2018 GMC Sierra 2500HD

2018 GMC Sierra 2500HD
2018 GMC Sierra 2500HD


  • Impressive hauling and towing capabilities
  • Refined and quiet ride on the highway
  • Massive power from optional diesel engine
  • Solid build quality gives a high-end feel


  • Limited availability of telescoping steering wheel
  • Rear visibility isn't all that great
GMC Sierra 2500HD years

Which Sierra 2500HD does Edmunds recommend?

Yes, the maxed-out Denali trim level of GMC Sierra 2500 is appealing, but not everyone buying a truck needs all that luxury equipment. A sensible compromise is the SLT trim level with the optional 6.6-liter turbodiesel engine. The SLT is still plenty upscale with features such as power-adjustable pedals, an 8-inch center touchscreen and leather upholstery, but it's a bit less ostentatious. And, for the most part, you can equip the SLT with any individual options you want, including towing packages, off-road suspension or high-tech driver-assistance features.

Edmunds' Expert Review

Overall rating

The 2018 GMC Sierra 2500HD is a highly capable heavy-duty truck with lots of extras. It can tow over 14,000 pounds, seat six and it's wrapped up in an attractive package. If you need more capability than the Sierra 1500 but don't want the added expense or size of the 3500, the 2500 is the obvious choice.

For 2018, the Sierra 2500HD doesn't change much, and that's not necessarily a negative. A previously optional 7-inch touchscreen (with Apple CarPlay and Android Auto) is now standard but there are no updates to powertrains, suspension or features availability. That means that the 2500HD is still well-built and high-class and as utilitarian as it needs to be. It also means you can still get tech items such as the user-friendly Intellilink infotainment interface or the optional Driver Alert package, which adds parking sensors, lane departure warning and forward collision warning.

Of course, you'll also want to check out its corporate sibling, the Chevrolet Silverado 2500. It's mechanically the same, but it's priced lower and with less luxury equipment. For buyers who can do without the luxury gear, the Silverado is certainly worth a closer look. On its own merits, though, the 2018 GMC Sierra 2500HD is certainly a desirable truck with a lot to offer, even to the most demanding of truck owners.

2018 GMC Sierra 2500HD configurations

The 2018 GMC Sierra 2500HD is a heavy-duty pickup truck available in four trim levels. The base (Sierra) version comes with basic equipment such as vinyl flooring and steel wheels, but you'll get a lot more if you pick the SLE, SLT or the range-topping Denali. On upper trim levels, items such as a remote-locking tailgate, leather upholstery and navigation become available. There are three cab configurations: regular cab, double cab and crew cab. All are available with two- or four-wheel drive.

The regular cab is available only with a long bed (8.2 feet), while the extended- and crew-cab models can have a standard bed (6.5 feet) or a long bed. Unlike its 3500HD big brother, the Sierra 2500HD is not available with a dual rear-wheel (DRW, or dually) axle. The SLT trim is available only on the double and crew cabs, and the Denali is available only as a crew cab.

The base Sierra comes standard with a 6.0-liter V8 engine (360 hp and 380 lb-ft), a six-speed automatic transmission, 17-inch steel wheels, an automatic locking rear differential, xenon headlights, LED daytime running lights, air conditioning, a choice of cloth or vinyl upholstery, a 40/20/40-split front bench with a fold-down center armrest, a 60/40-split folding rear seat, rubber floor covering, a rearview camera, power door locks, cruise control, a tilt-only steering wheel, a 7-inch IntelliLink touchscreen infotainment system and a six-speaker sound system with two USB ports, an auxiliary audio input jack, Apple CarPlay/Android Auto compatibility, Bluetooth phone and audio, Pandora radio, and voice controls. Optional tech equipment on the base Sierra 2500HD includes OnStar, 4G LTE Wi-Fi and satellite radio.

