Recent content by Jayhawkeye3

  1. Jayhawkeye3

    AutoStop Eliminator

    Is this one of those installed where you fear you are going to break the parts you need to remove? I used a 5k tar tune on my previous vehicle but I don’t think there are tunes for the 3.0 diesel.
  2. Jayhawkeye3

    Fuel Economy Tanked

    I’m at 5,600 miles and 17.8 MPG. The level kit and 24” wheels with nitto terras really do put a hurt on the mileage. I do get 20-21 driving around suburbia at 45mph.
  3. Jayhawkeye3

    2025 Yukon DEF gauge pic?

    She’s actually running great! Just thirsty I guess.
  4. Jayhawkeye3

    2025 Yukon DEF gauge pic?

    Im now on my third refill of fluid and only at 5k miles. Wtf
  5. Jayhawkeye3

    2025 Yukon DEF gauge pic?

    today the DEF gauge in the car dropped to 1/3 of a tank, but the GMC app warning is gone. Ha!
  6. Jayhawkeye3

    Fuel Economy Tanked

    As mentioned above, apparently my 24 inch vossens, 35 inch nittos and level kid kill the mileage. That said, it still is random sometimes. Last week I had a 350 mile round trip the same afternoon/evening. Identical conditions. One way I got 16.5 mpg, the other way 20.1.
  7. Jayhawkeye3

    2025 Yukon DEF gauge pic?

    I’ve now added 2/3 of yet another refill and my gauge still shows 2/3 full, and my app tells me to refill soon. lol what a crappy gauge.
  8. Jayhawkeye3

    Code P06DD thrust bearing issue...

    4k miles an no issues yet on my 2025 Yukon
  9. Jayhawkeye3

    Anyone’s Lumbar Have a Mind of its Own?

    I assume if I use that key and reset the 1-2 settings, they key and the selected driver save?
  10. Jayhawkeye3

    Anyone’s Lumbar Have a Mind of its Own?

    Sorry. I’m an idot and was in a rush! 2025 Yukon Denali.
  11. Jayhawkeye3

    Anyone’s Lumbar Have a Mind of its Own?

    My lumbar support resets to full balloon bulge each time I start up nowadays. I’ve reset my memory settings, changed keys, but no bueno. Anyone else deal with lumbar - or any seat setting - reverting to some strange setting upon start each time?
  12. Jayhawkeye3

    Fuel Economy Tanked

    Thanks! I think you nailed it. The new grapplers. Terra I think? Had it leveled too. My mileage around the city suburb streets is like 20
  13. Jayhawkeye3

    Fuel Economy Tanked

    Economy still leaves a lot to be desired at 3,500 miles. Drove about 600 miles the past several days and haven’t gotten better than 17ish on the highway. Yikes. Today for example: - see picture, 100 miles at 70-80 mph - rpms around 1400-1600 - cruise control on - no wind, 55 degrees out...
  14. Jayhawkeye3

    2025 Yukon DEF gauge pic?

    I drove 2k miles before it said to refill. Refilled with 3.5 gallons and it says it’s still low 1k miles later. lol.
  15. Jayhawkeye3

    2025 Yukon DEF gauge pic?

    My app says to refill asap but my vehicle states 3/4 full.
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