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

MRF 95 T-Bird Whenever I travel and I’m in my rental car I first peruse the FM radio to look for interesting programming. It used to be before the past few decades of media consolidation that if you traveled to an area the local radio stations had a distinct sound and flavor. Now it’s the homogenized stuff from the corporate behemoths. Classic rock, modern “bro dude” country, pop hits of today, oldies etc. Much of it tolerable but pedestrian. The college radio stations and NPR affiliates are comfortable standbys. But what struck me recently is how much more religious programming there was on the FM stations, stuff that used to be relegated to the AM band. You have the fire and brimstone preachers, obviously with a far right political bend. Others geared towards the Latin community. Then there is the happy talk “family radio” “Jesus loves you” as well as the ones featuring the insipid contemporary Christian music. Artists such as Michael W. Smith who is one of the most influential artists in the genre. I find myself yelling at the dashboard “Where’s the freakin Staple singers? The Edwin Hawkins singers? Gospel Aretha? Gospel Elvis? Early Sam Cooke? Jesus era Dylan?” When I’m in my own vehicle I stick with the local college radio station that plays a diverse mix of music from Americana to rock and folk. I’ll also listen to Sirius/XM: Deep tracks, Little Steven’s underground as well as Willie’s Roadhouse and Outlaw country.
The Comedian I owned an assembled-in-Brazil ‘03 Golf GTI from new until ‘09 (traded in on a C30 R-Design).First few years were relatively trouble free, but the last few years are what drove me to buy a scan tool (back when they were expensive) and carry tools and spare parts at all times.Constant electrical problems (sensors & coil packs), ugly shedding “soft” plastic trim, glovebox door fell off, fuel filters oddly lasted only about a year at a time, one-then-the-other window detached from the lift mechanism and crashed inside the door, and the final reason I traded it was the transmission went south.20 years on? This thing should only be owned by someone with good shoes, lots of tools, a lift and a masochistic streak.
Terry I like the bigger size and hefty weight of the CX90 and I almost never use even the backseat. The average family is less than 4 people.The vehicle crash safety couldn't be better. The only complaints are the clumsy clutch transmission and the turbocharger.
MaintenanceCosts Plug in iPhone with 200 GB of music, choose the desired genre playlist, and hit shuffle.
MaintenanceCosts Golf with a good body and a dying engine. Somewhere out there there is a dubber who desperately wants to swap a junkyard VR6 into this and STANCE BRO it.