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  1. T

    What’s the consensus on the Duramax reliability?

    Just FYI, as I have seen you make this comment previously. The powertrain warranty is 5yr/100k. I wish it was 6, haha!
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    Telematics Module

    Thank you! I actually replaced the battery recently because I had noticed weaker starting performance in cold weather (the codes were persistent with the old and now new battery). I will give the terminals a good brush. You think the BCM code is potentially not related to the telematics module...
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    Telematics Module

    The telematics module in our 2022 Yukon has also been acting up. The OnStar light goes between green and no light or vice versa, sometimes even within one drive cycle. I could care less about the onstar service, but when the unit goes offline it also ends up throwing a P00FF/U1962 CEL. Very...
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    2022 Chevy Suburban Rear groaning noise when turning

    I also had the groaning noise coming from the rear differential. Shockingly, GM made replacing the rear diff fluid easy.... with both a fill plug and drain plug. The video above is helpful, but the oil used is incorrect. The G86 does not require friction modifier, and the correct gear oil is GM...
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    2025 Yukon Denali first 1700 miles

    Highway mileage will vary quite a bit in my experience, throw a regen in there and it can really seem "off." Your DEF use is also completely normal. I have no idea how Stbentoak gets 5000 miles on a 2.5 gallon jug. I might hit half that so ~2.5 gal every 2500 miles. And since DEF use correlates...
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    Code P06DD thrust bearing issue...

    Exactly why I am personally still running 0W20 Dexos D during the warranty period. I recently switched to Castrol Turbo Diesel Dexos D 0W20 (from AcDelco) and hope to see a decrease in wear metals, especially iron.
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    Code P06DD thrust bearing issue...

    Speediagnostix is a very reputable source. Their videos on oils/filters (The Motor Oil Geek) are very informative. The Mobil 1 0w30 ESP, from my understanding, is the same base formulation of that of the Dexos D certified 0W20 ESP. The 5W30 Dexos D oils are for the for 2.8L. UoAs for the 3.0...
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    Thoughts on purchasing a higher-mileage Duramax?

    Very early 2022 (Early October 2021 build). I feel like for the 2022s, it is a double-edged sword. The early 2022s have all options and none of the "later retro-fit" garbage. So ours has all the 4way lumbar, parking sensors, etc etc. But I do think the later the build for the LM2.... the better.
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    Thoughts on purchasing a higher-mileage Duramax?

    There is no VIN range, it is dependent on the serial number of your camshaft housing. If your camshaft housing serial number is less than 21298JDXXX, you are within the range for the TSB (22-NA-027). The serial number is very easy to check. It is at the very front left (passenger side) corner of...
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    Thoughts on purchasing a higher-mileage Duramax?

    My take as fellow 3.0 owner (2022 Yukon XL) is to buy the newest model year you can, especially for the LM2 diesels (2021-2024 for the SUVs). The early LM2s do have issues, which I have confirmed after befriending the diesel mechanic at our dealership. Areas to look out for per the tech: 1...
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    21 Yukon Rainsense Wipers

    Almost the exact same issue happened with ours following glass replacement. The dealer replaced the sensor under warranty (got lucky there) and it has been working ever since.
  12. T

    New Yukon SLE or Used SLT?

    Nice find. Thank you!
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    New Yukon SLE or Used SLT?

    The leather on the SLT is nothing to write home about for sure. Just the center of the seat and backrest is leather for the front and 2nd row. The rest of the seat along with the entire 3rd row is a pretty cheap feeling pleather. Very disappointing materials for something with a 75k+ MSRP.
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    New Yukon SLE or Used SLT?

    I think this really depends on your use case. We have a 2022 XL SLT and were also on the fence between a new SLE vs CPO SLT. I wanted the front bench seat of the SLE, but there were just too many missing features on the SLE. Things that stuck out to me (not sure of 22 vs 24 SLE standard options...
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    The 2025 GM order guide is live

    The LM2/LZ0 have been selling well (as far as I can tell), so I would think as long as they continue to make money for GM we will continue to see them as an option. On the plus side for you, the LM2 SUVs seem to be holding their value significantly better than their 5.3 and 6.2 counterparts.
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    The 2025 GM order guide is live

    https://www.gmfleetorderguide.com/map But yea, no pricing available. Looking through the standard options vs the Tahoe/Suburban it looks like GM is trying to differentiate the Yukon as the more "upmarket" choice. The Base Elevation seems to be somewhere near a 2024 SLT with Premium/Lux package...
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    What's actually included with the Max Trailering Package?

    Max Tow gives you the 2spd T-case on the lower trims. For the Yukon, I recall the 2spd being standard on the Denali regardless of Max Tow. For the SLE/SLT the Max Tow got you the 2spd. On the Tahoe/Suburban, the LS/LT/RST would get the 2spd with the Max Tow, and Premier on up had the 2spd...
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    Feature / build differences: MY2024 Suburban RST vs. Yukon XL SLT

    Another difference, at least back in 2022, was that GMC offered OnStar service for three years as part of the purchase price. The Chevrolet "trial" period was significantly less... maybe 3 mo? If you plan on using these apps, it may be worth confirming.
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    Oil Around Turbo/Compressor Outlet

    Perfect! Thanks for sharing that link, looks like a simple fix. Good to know in case the dealership pushes back on repair via warranty.
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    Oil Around Turbo/Compressor Outlet

    Hello, I am new to the forum and just recently purchased a CPO 2022 Yukon XL with the 3.0L Duramax. After reading through the forums prior to purchase, I was aware of the potential for these LM2s to consume oil. When I was checking the oil after approximately 2000 miles (no movement on the...

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