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Adding a Suspension Lift on a 2023 Sierra Denali Ultimate with Super Cruise

Eric Witte
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Bjeremi Enthusiast

Bjeremi

Posted
Posted (edited)

Done multiple different levels on the front to try and get to no rubbing with the bigger tires and spacers.  1.5" 2" and now 2.5".

 

Super Cruise works fine still and commute weekly from OKC to DFW and use it the whole time.   I think my mind has tricked me into thing that it wonders a little more but I really think that just depends on lane markers and light levels.  Sometimes the sun washes out the lane markers and I feel that makes it harder for supercuirse to find them. 

 

image.thumb.png.da5a9cb74c97e836bee601615eb18719.png

Edited by Bjeremi
Evans075 New Member

Evans075

Posted
Posted
On 6/21/2023 at 1:56 PM, jdlefty3 said:

3.5" rough country lift with 285-65r20 no problem with super cruise or anything else. 

 

Hard to tell from your photo, did you do any trimming to fit those 285-65r20 tires? 

KinkyDuramax Enthusiast

KinkyDuramax

Posted
Posted

The only question I have is - If you have the pre-collison breaking but not the super-cruise stuff (Elevation trim) can you still level/lift without causing problems with the pre-collison stuff? Or are you able to get that recalibrated?

  • 1 month later...
atxracer New Member

atxracer

Posted
Posted
On 11/29/2023 at 5:48 PM, BeardedBeast15 said:

What brand lift did you go with?

Dealer had a Rough County and put 35/12.50’s on 22’s.  Definitely had to trim a lot.  
 

IMG_1318.thumb.jpeg.4ae7236be40fb5e502ba75df33b32ffd.jpeg

atxracer New Member

atxracer

Posted
Posted
On 12/12/2023 at 8:23 AM, ARedSierra said:

The only question I have is - If you have the pre-collison breaking but not the super-cruise stuff (Elevation trim) can you still level/lift without causing problems with the pre-collison stuff? Or are you able to get that recalibrated?

That annoying pre collision junk still works too.  

Mayo Woodward New Member

Mayo Woodward

Posted
Posted (edited)

just want to confirm the rough country 3.5 kit for the Denali with super cruise works  and super cruise still works when the  kit is added?

Edited by Mayo Woodward
atxracer New Member

atxracer

Posted
Posted

I think you answer is already here. But, it’s pretty safe to say that if supercruise still works on a 6” Rough Country lift, it will work on a 3.5” Rough Country lift.  

  • 2 months later...
Paul731 New Member

Paul731

Posted
Posted
On 12/6/2023 at 1:45 PM, jdlefty3 said:

No issues so far got 9000 miles on it now. I used the rough country 3.5 kit for the denali. 

I merely changed the set of tires from 275 55 R22 to 275 60 R20 (due to driving on rough roads) and the tire shop said that will be 2.something % smaller diameter (a closer one would be a 65 wall = 0.7%) anyways; the super cruise does work sometimes but not as much as it is with stock size tires 

I also asked GMC if I can lift it, I got the same answer as the GM rep answer above 

 

it comes down to this I guess; is your SC picking up on the same roads before and after the lift? Or it is picking up on some roads?

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