2020 GMC Sierra 2500
Compare GMC Sierra 2500 Models
- Standard
- Optional
- Unavailable
| Engine | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter | V8, Turbo Diesel, 6.6 Liter |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bed Length | 8 | 6.5 | 8 | 6.5 | 8 | 8 | 6.5 | 8 | 6.5 | 8 | 6.5 | 8 | 8 | 6.5 | 6.5 | 8 | 6.5 | 8 |
| Cab Style | Regular | Extended | Extended | Crew | Crew | Regular | Extended | Extended | Extended | Extended | Crew | Crew | Crew | Crew | Crew | Crew | Crew | Crew |
| Adaptive Cruise Control | ||||||||||||||||||
| Cooled Seats | ||||||||||||||||||
| Keyless Ignition | ||||||||||||||||||
| Third Row Seat |
2020 GMC Sierra 2500 Owner Reviews
Average Rating for 2020
4.2
92 Verified Owner Ratings
What Owners Love
2020 GMC Sierra 2500 owners rated their vehicle across 25 attributes. Here are the three they loved most.
Towing Capability
Cargo Space
Roominess
Top 2020 Reviews
Justin H. from MT
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
GMC makes a great, quality truck. The size takes a little getting used to but after a short time you won't want to drive anything else. This is my 3rd Duramax and I'm extremely impressed with how it hauls and drives.
Andrew L. from NH
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
its brilliant, luxury and power blend
Luz B. from CA
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
It is excellent, and apply to all my needs and expectations
Douglas H. from CA
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
it's got a lot of power and the transmission is smooth
Robert E. from CA
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
My 2017 (same model) got better mileage than this 2020.....thought the new 10 speed tranny would have made it better. All in all a great truck.
Christopher F. from FL
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
Great fuel mileage good looking solid truck. It would haul my house if my house had wheels.
Richard B. from FL
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
Great for pulling our travel trailer, 16,000 pounds.
Rodney L. from ID
Verified Owner · May, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
I really like the gas engine in the 6.6 liter. It gives me enough power to haul my 5th wheel and I don't have to mess with the DEF.
Ian D. from PA
Verified Owner · Jun, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
Don't Buy Denali HD Diesel GM could design the emissions system to be reliable so buy a ford
Fred B. from GA
Verified Owner · Jul, 2020
2020 GMC Sierra 2500 HD/3500 Crew Cab 4WD
It's a fine vehicle and looks good also.