Off-Road in HD: GMC Announces the Sierra HD AT4X and Extreme AEV Edition

by Chris Teague

Published: May 1st, 2023

off road in hd gmc announces the sierra hd at4x and extreme aev edition

People use pickup trucks as everyday vehicles, even heavy-duty models, so it’s not surprising to see automakers adding more luxury and capability to their most work-ready models. Rugged, off-road-read heavy-duty trucks are nothing new, but GMC’s taking it to the next level with the new Sierra HD AT4X and Extreme AEV Edition trucks. The pair comes with a slew of upgrades to improve their off-road capability while maintaining the workhorse attitude that people expect from heavy-duty trucks.

The 2024 GMC Sierra HD AT4X gets a 6.6-liter gas V8 as standard, but buyers can add the 6.6-liter Duramax diesel. A ten-speed automatic transmission and four-wheel drive are standard. The truck delivers 18,500 pounds of towing, a 1.5-inch lift kit, Multimatic DSSV dampers, an electronic locking rear differential, and 35-inch Goodyear tires. The HD also gets a new off-road driving mode, which recalibrates braking, steering, and other settings to improve traction and performance.

The Extreme AEV Edition brings touches from American Expedition Vehicles, including 18-inch wheels and underbody steel skid plates. It also offers steep bumpers with integrated recovery points and a winch mounting point.

Both trucks bring the luxury inside, where GMC equipped leather upholstery and massaging front seats. Ash wood trim and a Bose 12-speaker premium stereo come standard, along with a 13.4-inch touchscreen and 12.3-inch digital gauge cluster. GMC offers several driver aids, but most are withheld in added-cost options package. Available tech includes a transparent trailer-view camera system, blind spot monitoring with trailer coverage, and adaptive cruise control with trailering.

GMC hasn’t detailed pricing for the new trucks yet but said more information would become available closer to their on-sale date this fall.

[Image: GMC]

Become a TTAC insider. Get the latest news, features, TTAC takes, and everything else that gets to the truth about cars first by subscribing to our newsletter.

#GMCSierraHD #Americanexpeditionvehicles

Chris Teague

Chris grew up in, under, and around cars, but took the long way around to becoming an automotive writer. After a career in technology consulting and a trip through business school, Chris began writing about the automotive industry as a way to reconnect with his passion and get behind the wheel of a new car every week. He focuses on taking complex industry stories and making them digestible by any reader. Just don’t expect him to stay away from high-mileage Porsches.

More by Chris Teague

Comments

Join the conversation

2 of 7 comments

ToolGuy on May 01, 2023

Cool.

Like Reply
Frank on May 02, 2023

Sad fact is thats all that truck can safely tow. You need to spring for a 2500 or 3500 to actually tow a large travel trailer.

Like Reply

Recent Comments

ChristianWimmer One of my clients is a company that is actually producing eFuels in Leipzig. Yes, they require a lot of energy to produce but this would not be an issue if Germany had nuclear energy or used the excess energy from wind and solar to produce these fuels. In such a scenario the energy losses wouldn’t really matter.Also, I am told that nations like Spain or the North African nations like Morocco or Tunisia could be ideal places to produce eFuels/Hydrogen due to their abundance of solar power. Again, the energy loses here would not matter since the energy used to produce these fuels is essentially “free”. If this path were pursued, Morocco and Tunisia could become wealthy nations and exporters of eFuels and Hydrogen. Countries with an abundance of solar or wind or hydro energy could be producing eFuels for their domestic consumption and export.Another argument which to me is irrelevant these days ist the poor thermal efficiency of ICE engines (25-35% gasoline, 40-45% diesel). One long trips with cruise control set to 130 km/h and even the occasional venture into the 180-200 km/h zone, my fully loaded (with my gear) A250 (2.0 4-cylinder 224-hp Turbo) can achieve an impressive gas mileage of 6 L / 100 km. That’s phenomenal - I am looking at six 1 liter bottles of water right now and that’s all my car needs to travel 100 km… amazing.So, I am a supporter of eFuels. I love internal combustion engines and if we want to use them in a climate neural way, then eFuels are a must. Also, to me every ICE car is way more sustainable and longer-lasting an an EV. Mazda, Toyota etc. are making the right move IMO.
Blueice Once you infuse governmental unit regulation & [marketing] and taxpayerfunding, one knows quite well, dat the product or service isdestine to fail; which includes battery vehicles. Just axe yourself how revolutionary have your home batterydevices become ??? I am still waiting. after three decades, for a battery shaver whichonly requires charging two or three times per year.I am glad that I do not have a plug in Frau.
Tassos Such a heavy breadvan on stilts, with so much HP, AND with ONLY 100 KWH Battery, I doubt if you will ever see 250 miles, let alone 300, under the best of conditions. In the winter, count on 150 miles range.And NO, it looks TERRIBLE. The only SUV that looks great is the RANGE ROVER.
Tassos They sure are doing the right thing in the SHORT and MEDIUM term.As for the long term, in the long run, YOU'LL ALL BE DEAD, so WHO CARES.
Tassos I wrote recommending a 20 year old CAMRY, beat up too. So the teen will not be too upset if it gets a few more dings.Somehow I cannot find my post, though.