2015 YUKON NOISE IN CABIN

jrk · September 28, 2015

Wrench,

Would you please explain what a TSB is as you noted above. Thank you. Jrk

Wrench589 · September 28, 2015

Technical Service Bulletin.

ajs800 · September 28, 2015

Anyone here aware if the TSB issued on July 30th is a real fix for the buffering / cabin pressure issue? We recently purchased a used yukon xl slt and it has this issue. I really like the truck but can't stand to own it much longer if there's not a real fix for this issue. We purchased it from a non GM dealer so I think we are pretty much out of luck with any buyback option. It was a 1yr corp lease with a 7/14 build date.

yahtzee · September 28, 2015

I just gave the cotton ball and tape suggestion a shot and noticed no improvement re: the buffeting/pressure issue.

Wrench589 · September 29, 2015

Anyone here aware if the TSB issued on July 30th is a real fix for the buffering / cabin pressure issue? We recently purchased a used yukon xl slt and it has this issue. I really like the truck but can't stand to own it much longer if there's not a real fix for this issue. We purchased it from a non GM dealer so I think we are pretty much out of luck with any buyback option. It was a 1yr corp lease with a 7/14 build date.

Exactly which TSB are you referring to?

ajs800 · September 29, 2015

Exactly which TSB are you referring to?

Well, I thought it was an update to the one that involves removing headliner and resealing but I'm not sure if it's an updat or not as I believe it reads the same as the one issued much earlier. I have yet to talk to my local dealer (did not purchase from them) regarding a fix but it's amazing to me that this issue hasn't been resolved by now.

Edited September 29, 2015 by ajs800

yahtzee · September 29, 2015

My understanding is that a TSB is a fix. The ones from July are PI's. I forget what PI stands for but I haven't heard anyone having the issue fixed from the July 30th info.

ajs800 · September 29, 2015

Thanks for the clarification. I take it there is still no improvement/fix for this issue? I clearly have the pressure/buffeting issue but no other issues with truck which makes even more frustrating.

I have read that it could be the ANC and also saw that if you put it in "tow mode" that it instantly goes away (need to test this scenario)...seems like the causes are all over the place anything from drive train, engine, cabin, anc, headliner / sheet metal, etc. I just don't get it.

Edited September 29, 2015 by ajs800

20Sierra14 · September 30, 2015

It's been six months and the cotton balls still are working for me.

After a few weeks of the tape being in the heat, it'll start to fall and expose the openings for the mics and I'll start to feel a little pressure again. The cure is to pull the 4 cotton balls I have stuff in and around the mic openings and install new tape and cotton balls.

Zero headaches and pressure. Again, our truck has no buffeting issues, though. Just ear pressure that would bring tears to your eyes!

Wrench589 · September 30, 2015

Thanks for the clarification. I take it there is still no improvement/fix for this issue? I clearly have the pressure/buffeting issue but no other issues with truck which makes even more frustrating.

I have read that it could be the ANC and also saw that if you put it in "tow mode" that it instantly goes away (need to test this scenario)...seems like the causes are all over the place anything from drive train, engine, cabin, anc, headliner / sheet metal, etc. I just don't get it.

Unfortunately, putting the vehicle in tow-/haul mode does not help. At least, didn't for me and no one else reported that it helped as I recall.

This has been going on since last year. No solid fix to date. As unbelievable as it is, that's the situation. I think many of the folks that were regular posting have either given up or sold he vehicle and moved all. The amount of posts per day has drifted down, but the problem is still there and no fix in site. And yes, the potential causes have been all over the map, but speculative at best and nothing in the way of a fix.

Welcome to the hard-luck club!

Edited September 30, 2015 by Wrench589

ajs800 · September 30, 2015

It's been six months and the cotton balls still are working for me.

After a few weeks of the tape being in the heat, it'll start to fall and expose the openings for the mics and I'll start to feel a little pressure again. The cure is to pull the 4 cotton balls I have stuff in and around the mic openings and install new tape and cotton balls.

Zero headaches and pressure. Again, our truck has no buffeting issues, though. Just ear pressure that would bring tears to your eyes!

I believe your issue is due to the overpowered ANC system that you are basically reducing effectiveness with an end result of less cancellation. However, I have an SLT and to my knowledge does not have the ANC system. From what I can tell I have the true cabin pressure (buffeting) problem only. From what little and short research I've done to date it seems as though the denali and escalade are having mag shock and ANC issues in addition to the buffeting/pressure issue.

ajs800 · September 30, 2015

Unfortunately, putting the vehicle in tow-/haul mode does not help. At least, didn't for me and no one else reported that it helped as I recall.

This has been going on since last year. No solid fix to date. As unbelievable as it is, that's the situation. I think many of the folks that were regular posting have either given up or sold he vehicle and moved all. The amount of posts per day has drifted down, but the problem is still there and no fix in site. And yes, the potential causes have been all over the map, but speculative at best and nothing in the way of a fix.

Welcome to the hard-luck club!

Thanks. Yes, I tested the "tow" function with no change as well. Given GM has had over a year to work on this and still don't have a fix makes me instantly think it's a design flaw, but if that were the case wouldn't it be an issue with all of them? Also, if I recall all chevy and gmc models have this issues...all trim levels, wheels sizes, etc.?

I really don't want to have the headliner removed but I wonder if it would reduce my issue as I don't have the "boom" shock noise and/or the noise cancellation problems that seem to be part of the denali issues.

I'm not expecting anything, but I opened a case with GMC customer service and I'm currently awaiting a call from a serv rep. This whole thing is ridiculous.

Edited September 30, 2015 by ajs800

The Zip · September 30, 2015

I really don't want to have the headliner removed ......

I'm not expecting anything,.......

This is a catch 22. At this point, I think these TSBs are issued to pacify customers, not as a real fix to the many issues. But if you are fortunate enough to have your vehicle bought back by GM, the TSB work will probably be used by GM as a pre-condition to the buy-back. If you don't get the TSB work done, your expectation of GM customer service is probably correct.

Prior to the TSBs being issued, 1 fella on this forum had his vehicle bought back by GM without any corrective work being done. It was due to his state having a 72 hr Lemon Law. The remaining half dozen or so folks with a buy-back had one or all of the TSBs completed.

Edited September 30, 2015 by The Zip

ajs800 · September 30, 2015

This is a catch 22. At this point, I think these TSBs are issued to pacify customers, not as a real fix to the many issues. But if you are fortunate enough to have your vehicle bought back by GM, the TSB work will probably be used by GM as a pre-condition to the buy-back. If you don't get the TSB work done, your expectation of GM customer service is probably correct.

Prior to the TSBs being issued, 1 fella on this forum had his vehicle bought back by GM without any corrective work being done. It was due to his state having a 72 hr Lemon Law. The remaining half dozen or so folks with a buy-back had one or all of the TSBs completed.

Thanks! I didn't purchase brand new so I'm most likely out of luck re a buy-back. If we can't live with it, we'll probably take a small loss and trade it in. I'd like to find one on a lot that doesn't have the issue and just trade in for same vehicle but unsure if it's worth taking that chance. There's really very few options vehicle wise (4kids with lots of road trips)...maybe just go with a pre 15 model, again.

Thanks again for the shared info.