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  1. DennisT

    Will a Canadian vehicle warranty transfer to the US.

    I'm looking at a used '22 Yukon that was originally sold in Ontario but is now in the states. Will the warranty coverage transfer to the US?
  2. DennisT

    Has anyone had to flush and replace the 8 spd fluid a second time?

    My 2016 Denali 8-speed transmission is shuddering again. The TC was replaced at 30K and then the fluid flushed and replaced per the technical bulletin at 78k after it began shuddering. Now, at 112k it's started the shuddering again. Would replacing the fluid alone fix this or should I go for...
  3. DennisT

    I tried to order a 2022 Denali today.

    I went to my local dealer today to attempt to order a new Denali. I was told they get 1 allocation per week and there there 7 orders in front of me. No big deal, I can wait. I emailed my configuration to the salesman and we reviewed it. I said ok, let’s discuss money. He immediately informed me...
  4. DennisT

    Yukon momentarily turns off during hard acceleration

    While driving my 2016 6.2L Yukon Denali on the interstate yesterday I needed to accelerate quickly from about 60 to 80 mph. I mashed the throttle and the transmission kicked down and I started accelerating. About 1/2 way through move the engine, dash and all instrument lights momentarily...
  5. DennisT

    Base Denali suspension

    The 2022 Yukon ordering guide is now active on the GMC website. I just configured a unit and I have a question regarding the base Denali suspension. I would like to have the air ride suspension but it requires 22" wheels which I do not want. If I don't opt for the air ride suspension, does...
  6. DennisT

    Denali w/Duramax payload

    Could someone with a Denali with the baby Duramax post the payload from the door sticker. I’m interested in ordering one but I need to make sure it has adequate payload capacity. Thanks
  7. DennisT

    25, 50, 400 Mile MPG screen dissapeared

    Has anyone else had this problem? On my 2016 Yukon Denali, the MPG screen that displays the current and best 25, 50, and 400 miles MPG has disappeared. It still displays the trip and instantaneous mileage. When I toggle through the screens when I get to the one that should show this info all I...
  8. DennisT

    Denali and High Country Diesel Payload

    Can some of you with a diesel Denali or High Country model post your max payload from the door sticker? My current, 2016 Denali is rated at 1542 lbs and I am looking for a new diesel unit but can't find one locally to check the payload number. I need to stay in the 1500 lb range for payload...
  9. DennisT

    Beware of Luftmeister magnetic ride rear replacement shocks

    Beware of Luftmeister magnetic ride rear replacement shocks. I bought a set to replace the rears on my 2016 Denali and they did not work. The shock mounted up fine. But the air line connection would not work with the OEM airline fitting. When I pushed the connector on it the wire clip missed...
  10. DennisT

    Z95 Magnetic ride rear shock replacement

    I've just replaced my front shocks which helped the ride. One of them fell apart when it was removed. I'm now thinking I need to replace the rear (air ride) shocks. Are there any alternatives to the OEM parts available? I can really feel how the rear is harsher than the front now that the...
  11. DennisT

    Magnetic ride shock replacements

    I'm at the point of needing to replace my 2016 Denali's front shocks and I am looking at what options are available. I've never been happy with ride of the original suspension. I did a google search and found this conversion kit. Does anyone have experience with it...
  12. DennisT

    Anyone using the Unlimited Wifi through OnStar?

    A few months ago I signed up for the unlimited wifi plan at $15/month. Our cell data is not unlimited and we travel a lot in the Denali. I also used it while in campgrounds with our camper. The speed was never at full LTE speeds but was acceptable at 5 to 10 meg. Recently, we're finding it...
  13. DennisT

    What is the best 22" tire for a smooth ride

    I currently have Michelin Premier tires on my 2016 Denali with a little over 40,000 on them. They are nearly down to the wear bars. The truck came with Bridgestones which I hated and GM changed them for me. In looking around I found that the Michelins have less tread to start with than any...
  14. DennisT

    Does GM ever push a firmware update to the vehicle electronics?

    A couple of days ago the GPS and radio display and controls on my 2016 Denali would not come on when I started the truck. It was a blank screen and nothing related to it would work. A while later I started up and everything worked as usual. Then the next day I get a low tire pressure warning...
  15. DennisT

    Does moving from 22" to 20" wheels impact speedometer?

    I really don't like the ride of my Yukon Denali with 22" wheels. I am considering buying a set of 20" take-offs from eBay. If I do, will affect my speedometer significantly and would I need to have the ECM reprogrammed? thanks, Dennis
  16. DennisT

    I've got the dreaded vibration/boom

    My 2016 Denali has about 21000 miles on it and it's been great up until today. I started out like n the road today and when I got up to 60 I could feel and hear a rhythmic booming sound. Rhythmic in that it was on for a second and then off for a second. That continued for a while. At first I...
  17. DennisT

    I'm Really liking the MPG of my 2016 Denali

    I bought my Denali in July of last year and I've got a little over 16,000 miles on it now. I've made 4 round trips to FL in it at about 1,000 miles each way. It has averaged between 20.9 and 21.4 mpg on each trip and I drive around 78 to 82 mph. Around town I'm getting around 16 mpg. That...
  18. DennisT

    What's your best 25, 50 and 400 mile MPG?

    I was playing with the mileage meter in my Denali and was surprised at the best mileage numbers. They must occur when going down a mountain. My bests are: 25 mile - 25.9 mpg 50 mile - 24.5 mpg 400 mile - 20.8 mpg What are your best numbers?
  19. DennisT

    Why does the horn chirp when the door is closed upon exit?

    When I get out of my '16 Denali and leave someone inside the horn will chirp twice. It doesn't chirp if you are the last one out. Is that a feature to keep you from leaving a kid in the car? I've searched the owners manual and couldn't find mention of the feature. Just curious if others have...
  20. DennisT

    AFM Question

    I have a question regarding the Active Fuel Management on our trucks. When the system drops to 4 cylinder mode does it cut the same 4 cylinders out each time, or, does it alternate between the cylinders? Just curious. Dennis
  21. DennisT

    Is this a Range AFM device issue?

    I have one of the Range AFM units in my 2016 Yukon Denali. For a couple of weeks it has worked fine. Recently I have had this happen two times. I start the truck and take off but the transmission doesn't shift at all. It feels like it is starting off 2nd or 3rd gear and the manual shift mode...
  22. DennisT

    Are extended warranties worth buying?

    I have a new Denali. I have never bought an extended warranty on any vehicle that I have ever owned and can't think of a time when one would have been needed. However, with all of the electronics and systems on the new Denali I'm thinking about it. What's the consensus here? Are they worth...
  23. DennisT

    My new Denali is back at the dealer for vibration issues

    As I had previously posted, I have a new Denali that has vibration issues. They start at about 43 mph and continue on up to 85. I took it back to the dealer a couple of days after I picked it and they balanced the tires but said they really weren't out of balance. I took it back and left for...
  24. DennisT

    Bought a new Denali and now I'm having buyers remorse

    My wife and I picked up a new 2016 Denali on Tuesday. This is a car we plan to travel back and forth to Florida in 2 or 3 times a year. I bought it from a small town dealer and on the test drive there were no express ways around to get a real good feel for it at highway speeds. I came from...
  25. DennisT

    Picked up my new 2016 Denali yesterday

    Picked up my new Denali yesterday. I drove it 150 miles this morning on interstates and two lane roads. So far I've not experienced the dreaded buffeting. I tried at all speeds up to 85 mph. I'm not a fan of the 22 inch wheels. They feel very out of balance. I'm taking it back in tomorrow for a...

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