Used 2018 GMC Sierra 2500HD Crew Cab
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
- 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
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.
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.
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.
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.
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.
Most helpful consumer reviews
Denali 4dr Crew Cab 4WD SB (6.0L 8cyl 6A)
I purchased too pull our travel trailer. the old truck 2015 1500 struggled to keep up with highway speeds. This one pulls the trailer great no problem keeping up with Highway speeds. The only issue is the DEF requirements. about every thousand miles it takes a little more than a gallon to keep it topped off. Needs a better monitoring system. The diesel engine runs great and gets better fuel economy than the gas when pulling the trailer.
SLE 4dr Crew Cab LB (6.0L 8cyl 6A)
Pulling my camper is great. Pulling large travel trailer is a dream. Hardly know it's back there. Great mpg. Diesel is great. Empty I'm getting 23 mpg. Pulling getting 15 mpg. Previous truck getting 9 mph. Rides real good. 5k miles on it now. No issues so far. My 2018 GMC Sierra 2500 HD crew cab has been just awesome. 22000miles on it now. It's boss on the open road. Hills are no problem. Rolls up down hills with ease. Other trucks going by are in passing gear mode. I'm purring down the road. I'd buy it again.
SLT 4dr Crew Cab LB (6.0L 8cyl 6A)
i was able to purchest a gmc 2500 slt and it is the best buy i have had in long time thank you gmc.
Denali 4dr Crew Cab SB (6.0L 8cyl 6A)
If u want a truck with tons of power this is the one . 6.6 duramax diesel. 50,000 Kms now and still loving it. Tows well looks great don’t think you’ll be disappointed.
Features & Specs
Our experts like the Sierra 2500HD models:
- 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.