2015 YUKON NOISE IN CABIN

CC911 · February 18, 2016

Has anybody tried disconnecting the Active Noise Cancellation fuse to see if that helps with the buffeting feeling yet? My Bose noise cancellation headphones give an intolerable buffeting sensation on my eardrums during takeoff in a plane. I haven't been able to read thru the whole thread, so sorry if I missed this, but I'm considering one of these trucks. The ANC in particular concerns me. Some people can't tolerate the pressure sensation in the ears caused by ANC even when it's working right... My girlfriend being one of them.

Zig10 · February 18, 2016

Has anybody tried disconnecting the Active Noise Cancellation fuse to see if that helps with the buffeting feeling yet? My Bose noise cancellation headphones give an intolerable buffeting sensation on my eardrums during takeoff in a plane. I haven't been able to read thru the whole thread, so sorry if I missed this, but I'm considering one of these trucks. The ANC in particular concerns me. Some people can't tolerate the pressure sensation in the ears caused by ANC even when it's working right... My girlfriend being one of them.

Yeah, unfortunately it didn't seem to fix the issue. I think it was back around page 50-60. Cotton balls and tape over the mics helped at least one person to some extent, but the results weren't consistent. When the fuse was pulled it had no effect on the pressure sensation, if I recall.

Wrench589 · February 19, 2016

Has anybody tried disconnecting the Active Noise Cancellation fuse to see if that helps with the buffeting feeling yet? My Bose noise cancellation headphones give an intolerable buffeting sensation on my eardrums during takeoff in a plane. I haven't been able to read thru the whole thread, so sorry if I missed this, but I'm considering one of these trucks. The ANC in particular concerns me. Some people can't tolerate the pressure sensation in the ears caused by ANC even when it's working right... My girlfriend being one of them.

I pulled the fuse the ANC system on mine and it made no improvement at all.

jasondenali15 · February 19, 2016

I tried the cotton ball thing back in the day...did not help with the buffeting and ear pressure. Cabin just made some really crazy sounds...

Ozzii · February 21, 2016

Which fuse is the Anc? I may try to pull mine just to see. Im desperate to try anything.

FogDucker · February 21, 2016

Which fuse is the Anc? I may try to pull mine just to see. Im desperate to try anything.

IIRC, #48. It's the "amp" fuse on the passenger side.

It had zero influence on the buffeting.

Ozzii · February 24, 2016

I've had my Yukon back from dealership visit #3 and am pleased to report that I now enjoy driving my Yukon at all speeds!

To recap, I had booming, buffeting and vibrations. Work done on visits #1 and #2 included:

road force balancing sessions

3 tires were replaced; 20" Continental; more road force balancing

rear axle replacement; rotor to rotor <-- this eliminated all vibration IMHO

headliner removal & inspection <-- bows were intact

Last week's visit included:

hatch inspection/alignment; it now closes with a solid thud; seals were not replaced

3 tires were replaced with 'certified' 20" Continentals; more road force balancing

replacing or installing 6 vibration dampers on the exhaust system; I have no specifics; 3rd hand information

I've driven nearly 400 miles since I picked it up - the buffeting is pretty much gone. I have to actively listen for any buffeting and if I do hear anything, it's barely perceptible. It might even be in my head - more time behind the wheel will ultimately tell. I can't comment on the booming as I haven't driven on snow covered or gravel roads. I will say that it hasn't bothered me in the last week with mixed rural and city driving.

In addition to all the parts & labour listed above, I was able to have GM Canada add additional warranty to my Yukon and my dealership will cover the cost of road force balancing my K02 "snow shoes" which I'm going to keep. Those should be installed in the next week or so, just in time for my 1500 mile drive down to sunny and warm Florida.

As ChrisM. above pointed out, the key is to have a dealership that is ready and willing to support complicated and someone subjective issues that this thread covers. The service manager at my dealership was receptive and great to deal with - I got lucky. The other key was to get GM Canada's "Executive Review Team" involved who ultimately dispatched a knowledgeable field engineer that methodically chipped away at it. I do believe that GM engineers from Michigan got involved at some point too.

All in all, not the ideal car buying experience, but this comes with the territory with buying the first year of a new model.

GM made things right in my books. Fingers crossed that time does not change that.

I wish you could get the part numbers for the vibration dampers. My service said if I could get the part #s they would try in on my Tahoe.

Edited February 24, 2016 by Ozzii

FogDucker · February 24, 2016

I wish you could get the part numbers for the vibration dampers. My service said if I could get the part #s they would try in on my Tahoe.

The invoice did not include part numbers for the dampers - it was simply mentioned in the comments. I'll see if I can dig up any details.