From the base Sierra on up, you have your choice of engine, too. A turbocharged 6.6-liter diesel V8 (445 hp and 910 lb-ft) is also available, and it is paired to a different six-speed automatic. Buyers can also add a bi-fuel option to the 6.0-liter engine, allowing it to run on gasoline or compressed natural gas.

If the base truck isn't your flavor, then step up to the SLE. It gets most of the base trim's optional tech features plus an upgraded 8-inch central touchscreen, 17-inch alloy wheels, tinted rear windows, a remote locking EZ Lift & Lower tailgate, LED cargo box illumination, remote keyless entry, carpeting, a leather-wrapped steering wheel, HD radio and a CD player.

With a few more luxury items, the SLT trim level feels a bit better equipped than our standard work truck. It adds 18-inch chrome alloy wheels, additional chrome trim, foglights, power-folding mirrors, dual-zone automatic climate control, leather upholstery, eight-way power-adjustable and heated front seats (with power lumbar adjustment), driver-seat memory settings, power-adjustable pedals, a tilt-and-telescoping steering wheel, an auto-dimming rearview mirror, remote ignition and a 110-volt household-style power outlet.

For a plush and upscale vibe, choose the Denali trim. It will get you even more chrome on the outside, 20-inch wheels, chrome side steps, a spray-in bedliner, a power-sliding rear window with defogger, front and rear parking sensors, a navigation system, wireless phone charging, a Bose audio system, a configurable 8-inch driver information display, upgraded interior trim, ventilated front seats and a heated steering wheel.

Most of the upper trims' extra standard features can be added to the lower trim levels as options. Other option highlights, depending on trim level, include different axle ratios, a bed storage box, various tonneau covers, trailering mirrors, a sunroof, a gooseneck/fifth-wheel trailering prep package, and a rear-seat entertainment system. There's also a Driver Alert package, which includes front and rear parking sensors, lane departure warning, forward collision warning and a safety-alert driver seat. The Z71 suspension package adds hill descent control, skid plates, specially tuned shock absorbers and unique styling tweaks. Also available (on SLT crew-cab models only) is the All Terrain HD package, which includes off-road tires, the spray-in bedliner, a skid plate, the Z71 suspension and a heated steering wheel.

Trim tested

Each vehicle typically comes in multiple versions that are fundamentally similar. The ratings in this review are based on our full test of the 2017 Chevrolet Silverado 2500HD LTZ Crew Cab Long Bed (turbo 6.6L V8 diesel | 6-speed automatic | 4WD | 8-foot-2-inch bed). The Silverado is essentially the GMC Sierra's twin, so many of our observations will apply.


The 6.6-liter diesel V8 gives the Sierra 2500HD big towing numbers and impressive acceleration. Steering and braking are less awe-inspiring, but objectively this truck performs well by most standards that matter to truck buyers.


The 6.6-liter diesel makes massive torque and more than sufficient power, giving it a surge of acceleration off the line. In our testing, it covered 0-60 mph in just 7.7 seconds. In-town acceleration is more reserved, but there's still plenty of power to get the Sierra 2500HD up to freeway speed.


These brakes don't offer much confidence. Under hard braking, the pedal can go all the way to the floor. Braking distances are long, but in traffic they seem to work well enough if you leave some distance. You just don't feel very connected to the action.


The steering is well-weighted and provides stability when cruising straight, but it's hard to judge what the tires are doing around turns. The low steering ratio adds stability when towing, but it results in busy hands when parking or making U-turns.


The big surprise is how well this gargantuan vehicle takes turns. There's minimal body roll around corners unless you're going way too fast. In parking lots and tight spaces, it maneuvers well enough considering its size.


If you live in a city, drivability will be low with any 2500 series pickup truck. Otherwise, the diesel's low-end torque and abundant features make for a pretty approachable truck.


Our test vehicle had plenty of ground clearance and the Off-Road Z71 package, which is a great deal for the price. You won't be taking this truck on any tight trails, but it will conquer your average dirt road.


