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  1. tagexpcom

    BREAKING: GM is officially recalling the L87

    I do oil changes 'as suggested' by the rig - e.g. my used 2021 Yukon 6.2L was Hertz rental and likely got 'regularly spaced' oil changes. Since I've had it, it seems to like 6K? miles before it shows oil change required. It's at 61K miles and running smoothly. My 2004 V8 SRX is at 170K miles...
  2. tagexpcom

    BREAKING: GM is officially recalling the L87

    Wow! I bought a used 2021 Yukon Denali w/6.2L ~1.5yrs about with 49Kmiles. Have been towing 5500lbs for 12K and now up to 61Kmiles - all with no trouble and LOVE the rig! Yikes - but reading the comments, it seems like this is suspected to be a 5% (of all 21-24 engines) failure? Waaaay to...
  3. tagexpcom

    BREAKING: GM is officially recalling the L87

    I have a 2021 Yukon Denali 6.2L w/61,000miles running fine. GMC has not sent me anything. However, went to GMC VIN lookup and found this What's the recommendation here? Go to the dealer? and they do what exactly? (says "Remedy Not Available") Or... Just not worry at this point since all...
  4. tagexpcom

    2021 Yukon Denali - Navigation/Center Console Freeze

    Just did a long trip thru several western, US states in our 2021 Yukon Denali and the navigation froze as we neared our 1st destination at 25miles to go. Not only navigation but entire console screen and control and apps. None of the physical buttons (such as home or on/off) had any affect...
  5. tagexpcom

    Adaptive Cruise slams on brakes randomly

    2021 Yukon, 6.2L - Just got back from a 3,000 mile trip towing 5,500lb trailer from Oregon to New Mexico thru A LOT of mountainous (non-flat) travel. Used 'tow mode'. I find that adaptive cruise control doesn't do very well to keep up with the set speed. I ran 1000s of miles at a 65mph -...
  6. tagexpcom

    Engine shuts off while driving - SOLVED

    To OP - Sorry you have this to deal with this, you have my sympathies. But very interesting! and thank you all ( OP and Posters) for sharing concise info and events! Following with high interest.
  7. tagexpcom

    LS 4x4 payload

    My 2021 Yukon Denali w/6.2 and mid-level features is 1483 payload. 1848 is 365lbs more. Do you have the 5.3 (maybe it's lighter)? or maybe features can add 365lbs? I understand a Diesel engine can take away 400lbs because they're much heavier. Interesting for sure, and I'm following...
  8. tagexpcom

    Magnetic v. Air Ride - noticeable difference?

    My 2021 Yukon Denali has Magnetic Ride only but the rig is perfectly nice riding for a large vehicle. My 2004 Cadillac SRX has auto air leveling - and I'm assuming a Yukon with air also has auto-leveling? It's the auto-leveling that I miss.
  9. tagexpcom

    Denalis stopping while driving- class action suit?

    You're right - there was a significant (20?mph) headwind and it's a 5400lb cargo trailer - basically a square box and the drag greatly increases as the wind flow speeds up - so maybe 65mps + 20mph headwind is like trying to do 85mph and still accelerate? Was a steep (at least 6% grade), many...
  10. tagexpcom

    Denalis stopping while driving- class action suit?

    I've used "Regular" (87 octane) in my 2021 Yukon Denali 6.2L a couple of times. First couple were before I read about the higher compression / engineering that makes "Premium" (90+ octane) strongly advised for proper running. I also found that I could not make it towing a trailer from...
  11. tagexpcom

    Are Yukons/Tahoes reliable?

