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2015 YUKON NOISE IN CABIN

FOURKNUCKLES
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FOURKNUCKLES
FOURKNUCKLES

ANYONE ELSE HEARING LIKE A BUFFERING SOUND? MAKES YOUR EARS FEEL LIKE THE WINDOW IS DOWN, BUT IT IS NOT? I TOOK IT BACK TO THE DEALER, THEY HEARD IT. WE GOT IN ANOTHER 2015 YUKON XL AND HEARD THE

jer1346
jer1346

I've had my 2015 Yukon XL back for 1 day after it was in the shop for over 3 weeks (this time). The buffeting is the exact same, with no improvement whatsoever. I am having 500 cheap business cards p

FogDucker
FogDucker

Hi all,   I created an online survey to better quantify the issues surrounding our trucks. The goal is to get more accurate numbers. The survey is open to *everyone*, including those with no vibra

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Free2b Enthusiast

Free2b

Posted
Posted

 

TOBTEK, I don't doubt your issues one bit, but the majority of complaints seem to be with the longer version. Off the top of my head, I think maybe you and one or two others in this entire thread. Perhaps it is just more noticeable in the longer version? More roof sheet metal to be flexing and vibrating.

 

The fact that your wife thinks the new Escalade is wonderful supports the theory that some people are more sensitive to this issue than others.

Free2b Enthusiast

Free2b

Posted
Posted

I just purchased a 2016 loaded yukon 1 week ago, paid $73,825. Since day 1 I have had issues with vibrations and road notice. Going back to the dealer tomorrow and thinking of parking in their front door and leaving it there! I am so angry, this thing rides like a log wagon. I have an older Denali and it's amazing. I cal j ed GMC this morning and BBB and an attorney! Not a happy camper

Road Noise **** typo!

Free2b Enthusiast

Free2b

Posted
Posted

Dadof4: Go to a physician...document your headaches. Your wife too. Miss a few days from work. Take them down the path you intend to go. Their story will change. They know if you can spend $73k for a truck, you can afford a good attorney.

 

There is a regional customer service person which actually handles buybacks. The exact title is "District Manager, Aftersales." Your dealer gets the approval from this person. Your dealer has a say, not the entire say so in the matter. I would seek out this person immediately.

 

As a reminder, I had TWO GM buybacks. The dealer was told what to do by the District Manager. They knew which direction I was going to go if I did not get my satisfactory resolution. I received full payment on both buybacks. Stay firm and demand the contact info of the DM. Go behind the dealer's back to have the decision made for him.

 

To all those having the issue: there is NO solution! My statement above is the answer for the short-term. I was 2 for 2 in buybacks for this poorly designed vehicle. This method, aka, the TRUTH, works.

 

Walk loudly and carry a very big stick. Let them know it's going to hurt.

Free2b Enthusiast

Free2b

Posted
Posted

I just purchased mine a week ago and it's been in the shop for the 3rd time tomorrow .. thanks for the posts! I am furious to say the least!

boazEarl8 Enthusiast

boazEarl8

Posted
Posted

Free2b I agree with Jason, but I guess we have different methods .. luckily no GM buybacks, but in other situations, I was always very polite, professional but firm with my dealer, and made sure to keep my dealer on my side, I always thought having them on my side helped rather than hurt

Ozzii Enthusiast

Ozzii

Posted
Posted

I had some issues with my 2016 Tahoe radio freezing up.Brought it in to the dealer and they updated the software and alot of the booming I had at low speeds has improved alot. Weird huh?

The Zip Senior Enthusiast

The Zip

Posted
Posted

....Tahoe radio freezing up...dealer updated the software and alot of the booming at low speeds improved alot. Weird huh?

 

Not really, especially if software programming involved mics, speakers, and amps. This thread went down that road pages back, but booming talk was early in the process. I don't remember reading anything where an update to radio software helped with the booming.

 

What happened when your radio froze up and what was the TSB?

