AT4 Lift Question

I was under the impression a Denali had quite a few more "Luxury " bells/whistles, than a standard AT4. For example I have a rear view camera mirror. I was told that is extra and I got lucky as it is not standard AT4, but does come standard with Denali???
Nope. At4/Denali are the same, sans exterior chrome/painted and interior trim wood/carbon look and colors. My at4 has camera rear view and every other Denali option.
 

I shopped for an AT4 for several months and found that there were several different option configurations. I finally chose one that had all the options that I could find available, to include the carbon pro. I think one of the options not available on the AT4 are retractable side boards, which makes sense because it is primarily an off road truck. Here are some general differences:

Quick Comparison Table​

Feature CategoryDenaliAT4
Luxury interior materials✔️ Premium leather, wood trim❌ Rugged-themed interior
Chrome exterior✔️ Signature chrome grille & accents❌ Dark/off‑road styling
Adaptive Ride Control✔️ Available❌ Not offered
Massaging seats✔️ Available (Denali Ultimate)❌ Not offered
Advanced tech bundles✔️ Highest‑level packages⚠️ Mid‑level tech
Off‑road hardware⚠️ Light capability✔️ Skid plates, AT tires, off‑road suspension
 

Nope. At4/Denali are the same, sans exterior chrome/painted and interior trim wood/carbon look and colors. My at4 has camera rear view and every other Denali option.
Interesting. I guess it is definitely an options package for "Everything". I test drove one that dd not have the Heads-Up display (Speed on windshield), nor did it have rear view camera.
On the regular Denali, not Ultimate, does it have a lumbar that will go up and down, not just forward/backward? I really need a lumbar that goes up and down to adjust for my curved spine.
 

From Microsoft Copilot. It isn't always correct as it misread my VIN for options but usually correct. Says the VIN will confirm the lumbard module that the vehicle has:
Yes — on most modern GMC Sierra Denali models, the power lumbar support does move up and down as part of a 4‑way lumbar system. This means you can adjust in/out (firmness) and up/down (height) independently for better lower‑back positioning.

🪑 How Denali Lumbar Support Works​

  • 4‑way power lumbar is standard on Denali and Denali Ultimate trims.
  • Adjustments include:
    • Lumbar height (up/down)
    • Lumbar depth (in/out)
  • This is confirmed by GM parts listings describing the Denali lumbar module as a “4‑way position” unit.
 

From Microsoft Copilot. It isn't always correct as it misread my VIN for options but usually correct. Says the VIN will confirm the lumbard module that the vehicle has:
Yes — on most modern GMC Sierra Denali models, the power lumbar support does move up and down as part of a 4‑way lumbar system. This means you can adjust in/out (firmness) and up/down (height) independently for better lower‑back positioning.

🪑 How Denali Lumbar Support Works​

  • 4‑way power lumbar is standard on Denali and Denali Ultimate trims.
  • Adjustments include:
    • Lumbar height (up/down)
    • Lumbar depth (in/out)
  • This is confirmed by GM parts listings describing the Denali lumbar module as a “4‑way position” unit.
Dang my AT4 does not have up/down. Still love the truck. It's not a deal breaker, as I own the truck, but wish it had it. Game changer on hours long journeys.
 

I was speaking on the Denali vs AT4 package in the 2500. Not the Denali Ultimate. My AT4 has the AT4 Premium Plus pkg-- heads up display, camera in rear view mirror, power sunroof,technology pkg and power running boards. Other than the up and down lumber, pretty much the same truck just with different lipstick on it.
 

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