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  • Smokey Quartz Metallic 2020 GMC Sierra 1500 AT4Smokey Quartz Metallic 2020 GMC Sierra 1500 AT4Smokey Quartz Metallic 2020 GMC Sierra 1500 AT4Smokey Quartz Metallic 2020 GMC Sierra 1500 AT4Smokey Quartz Metallic 2020 GMC Sierra 1500 AT4Smokey Quartz Metallic 2020 GMC Sierra 1500 AT4

    $33,798

    $201
    101,195 mi.
    Est. $602/mo

    Mountain States Toyota

    4.5
    Check Availability
    Denver, CO (18 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 DenaliCarbon Black Metallic 2020 GMC Sierra 1500 Denali

    $29,998

    $2.2K
    138,818 mi.
    Est. $534/mo

    Larry H. Miller Chrysler Dodge Jeep Ram 104th

    4.3
    Check Availability
    Thornton, CO (20 mi)
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  • GRAY 2020 GMC Sierra 1500 SLTGRAY 2020 GMC Sierra 1500 SLTGRAY 2020 GMC Sierra 1500 SLTGRAY 2020 GMC Sierra 1500 SLTGRAY 2020 GMC Sierra 1500 SLTGRAY 2020 GMC Sierra 1500 SLT

    $32,999

    130,838 mi.
    Est. $588/mo

    Super Auto Company, Inc.

    5.0
    Check Availability
    Denver, CO (12 mi)
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  • White 2020 GMC Sierra 1500 SLTWhite 2020 GMC Sierra 1500 SLTWhite 2020 GMC Sierra 1500 SLTWhite 2020 GMC Sierra 1500 SLTWhite 2020 GMC Sierra 1500 SLTWhite 2020 GMC Sierra 1500 SLT

    $30,289

    $200
    98,600 mi.
    Est. $540/mo

    AutoSearch USA

    5.0
    Check Availability
    Louisville, CO (22 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4

    $39,995

    87,286 mi.
    Est. $713/mo

    Berkenkotter Motors Castle Rock

    4.4
    Check Availability
    Castle Rock, CO (29 mi)
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  • White Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 DenaliWhite Frost Tricoat 2020 GMC Sierra 1500 Denali

    $35,999

    $1.5K
    83,460 mi.
    Est. $641/mo

    Mike Ward INFINITI

    4.6
    Check Availability
    Highlands Ranch, CO (15 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 ElevationRed Quartz Tintcoat 2020 GMC Sierra 1500 Elevation

    $29,791

    $5.2K
    89,503 mi.
    Est. $531/mo

    Groove Toyota

    4.5
    Check Availability
    Englewood, CO (14 mi)
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  • Gray 2020 GMC Sierra 1500 AT4Gray 2020 GMC Sierra 1500 AT4Gray 2020 GMC Sierra 1500 AT4Gray 2020 GMC Sierra 1500 AT4Gray 2020 GMC Sierra 1500 AT4Gray 2020 GMC Sierra 1500 AT4

    $29,995

    90,217 mi.
    Est. $534/mo

    Central Park Auto

    Check Availability
    Aurora, CO (21 mi)
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  • Red 2020 GMC Sierra 1500 ElevationRed 2020 GMC Sierra 1500 ElevationRed 2020 GMC Sierra 1500 ElevationRed 2020 GMC Sierra 1500 ElevationRed 2020 GMC Sierra 1500 ElevationRed 2020 GMC Sierra 1500 Elevation

    $28,998

    115,162 mi.
    Est. $517/mo

    Levis Auto Sales

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    Denver, CO (12 mi)
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  • Summit White 2020 GMC Sierra 1500 ElevationSummit White 2020 GMC Sierra 1500 ElevationSummit White 2020 GMC Sierra 1500 ElevationSummit White 2020 GMC Sierra 1500 ElevationSummit White 2020 GMC Sierra 1500 ElevationSummit White 2020 GMC Sierra 1500 Elevation

    $26,990

    $1K
    100,473 mi.
    Est. $481/mo

    Urban Motors Blue

    Check Availability
    Denver, CO (11 mi)
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  • Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4

    $34,200

    $798
    118,515 mi.
    Est. $609/mo

    Berkenkotter Motors Parker

    4.7
    Check Availability
    Parker, CO (27 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 SLTPacific Blue Metallic 2020 GMC Sierra 1500 SLTPacific Blue Metallic 2020 GMC Sierra 1500 SLTPacific Blue Metallic 2020 GMC Sierra 1500 SLTPacific Blue Metallic 2020 GMC Sierra 1500 SLTPacific Blue Metallic 2020 GMC Sierra 1500 SLT

