2020 GMC Sierra 2500HD Reviews, Pricing & Specs

Front 3/4 profile of the 2020 GMC Sierra 2500HD. thumbnail
Side profile of the 2020 GMC Sierra 2500HD. thumbnail
Rear 3/4 profile of the 2020 GMC Sierra 2500HD. thumbnail
Front profile of the 2020 GMC Sierra 2500HD. thumbnail
Rear profile of the 2020 GMC Sierra 2500HD. thumbnail
Multi-Pro tailgate of the 2020 GMC Sierra 2500HD. thumbnail
Second row of the 2020 GMC Sierra 2500HD. thumbnail
Dash area of the 2020 GMC Sierra 2500HD. thumbnail
Rear seat console of the 2020 GMC Sierra 2500HD. thumbnail
Head-up display of the 2020 GMC Sierra 2500HD. thumbnail
Apple CarPlay screen of the 2020 GMC Sierra 2500HD. thumbnail
Parking sensor display of the 2020 GMC Sierra 2500HD. thumbnail
Driver assistance systems of the 2020 GMC Sierra 2500HD. thumbnail
Backup camera of the 2020 GMC Sierra 2500HD. thumbnail
Duramax diesel engine of the 2020 GMC Sierra 2500HD. thumbnail
2020 GMC Sierra 2500 HD Denali thumbnail

$35,800 to $64,500

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What owners say

AI Summary · 7 reviews

"Overall, owners are very pleased with the 2020 GMC Sierra 2500HD, praising its performance, comfort, and towing capabilities. Many highlighted its power and appealing features. However, some found the pricing a bit high for the year and model, expressing a preference for newer options."

4.9
7 reviews
5
4
3
2
1
Write a review
by Cristobal R

Absolutely love the truck and it was at a good price for the amount of miles and condition!

December 17, 2025
by David Z

Looks great but a little pricey for the year. Even though it has low mileage. I would buy a newer truck.

November 19, 2025
by David S

The GMC 2500 HD is the truck for me. Like all the other major brands of trucks the price is in the same range. The diesel engine and 4x4 is about good as it gets. For work or play GMC is the way!!

December 28, 2023

Trims & specs

SLE Crew Cab LB RWD specifications

Base MSRP

$47,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab RWD specifications

Base MSRP

$42,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

AT4 Crew Cab 4WD specifications

Base MSRP

$58,300

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Double Cab RWD specifications

Base MSRP

$51,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Denali Crew Cab 4WD specifications

Base MSRP

$64,300

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Double Cab RWD LB specifications

Base MSRP

$53,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab 4WD specifications

Base MSRP

$44,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Double Cab LB RWD specifications

Base MSRP

$38,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab 4WD specifications

Base MSRP

$55,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab LB RWD specifications

Base MSRP

$45,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base LB RWD specifications

Base MSRP

$35,800

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE LB RWD specifications

Base MSRP

$40,400

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base Crew Cab LB 4WD specifications

Base MSRP

$43,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

AT4 Crew Cab LB 4WD specifications

Base MSRP

$58,500

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Denali Crew Cab LB 4WD specifications

Base MSRP

$64,500

Seating

5

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base Crew Cab RWD specifications

Base MSRP

$40,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab RWD specifications

Base MSRP

$44,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab RWD specifications

Base MSRP

$52,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base Crew Cab 4WD specifications

Base MSRP

$43,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base Crew Cab LB RWD specifications

Base MSRP

$40,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab LB RWD specifications

Base MSRP

$51,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Double Cab RWD specifications

Base MSRP

$38,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Crew Cab LB 4WD specifications

Base MSRP

$47,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Crew Cab LB 4WD specifications

Base MSRP

$55,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base Double Cab 4WD specifications

Base MSRP

$41,200

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab 4WD specifications

Base MSRP

$42,600

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Double Cab 4WD specifications

Base MSRP

$53,800

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base Double Cab LB 4WD specifications

Base MSRP

$41,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE Double Cab LB 4WD specifications

Base MSRP

$45,400

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLT Double Cab LB 4WD specifications

Base MSRP

$54,000

Seating

6

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Base LB 4WD specifications

Base MSRP

$38,600

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

SLE LB 4WD specifications

Base MSRP

$43,200

Seating

3

Engine

N/A

Cargo Capacity

N/A

Combined MPG

N/A

Drivetrain

N/A

Pricing trends

MSRP range

$35,800 - $64,500

Current avg. market price

$56,542

Trending up by 2.1% this month

May 2026 - October 2026

See full price trends

$35,800 to $64,500

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© 2026 CarGurus, Inc., All Rights Reserved.