Quick update: I'm still buffet free. The truck is perfectly smooth to 160km/h. With some recent snow, there is a slight booming sound when driving over packs of snow which I'll likely hear on gravel roads too. I can live with that. The low speed boom over expansion joints and concrete transitions is gone.

Ozzii · February 24, 2016

The invoice did not include part numbers for the dampers - it was simply mentioned in the comments. I'll see if I can dig up any details.

Quick update: I'm still buffet free. The truck is perfectly smooth to 160km/h. With some recent snow, there is a slight booming sound when driving over packs of snow which I'll likely hear on gravel roads too. I can live with that. The low speed boom over expansion joints and concrete transitions is gone.

I really appreciate that ;) If I could get the low speed booming between 1 and 30mph when hitting expansion joints and concrete transitions to go away I would be a happy camper.

cltsig · February 25, 2016

I really appreciate that ;) If I could get the low speed booming between 1 and 30mph when hitting expansion joints and concrete transitions to go away I would be a happy camper.

Agreed. The low speed booming is annoying. My 2016 Yukon Denali 2wd 20" has also developed a vibration at highway speeds. Just don't have time to take to dealer yet but will soon. Hopefully they play ball.

FogDucker · February 25, 2016

Agreed. The low speed booming is annoying. My 2016 Yukon Denali 2wd 20" has also developed a vibration at highway speeds. Just don't have time to take to dealer yet but will soon. Hopefully they play ball.

What kind of tires do you have? Continentals? Does it peak at 70mph?

I've asked my Service Manager to ask the field engineer who installed the dampers for more details. I've also asked GM Canada's review board liaison (who I escalated my case with) to provide more details. I'll share any feedback.

cltsig · February 25, 2016

What kind of tires do you have? Continentals? Does it peak at 70mph?

I've asked my Service Manager to ask the field engineer who installed the dampers for more details. I've also asked GM Canada's review board liaison (who I escalated my case with) to provide more details. I'll share any feedback.

Yes, Continental ContactPlus LX20 if my 2 minute short term memory is correct. It vibrates from 55mph at least through 70 but haven't analyzed a peak. It has just started with ~1600 miles on the odometer. Low speed booming has been present from day 1 but was deemed acceptable compared to the buffeting and vibrations felt on others we test drove.

I would love to hear more about the exhaust dampers. It sounds like the dampers absorb or dissipate the boom and thus, the factory dampers are too stiff? I wonder if others have had success eliminating the boom with new dampers.

FogDucker · February 25, 2016

Yes, Continental ContactPlus LX20 if my 2 minute short term memory is correct. It vibrates from 55mph at least through 70 but haven't analyzed a peak. It has just started with ~1600 miles on the odometer. Low speed booming has been present from day 1 but was deemed acceptable compared to the buffeting and vibrations felt on others we test drove.

I would love to hear more about the exhaust dampers. It sounds like the dampers absorb or dissipate the boom and thus, the factory dampers are too stiff? I wonder if others have had success eliminating the boom with new dampers.

Yep, same tires as me. It took 6 replacements to eliminate the buffeting. Check out post #1976 for feedback about the LX20s from other drivers.

The buffeting returned slightly when I put my AT tires on with the worst at 18lbs. Had them corrected to 12lbs or less and it disappeared again.

15lbs or less on a Hunter RF balancer is the key!

In regards to the dampers, I'm unsure if they even came from the factory - these could be net new parts. The only chance I've had to inspect the underside was when I was having my AT tires RF balanced - after the 6 were installed.

Wrench589 · February 28, 2016

Update....

Well, a few weeks ago I reported that with the new 20" winter wheels and tires in, the vehicle was very good. Buffeting and boom all but gone. Well, that changed! We went on vacation and the vehicle sat for 9 days straight. And now, it's back to the way it was with the original tires. It it real bad the first 10 or 20 km, and then quite a bit better. But still not as good as it was before we went away.

Weird? I guess the whole flat-spotting of the tires is a big deal with these vehicles. Of course, it just proves what we've been saying - that these vehicle are overly sensitive to any and all vibration disturbances, and tire are a big one. But of course trying to keep perfect tires on the vehicle is next to impossible. In my case, I was pretty happy wi this new winters, but let it sit around too long and all hell breaks loose again. Now, those tires a "defective" by GM standards, but let's face it... Not being able to let your vehicle sit idle for too long it not practical. And, my F-350 sits for weeks at a time and runs smooth as new when I drive away. Although, I did notice my Explorer had a pretty solid tire vibration for the first trip after we got back from our trip, but it's all smoothed out again. So, flatspotting it definitely a factor, but the GMs are just too damn sensitive!

Del Cee · February 28, 2016

I'm hoping it's a rear end thing and not tires. I'm sure later down the line if you get after market tires on your own tgey ain't gonna be watching them for you