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  1. Aggie76

    2025 Yukon refresh

    Been waiting for specifics on the '25 before deciding what to replace our '15 Denali with. It's my wife's daily vehicle and our preferred long-trip ride if taking family and luggage so she get's a strong vote and isn't keen on what we are seeing. Been hoping for a dash design similar to what's...
  2. Aggie76

    "Service 4WD" - Master Thread

    Wife had the "service 4WD" show up this evening as she started up and backed out of garage. She pushed the "reset" check mark and said it went away but didn't tell me about till after we left it at tire dealer to switch from winter to summer tires first thing tomorrow. We've got about 128k...
  3. Aggie76

    2015 Yukon xl electrical issue

    Well, picked up a new Interstate battery and installed it this morning. That was the solution, cranked up immediately. Garage was surprised we had no warning with slow starting, clicking, etc. Oh well, wife is happy and that's what matters.
  4. Aggie76

    2015 Yukon xl electrical issue

    Did you find a solution? We may have a similar issue. Went out to start ours in the garage and the running boards didn't open, no interior lights, no dash, etc. No clicking, no cranking... absolutely no electrical power. Tried both my jump starters that were fully charged with no impact...
  5. Aggie76

    Delivered to dealer - and missing?

    I was a young Army 2LT and ordered a '78 Pontiac base Grand Prix while stationed at Ft Hood, TX. As typical for an Armor officer we spent a great deal of time in the field and I wasn't able to get to the dealer for a couple of weeks after the car was due in. Stopped by several times over the...
  6. Aggie76

    2018 Yukon XL 4x4 38k miles leaking coolant

    2015 Yukon XL Denali - SUV
  7. Aggie76

    2018 Yukon XL 4x4 38k miles leaking coolant

    Just had my 2015 in for another issue and they noticed the low reservoir and then found a tiny bit of fluid under drivers side top of radiator that they said would leak when under pressure and warm. They replaced the radiator and thermostat under warranty under PI1513F per the service invoice I...
  8. Aggie76

    I've got the dreaded vibration/boom

    So I visited the dealer yesterday to address the concern as it would not change and I was concerned about my wife being stranded in our remote area if it seized. The dealer diagnosed it as a program event under the powertrain warranty that they were aware of with the transmission fluid breaking...
  9. Aggie76

    I've got the dreaded vibration/boom

    So I know this is a year old thread but after searching the forum it seems this might be what I've got going with my wife's 2015 Yukon XL Denali at 75,500 miles. She complained last week during a 140 mile trip that there was noise so loud that she couldn't even concentrate or hear radio. I...
  10. Aggie76

    OEM Power Running Boards working intermittently

    So I had the module replaced under warranty a couple years ago when mine were acting weird like yours. It’s been fine until this past week and it’s started again. We stress them with our severe winters with the snow and ice but they handle it. Guess I need to do some experimenting again.
  11. Aggie76

    2015 TAHOE LTZ RIDES TERRIBLE

    I just replaced both front shocks on my 2015 Yukon XL Denali. Spouse's daily driver and she heard noise with any pavement bumps. I took a look and noticed some fluid on sides on both. Dealer checked and replaced both, outside of warranty, along with right ball joint. Very expensive repairs...
  12. Aggie76

    Exterior Front Door Upper Trim falling off...

    Visited dealer today. There were two other pieces loose as well it turns out. Dealer replaced all six trim pieces under warranty, took nearly four hours to get all complete.
  13. Aggie76

    Exterior Front Door Upper Trim falling off...

    Had it happen to our 2015 Denali XL drivers door last fall and repaired under warranty. Now the passenger side is doing it so will have to call dealer on Monday to get it in. Very disappointed as we've had several other issues with trim, bad paint, plugged drain and then loose hose from...

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