2019 GMC Sierra AT4 Brings Off-Road Chops To The Big Apple

GMC has introduced the all-new Sierra AT4, ahead of its debut at the New York Auto Show.

Based on the 2019 Sierra, the AT4 is an off-road focused model which comes equipped with a 2-inch suspension lift, Rancho monotube shock absorbers and exclusive 18-inch alloy wheels with all-terrain tires. The truck has also comes standard with four-wheel drive, a locking rear differential and skid plates. Other off-road features include red recovery hooks, hill descent control and a traction select system which has preset drive modes that adjust the “transmission shift points, throttle mapping and StabiliTrak to optimize performance for the situation at hand.”

The unique features don’t stop there as designers installed body-color accents on the grille surround, door handles and bumpers. The truck has also black chrome accents and a MultiPro Tailgate which has six unique functions including a standing workstation mode and an egress mode which acts as a step and a seating position.

Interior changes are limited but the truck has two-tone leather seats with embroidered AT4 badging on the headrests. Drivers will also find contrast stitching, all-weather floor mats and “dark-tinted and textured aluminum finishes.”

An assortment of different options will be available including a color head-up display, a rear camera mirror and the GMC-exclusive CarbonPro bed. It is constructed out of a purpose-built carbon composite material which enables the bed to be 62 pounds (28 kg) lighter than its steel counterpart while also providing “best-in-class dent, scratch and corrosion resistance.” Buyers should also opt for the 20-inch wheels as the standard 18-inchers look positively tiny.

Power comes from a 5.3-liter V8 engine which has a Dynamic Fuel Management system that enables it to operate on one to eight cylinders. Customers will also be able to order an optional 6.2-liter V8 engine or a 3.0-liter Duramax turbodiesel inline-six.

The 2019 GMC Sierra AT4 will go on sale this fall and pricing will be announced closer to launch.

VIDEO

more photos...
  • Soob

    The wheels are WAY too small.

  • Paul

    It needs bigger wheels and tires because that looks goofy like it is in these pictures.

  • matrem

    Is this car 12 feet tall?

  • LWOAP

    As two others have already said, this thing needs bigger tires. I’m expecting anything massive but these are on the small size.

    • Jay

      The rims are 18 inches, The truck is huge, but yeah bigger tires would definitely help out.

      • LWOAP

        Ok, fair enough. But I still think they should add slightly bigger tires and wheels.

      • Auf Wiedersehen

        The wheels are 18″ too…

  • Karl

    Very good looking truck but the interior is a total letdown..

  • David De Fortier

    Wheels are out of proportion and i dont know about visibilty over that massive hood. You could run over a person and not even know it.

  • masnawi

    4WD with high heels

  • U8INIT

    How women look when they wear a kitten heel😅

  • Hot Twink

    It still uses that old, archaic Eaton automatic mechanical locking rear differential. You can’t control when it locks (or unlocks) and when it does engage, it will only stay locked up to 25 mph. Above 25 mph it unlocks and returns to behaving like an open differential.

    I doubt GM’s new terrain select system recalibrates the traction control system (wheel braking via ABS) to be more aggressive. If the TCS stepped in too early at the slightest detection of wheelslip, the Eaton auto-locker would not have a chance to lock. It requires a wheel speed difference of 100 rpm (or more) before it locks.

    GM really needs to update its trucks with a electronic locking differential that allows the driver to lock or unlock it, and for better integration with the traction control system.

    • Bash

      Thats good addition to the context, but you forgot to mentioned the small wheels, lol

      • Hot Twink

        I figured that had been mentioned enough already.

        • Bash

          LOL clearly.

        • Auf Wiedersehen

          Yeah, but those wheels! Too small or what?

  • Matt

    Those wheels! Hilarious.

    It’s like a silly photoshop article titled ‘what would pick-ups look like with wheels from a compact?’

  • SteersUright

    Once again, GM misunderstands how to thoroughly FINISH a product. Interior looks cheap and about a decade old with an aftermarket modern touchscreen forced to fit. Wheels are laughably small and out of proportion with the massive truck. An almost good looking, almost desirable, almost gonna succeed new product as has become expected from GM, an almost decent automaker.

  • TheHake

    Seriously underwheeled!

  • eb110americana

    GM still playing close to the chest with the output numbers for the revised Dynamic Fuel Management 5.3L and 6.2L V8s.

  • LWOAP

    Ok, something else I thought I should have mentioned earlier. It looks better in the video and on top of that the truck’s wheel arches (especially the rear) are making the tires look smaller than they actually are. And that thing is actually quite tall when you have a person next to it for comparison.

  • Auf Wiedersehen

    A 2″ lift and 32″ tires does not an off-roader make. This looks downright silly. But hey, whatever GM. And lets see the concrete block drop all these truck companies think people do with their trucks, with that carbon fiber bed.