    $34,599

    91,386 mi.
    Est. $616/mo

    Castle Rock Chevrolet GMC

    4.4
    Check Availability
    Castle Rock, CO (30 mi)
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  • Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4Summit White 2020 GMC Sierra 1500 AT4

    $42,488

    60,803 mi.
    Est. $757/mo

    Johnson Auto Plaza

    3.4
    Check Availability
    Brighton, CO (29 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4Red Quartz Tintcoat 2020 GMC Sierra 1500 AT4

    $37,291

    75,087 mi.
    Est. $664/mo

    Auto Mart USA

    Check Availability
    Aurora, CO (21 mi)
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  • White 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 ElevationWhite 2020 GMC Sierra 1500 Elevation

    $30,998

    $4K
    71,761 mi.
    Est. $552/mo

    AutoNation Subaru Arapahoe

    4.4
    Check Availability
    Centennial, CO (21 mi)
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  • BLACK 2020 GMC Sierra 1500 ElevationBLACK 2020 GMC Sierra 1500 ElevationBLACK 2020 GMC Sierra 1500 ElevationBLACK 2020 GMC Sierra 1500 ElevationBLACK 2020 GMC Sierra 1500 ElevationBLACK 2020 GMC Sierra 1500 Elevation

    $32,998

    $3K
    82,270 mi.
    Est. $588/mo

    Super Auto Company, Inc.

    5.0
    Check Availability
    Denver, CO (12 mi)
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  • Silver 2020 GMC Sierra 1500 DenaliSilver 2020 GMC Sierra 1500 DenaliSilver 2020 GMC Sierra 1500 DenaliSilver 2020 GMC Sierra 1500 DenaliSilver 2020 GMC Sierra 1500 DenaliSilver 2020 GMC Sierra 1500 Denali

    $38,998

    74,685 mi.
    Est. $695/mo

    Colorado Auto Finders

    4.0
    Check Availability
    Centennial, CO (22 mi)
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  • White Frost 2020 GMC Sierra 1500 DENALIWhite Frost 2020 GMC Sierra 1500 DENALIWhite Frost 2020 GMC Sierra 1500 DENALIWhite Frost 2020 GMC Sierra 1500 DENALIWhite Frost 2020 GMC Sierra 1500 DENALIWhite Frost 2020 GMC Sierra 1500 DENALI

    $57,000

    44,027 mi.
    Est. $1,016/mo

    Freeway Ford

    Check Availability
    Denver, CO (17 mi)
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  • Summit White 2020 GMC Sierra 1500 AT4

    $37,705

    82,112 mi.
    Est. $672/mo

    Mike Maroone Cadillac GMC

    4.6
    Check Availability
    Boulder, CO (25 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 1500 Denali

    Not Priced

    67,575 mi.

    Castle Rock Chevrolet GMC

    4.4
    Check Availability
    Castle Rock, CO (30 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 Denali

    $37,999

    88,671 mi.
    Est. $677/mo

    AutoNation Buick GMC West

    4.0
    Check Availability
    Golden, CO (6 mi)
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  • Black 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 Denali

    $39,998

    47,050 mi.
    Est. $713/mo

    CarMax El Paso

    Check Availability
    $399 delivery to Golden, CO (6 mi)
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  • Gray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLEGray 2020 GMC Sierra 1500 SLE

    $33,998

    55,745 mi.
    Est. $606/mo

    CarMax Alliance

    4.4
    Check Availability
    $649 delivery to Golden, CO (6 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 DenaliDark Sky Metallic 2020 GMC Sierra 1500 DenaliDark Sky Metallic 2020 GMC Sierra 1500 DenaliDark Sky Metallic 2020 GMC Sierra 1500 DenaliDark Sky Metallic 2020 GMC Sierra 1500 DenaliDark Sky Metallic 2020 GMC Sierra 1500 Denali

    $32,498

    $500
    117,297 mi.
    Est. $579/mo

    Mike Maroone Chevrolet GMC

    4.1
    Check Availability
    Longmont, CO (37 mi)
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  • Black 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 DenaliBlack 2020 GMC Sierra 1500 Denali

    $42,881

    $1K
    60,079 mi.
    Est. $764/mo

    Sterling Auto Sales - Frederick

    Check Availability
    Longmont, CO (35 mi)
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  • Gray 2020 GMC Sierra 1500 ElevationGray 2020 GMC Sierra 1500 ElevationGray 2020 GMC Sierra 1500 ElevationGray 2020 GMC Sierra 1500 ElevationGray 2020 GMC Sierra 1500 ElevationGray 2020 GMC Sierra 1500 Elevation

