Impressive hauling and towing capabilities; carries on predecessor's refined and quiet ride; strong diesel engine; available CNG fueling for regular V8; solid build quality.
Touchscreen interface can be slow to respond; telescoping steering column not available on base model.
What's New for 2015
Redesigned for 2015, the GMC Sierra 2500HD offers an improved interior, updated styling, new safety features and a new double-cab body style.
GMC has long been known as the dedicated truck division of General Motors. But pretty much everybody also knows that its vehicles are platform twins to various Chevrolets models, differing chiefly in styling and as such sharing the same strengths and weaknesses. Thus, the 2015 GMC Sierra 2500HD is very similar to the Chevy Silverado 2500HD. Nothing wrong with that, as it means there's plenty of good and not much bad to speak of with this rig. This year's fully redesigned Sierra brings new styling, a new double cab model (which slots in between the regular and crew cabs) and an improved cabin, both in terms of quality and features. Unchanged are the formidable powertrain options.
As with its Chevy cousin, the Sierra 2500HD neatly splits the difference between the 1500 light-duty pickup and the more capable 3500HD heavy-duty workhorse (which can be had in a dual-rear-wheel configuration). With potent power plants and a wide range of body styles, trim levels and options, the Sierra 2500HD can serve as anything from a basic work truck to a plush six-passenger tow vehicle for your luxury RV or horse trailer. With maximum hauling and towing capacities of 3,760 and 17,900 pounds, respectively, this Sierra should be able to handle most tasks with ease. And features such as integrated cruise control, automatic grade braking, trailer sway control and, on diesels, diesel exhaust braking, all help make towing smoother and easier.
Choosing among the mainstays in the heavy-duty pickup truck segment can be tough, but in a good way. They are all solid choices and probably all have quite a bit more capability than you'll ever likely need. As such, the 2015 Ford F-250 Super Duty and 2015 Ram 2500 are worth checking out as well. Still, you won't go wrong choosing the 2015 GMC Sierra 2500HD, as it earns our praise for its compliant ride, smooth powertrains, solid build quality and strong overall performance.
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Body Styles, Trim Levels, and Options
The 2015 GMC Sierra 2500HD is offered in regular cab, double cab and crew cab body styles with a choice of two- or four-wheel drive. The regular cab is available only with a long bed (8 feet), while the double cab and crew cab models can be mated to either a standard bed (6.5 feet) or a long bed. Unlike its 3500 big brother, the Sierra 2500HD is not available with a dual-rear-wheel (DRW, or "dually") axle.
Trim levels start at the base Work Truck and climb to the SLE, SLT and range-topping Denali. The SLT trim is available only on the double and crew cabs, while the Denali is available only as a crew cab.
The Work Truck comes standard with chrome bumpers, 17-inch steel wheels, rubber floor covering, a choice of cloth or vinyl upholstery, a 40/20/40-split front bench with a fold-down center armrest, power door locks, cruise control, a tilt steering wheel, a 4.2-inch color display and a four- or six-speaker sound system with USB/iPod integration and an auxiliary audio jack.
Stepping up to the SLE adds alloy wheels, tinted rear windows, cargo box illumination, keyless entry, an automatic locking rear differential, a heavy-duty trailering package (with integrated trailer brake controller), a rearview camera, full power accessories, a leather-wrapped steering wheel, carpeting, an 8-inch touchscreen with the GMC IntelliLink interface, 4G LTE WiFi, smartphone integration, Bluetooth phone and audio connectivity, voice controls (cell phones and music), OnStar and an upgraded audio system with a CD player and satellite radio.
The SLT trim level further adds 18-inch alloy wheels, added chrome trim, foglights, power-folding mirrors, an upgraded tailgate, dual-zone automatic climate control, an auto-dimming rearview mirror, remote ignition, power-adjustable pedals, leather upholstery, eight-way power front seats (with power lumbar), heated front seats, driver memory settings, a rearview camera and a 110-volt power point.
On top of the SLT features, the Denali will get you more chrome exterior accents, chrome side steps, a spray-in bedliner, a power-sliding rear window with defogger, a locking tailgate, front and rear park assist, a navigation system, a Bose audio system, a configurable gauge cluster display, front bucket seats, ventilated front seats and a heated and telescoping steering wheel.
Some 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 20-inch wheels, different axle ratios, a bed storage box, various tonneau covers, trailering mirrors, a sunroof, a Driver Alert package (includes front and rear parking sensors, lane departure warning, forward-collision alert and a safety alert driver seat) and a rear-seat entertainment system.