It has a harsh ride from the stiff and bouncy suspension, but as heavy-duty trucks go, the Sierra HD is relatively comfortable. Put a big load back there and you'll have a road-trip-ready vehicle. But day-to-day comfort suffers, so you might want a 1500 if you don't need the 2500's extra towing capacity.

Seat comfort

You'll find big, well-bolstered and comfortable seats no matter which seating position you're in. The seats are wide with sufficient contours to hold you in place, and they provide great road-trip comfort.

Ride comfort

This truck bounces, shimmies, shakes and jumps over the slightest road imperfections. That's forgivable in the 3500 class, but this 2500 should be a bit better. Load it up with a heavy payload or a big trailer, though, and the ride quality significantly improves.

Noise & vibration

While road noise is subdued, quite a bit of wind noise comes from the truck's square front end and big mirrors. The diesel engine rumbles a bit, but it isn't particularly grating or abrasive while cruising on the highway.

Climate control

The big knobs and easy-to-read layouts are a plus. The air conditioning blows cold. The split-operation for the heated seats is a neat feature — you can heat your sore back without cooking your behind as well. The vents are vertically mounted, which isn't ideal, but they're easy to direct.


While it might not be the most luxurious vehicle in the class, this 2500HD has a totally livable interior. The overall design is dated, but the materials quality is sufficient.

Ease of use

The 2500HD's controls are easy to use with large, readable buttons and quick response times from the touchscreen.

Getting in/getting out

A grab handle and side steps make it easier to get in and out of the Sierra 2500HD, but some climbing is still involved. Still, getting in or out isn't any harder than usual for the HD truck class.

Driving position

Adjustable pedals, a tilt-and-telescoping steering wheel, and a generally good view over the hood combine for an excellent driving position. You've got a commanding view of the road however you position the seat.


Call all your NBA player friends and have them stretch out. You can be tall, wide — or both — and fit with no problem in this truck. It's big on the outside; so, there's lots of space for five people on the inside.


All of the Sierra's roof pillars are wide and thick and obstruct your view. The big towing mirrors and the rearview camera help the situation, but knowing where the corners of the truck are is tough.


Body panels and interior pieces are well put-together. We didn't notice any rattling, shaking or malfunctioning during our test. The interior materials aren't the nicest in the class, but they certainly suffice for such a utility-focused vehicle.


The 2500HD can tow and haul massive loads, and it has abundant interior storage. But offerings from Ford and Ram outclass it in a couple key categories.

Small-item storage

Massive pockets are everywhere. A giant center console, a split-open glovebox, multiple cupholders in each door, both front and back. If you're looking for more small-item storage, the only place you'll find it is in the Ram equivalent, which has small, in-floor cooler boxes in the rear seat.

Cargo space

Mirroring its rivals, the Sierra 2500HD is available with a standard bed (6 feet 6 inches) and a long bed (8 feet 1 inch). Our test truck had the long bed, which allows for a massive amount of cargo space. The rear seats fold up for big interior storage as well.

Child safety seat accommodation

The 2500 can fit three car seats in the back without much fuss. There are two sets of easily accessible lower latch anchors and three shelf anchors that are a bit harder to reach. But this truck's sheer altitude makes it less than desirable unless lifting kids is your workout program.


The 6.6-liter turbodiesel has massive torque and power, but the Sierra's towing capacities are a bit lower than key rivals. The max trailer weight behind the 2500HD is 14,500 pounds; it can tow 18,100 pounds with a fifth-wheel trailer.


All full-size truck beds are a similar size. This one can be accessed by corner bed steps built into the rear bumper corners. Payload maxes out at 3,204 pounds — lower than the class leaders, but only by a few hundred pounds.


Using GMC's IntelliLink interface is pretty simple upfront for the most part, but we had several usability issues with our test vehicle. Finicky voice controls and subpar device integration made for a frustrating user experience.

