Crash Test
Not Tested
Source NHTSA
MPG (up to)
City / HWY
Horsepower
401 -445
Seats
5 -6
Front passenger 3/4 w/ wheels turned.

Positive Owner Reviews

accountCircle Gracie L
The truck is super spacious.
The truck is really spacious and has all the comforts for tall people especially if they sit in the backseat. The dashboard has all the apps so my iPhone can connect to it with messages and calls. The steering is great and the ride is smooth. I changed the stock tires cause I wanted to get other wheels for it but overall I love my truck.
accountCircle Michel Pereria
Has 900kmh on it
Very good truck it is a lot bigger then the old model it is pretty good for towing i just bought it about 9 days ago it is diesel
accountCircle Chux C
One interesting detail is that they have a lot of features.
The only problem I have is that it could have had a little more space because whenever I need to move I will not have space to put my stuff in. The performance is excellent. The comfort is great and comfortable, and the features are very exciting. It is also super fast and has a massive amount of horsepower. I could drive in this all day.
accountCircle Marc allen
Power
Good at it
accountCircle Be H
Denali - strong and beautiful.
Strong engine and incredible comfort. The trim is beautiful and I can trust it to pull my trailer, drive us safely and comfortably all while staying classy. I'd highly recommend replacing the front and rear shocks as the rancho provided are not nearly as good as other aftermarket shock options.
accountCircle Chris L
Need for speed in real life.
I love my car it is the best car company ever and I like the sound of its engine and the power that this thing has,, it has the latest technology stuff in it and very wide selection of styles and designs inside out,, I would recommend this company for everyone who's looking for a badass car.
accountCircle Christina W
If you are looking for a great family truck then look no further, this is it.
The truck is very easy to turn and navigate through heavy traffic. It is very spacious and fits 5 people with plenty of legroom. The salt has many bells and whistles and is the nicest vehicle I have ever owned. The rear window is electronic as well as the tailgate, which is nice. The leather is nice and the front and rear seats are heated for winter which makes my kids very happy on the way to school! Overall my family gives this vehicle 5 stars for sure!
accountCircle Joren U
Best truck ever, do not even look anywhere else!
The truck is awesome. It is comfortable, strong and looks awesome. It has great tech features and connectivity as well as top of the line comfort and safety features that you wouldn't expect in a heavy duty truck. I have no complaints about the vehicle and look forward to driving it whenever I can. It is roomy inside and out. The multi pro tailgate is awesome and makes it easy to get in and out of the bed.

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
401-445 HP 5-6 Seats
car
SLE
401-445 HP 5-6 Seats
car
SLT
401-445 HP 5-6 Seats
car
AT4
401-445 HP 5 Seats
car
Denali
401-445 HP 5 Seats
Photos may not match model

2020 GMC Sierra 2500HD Owner Reviews

4.75
16 Reviews
close Write Review
5 stars 75%
4 stars 25%
3 stars 0%
2 stars 0%
1 star 0%
accountCircle Kh K on May 14, 2021
It is a good one great family truck.
Love everything about it. Big tires, tows well, good on gas. Lots of room, could use a better bed liner when you ask for one. Colors are good, many to pick from. My husband loves it, my kids love it. Should come with an anti scratch but does not. Otherwise it's good.
accountCircle Kate H on December 31, 2020
Reliable luxurious truck!
I have had no issues with my GMC truck. It is very reliable. Great gas mileage for a truck. I would highly recommend this truck to anyone looking for one. I have recommended this vehicle to my parents, and they ended up purchasing one as well and they love it.

Ranks #3 Full Size Pickup Trucks by Owners

The 2020 GMC Sierra 2500HD has an average owner rating of 4.60 out of 5 which ranks it #3 of 13 other Full Size Pickup Trucks.

1
car
4.8
2
car
4.78
3
Tie
car
4.75
3
Tie
car
4.75

Related Articles for 2020 GMC Sierra 2500HD

From the Vehicle History blog

car
GMC Truck Models To Consider In 2020

Safety & Reliability

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