    I have a 2004 Cadillac SRX AWD V8 (Northstar) with 175,000miles. It's required A TON OF REPAIRS over the last 20yrs - but it's only 'stranded' me once when I overloaded it towing. Plastic T on radiator overflow hose blew. So far I've had running boards that failed to deploy due to a small...
  12. tagexpcom

    2021 Yukon xl

    1.5yrs ago I bought a used 2021 Yukon Denali. I took it to a local auto-shop for an inspection because everyone says this is good to do and... I'm glad I did even thought they didn't find anything major it's another set of eyes. They did find a minor oil leak on the transfer shaft coming...
  13. tagexpcom

    Towing a rv with a 2019 Tahoe Premier

    Great advice to make sure hoses are in good shape!. Prior to getting our 2021 Yukon we towed with a 2004 Cadillac SRX (NorthStar) V8 with 327HP. Power wise it was great but we had hose issues. There's a small (3/8"?) hose from the radiator cap -> engine -> fluid reservoir. There's a...
  14. tagexpcom

    Tow hooks on 2023 Denali

    Matt from Matt's Off Road Recovery would give you a thumbs up :)
  15. tagexpcom

    Service Suspension System message

    Yes sir, thank you for mentioning it - we visited the restaurant at Fort Rock a year (or 2) ago and learned about it and it's on our bucket list! We love "Silver Creek Marsh Campground" (10miles south of Sliver Lake) and want to plan a stay there with evening at Dinnertree which we...
  16. tagexpcom

    Service Suspension System message

    The worst I've done (so far) is go out to Virgin Valley Campground and nearby Opal Mines off Highway 140 - about 1/2 way between Lakeview OR and Winnemucca NV. Driving the mile (or so) from the campground to the little canyon view point there was sage brush that brushed the side of the car...
  17. tagexpcom

    Service Suspension System message

    Fixed but not cheap! ... $633.25 Took Thu -> Monday for the part to ship/arrive and was $329.13
  18. tagexpcom

    Service Suspension System message

    After weekend camping out in the Oregon High Dessert and 20F lows, my 2021 Yukon Denali with 59K miles showed the "Service Suspension System" on the console. I pointed the shop to this thread and it seems to be right on as far as the repair needed as they said it looked like a 'stick' or...
  19. tagexpcom

    Trailer brake missing on my 22 Tahoe

    I bought a used 2021 Yukon Denali that didn't have a controller. I added a Curt and the knob goes where the OEM controller would have gone and works A-OK. Unfortunately it's not integrated with vehicle software and you don't get auto anti-sway? (not sure how effective that would be) but that...
  20. tagexpcom

    Do you have to readjust the positioning of the HUD every time you start the car?

    21 Denali - I do not have to adjust.
  21. tagexpcom

    Coolant temperature fluctuations normal??

    Another thought. Fans are electric these days. Our 2004 Cadillac SRX started overheating in stop-go traffic (big city interstate type stop-go) but would be fine the rest of the time, back home at smaller city traffic. Turned out it was the fan not running at low speeds but fan was running...
  22. tagexpcom

    Coolant temperature fluctuations normal??

    How warm is the ambient temps when you're seeing this? 70F is one thing, 100F is another perhaps. I'm no mechanic but in my experience, it should hold steady once it reaches the top temp. Seems like a competent auto-shop can answer this question definitively. I like the advice above to...
  23. tagexpcom

    2021 Yukon - No Key Found - No Start Condition (update 11/9)

    Did you get that ear-splitting screech (alarm?) when you disconnected the negative terminal? or is this just me and my 2021. It's not mentioned in the youtube.
  24. tagexpcom

    2021 Yukon - No Key Found - No Start Condition (update 11/9)

    Yes, one of the 1st things I did was put in a brand-new battery as my experience has been ~5yr life spans for my 2004 Cadillac SRX and 2011 CTS. I wanted to start the clock fresh on this used Yukon purchase because who knows about previous battery and so I can be extra alert in year 4-5.
  25. tagexpcom

    2021 Yukon - No Key Found - No Start Condition (update 11/9)

    In the FOB - yes, the 1st 2 times I got the message I immediately changed the battery. This was within a 6 week time frame. Now, I just ignore the message as a battery should last a couple of years. Glad to hear it! and sounds like 'low battery' havoc until we get a better theory.

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