2018 GMC Sierra 3500HD Double Cab
- All trims get standard rearview camera
- Base trims get upgraded infotainment system
- Denali models feature a new grille design
- Part of the third Sierra generation introduced in 2014
- Prodigious torque from optional diesel engine
- Quiet cabin for a workhorse truck, even when diesel-equipped
- Solid build quality and high-end feel
- Thick roof pillars create large blind spots
- Some versions don't offer telescoping steering column
2018 GMC Sierra 3500HD Double Cab pricingin Ashburn, VA
Which Sierra 3500HD does Edmunds recommend?
Edmunds' Expert Review
Overall rating3.5 / 5
All heavy-duty trucks are built to handle rigorous towing and hauling needs, especially for professionals in construction and agriculture trades. But they also come in handy for intrepid trailer-travelers and those with a fondness for destroyer-class watercraft. The 2018 GMC Sierra 3500HD, however, adds another layer of comfort and luxury to all these utility tasks, and it does so with rugged exterior design and cabin comforts that you're more likely to find in high-end SUVs. If you want to bask in comfort while breaking a sweat, this is the truck.
Available with two powerful engines and in several cab configurations, the 3500HD can be tailored to fit your priorities, whether interior space, cargo room or maximum towing capacity. The optional diesel engine generates 910 pound-feet of torque — about a third of what a 60-ton Abrams tank engine produces — so there's not much beyond its capabilities before entering the realm of commercial freight hauling.
Ford and Ram also make robust, luxury-trimmed pickups for extreme towing duties, but you'll likely find the 2018 GMC Sierra 3500HD just as appealing.
Trim levels & features
The 2018 GMC Sierra 3500HD heavy-duty pickup truck is available in four trim levels and three cab sizes: regular cab, double cab and crew cab. All are available with two- or four-wheel drive and in either single rear-wheel (SRW) or dual rear-wheel (DRW, or dually) configuration. All 3500 Sierras come with a long bed (8 feet 1 inch) except the crew cab, which in single rear-wheel form offers a choice of long bed or shorter standard bed (6 feet 6 inches).
For buyers interested in a basic heavy-duty truck, the base Sierra comes standard with a 6.0-liter V8 engine (360 horsepower and 380 pound-feet), a six-speed automatic transmission, 18-inch steel wheels, an automatic locking rear differential, xenon headlights, air conditioning, a choice of cloth or vinyl upholstery, a 40/20/40-split front bench with a fold-down center armrest, power door locks, manual crank windows, cruise control and a tilt-only steering wheel.
Also standard are a rearview camera, Bluetooth, a 7-inch touchscreen, a USB port, a four- (regular cab) or six-speaker sound system, and Apple CarPlay and Android Auto smartphone integration.
From the base Sierra on up, you also have your choice of engine. A turbocharged 6.6-liter diesel V8 (445 hp and 910 lb-ft) is available, also paired to a six-speed automatic transmission.
Many options are available for the base Sierra. Highlights include a remote locking tailgate, LED bed lighting, a 110-volt power outlet, satellite radio, and OnStar services with 4G LTE Wi-Fi.
For a slightly less bare-bones experience, the SLE offers an 8-inch touchscreen, 18-inch alloy wheels (single-rear-wheel models only), tinted rear windows, a remote-locking EZ-Lift tailgate, remote keyless entry, carpeted floor, a 60/40-split folding rear seat, full power accessories, a leather-wrapped steering wheel, a CD player, satellite and HD radio, and most of the base Sierra's options.
Further up the ladder is our recommendation, the SLT. Building on the SLE's equipment, the SLT adds foglights, power-folding mirrors, dual-zone automatic climate control, leather upholstery, power-adjustable and heated front seats, 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 luxurious take on your hard-working truck, go with the Denali. It adds 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, an upgraded driver information display, upgraded interior trim, ventilated front seats and a heated steering wheel.
Many of the standard features on upper trims can be added at lower trim levels in grouped packages. Other optional highlights depend on trim level and include different axle ratios, a bed storage box, tonneau covers, trailering mirrors, a sunroof, a gooseneck/fifth-wheel trailering prep package, a rear-seat entertainment system, and a Driver Alert package, which includes front and rear parking sensors, lane departure warning, forward collision warning and a safety-alert driver's seat.
Only available on the SLT is the All Terrain HD package, which includes 18-inch wheels, the Z71 off-road suspension, skid plates, front-and-rear parking sensors and a heated steering wheel. A separate Suspension package (available on the SLE and the SLT) offers hill descent control, skid plates, specially tuned shock absorbers and unique styling treatments.
Noise & vibration3
Ease of use4
Getting in/getting out3.5
Child safety seat accommodation4
Audio & navigation3
Features & Specs
Our experts’ favorite Sierra 3500HD 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 drifting out of the lane, especially helpful on a large truck like this.