Also available is the Z71 Off-Road package, which includes 18-inch polished alloy wheels, hill descent control, skid plates, specially tuned shock absorbers, a different front stabilizer bar and unique styling tweaks. The Sierra All Terrain HD package (for 4WD SLE and SLT) bundles the Z71 package with aluminum underbody shields and special exterior graphics.
Powertrains and Performance
A 6.0-liter V8 engine that produces 360 horsepower and 380 pound-feet of torque is standard, as is a six-speed automatic transmission. Buyers can add a bi-fuel option to this engine, allowing the truck to run on either gasoline or compressed natural gas (CNG). When operating with CNG, power output drops to 301 hp and 333 lb-ft of torque. An optional turbocharged 6.6-liter diesel V8, also paired to a six-speed automatic, produces 397 hp and 765 lb-ft of torque.
Rear-wheel drive is standard for all models, with four-wheel drive optional.
Properly equipped, a 2015 GMC Sierra 2500HD can haul up to 3,760 pounds of payload. It can tow up to 13,000 pounds with its standard ball hitch and 17,900 pounds with a fifth-wheel hitch. At the Edmunds test track, a Chevy Silverado 2500HD LTZ Crew Cab 4WD, which is very similar to a Sierra 2500HD SLT Crew Cab 4WD, sprinted from zero to 60 in just 6.6 seconds. That's impressively quick for a heavy-duty pickup, let alone one that's a crew cab with 4WD.
Standard safety features include antilock disc brakes, traction and stability control (with trailer sway control), front-seat side airbags and full-length side curtain airbags. Also standard is OnStar (includes automatic crash notification, on-demand roadside assistance, remote door unlocking, stolen-vehicle assistance and turn-by-turn navigation). Upper trims also include power-adjustable pedals, a rearview camera and front and rear parking sensors.
Optional safety equipment includes the Driver Alert package (includes lane-departure alert, forward-collision alert, safety alert seat and front and rear park assist).
During Edmunds' testing, the similar Silverado 2500HD LTZ Crew Cab 4WD came to a stop from 60 mph in 135 feet, which is about average for this segment.
The government gave the Sierra 2500HD regular cab and double cab models three out of five stars for overall crash protection, with just two stars for total frontal protection and five stars for total side-impact protection. The crew cab version did better, with four stars for overall crash protection, with four stars for total frontal protection and five stars for total side-impact protection.
Interior Design and Special Features
The overall quality and design of the Sierra 2500HD's cabin is noticeably improved over the previous generation's. Materials are of high quality, and the gauge cluster's crisp graphics are a snap to read day or night. The design is attractive, and top trim levels boast handsome accent stitching atop the dash. Frequently used controls, such as those for the radio's volume and tuning as well as those for adjusting the cabin's climate, are large and well-placed.
The central information display located between the tachometer and the speedometer is intuitive to navigate, and its graphics are simple and easily interpreted. On the center stack, both the 4.2- and 8-inch IntelliLink color infotainment displays feature sophisticated (and in some cases reconfigurable) graphics options. Unfortunately, IntelliLink can sometimes be slow to respond to your touch inputs.
The Sierra's front seats are amply sized, supportive and fairly comfortable. The lack of a telescoping steering wheel option in the base trim, however, may make it harder for some people to get an ideal driving position. In the crew cab, there's no need to call "shotgun," as the comfortable backseat is well-bolstered and angled appropriately for solid leg and back support. Although most of our staffers found the seats, front or rear, to be very accommodating, those of slighter builds may find them a bit too wide.
The 2015 GMC Sierra 2500HD manages to provide a comfortable ride along with its strong work capacity, thanks to its stiff frame and a suspension that can not only handle higher loads but also smooth out rough roads. Compared to the Sierra 1500, there's a bit more road noise from the HD's beefier tires and wind noise from its larger mirrors, but overall the cabin is quite serene.
When towing a trailer, the strong diesel engine helps accelerate this big truck with authority. And while it's descending a grade, the exhaust brake also works with well-timed downshifts from the transmission to help out with vehicle stability. Also minimizing stress on long trips with a trailer in tow is the Sierra's cruise control system. Linked into the transmission calibration, it does a fine job of holding your target speed as downshifts happen more readily on descents, providing additional engine braking and keeping speed in check.
Around turns, the big truck's steering has a light, precise feel, and body roll is decently controlled. Tight maneuvering situations, such as when parking or negotiating a multi-point turn, can take a hefty amount of wheel turning. But this isn't unexpected from a heavy-duty pickup.
