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2021 GMC Sierra 2500 HD review: Monster truck

Make no slip-up, this truck is enormous. Craig Cole/Roadshow Significant-duty vans are special-intent resources created...

Make no slip-up, this truck is enormous.

Craig Cole/Roadshow

Significant-duty vans are special-intent resources created to tow immense hundreds and haul mountains of stuff in all kinds of circumstances. Like other Hd pickups, the 2021 GMC Sierra 2500 AT4’s normal deficiency of refinement, small fuel performance and ponderous dynamics make residing with it day to day a problem if you will not have to have the broad ability it presents.


  • Towing and hauling ability
  • Refined powertrain
  • Ingenious tailgate

Do not Like

  • Lackluster effectiveness
  • Similar outdated interior
  • Brash styling

Supplying a bit of additional type and off-road ability, the Sierra 2500 AT4 designs element darkish chrome exterior accents, body-colour bumpers and a daring grille layout. The common shiny-pink recovery hooks seem excellent and should really be super helpful on the trail. Ensuring this truck can acquire you out into the wilderness, it will come with Rancho shocks, a locking rear differential and common 18-inch wheels with Michelin all-terrain tires, while this case in point rolls on swanky 20-inch rims.

Even bigger is not normally better

With a crew-cab body and off-road suspension, this Sierra is huge, about a trailer hitch brief of 21 feet in length, and that’s with just the eighty two-inch, common-length bed. Its elevated cab offers you skyscraper views of surrounding targeted visitors and would make climbing onboard a chore. Excluding the gargantuan telescopic towing mirrors, its body is no wider than a GMC Sierra or Chevy Silverado 1500’s, but this detail feels like it requires up a lane and a half, a feeling that’s accentuated by its almost comically raised hood that partly obscures forward visibility and frightens animals and compact youngsters.

Maneuverability is a problem with this truck. Parking can be stressful, and I instinctively swing large for every transform to keep away from clipping curbs or scraping other motor vehicles. The Sierra 2500 is not actually any even larger than rival major-duty pickups from Ford and Ram, but it guaranteed feels a measurement or two bigger.

Serving to make points a little more workable, GMC presents a assortment of helpful systems. The obtainable ProGrade Trailering process, for occasion, supplies up to 15 distinct camera views. This involves a neat clear-trailer element that employs online video to make it seem like there’s absolutely nothing driving the truck. A rear camera mirror is also available, which shows real-time online video on a screen mounted beneath the rear-perspective mirror glass, supplying a a great deal wider industry of perspective.

For folks who regularly tow, this truck presents hundreds of clever options that can make it a great deal much less stressful. A clever automated electric parking brake keeps the truck from rolling that compact volume when you shift into park, anything that can make hooking up a trailer fairly aggravating. The towing mirrors can extend or retract at the force of a button, hill-start off guide and hill-descent handle aid preserve hundreds safe and protected when traversing mountainous terrain, and tow/haul mode will even continue to be engaged at the future important cycle so you will not have to manually transform it on again. This is all excellent stuff, but most likely the Sierra’s cleverest element is really its simplest 1.

20-inch wheels seem downright little on this significant truck.

Craig Cole/Roadshow

By the numbers

So you normally know specifically what your unique truck is rated to tow or haul, GMC involves a sticker on the doorway jamb that spells almost everything out, like the gross motor vehicle excess weight rating, greatest payload, traditional trailering ability, control excess weight and more. This requires the guesswork out of how a great deal you can safely and securely tackle.

Flexing its muscles, this Sierra 2500’s greatest payload rating is three,232 pounds and it can tow up to fourteen,500 pounds with the hitch. Hook a gooseneck trailer up as an alternative, and that determine increases to an remarkable sixteen,620 pounds.

One particular more quantity of observe: 6. That is how many functions the Sierra’s obtainable MultiPro Tailgate presents. This is 1 of the most impressive pickup truck options to occur out in the last 20 yrs. This ingenious set up has what quantities to a compact gate inside the most important tailgate, which allows you haul freight more securely, conveniently access things saved in the bed and it even is effective as a stage so you can conveniently climb into the cargo box.