- Teen Driver Mode
- Uses custom vehicle settings to limit certain driving features such as vehicle speed and radio volume for secondary drivers.
GMC Sierra 3500HD vs. the competition
2018 GMC Sierra 3500HD
2018 Ford F-350 Super Duty
GMC Sierra 3500HD vs. Ford F-350 Super Duty
Ford's burly heavy-duty truck features a recently fortified frame and aluminum bodywork for lighter weight. Also, its V8 diesel engine can twist even more earth than the Sierra's: 925 lb-ft versus the GMC's 910 lb-ft. That helps the F-350 reach a towing capacity several thousand pounds higher than the Sierra.
GMC Sierra 3500HD vs. Ram 3500
The Ram holds the current heavyweight title, with an optional diesel engine that makes 930 lb-ft of torque from just six cylinders. What can it do with all that power? For starters, it can tow a 30,000-pound fifth-wheel trailer. The Ram also offers far tamer V8 options for drivers who don't need to move mountains. But while the Ram is quite nice in its top trim level, the Sierra still wins for overall refinement.
GMC Sierra 3500HD vs. Chevrolet Silverado 3500HD
This is a fraternal battle that makes a winner out of either side. With both the Sierra and the Silverado sharing the same dimensions, capacities and mechanical elements, this decision comes down to features and creature comforts. Prefer your truck to be a truck and not worry about the ritual beatings of heavy-duty life? Get the Silverado. Need something with a little more panache while driving the partners out around the oil fields? Get the Sierra.
2018 GMC Sierra 3500HD Double Cab Overview
The 2018 GMC Sierra 3500HD Double Cab is offered in the following styles: SLE 4dr Double Cab LB (6.0L 8cyl 6A), 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A), 4dr Double Cab 4WD LB (6.0L 8cyl 6A), SLT 4dr Double Cab LB (6.0L 8cyl 6A), 4dr Double Cab LB DRW (6.0L 8cyl 6A), SLE 4dr Double Cab LB DRW (6.0L 8cyl 6A), SLT 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A), SLT 4dr Double Cab 4WD LB (6.0L 8cyl 6A), 4dr Double Cab LB (6.0L 8cyl 6A), SLT 4dr Double Cab LB DRW (6.0L 8cyl 6A), SLE 4dr Double Cab 4WD LB DRW (6.0L 8cyl 6A), and SLE 4dr Double Cab 4WD LB (6.0L 8cyl 6A).
What do people think of the 2018 GMC Sierra 3500HD Double Cab?
Consumer ratings and reviews are also available for the 2018 GMC Sierra 3500HD Double Cab 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 3500HD Double Cab.
Edmunds Expert Reviews
Edmunds experts have compiled a robust series of ratings and reviews for the 2018 GMC Sierra 3500HD Double Cab and all model years in our database. Our rich analysis includes expert reviews and recommendations for the 2018 Sierra 3500HD Double Cab featuring deep dives into trim levels including SLE, Base, SLT, etc. with careful analysis around pricing, features, performance, mpg, safety, interior, and driving and performance. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.Read our full review of the 2018 GMC Sierra 3500HD Double Cab here.
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.
What's a good price for a New 2018 GMC Sierra 3500HD Double Cab?
Shop with Edmunds for perks and special offers on new cars, trucks, and SUVs near Ashburn, VA. Doing so could save you hundreds or thousands of dollars. Edmunds also provides consumer-driven dealership sales and service reviews to help you make informed decisions about what cars to buy and where to buy them.
Which 2018 GMC Sierra 3500HD Double Cabs are available in my area?
2018 GMC Sierra 3500HD Double Cab Listings and Inventory
Simply research the type of used car you're interested in and then select a car from our massive database to find cheap used cars for sale near you. Once you have identified a 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 3500HD Double Cab.
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 3500HD Double Cab for sale 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 all models of the 2018 GMC Sierra 3500HD Double Cab and all available trim types: SLE, Base, Base, etc. Rich, trim-level features & specs and options data tracked for the 2018 GMC Sierra 3500HD Double Cab include (but are not limited to): MSRP, available incentives and deals, average price paid, warranty information (basic, drivetrain, and maintenance), features (interior and exterior color, upholstery, bluetooth, navigation, cruise control, parking assistance, lane sensing, keyless ignition, satellite radio, folding rears seats,run flat tires, wheel type, tire size, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, torque, engine displacement, transmission), fuel economy and MPG (city, highway, and combined, fuel capacity, range), vehicle dimensions (interior cabin space, vehicle length and width, seating capacity, cargo space). Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, vehicle dimensions, consumer rating, edmunds expert review, safety rating, and color.
Should I lease or buy a 2018 GMC Sierra 3500HD?
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.