Reviews from owners of the 2015 GMC Sierra 2500HD Base
by Randy Shuck on May 17, 2016 Vehicle: 2015 GMC Sierra 2500HD
The day I brought the truck home I noticed that the heater would not change from defrost.Then after a couple of weeks water leaked on drivers side front and back.All carpet had to be replaced.Then water leaked on passenger side.The truck has 3100 miles on it and has been in the shop 16 days.Im wondering what will be next.Its obvious GM dosent build a quality truck any more.
by Tom on Dec 22, 2015 Vehicle: 2015 GMC Sierra 2500HD
Bought this SLT model after trading in a 13 2500 HD Denali. Needed to pull a 16000 lb Fiver camper. This Pickup has extreme power and smooth shifting. Thought about getting a single rear tire toner till I realized the only difference was an extra leaf spring is all. I had automatic step sides that come down when you open the door and that made access in and out easy even the wife enjoys it. I have 13000 on it now. I guess I don't see any issue with the headlights seem the same although I did notice at the parts counter upgraded bulbs on the counter so maybe that fixed the issue. I especially like the bright lights in the side mirrors for backing up at night. No problems with the leather or accessories, I did get extended warranty just in case. mileage varies about 8 mph pulling the camper and 17 mpg on the highway not pulling town about 15. Seems like a great pickup more to come.
by Frosty on Nov 28, 2015 Vehicle: 2015 GMC Sierra 2500HD
Well folks I'm back we've been to the dealer 4 times the headlights are terrible . I asked the service manager to load his family up and take it for a spin as I hate to drive at night . The headlights are only producing 1250 lumens when they should be 2500 to allow for proper visual at night . Please give this vehicle a drive at night and try to turn onto a side road make sure you have the salesman in the passenger seat !!!!.
by Jon on Oct 19, 2015 Vehicle: 2015 GMC Sierra 2500HD
So, yes. The SD card reader is pretty much useless. But all of the storage is amazing. The 6.6 is amazing along with the Allison transmission. I'm getting 17 in town and 20-21 on highway. Towing my tractor around is a breeze almost forget it's behind me. I did read the other reviews and the gap at the tailgate is real, and it does let a lot of dust in, However you can buy a seal kit for it. The safety features are cool. With the vibrating seats, lane departure detection, and back up camera, if you crash and it's your fault. It is actually your fault. bottom line I've owned a lot of vehicles, other than a minivan which I haven't owned but have been in and was amazed at the comfort and room this is the best and most useful vehicle you can get.
by JD on Oct 8, 2015 Vehicle: 2015 GMC Sierra 2500HD
There is no drop-down option for the Duramax Diesel version. Traded in a 2014 Denali 1500 for the big boy. I love this truck. No car/truck is perfect but the Duramax is the best Diesel engine on the road IMO. Sometimes the radio is quirky when plugging in my iphone so I just stream over bluetooth. I've noticed that the power steering takes more arm strength when maneuvering tight spots, more-so than other truck brands. The headlights are a less than great and should be recalled. I am hoping the new headlights that come on the 2016s will be interchangeable.
I love my truck. It turns a lot of heads.. especially mine!
by Brad on Sep 10, 2015 Vehicle: 2015 GMC Sierra 2500HD
only 1700 miles on the truck and had it in the dealer twice for an oil leak. The oil pan has surface cracking, apparently acceptable to GM as it is on every truck. The wax coating on the frame can be easily removed by a fingernail and already has rust coming through mainly on the joints as if it was not applied properly or the coating method is simply insufficient. I actually bought 2 of these trucks and both have had paint issues. the 1st truck had the 3.73 axle, which has a poor tow rating of only 9200 pounds or so. this information cannot be found on the website and the website shows you cant even get the 3.73 with the gas engine. sunglasses holder is oddly shaped and won't fit regular sunglasses. the manual shift mode doesn't allow you to shift up when coasting downhill or something. the truck always seams to be down one gear lower than it should be when coasting and tow mode is off. the passenger tow mirror is very poor for visibility and doesn't show the side of my trailer as my f150 did. the led lighting is cool but there are wires that can get snagged under the bed rails. ride is more firm than previous models which I like. Ipod playback is horrible. very slow to respond and often doesn't work at all. dealer said it works fine. air conditioner lowers for phone calls which is cool. towing uphill isn't very good. the truck bounces between 2 gears, one which is excessively high and the other is to low to maintain speed.
This is the estimated average annual insurance premium being charged in your state. The premium has been determined based on annual premium data for defined coverages (liability, comprehensive and collision) from a major insurer.
While this information is specific to vehicle make, model, model year and body type, your personal information is not taken into consideration and could greatly alter the actual premium quoted by an insurer. Factors that will affect your rate include your age, marital status, credit history, driving record, and the garaging address of your vehicle.
The Edmunds TCO®
monthly insurance payment for a 2015 GMC Sierra 2500HD
in VA is: