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  • Onyx Black (gba) 2019 GMC Sierra 1500 SLTOnyx Black (gba) 2019 GMC Sierra 1500 SLTOnyx Black (gba) 2019 GMC Sierra 1500 SLTOnyx Black (gba) 2019 GMC Sierra 1500 SLTOnyx Black (gba) 2019 GMC Sierra 1500 SLTOnyx Black (gba) 2019 GMC Sierra 1500 SLT

    $36,899

    $241
    25,978 mi.
    Est. $627/mo

    Meyer Motors

    4.5
    Check Availability
    Plymouth, WI (13 mi)

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  • Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4Onyx Black 2020 GMC Sierra 1500 AT4

    $36,635

    $366
    80,340 mi.
    Est. $622/mo

    Van Horn Chrysler Dodge Jeep Ram Fiat of Plymouth

    4.7
    Check Availability
    Plymouth, WI (13 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

    $33,387

    105,764 mi.
    Est. $567/mo

    Holiday Chevrolet Buick GMC Dealership

    4.8
    Check Availability
    Fond Du Lac, WI (29 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 Elevation

    $35,598

    39,915 mi.
    Est. $605/mo

    Lynch Buick GMC of West Bend

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    West Bend, WI (16 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLTQuicksilver Metallic 2020 GMC Sierra 1500 SLT

    $26,292

    $1.6K
    155,868 mi.
    Est. $447/mo

    Van Horn Chevrolet of Plymouth

    4.4
    Check Availability
    Plymouth, WI (13 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 Denali

    $39,096

    $201
    60,831 mi.
    Est. $664/mo

    Lynch Buick GMC of West Bend

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    West Bend, WI (16 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

    $34,387

    90,081 mi.
    Est. $584/mo

    Holiday Chevrolet Buick GMC Dealership

    4.8
    Check Availability
    Fond Du Lac, WI (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

    $38,896

    86,158 mi.
    Est. $661/mo

    Lenz Truck - Fond du Lac, WI

    4.5
    Check Availability
    Fond du Lac, WI (28 mi)

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  • Cardinal Red 2020 GMC Sierra 1500 SLTCardinal Red 2020 GMC Sierra 1500 SLTCardinal Red 2020 GMC Sierra 1500 SLTCardinal Red 2020 GMC Sierra 1500 SLTCardinal Red 2020 GMC Sierra 1500 SLTCardinal Red 2020 GMC Sierra 1500 SLT

    $28,996

    120,477 mi.
    Est. $493/mo

    Lynch Buick GMC of West Bend

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    West Bend, WI (16 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

    $34,250

    $1.3K
    70,192 mi.
    Est. $582/mo

    Meyer Motors

    4.5
    Check Availability
    Plymouth, WI (13 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLTSatin Steel Metallic 2020 GMC Sierra 1500 SLT

    $32,000

    $500
    66,765 mi.
    Est. $544/mo

    Van Horn Ford of Lomira

    4.8
    Check Availability
    Lomira, WI (23 mi)
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  • Onyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 DenaliOnyx Black 2020 GMC Sierra 1500 Denali

    $33,412

    $500
    95,905 mi.
    Est. $568/mo

    Woody Buick GMC Naperville

    4.9
    Check Availability
    $299 delivery from Naperville, IL (125 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

    $31,500

    $495
    92,815 mi.
    Est. $535/mo

    Unlimited Motors

    4.7
    Check Availability
    $382 delivery from Elwood, IN (255 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 Denali

    $41,246

    60,074 mi.
    Est. $701/mo

    Wilde Subaru

    4.8
    Check Availability
    Waukesha, WI (39 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

    $37,944

    78,470 mi.
    Est. $645/mo

    Uptown Ford Lincoln

    4.5
    Check Availability
    Milwaukee, WI (36 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 1500 DenaliRed Quartz Tintcoat 2020 GMC Sierra 1500 Denali

    $30,215

    $300
    138,321 mi.
    Est. $513/mo

    Lexus of Brookfield

    4.9
    Check Availability
    Brookfield, WI (38 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 DenaliPacific Blue Metallic 2020 GMC Sierra 1500 Denali

    $37,999

    $1K
    51,984 mi.
    Est. $646/mo

    Vande Hey Brantmeier Chrysler Dodge Jeep RAM

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    Chilton, WI (34 mi)
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  • BLACK 2020 GMC Sierra 1500 BaseBLACK 2020 GMC Sierra 1500 BaseBLACK 2020 GMC Sierra 1500 BaseBLACK 2020 GMC Sierra 1500 BaseBLACK 2020 GMC Sierra 1500 BaseBLACK 2020 GMC Sierra 1500 Base

    $30,481

    $500
    52,857 mi.
    Est. $518/mo

    Lake Chevrolet

    4.5
    Check Availability
    Milwaukee, WI (42 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4

    $36,218

    72,572 mi.
    Est. $615/mo

    Bergstrom GM of Oshkosh

    4.8
    Check Availability
    Oshkosh, WI (44 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 ElevationSatin Steel Metallic 2020 GMC Sierra 1500 Elevation

    $32,542

    98,970 mi.
    Est. $553/mo

    Boucher Buick GMC of Waukesha

    3.5
    Waukesha, WI (39 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $64,934 6 Good deals
2025 GMC Sierra 1500 $56,564 5 Great deals
2024 GMC Sierra 1500 $52,272 7 Great deals
2023 GMC Sierra 1500 $48,621 5 Great deals
2022 GMC Sierra 1500 $38,997 5 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 $34,177, with pricing starting at $350.

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:


  • GMC Sierra 2500
  • GMC Sierra 1500 Limited
  • GMC Sierra 1500 Hybrid
  • GMC Savana 1500
  • Chevrolet Silverado 1500

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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