Audio & navigation

Menu logic on the GMC system is easy to understand, but not the most elegant in the class. Touchscreen responses are slower than class leaders. We like the look of the optional 8-inch touchscreen, but it doesn't stand out much from rival systems.

Smartphone integration

Our experience with smartphone devices was poor, with many dropped connections over the course of the test. When it worked, we generally like the interface, but even then it takes quite a bit of time to load music. Best to use Apple CarPlay and Android Auto.

Voice control

Several attempts to use the built-in voice controls fell short, with a success rate of about 50 percent. It was easier to use the physical knobs and touchscreen controls. That said, Siri and Google Voice can be accessed if you've paired your smartphone by holding the talk button longer.

Consumer reviews

Read what other owners think about the 2018 GMC Sierra 2500HD.

Overall Consumer Rating

Most helpful consumer reviews

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Features & Specs

N/A city / N/A hwy
Seats 3
6-speed automatic
Flex-fuel (ffv)
360 hp @ 5400 rpm
N/A city / N/A hwy
Seats 3
6-speed automatic
Flex-fuel (ffv)
360 hp @ 5400 rpm
N/A city / N/A hwy
Seats 3
6-speed automatic
Flex-fuel (ffv)
360 hp @ 5400 rpm
N/A city / N/A hwy
Seats 3
6-speed automatic
Flex-fuel (ffv)
360 hp @ 5400 rpm
See all 2018 GMC Sierra 2500HD features & specs


Our experts’ favorite Sierra 2500HD safety features:

OnStar Telematics
This optional system adds items such as roadside assistance, remote door unlocking, stolen vehicle assistance and turn-by-turn navigation.
Lane Departure Warning
Alerts the driver when he or she is leaving the lane, which can be especially helpful on such a big truck.
Teen Driver Mode
Uses custom vehicle settings associated with a specific key fob to limit certain driving features such as vehicle speed and radio volume.

NHTSA Overall Rating

The National Highway Transportation Safety Administration offers independent analysis.
  • Frontal Barrier Crash Rating
    Overall4 / 5
    Driver4 / 5
    Passenger4 / 5
  • Side Crash Rating
    Overall5 / 5
  • Side Barrier Rating
    Overall5 / 5
    Driver5 / 5
    PassengerNot Rated
  • Combined Side Barrier & Pole Ratings
    Front Seat5 / 5
    Back SeatNot Rated
  • Rollover
    Rollover3 / 5
    Dynamic Test ResultNo Tip
    Risk Of Rollover20.4%

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Contact King today for information on dozens of vehicles like this 2018 GMC Sierra 2500HD SLE. You deserve a vehicle designed for higher expectations. This GMC Sierra 2500HD delivers with a luxurious, well-appointed interior and world-class engineering. This 4WD-equipped vehicle handles any condition on- or off-road with the sure footedness of a mountain goat. With unequaled traction and stability, you'll drive with confidence in any weather with this White 2018 4WD GMC Sierra 2500HD SLE. Beautiful color combination with White exterior over JET BLACK interior making this the one to own! Look no further, you have found exactly what you've been looking for.
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2018 GMC Sierra 2500HD 4WD Denali Duramax 6.6L V8 Turbodiesel Sierra 2500HD Denali, Duramax 6.6L V8 Turbodiesel, Allison 1000 6-Speed Automatic, 4WD, Onyx Black, Jet Black Leather, 8' Multi-Color Driver Instrument Info Display, Bluetooth For Phone, Chrome Power-Adjustable Heated Outside Mirrors, Chrome Recovery Hooks, Duramax Plus Package, Exterior Parking Camera Rear, Garage door transmitter, GMC 4G LTE, Heated Leather Wrapped Steering Wheel, Navigation System, Power Sunroof, Premium audio system: GMC Infotainment System, Radio: AM/FM/SiriusXM/HD w/Navigation, Remote Vehicle Starter System, Theft Deterrent System (Unauthorized Entry), Universal Home Remote. Please contact the dealer for additional manufacturer rebates that may be available and could further reduce your Lindsay Love It price! Additional discounts such as recent College Graduates, Educators, Military, owners of competitive makes, loyalty rebates etc, may be available. We make every effort to provide accurate information, but please verify options and price before purchasing. All vehicles are subject to prior sale. All prices are special internet prices only. All financing is subject to approved credit. To review freight fees go to (http://www.lindsaybuickgmc.com/Freight-Charges). Tax, tags, and processing fee of $679 additional. $2,250 - National Buick and GMC Bonus Cash. Exp. 01/02/2019, $1,000 - General Motors Consumer Cash Program. Exp. 01/02/2019, $1,000 - GM Down Payment Assistance Program. Exp. 01/02/2019

