is not doing any of us any good in this matter.

Fourth, if an owner has a better idea about what the root cause is and is not, they can ensure that the dealership,doesn't go off in a direction that is not appropriate.

.

I'm more than happy looking like a "buffoon" with my cotton balls... You know why? It fixed 95% of the pressure I had... Have you used the idea yet, or have you simply used a cloth and tape? "JasonDenali" had his dealer actually use the idea and it seems to be working for him... Are we "idiots" now?

It seems your vehicle is having more problems than this topic will cover. Have the dealer distroy your truck and replace whatever they see fit... You keep referencing back to the roof fix, when more people have stated it didn't work.. Try the rearend replacement, and like Zip said, post up if that fixes it.

The Zip · February 2, 2015

All - personally, I’m a big boy and I can handle my business whether I’m wrong or right. But don’t trash others for wanting to get some relief for issues the manufacturer does not acknowledge unless you jump through hoops. It’s unfortunate this thread has gotten this big, but this info repeats itself and it would benefit current and perspective owners to read the early pages.

Let's get the thread back on point. I agreed my posts can be shorter, so if I can help (even if its just one person) and I need to say it in longer than 4 lines or so, I’ll send you a private message. At the end of the day, everyone will ultimately do what's in their best interest, regardless of what's posted.

TOBTEK · February 2, 2015

Well. Cotton balls are taped up and ready to take the kids to school. Fingers and toes are crossed.

TOBTEK · February 2, 2015

NOPE! STill booming. Have to call CCC again. Three calls in last week, not one call returned. Really professional guys.

Funny, my father in law rolled up in a new 2015 Mercedes S 550 4 matic this weekend. Hmmm for about the same money, it's in a whole different league! Interesting how the Mercedes doesn't have our booming / buffeting / pressure issue. Or doesn't feel like it's in 14th gear when driving at apx 20 mph. Do you think Mercedes actually does a little R&D and tested their vehicles?

This new new $85,000.00 Escalade is a complete joke! I'm so ready to have a buddy who does vinyl signs make a huge lemon and plaster this thing with them.

Thanks GM for putting your customers through this !

The Zip · February 2, 2015

Tobtek - Deal with the booming, wait for GM, keep complaining to the dealer, or doing something about it are your only options. I know folks laugh and make jokes about the recommendations for doing something about it, my answer to that, So freakin' what. The cotton balls worked in one scenario and Mic Plugs worked in another. Someone else commented their cotton balls made the situation about 5% better. How much movement is in your headliner? If you think it is excessive (compared to mine that does not move at all), the cotton balls will not stay in place. If they don't stay in place around the mic, you shouldn't notice a change. The cotton balls work, but have to be readjusted every so often because of movement.

Edited February 2, 2015 by The Zip

MJS77 · February 2, 2015

I had a Yukon XL on order for approximately 7 months and it was stuck in 1100 status. Apparently the dealer had no allocation and I just pulled the order. I test drove a 2015i Yukon XL Denali with Open Rd / Premium / Enhanced Security Pkg / 22 inch wheels at another dealer about 1 week ago. The vehicle had a build date of 12/14. Drove it for about 20 minutes and developed pressure in my ears which lasted about 2 hours before clearing up. I equate it to like being in an airplane on a flight. I just test drove an Escalade ESV (Luxury - build date of 12/14) today with my wife and while the pressure was not as bad as the Yukon XL, it was still present. I guess it was a blessing that my order was not picked up. This is a legitimate issue with these vehicles and have opted not to move forward with a purchase at this time until the underlying issue/cause is determined and fixed. I want to thank everyone who has contributed to this forum and the information you provide is very valuable. I hope there is a fix soon for everyone that has made a purchase of these vehicles and the situation is corrected. I think the vehicles are outstanding and drive very nice otherwise. I did not experience any issues with "booming noise", just pressure in my ears...