The MultiPro Tailgate is 1 of the Sierra’s most impressive options.

Craig Cole/Roadshow

Modest effectiveness, immodest usage

The Sierra 2500’s common six.six-liter gasoline V8 is potent sounding and sleek managing, but even with the truck bed vacant and no trailer in tow it feels overmatched. Even with having direct fuel injection and even variable valve timing, this motor just isn’t going to feel to accomplish like anything with 401 horsepower and 464 pound-feet of torque should really. It truly is not especially punchy all over town, and merging on to the highway requires lengthier than envisioned, the silky and astute 6-pace automated transmission executing its finest to aid get this rig up to pace. I blame the Sierra’s towering body, mammoth frontal space and all set-for-motion excess weight of seven,418 pounds for this pokey effectiveness. Motorists who have to have more ability and self-assurance (or just want to roll some coal) can get a six.six-liter Duramax diesel matched with a ten-pace gearbox, while you fork out by means of the nose for the privilege of burning oil. This powertrain adds about ten grand to the truck’s selling price tag.

Because the Sierra 2500’s gross motor vehicle excess weight rating is increased than 8,500 pounds, it can be exempt from fuel-overall economy tests. Nonetheless, unladen, in real-environment driving, I’ve averaged all over fourteen miles per gallon in accordance to the vacation laptop, which is not too horrible for anything of this measurement and excess weight.

The truck’s journey is unquestionably on the company side, but it can be not so starchy that it crashes in excess of bumps or shatters your spine. The journey is a touch harsher than I might like, but this stiffness is necessary so you might be not sitting down on the bump stops when the bed’s whole of cargo. Load this GMC up with bricks, gravel or a twine or two of firewood and I wager it would journey damn around like a Lexus. The Sierra’s steering is slow and imprecise, moreover it can be vulnerable to allow the truck wander a bit, but the impartial entrance suspension offers it an edge in excess of competing major-duty vans, which nevertheless occur with solid entrance axles.

This interior is uninteresting and drab.

Craig Cole/Roadshow

Huge truck, little screens

GM’s latest-era pickups are not recognised for their stellar interiors. Silverado and Sierra cabins in both gentle- and major-duty form are small-spending plan affairs created of unattractive really hard plastic. The seats are flat, and many of the secondary controls are of small high quality. Ram has a very clear advantage in this space and even Ford’s older vans are a hair nicer.

The Sierra AT4’s infotainment process with built-in navigation is quick to use and responsive, but it can be displayed on an 8-inch touchscreen that appears to be little on these types of an expansive dashboard. Even further cheapening the practical experience, this panel’s viewing angles are not excellent, with the colors conveniently washing out.

The $seven,975 AT4 Top quality Offer involves a assortment of facilities these types of as Apple CarPlay and Android Car that both join wirelessly, rear cross-targeted visitors alert, entrance and rear parking sensors and automated superior beams. It also receives you a very clear and crisp head-up exhibit and GMC’s Protection Notify Seat, which vibrates to warn the driver of hazard.

The Sierra Hd is 1 difficult truck.

Craig Cole/Roadshow

Consolation in this truck is blended. The ten-way electric power-adjustable driver’s chair is company but just about absolutely free of any bolstering. It truly is slice for someone several situations heavier than me. The backseat, even so, is fairly great, featuring heat for the outboard travellers and miles of legroom many thanks to the crew-cab body.

Pony up, cowboy

In addition to that AT4 Top quality Offer, this Sierra 2500 also options vivid Cayenne Crimson Tintcoat paint, a $645 option, moreover it can be equipped with the $545 gooseneck/fifth-wheel prep option. Which include $one,595 in vacation spot service fees, it checks out for $68,160, a steep selling price to be sure, but 1 that’s not entirely unreasonable for the ability it presents. That determine is also in line with a comparably outfitted Ram Ability Wagon or a Ford F-250 with the Tremor deal.

The 2021 GMC Sierra 2500 is able and really hard-working. It truly is a truck I can regard, even if it can be 1 I will not enjoy.