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More about the 2018 GMC Sierra 2500HD

The 2018 GMC Sierra HD is a strong contender among full-size heavy-duty pickup trucks, boasting capability and refinement in equal measure. Three cab and two bed configurations are available, plus a dual rear-wheel variant and a wide variety of trim levels. Several option packages, stand-alone options and drivetrain choices are on offer. Then there is the lengthy accessories list, which includes many useful items that are available à la carte. As such, pricing spans a vast range. Deciding which GMC Sierra is right for you can be an intimidating task.

The 2018 GMC Sierra HD is available in Sierra, SLE, SLT and Denali trims. All Sierra HDs have a 6.0-liter gasoline V8 and offer a 6.6-liter turbodiesel V8 with a six-speed Allison transmission as a stand-alone option. The diesel option is pricey but has few rivals when it comes to doing the kind of work that users demand of heavy-duty pickups, and it's one we highly recommend. The base Sierra trim is fairly sparse when it comes to standard equipment, though all of the basic mechanical hardware is shared across all trims and several options are available.

In terms of basic livability, it's worth stepping up to the SLE trim level at a minimum since it adds additional cabin storage, a larger center screen, keyless entry, and under-seat storage plus access to several option packages. Those who want a dose of near-luxury appointments and additional style in their Sierra should check out the SLT trim. It adds 18-inch wheels, leather seat upholstery, dual-zone climate control, an integrated trailer brake controller, power-folding mirrors, heated front seats, and access to additional option packages. At the top of the range is the Denali trim level, which is available only in a crew-cab configuration. It includes upgraded leather seats, revised cabin and exterior trim, 20-inch chrome wheels, a bundle of driver assistance features, a spray-in bedliner, parking alerts, a heated steering wheel and wireless phone charging.

Compared to the Chevrolet Silverado HD, the 2018 GMC Sierra HD is priced somewhat higher and is largely interchangeable save for some cosmetics and feature availability. Overall, there's little reason to pay more for the GMC-badged version of the GM pickup. In any case, diesel models, in particular, have historically enjoyed good residual value, and we expect the trend to continue with the 2018 Sierra and Silverado, which are equipped with an even more capable version of the Duramax diesel engine. As always, Edmunds' truck-shopping tools are ready to help you find the 2018 GMC Sierra HD that's right for your needs.

