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  1. P

    Brake light out

    2016 with right brake light out. is it bulb or LED and if LED what issues and fixes are there? thanks
  2. P

    6.2 vs 5.3 and premium gas

    2016 XL and recently did 2 trips 1- 125 mile each way towing 6500lb boat&trailer on same road each way. Premium(93) fuel trip shows 13.9MPG and return trip with MID(89) reported 14.2mpg. NO difference noticed even on hills which peaked at 2400 elevation. 2- 500 mile round trip(not towing) going...
  3. P

    Possible mag-ride issues

    dealer missed the rear were also bad when they checked the front. So... after parts delay also got rear replaced along with air compressor for them. Tech stated compressor wasn't running. All done now and rides great. extended warranty policy more than paid for itself w/only $200 deductible
  4. P

    Yukon XL running boards don't retract most of the time

    2016, right side board has recently would start to retract then go out again. I have lubed all the pivot points as done in the past but not helping now. Begining to think I need to take motor apart and lube internal gears? Comments please and thanks
  5. P

    Possible mag-ride issues

    GMC dealer which they stated front shocks is the issue, I thought it was the rears. Ordered and wait to next visit. That said, how do I check the rears? If I depressurize the rears( with Snap-On Solus) should I see them drop without doing damage to system? Would like GM tech to chime in? thanks
  6. P

    Possible mag-ride issues

    Engine not running and hooked boat up which has at least 700lb+ tongue weight and vehicle didn't even drop a little as it should until engine started and leveling. To the dealer 4/25 chat soon with updates
  7. P

    Possible mag-ride issues

    Thanks for the replies, I'll be picking up my boat this week(7000lb) and I presume with engine off I would see some rear sag when connecting boat. I have a dealer warranty, $200 deductible so it's not painful.
  8. P

    Possible mag-ride issues

    2016 YXL with almost 70K miles.NO leaks from shocks and NO faults when scanned. When I hit a bump in road feels like one of the rear shocks isn't moving up/down because vehicle feels like it's not moving evenly. As if you would twist your hand left and right some is what vehicle feels like. Also...
  9. P

    Another tuner question

    At this time I'm interested in plug-in tuner as first choice.
  10. P

    Another tuner question

    2016 w/ 6.2L... that said looking for feedback for owners who have done tune BUT not for seeking MAX HP. Which tuner did you purchase and what changes were made along with results? thanks
  11. P

    Rear door latch not working at times

    Thanks, but too cold to do until springtime. Do you have the link to video? thanks
  12. P

    Rear door latch not working at times

    RT/rear door will not open from outside at times. My guess it needs the latch module unless there's a fix? Can anyone share link to procedure for replacing? thanks
  13. P

    Lowering rear 1 to 1.5 inches?

    2016 XL and I would like to only lower rear 1 - 1.5inches to level with stock front ride height. I worked on euro cars all my life and only had to enter ride height data in suspension computer. Also when lowered does ride quality remain the same? Open to suggestions how to do this? thanks
  14. P

    Looking for heated seat wiring diagram

    Build date 10/15 2016 Yukon Denali XL My issue: need diagram for left heated seat because I don't think it heating on remote start. I have feature turned on in menu. Seats do heat otherwise. I'm going to test with LED on cold startup. I can PM my email if need be. thanks
  15. P

    2016 Denali..Missing MPH icon on cluster

    Think I found the cause for all the issues. Lost NAV location... so I did scan and have fault for GPS antenna open circuit. Making a dealer visit soon and will report back.
  16. P

    2016 Denali..Missing MPH icon on cluster

    I don't have that option listed. I do have one listed as blank page, but no clue what it does.
  17. P

    2016 Denali..Missing MPH icon on cluster

    The only setting I found was to turn on the limit for exceeding the set I have at 62mph.
  18. P

    2016 Denali..Missing MPH icon on cluster

    Can U provide link to that thread?
  19. P

    2016 Yukon Denali..Remote start and heatd seats not warming.

    Got to stop at the dealer and they said there should be some warming, but none from mine... so will let them check it out because of GM certify.
  20. P

    2016 Denali..Missing MPH icon on cluster

    I Know how it works, mine just vanished for all roads!
  21. P

    2016 Denali..Missing MPH icon on cluster

    2016 Yukon Denali... the MPH small white icon which displays current road speed limits on cluster is now gone. I'm not a wear that I changed anything in the cluster settings. I's located along the bottom along with the other lane departure, side warning, etc thx
  22. P

    Starter Problem

    test the battery is the first step.
  23. P

    2020 6.2 AFM Delete???

    Why delete it?
  24. P

    2016 Yukon Denali..Remote start and heatd seats not warming.

    Is the heated steering wheel also to come on,, if so it's not.
  25. P

    2016 Yukon Denali..Remote start and heatd seats not warming.

    Auto HVAC is on. My next step is I'm going to check them just as the remote start shuts vehicle off at end of run cycle. Also going to check(before/after) with an IR temp tool.

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