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  1. Fast_AT4

    CEL U0121

    Remote start didnt work this morning and upon getting in, noted the CEL. Chatted with OnStar and they stated I dont need to be worried about it or take action...? U0121 seems to be related to loss of communication with ABS module. Is this a "known" event and the CEL will "just go away" as...
  2. Fast_AT4

    Oil sensor variance?

    Last 2 morning while in parent drop off I get this message...but im @ 40%. Contacted OnStar (earn that monthly $$) and they state (also sending me the report) im @ 40.3%. Never mind that MPG :muhahaha: Will do an "old school" manual check and might even take it in for it if it occurs 1...
  3. Fast_AT4

    2022 Yukon AT4 wants BASS

    Looking to add 1 Sundown 15", amp, and assuming LC2? What all might be needed (maybe a second battery as well)? Would look for the future to hold replacing the front/rears as well...on an amp naturally. Much thanks.
  4. Fast_AT4

    2022 AT4 Yukon XL New Tire Suggestions *32k miles*

    These Goodyear Trailrunner at 275/60r20 that came stock only lasted 32k miles and now need to be replaced. Even though they have been rotated every oil change and/or time at the dealership. But apparently after reading many reviews, this is common (short life span) for this model. While they...
  5. Fast_AT4

    22 AT4 Idle bouncing around slightly

    Noticed the other day when sitting at a red light (engine was warm) my idle started to bound around slightly. I would guess to saw around maybe 200-300 RPM range. While it doesn't "seem" to be an issue per say, its not normal from what ive noticed...a solid stable idle. Have about 28,5xx mile...
  6. Fast_AT4

    Yukon AT4 Storage Lid

    Matchy Matchy.
  7. Fast_AT4

    Something for them DirtyMax owners

    16" X 10 1/2" x 1/2" Birch w/wall mounting/standoffs on the back (will be added to our Etsy soon)
  8. Fast_AT4

    This or That *Picture Thread* OEM -vs- Current

    Lets see them changes! :pepper: :party36: :pepper: This Or That
  9. Fast_AT4

    No squirt squirt

    Ran out of windshield solvent the other day, topped it off today, and notta....guess I'll have GMC have a look at it when I get my oil changed this weekend.
  10. Fast_AT4

    1Yr in owning my Redwood AT4

    Just realized that I past the 1yr mark with a delivery date of 4.11.2022 so I figured I'd share a bit of my experience(s) thus far (in no particular order): 2022 Redwood Metallic Yukon XL AT4 6.2 STILL love the Redwood Metallic color. Bought it sight unseen was was not disappointed. Love the...
  11. Fast_AT4

    Was jelly about Sierra front grill AT4 logo...so I made one

    Snug press fit to perfectly go into the slot and then also attached via 3M VHB double sided tape. Dont thing that the tape is needed due to it locking into the slot...but why not. Came put real nice imo and doesnt block much air travel. 3 layers; back layer snaps into place and other 2 layers...
  12. Fast_AT4

    Felt like making something for ME

    Nice and clean 11" AT4 clock. Had to design and 3d print a few parts due to poor QC on the bracket they sent to mount to the wall and a stand off to lock it into position...no biggie.
  13. Fast_AT4

    Smoked out Reverse / Rear Reflector / Fog Lights

    Added these to our Etsy lineup..so I figured i'd share :head3:. Going to be ordering some yellow as well for the fog lights.
  14. Fast_AT4

    Custom Door Sills for the Yukon

    Made my own door sills and added to Etsy Shop. Custom requests welcome :grd:
  15. Fast_AT4

    Volt / Lighting question

    Say one was to want to tap into the DRL...what voltage lighting solution would be needed? Found an interesting 3V product that might meet my needs; just not sure on the voltage aspect...not my forte. Any comments would be grand!
  16. Fast_AT4

    Window Deflectors

    Have always had some form of window deflector. Either from when I used to smoke (10+ yrs ago) or if I just want some fresh air...which I default to all windows down here in sunny Florida. Has anyone ran WeatherTech? I've used there products in the past and no issues. Like $135 to my door...
  17. Fast_AT4

    Corsa catback 6.2 Yukon XL AT4

    Quick little video...with cold start :evillol: YouTube
  18. Fast_AT4

    Lightbar suggestions

    Wanting to add a similar to what I had on my F250 on the AT4...anyone done a lightbar yet? PFA
  19. Fast_AT4

    Whipple for AT4...?

    https://www.ebay.com/itm/325417712890?fits=Submodel%3AAT4%7CYear%3A2022%7CModel%3AYukon&hash=item4bc4683cfa:g:VwAAAOSwVVtja9tq&amdata=enc%3AAQAHAAAA8LP8Dvfb3MfiRX7%2FtFWMh%2B7SOkKDIIxT1rbU2H%2FsxSjGdDsHPaJwXo5HiTTHtdKSRr%2FSZ6YUTzzYQ6wjoJinrdxYSnLrnBWupofreroogqmGp7Yz3lmYLevMAfhtnwnS9KLv%2BwS2lvt...
  20. Fast_AT4

    AT4 6.2 Corsa Exhaust Order

    $150 off until the 15th and used the 3 month payment method with 0% interest..just seems the logical route. Will be self installing; pics/videos to follow. Guessing about a 3-4 weeks ETA based on email from Corsa. #damn
  21. Fast_AT4

    Why PPV / SSV vs civilian released models

    If you are not purchasing for law enforcement purposes...why would you want one of these models vs a civilian model? What am I missing here?
  22. Fast_AT4

    Removal of front emblem

    Anyone have a guide/video reference to removed the front emblems and/or grill/bumper (if needed) on the 2022 Yukon AT4? Have a project in mind but this is my hindering factor. Dont want to destroy the emblems if not needed also. Much thanks
  23. Fast_AT4

    Yukon / Suburban 3rd Brake Light Vinyl

    Made an AT4 3rd brake light overlay for myself and now offered; custom welcome :)
  24. Fast_AT4

    Front and Rear GMC Emblem Vinyl

    Now both offered; got lazy and didnt design the rear...now done/ready for orders. Need a different color...let me know :) Here
  25. Fast_AT4

    Custom AT4 / AT4X Tow Hitch Covers and Channel

    For the AT4 and ATX4 <Sierra> owners: HERE

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