2018 GMC Sierra 2500HD Overview

The 2018 GMC Sierra 2500HD is offered in the following submodels: Sierra 2500HD Crew Cab, Sierra 2500HD Regular Cab, Sierra 2500HD Double Cab. Available styles include Denali 4dr Crew Cab 4WD SB (6.0L 8cyl 6A), SLT 4dr Crew Cab 4WD SB (6.0L 8cyl 6A), 4dr Crew Cab 4WD SB (6.0L 8cyl 6A), SLE 4dr Crew Cab 4WD SB (6.0L 8cyl 6A), 4dr Crew Cab 4WD LB (6.0L 8cyl 6A), 4dr Double Cab 4WD SB (6.0L 8cyl 6A), SLT 4dr Crew Cab 4WD LB (6.0L 8cyl 6A), SLT 4dr Double Cab 4WD SB (6.0L 8cyl 6A), 2dr Regular Cab 4WD LB (6.0L 8cyl 6A), SLE 4dr Double Cab 4WD SB (6.0L 8cyl 6A), 4dr Double Cab 4WD LB (6.0L 8cyl 6A), 4dr Double Cab LB (6.0L 8cyl 6A), 4dr Crew Cab LB (6.0L 8cyl 6A), SLE 4dr Crew Cab 4WD LB (6.0L 8cyl 6A), SLE 4dr Crew Cab SB (6.0L 8cyl 6A), SLT 4dr Double Cab 4WD LB (6.0L 8cyl 6A), SLT 4dr Double Cab SB (6.0L 8cyl 6A), SLE 4dr Double Cab SB (6.0L 8cyl 6A), 4dr Crew Cab SB (6.0L 8cyl 6A), 2dr Regular Cab LB (6.0L 8cyl 6A), SLE 4dr Double Cab LB (6.0L 8cyl 6A), SLE 4dr Double Cab 4WD LB (6.0L 8cyl 6A), SLT 4dr Double Cab LB (6.0L 8cyl 6A), SLT 4dr Crew Cab SB (6.0L 8cyl 6A), SLE 2dr Regular Cab 4WD LB (6.0L 8cyl 6A), SLE 4dr Crew Cab LB (6.0L 8cyl 6A), SLT 4dr Crew Cab LB (6.0L 8cyl 6A), Denali 4dr Crew Cab SB (6.0L 8cyl 6A), 4dr Double Cab SB (6.0L 8cyl 6A), and SLE 2dr Regular Cab LB (6.0L 8cyl 6A).

What do people think of the 2018 GMC Sierra 2500HD?

Consumer ratings and reviews are also available for the 2018 GMC Sierra 2500HD and all its trim types. 0 Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns (including performance, comfort, value, interior, exterior design, build quality, and reliability) are available as well to provide shoppers with a comprehensive understanding of why customers like the 2018 Sierra 2500HD.

Edmunds Expert Reviews

Edmunds experts have compiled a robust series of ratings and reviews for the 2018 GMC Sierra 2500HD and all model years in our database. Our rich content includes expert reviews and recommendations for the 2018 Sierra 2500HD featuring deep dives into trim levels and features, performance, mpg, safety, interior, and driving. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.

Edmunds Scorecard


Our Review Process

This review was written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.

We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.

Which 2018 GMC Sierra 2500HDS are available in my area?

Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2018 GMC Sierra 2500HD for sale near. There are currently 21 new 2018 Sierra 2500HDS listed for sale in your area, with list prices as low as $44,200 and mileage as low as 0 miles. Simply research the type of car you're interested in and then select a car from our massive database to find cheap vehicles for sale near you. Once you have identified a used vehicle you're interested in, check the Carfax and Autocheck vehicle history reports, read dealer reviews, and find out what other owners paid for the 2018 GMC Sierra 2500HD. Then select Edmunds special offers, perks, deals, and incentives to contact the dealer of your choice and save up to $11,030 on a used or CPO 2018 Sierra 2500HD available from a dealership near you.

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Why trust Edmunds?

Edmunds has deep data on over 6 million new, used, and certified pre-owned vehicles, including rich, trim-level features and specs information like: MSRP, average price paid, warranty information (basic, drivetrain, and maintenance), features (upholstery, bluetooth, navigation, heated seating, cooled seating, cruise control, parking assistance, keyless ignition, satellite radio, folding rears seats ,run flat tires, wheel type, tire size, wheel tire, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, engine torque, engine displacement, transmission), fuel economy (city, highway, combined, fuel capacity, range), vehicle dimensions (length, width, seating capacity, cargo space), car safety, true cost to own. Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, fuel economy, vehicle dimensions, consumer rating, edmunds rating, and color.

Should I lease or buy a 2018 GMC Sierra 2500HD?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

Check out GMC lease specials