    $28,584

    108,649 mi.
    Est. $509/mo

    Sterling Auto Sales - Frederick

    Check Availability
    Longmont, CO (35 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $68,711 5 Good deals
2025 GMC Sierra 1500 $54,204 6 Great deals
2024 GMC Sierra 1500 $50,074 8 Great deals
2023 GMC Sierra 1500 $49,105 14 Good deals
2022 GMC Sierra 1500 $41,087 7 Great deals
2021 GMC Sierra 1500 $37,099 10 Great deals
2019 GMC Sierra 1500 $35,144 20 Good deals
2018 GMC Sierra 1500 $28,410 17 Good deals

About the 2020 GMC Sierra 1500

Basics

Base shown (base trim).

Seating
3
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
17
Transmission
6-Speed A/T
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
Side view of the 2020 GMC Sierra 1500
FAQs

How much does the 2020 GMC Sierra 1500 cost?

The 2020 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 1500 is $34,024, with pricing starting at $14,999.

What is the MPG of the 2020 GMC Sierra 1500?

The 2020 GMC Sierra 1500 offers up to 15 MPG in city driving and 21 MPG on the highway for a combined rating of 17 MPG.

These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2020 GMC Sierra 1500?

The 2020 GMC Sierra 1500 compares to and/or competes against the following vehicles:


Is the 2020 GMC Sierra 1500 reliable?

The 2020 GMC Sierra 1500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 1500 owners.

Is the 2020 GMC Sierra 1500 a good truck?

Below are the Cars.com consumer ratings for the 2020 GMC Sierra 1500.

(69 reviews)
Rating breakdown (out of 5):
Comfort
4.9
Interior
4.8
Performance
4.8
Value
4.6
Exterior
4.9
Reliability
4.7
Ratings (69 reviews)

91% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.9
Interior
4.8
Performance
4.8
Value
4.6
Exterior
4.9
Reliability
4.7
Trims

AT4 (3 styles)

Style
4WD Double Cab 147" AT4 4WD Crew Cab 157" AT4 4WD Crew Cab 147" AT4
Inventory price
Starting at $51,300 Starting at $54,000 Starting at $53,700
Combined MPG
18 18 18
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

Base (8 styles)

Style
4WD Crew Cab 157" 2WD Double Cab 147" 2WD Crew Cab 147" 4WD Double Cab 147" 2WD Crew Cab 157" 4WD Crew Cab 147" 4WD Reg Cab 140" 2WD Reg Cab 140"
Inventory price
Starting at $39,500 Starting at $33,500 Starting at $35,900 Starting at $36,800 Starting at $36,200 Starting at $39,200 Starting at $34,200 Starting at $29,600
Combined MPG
20 20 20 20 20 20 17 17
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)

Denali (4 styles)

Style
2WD Crew Cab 157" Denali 4WD Crew Cab 147" Denali 4WD Crew Cab 157" Denali 2WD Crew Cab 147" Denali
Inventory price
Starting at $55,400 Starting at $58,600 Starting at $58,900 Starting at $55,100
Combined MPG
19 18 18 19
Engine
355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel)

Elevation (6 styles)

Style
4WD Crew Cab 157" Elevation 2WD Double Cab 147" Elevation 2WD Crew Cab 157" Elevation 2WD Crew Cab 147" Elevation 4WD Double Cab 147" Elevation 4WD Crew Cab 147" Elevation
Inventory price
Starting at $46,500 Starting at $40,500 Starting at $43,200 Starting at $42,900 Starting at $43,800 Starting at $46,200
Combined MPG
20 21 21 21 20 20
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLE (6 styles)

Style
2WD Crew Cab 157" SLE 2WD Double Cab 147" SLE 4WD Double Cab 147" SLE 2WD Crew Cab 147" SLE 4WD Crew Cab 157" SLE 4WD Crew Cab 147" SLE
Inventory price
Starting at $40,700 Starting at $38,000 Starting at $41,300 Starting at $40,400 Starting at $44,000 Starting at $43,700
Combined MPG
21 21 20 20 20 20
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLT (6 styles)

Style
4WD Crew Cab 147" SLT 2WD Crew Cab 147" SLT 4WD Crew Cab 157" SLT 4WD Double Cab 147" SLT 2WD Double Cab 147" SLT 2WD Crew Cab 157" SLT
Inventory price
Starting at $50,400 Starting at $46,900 Starting at $50,700 Starting at $48,000 Starting at $44,500 Starting at $47,200
Combined MPG
18 19 18 18 19 19
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel)
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