2018 GMC Sierra 2500HD Overview, Reviews, Ratings & Specs

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Crash Test Rating
Source   NHTSA
MPG (up to)
City / HWY
Source FuelEconomy.gov
Horsepower
360 -445
Seats
5 -6
Front passenger 3/4 w/ wheels turned.

Positive Owner Reviews

accountCircle Misty M
It is a diesel vehicle and it does very well with gas.
There are absolutely no problems with this vehicle I love my truck and drives smooth, has an amazing interior. The seats are incredibly comfortable. It is hands-down consider to be my favorite vehicle I have ever owned and it is a high luxury vehicle and my eyes I wouldn't have any other way.
accountCircle Jordan R
Need a truck? The GMC 2500 will meet all your needs.
It is a very quiet diesel. It pulls great, almost like there is nothing behind you. I pull a 8,000 lb camper and forget it is behind me at times. It is very luxurious but also gets the job done. The Denali trim package has every bell and whistle you could want in a truck. The performance of this truck is by far hands down the best I have driven so far, and I have owned many different makes and models with similar towing capabilities.
accountCircle Matthew M
I love my GMC Sierra 2500hd.
I have been very pleased with my Sierra 2500hd. The power is really impressive. I pull equipment with it daily. The interior is very comfortable. The dash/radio setup is very easy to use and enjoyable. I love my truck. I have owned several different brands and my GMC is my favorite.
accountCircle Cody A
Good truck for all around use
I love this truck really pulls trailers nice HS good power and looks great. If you're looking for a truck to take to the ranch or take the wife out on a date this is the one. Wish I got the footsteps with it but that can happen later. Truck drives great and gets good mileage for what it does
accountCircle John M
GMC 2500hd is great all around truck.
I really like the towing power of my truck. The Allison transmission combined with the towing package and exhaust brake make towing easy. I also like the screen and it is functionality. It is much better than my wife’s car. Also enjoy the heated and cooled seats.
accountCircle Angela C
Never goes out of style and never will.
I have always driven GMC or Chevy trucks. They are reliable and last a long time. They are great looking and string. Are very roomy and can tow a trailer very easy. I would and will always recommend these trucks to everyone I know. They are always up to date on performance and have nice colors to choose from.
accountCircle Amanda T
I love the outside look and how it drives.
Very comfortable and love the sunroof and the details of the vehicle. Truck runs great and haven't had any problems with it. I love the stereo system along with the in depth navigation system and the comfort of the seats and it is a very roomy truck.
accountCircle Terry M
GMC sierra is a great truck.
The sierra is one of the most comfortable trucks I have driven. There is plenty of room in the back seat. It has all the power needed to tow our 41 foot 5th wheel. It has a lot of perks like heated seats and steering wheel. The seats will also cool. Ours has a sunroof.

Negative Owner Reviews

accountCircle Keith Johnson
Pile of c**p
Dealership can’t even repair the drivers window. Regen sometimes 10 times per day. Pile of junk stay away. Ford here I come.
accountCircle Cassandra B
Lots of room, it have three seats in the back and there is a lot of space.
Well the color of the car is nice, as well as the way it drives, but this things happens when I drive and it makes a sound, I want to go get it fixed. It could say it is because of the ways I drive but I cannot be one hundred percent sure. Also it does have a lot of space as well. Good radio and can hear throughout the cat.

GMC Sierra 2500HD Models

Models also known as Trim Levels, are used to identify a vehicle's level of equipment or special features.

car
Base
360-445 HP 5-6 Seats
car
SLE
360-445 HP 5-6 Seats
car
SLT
360-445 HP 5-6 Seats
car
Denali
360-445 HP 5 Seats
Photos may not match model

2018 GMC Sierra 2500HD Owner Reviews

4.58
24 Reviews
close Write Review
5 stars 75%
4 stars 17%
3 stars 4%
2 stars 0%
1 star 4%
accountCircle Jordan R on May 27, 2021
Need a truck? The GMC 2500 will meet all your needs.
It is a very quiet diesel. It pulls great, almost like there is nothing behind you. I pull a 8,000 lb camper and forget it is behind me at times. It is very luxurious but also gets the job done. The Denali trim package has every bell and whistle you could want in a truck. The performance of this truck is by far hands down the best I have driven so far, and I have owned many different makes and models with similar towing capabilities.
accountCircle Heath F on May 9, 2021
Best truck on the market!
Has been a wonderful truck with no issues. The only running that I would do different is go back to the dealership and get a diesel Denali. I have gotten regular oil changes and have almost 60000 miles on my original tires. I would recommend this truck to anyone that aged me about a truck.
View All Reviews (24) chevronRightAlternative

Pros from Owners

likeFilled Teresa H.

The size. It is very roomy for a family. It is also very eye appealing. A very beautiful truck. We haven't had any mechanical problems with it. We also got it at a very good price point. Overall we like the truck.

likeFilled Rhonda S.

It's got leather seats heated and heated steering wheel has all bells and whistles, we opted for no sunroof but that's a personal choice, its diesel, it came in a beautiful red color. We bought it to haul campers, it pulls like a dream, we own a 38 ft 5th wheel and never had any problems with its pull ability. It has lots of legroom.

Cons from Owners

dislikeFilled Teresa H.

The cons I can think of is there is no air conditioning vents in the back. Heat as well. That is a HUGE issue for us. We have actually almost decided to trade it for something else because if this issue. It is terribly hot in the backseat.

dislikeFilled Rhonda S.

Its expensive, payments are outrageous, there is no gauge for deft fluid so a guessing game, seats are on the hard side, the cup holders need improvement, and the charger for the phone is a dirt magnet.

Ranks #7 Full Size Pickup Trucks by Owners

The 2018 GMC Sierra 2500HD has an average owner rating of 4.64 out of 5 which ranks it #7 of 14 other Full Size Pickup Trucks.

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Frequently Asked Questions

What might cause my 2018 GMC Sierra check engine light to come on?

Answer: In any vehicle, the check engine light is essentially a catch all for a number of different things that can go wrong, and Your 2018 GMC Sierra is no different. It's an indicator that You need to check...
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Answers are provided by third parties. We do not guarantee accuracy of responses

Safety & Reliability

NHTSA Logo
NHTSA Crash Test

Overall

Front

Rollover

Side

*National Highway Traffic Safety Administration
IIHS Logo
IIHS Crash Test
(Not Tested)
*Insurance Institute for Highway Safety