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  1. E

    Poll on lifters

    2021 Yukon Denali, failure at 30k miles and failure at just under 36k miles.
  2. E

    2021 Denali Diesel 3K miles engine and transmission issues

    Sorry to hear you’re experiencing this. What’s crazy is, that barrage of error messages you mentioned are what many of us have experienced when lifters have failed. I’m not mechanically inclined at all but I assumed that the diesel and gas engines don’t share much of the same technology like...
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    Service rear axle? 2021 AT4 Yukon

    Reviving this dead thread. Just recently got the “Service Rear Axle” message again. Brought it to my local GMC service dept. and they found nothing wrong even after scanning for error codes. Got the shoulder shrug and they said they were not sure why that message showed up since these new...
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    Denali subwoofer and amp install 2022

    Check out this subwoofer thread from 2020/2021. Has some info regarding ANC. Thread 'Aftermarket sub' https://www.tahoeyukonforum.com/threads/aftermarket-sub.123168/
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    “Heater Performance Mode Active” Message / Extreme Cold Outside

    This is what I found on the interwebs, Heater Performance Mode (8-Cylinder Models Only) When cold weather conditions are detected, the transmission raises part throttle upshift points after the 1 (First) to 2 (Second) upshift to increase engine speed. This feature shortens engine and cab warm...
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    Auto stop perminant disable?

    I can confirm, this worked on my 2021 Yukon Denali. Works exactly as it’s supposed to. I wish GM could have just made the Auto Stop button like this in the first place.
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    Max tire width, no lift/level

    I second this. Been driving around with these Open Country A/T3’s and it’s not much more road noise than stock. It’s a slight difference, hardly noticeable at all.
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    Max tire width, no lift/level

    These ones are not E rated, but they do make an LT285/50R22. I bought mine through a local mom and pop tire shop. Checked with Big O, WheelWorks, and Americas Tire; all said it was back ordered nationwide. The small shop I went through likely had a different distributor, they sourced 3 tires...
  9. E

    Max tire width, no lift/level

    Thanks for the inspiration. Went and got a set of Open Country AT3’s installed today. I can confirm for anyone wondering if there’s any rubbing with 305/45r22 on the 2021/22 Yukons and Tahoes w/ adaptive air ride. There is no rubbing whatsoever even with the air suspension actively changing ride...
  10. E

    Max tire width, no lift/level

    I love the way those look on your Tahoe High Country. You got me thinking about doing the same on my Yukon Denali. Mine has air ride though and its pretty active. Anyone out there know if 305/45r22 works on a 2021 Tahoe/Yukon with air ride without any rubbing?
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    Service rear axle? 2021 AT4 Yukon

    Did the dealership ever figure this one out? This just happened to me yesterday at around 200mi of a 400mi trip down to Souther California. Everything seemed fine, made it down to SoCal but worried about the trip back up. I’ve got about 24k miles on my 2021 Yukon Denali.
  12. E

    Add Bass/Sub to 2021 z71 Tahoe

    Hey there. Check out this thread from last year. Aftermarket sub
  13. E

    Concerns with new generation Yukon

    No issues with my Yukon Denali (Ultimate Package). Purchased back in October last year. About 7 or 8 family road trips, my daily driver, and 11k miles later still rolling strong.
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    Aftermarket sub

    Update: My car audio installer called me this evening. He says he doesn't think the new Tahoe/Yukons have ANC anymore. Said he worked on two 2021 Chevy Tahoes today with the 10-speaker Bose systems and neither of them had ANC.
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    Aftermarket sub

    So I was able to speak with my car audio guy. Excuse my crappy explanation. He mentioned that since I have the Denali, the Denali has the 14-speaker Bose system. The 14-speaker Bose system includes a small (underwhelming) subwoofer located behind in the left side trunk panel. He said since there...
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    2021 Yukon Subwoofer?

    Pretty flat IMO. The bass output was nothing substantial compared to the bass output of the door speakers. Ended up adding an after market sub to mine. Check out the “Aftermarket Sub” thread in this forum.
  17. E

    Am I the only one?

    Same. I bought my 2021 Yukon Denali back in October as well. Got quotes from 7 dealerships, 2 said the Yukons are so "hot" they're selling at or over MSRP. Knew that was total BS. I whittled down my selection to 3 that were willing to really make a sale. Dealership that got my business gave me...
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    Change WiFi carrier on 2021 yukon

    Not sure how much T-Mobile's connected car service costs, but you find that AT&T ends up being your only option, you could potentially negotiate the monthly price down if you're an AT&T subscriber of any of their services. I'm already an AT&T subscriber for my personal and work phones, and TV...
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    Wireless CarPlay skipping

    The same thing happens fairly often in my new Denali. I'd say it happens maybe 10% of the time. Another annoying thing that happens fairly often is that CarPlay just outright doesn't even connect to my iPhone, wired or wireless. At first I thought it might be my phone specifically, but then I...
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    Aftermarket sub

    So I didn’t install this myself, I had my local car audio shop do this for me. Originally I was planning on moving my old wedge style sub enclosure to my new Yukon, but ended up seeing this new powered sub in the shop’s showroom and testing it out. It actually sounded better than my old sub...
  21. E

    Aftermarket sub

    I was in the same boat as you. Didn't want to sacrifice much trunk space but wanted fuller sound. I couldn't find a solution that would work in the lift gate or under the side panels. So I ended up getting one of these, JL Audio 12TW1 PowerWedge+. It has a pretty slim profile, allowing me to...

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