Ozzii Enthusiast

Ozzii

Posted
Posted (edited)

Dont know if there was a Tsb, Ill crab the receipt and snap a pic. My radio would either lock up and I could only change the station by the steering wheel controls, or it would have a black screen and display CAL where the north south Directions display in the lower left hand display above the steering wheel display. They also replaced the bearings and steering wheel column due to popping when I turned the steering wheel. They said they downloaded an update to the radio, but I am definitly getting a lot less low speed booming now ;)

Edited by Ozzii
The Zip Senior Enthusiast

The Zip

Posted
Posted

Dont know if there was a Tsb...they said they downloaded an update to the radio, but I am definitly getting a lot less low speed booming now ;)

 

Usually you won't know about a TSB until you take your truck in for some other maintenance, then the service tech will ask if you want it done. But folks with the booming may want to mention radio software update next time the truck is in for service. My truck does not boom, but the radio update info is good to know if it does, thx.

1TallCampbell New Member

1TallCampbell

Posted
Posted

Joining the chorus: 2015 Yukon Denali, vibrating and booming so bad that it made my kids car sick. However, I strongly suspect it's resonate frequency and the booming (coming from the active noise cancellation) is an effect; not the problem.

 

For those who may not know, Active Noise Cancellation (ANC) is essentially noise cancelling headphones. Noise is produced as a sine wave. Noise cancelling headphones have microphones built in to measure the wave and outputs the exact opposite wave called "destructive interference". The end result is an absence of sound because the two waves cancel each other out (here's a good visualization). Here's the tricky part: it takes both sound waves (the sound you want the cancel, and the opposing sound put out by the ANC) to get the "silent" destructive interference. And, the truck determines amplitude by the aggregate of all the microphones.

 

So here's what's happening: the microphones are hearing that the passengers don't hear. Since all the microphones are hearing it, the truck thinks its really loud and calls for the maximum cancelling wave. The "booming" is because the passengers are only hearing the cancelling wave from the subwoofer, but not the input wave the microphones are hearing. So the booming is caused by the vibration; the people who have booming but no vibration may just not be feeling the vibration, but the truck absolutely does.

 

Lowering the suspension is partially working because it's introducing a different frequency. It's disrupting the resonate frequency that is resulting in the booming.

 

 

Unfortunately, there's no quick fix, only mitigation. The weight reduction efforts lead to thinner metal that can't absorb the initial vibration. The truck heavily relies on the ANC to quiet the cabin down...they have an unacceptable amount of road noise without it. The 5.3l 6spd are less pronounced and may be an option, but wasn't for me.

 

For me, the 15th time to the shop was the deal break. I traded the truck towards a Range Rover.

Elripster Enthusiast

Elripster

Posted
Posted

It is definitely a resonant frequency issue, however trucks without ANC have booming just as trucks with it do so I am going to say it is due to the body being highly susceptible to typical road inputs which is the opposite of how the body should be designed. ANC might not be capable of damping the booming noise. As you mentioned, the thinner metal is most certainly a large part of the issue. Disrupting the disturbing frequency can help but only so much. The body is the issue.

 

The Dynamat applied to the inner roof of my truck by my dealer pretty much killed the booming. Booming is ever so slight and most people cannot hear. One rear roof bow is not attached and I have a slight bit of buffeting. I will say, when all the roof bows are attached, and with the Dynamat, the truck is perfect.

 

Frank

ajs800 Enthusiast

ajs800

Posted
Posted

 

 

Unfortunately, there's no quick fix, only mitigation. The weight reduction efforts lead to thinner metal that can't absorb the initial vibration. The truck heavily relies on the ANC to quiet the cabin down...they have an unacceptable amount of road noise without it. The 5.3l 6spd are less pronounced and may be an option, but wasn't for me.

r.

 

No ANC here with our XL SLT and I'd say the ride is very very quiet. The overall ride is not quite (too firm and rough) there but I'd say the cabin / road noise is very satisfactory and close to on par with many higher end vehicles, IMO.

Del Cee Enthusiast

Del Cee

Posted
Posted

No ANC here with our XL SLT and I'd say the ride is very very quiet. The overall ride is not quite (too firm and rough) there but I'd say the cabin / road noise is very satisfactory and close to on par with many higher end vehicles, IMO.

 

So we have one with out the problem

ajs800 Enthusiast

ajs800

Posted
Posted

So we have one with out the problem

 

I am only referring to the quiet cabin...our SLT doesn't have the ANC and it's a very quiet re road noise. We do have the buffeting issue that I pretty much resolved for the moment with 4 tire/wheel changes!

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