A black 2025 GMC Sierra 2500 HD Denali towing a large trailer.

11 Things to Look for in the 2025 GMC Sierra 2500 HD

As the cold weather comes in, there are three staples of American life: raking leaves, football, and the automotive manufacturers releasing the newest model years of their lineups. If you ask me, the best part of that trio is the last one. It’s always a thrill to see what the major auto brands do with their most popular nameplates, whether it’s an exterior change, technology update, new engine option, or taking the “if it ain’t broke, don’t fix it” route. It’s kind of like going to a high school reunion and seeing who married who, how everyone has changed, and what jobs they ended up having. Only with new model years, there are no awkward hugs or embarrassing speeches.

What models are you most interested in this automotive new year? One that I’ve got my eye on is the GMC Sierra 2500 HD. It’s a stunner of a pickup truck on the outside, and under the hood, it has the heart of a lion. If you’re looking at a GMC Sierra 2500 HD for sale in 2025, there are many good reasons to be excited. Let’s start with, let’s say, 11 of them.

#1 – Available MultiPro Tailgate

Who looks forward to driving down the open highway with something sticking out of your bed and the tailgate down? While the bungee cords might be having fun, the people in the cab generally are not. Those days are done with the Sierra 2500 HD. The MultiPro tailgate has the classic big gate that folds up and down, but it adds a small inner gate that can be fixed in a variety of positions to accommodate all types of odd-sized payloads. We’ve all seen that one horror movie; don’t be the driver who forgets to secure their load.

#2 – Transparent Trailer View

The Sierra’s 14 camera views have made trailering significantly less stressful. When I was showing horses, I would’ve given my back teeth to have trailer views other than the truck’s side and rear mirrors. Now imagine those 14 views kicked up a notch. What if, in addition to seeing all angles of your trailer, you could see through it? The transparent trailer view will make it easier to back up, see vehicles around you, and be aware of potential road hazards.

#3 – Seven Trims to Choose From

Choice is a wonderful thing to have. It’s an essential feature for a good truck. You and I have different needs, after all. The 2025 Sierra 2500 HD has seven trims to choose from: the Pro base model that is anything but basic, the hardworking SLE and SLT, the off-road-ready AT4 and AT4X, and the crown standard for luxury trims, the Denali and the Denali Ultimate. Each offers a different combination of features and options, giving you a different experience with the same guarantee of GMC quality and craftsmanship.

Leather front seats in a 2025 GMC Sierra 2500 HD Denali Ultimate.

#4 – A Pleasing Price Range

Just as you and I have different needs and preferences, we have different budgets. There are features you’re willing to pay more for in a specific trim and those you aren’t. The 2025 Sierra 2500 HD has something for every budget. The base trim, the Pro, starts at an MSRP of $46,300. At the top end of the range, the Denali Ultimate starts at $92,800. That’s a lot of variety to choose from.

#5 – A Front Seat Built for Your Seat

Let’s be honest. On a long road trip, it’s your seat that takes the biggest hit. We’ve all stumbled out of the car at a rest stop on wobbly legs, numb from navel to knees. How about we let that tradition end with the current calendar year? The 2025 model is available with 16-way, power front seats with a massage function. Now, that’s what I call self-care for the New Year!

#6 – Safety First!

The GMC Pro Safety suite has seven driver assistance features to help your trips end on a high note: getting there safely. Most of the features are aimed at preventing a collision or at least reducing the severity. It also has lane departure warnings and a following distance indicator to discourage bad driving habits like tailgating or lane drift. Now that’s smart driving!

#7 – Total Package Towing

There are many reasons to drive a Sierra 2500 HD, but its raw power is very high up on the list. The 2025 model has a towing capacity of up to 22,500 lbs, depending on the engine, configuration, and trim you choose. Unlocking that headline figure requires picking the base trim with the regular cab, long bed, diesel engine, and max tow package, but the other configurations are still impressive in their own right.

A man lowering the MultiPro tailgate on a black 2025 GMC Sierra 2500 HD for sale.

#8 – It’s All About the Payload

Towing capacity is only half of the picture. You drive a pickup so that you can use the bed to haul whatever your heart desires (and your truck’s max payload can support). With up to 3,850 lbs of capacity, that’s a lot of payload that you can haul in the 2025 Sierra 2500 HD.

#9 – Three Cabs, All Great Choices

How many people usually ride in your truck? Depending on the amount of passengers you regularly have, there are three cab choices available: regular, crew, and double. The regular cab has a 40/20/40 split-bench seat. Two passengers can ride with a console between them, or the center section can be raised to accommodate three passengers. If you need to carry some extra passengers but don’t do so regularly, the double cab gives you a back row with half-doors for easy access. If you prefer to keep your backseat passengers comfortable, the crew cab will fit the bill. The more the merrier!

#10 – Bed, Box, and Beyond

The defining feature of a truck is the bed, but that doesn’t mean one size fits all. If you’re carrying a lot of lumber or other long payloads, the 8.2-foot-long bed is the best bet for you. If you don’t need the extra space, the 6.9-foot standard bed is a better fit—particularly if you need your truck to navigate or park in smaller spaces. As a city dweller myself, I can confirm that 16 inches can be the difference between getting out of the truck with a smile or getting out to exchange insurance information.

#11 – The Complete Package

If you asked me what my best tip is for getting the truck you need (and want), I’d say it’s to pick a model that has many customization options. The Sierra 2500 HD has over two dozen great packages available for the 2025 model year. Whether you’re someone who does a lot of trailering or you spend a lot of time clearing snow away in winter, there’s a package for that.

My personal recommendation is the GMC Protection Package. It adds heavy-duty floor mats and molded splash guards to help the mud stay where the mud belongs. You want your Sierra to wear the weather as a badge of honor, but you also want to keep that cabin clean and cozy against the not-so-great outdoors.

The 2025 GMC Sierra 2500 HD: New Year, New Adventures

A new year is coming. We’ll all make resolutions to hit the gym more, eat fast food less, and start on that project we’ve been avoiding. Why not start the year with a new truck? As you can see, it’s going to be an excellent year to find yourself in the driver’s seat of a GMC Sierra 2500 HD. The 2025 upgrades and additions are exciting, and this is going to be a stand-out year for the pickup. If you’ve been on the fence about getting a Sierra, consider this your sign.