Used 2018 GMC Sierra 2500HD Consumer Reviews
We have a limited number of reviews for the 2018 Sierra 2500HD, so we've included reviews for other years of the Sierra 2500HD since its last redesign.
Black & Chrome Beauty
RT, 12/23/2017
2017 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.0L 8cyl 6A)
15 of 15 people found this review helpful
I’ve driven many diesel powered pickups here at home and abroad for over 35 years. The new, 6.6L Diesel Duramax/Allison, is the center of Sierra’s Universe and maybe a home run for GM against its competition. The new hood scoop design brings conversation at every refueling stop. To bad Edmunds didn’t include any photos of this hood, on their review. This is a large pickup and not a sports car but folks this truck is a thrill to drive. It handles the road seconded to no other heavy duty pickup I’ve ever driven and again I’ve driven many. My wife, (5’ 115lbs), drives this vehicle with ease and can even parallel park. It’s quite ( wind, and tire noise is minimal and no diesel clatter! ),the interior is cavernous, the leather is top grade, the control knobs are large and easy to manipulate, storage and cup holders are everywhere, the infotainment system has been upgraded regularly and the voice recognition has improved. The torque this engine produces from approximately 1650rpms and flat throughout the rpm range makes towing my 12,000lb travel trailer with ease. I can’t wait to go out west and enjoy the Rocky Mountains. I only have 10k miles on it, I may add another review in the future but today I have to hit the road in my 2017 GMC 2500HD Diesel Sierra Denali. I did give it a couple of 4 Stars because, it didn’t have lights in the glove boxes and center console and no automatic up/down lighted running boards but the was easily rectified.
Great Diesel Truck
Tom, 12/23/2015
updated 12/28/2016
2015 GMC Sierra 2500HD SLT 4dr Double Cab 4WD LB (6.0L 8cyl 6A)
12 of 12 people found this review helpful
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.
- Safety
- Technology
- Performance
- Interior
- Comfort
- Reliability
- Value
Trailer Hauler
BG, 11/05/2018
updated 11/07/2022
2018 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.0L 8cyl 6A)
11 of 11 people found this review helpful
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.
- Safety
- Technology
- Performance
- Interior
- Comfort
- Reliability
- Value
Duramax
A. Simms, 09/25/2018
2015 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.0L 8cyl 6A)
6 of 6 people found this review helpful
This is a 6.6 Duramax crew. There was not an option when writing a review. I bought this truck used with 44k miles on it in February 2018 from a private party. This is the nicest vehicle I have ever owned. I have no issues with the headlights so they either were replaced or people are over reacting. This is my daily driver and I average 17mpg. 9 miles to work and mostly in town driving. I love towing with this truck!!! We have a 25’ Travel trailer and it’s like it’s not even back there. I love the exhaust brake and tow button. I am trying to think of something I don’t like about it but it’s hard. The interior is awesome and the seats are comfy. We have taken a handful of road trips already and can’t wait to take more. It has every option except the heated steering wheel. I even have the remote start which is awesome!! I added oversized tires and wrapped the grille and mirrors. I also put a spray liner on both front and back bumper. The rest is stock. This is a beautiful truck inside and out. I get tons of compliments. I will be keeping this for many years.
Duramax!
JD, 10/08/2015
2015 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.0L 8cyl 6A)
9 of 10 people found this review helpful
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!
- Safety
- Technology
- Performance
- Interior
- Comfort
- Reliability
- Value
