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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

    $39,880

    47,083 mi.
    Est. $739/mo

    Al Piemonte Chevrolet

    3.6
    Check Availability
    East Dundee, IL (17 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

    $38,599

    72,770 mi.
    Est. $716/mo

    Bill Kay Chevrolet

    4.6
    Check Availability
    Lisle, IL (10 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

    $33,864

    106,329 mi.
    Est. $628/mo

    Castle Chevrolet GMC

    4.3
    Check Availability
    McHenry, IL (30 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

    $34,499

    87,671 mi.
    Est. $640/mo

    Star Motor Sales

    4.7
    Check Availability
    Downers Grove, IL (9 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

    $36,891

    73,540 mi.
    Est. $684/mo

    FOX VALLEY VOLKSWAGEN CRYSTAL LAKE

    4.7
    Check Availability
    Crystal Lake, IL (26 mi)
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  • White Frost Tri-Coat 2020 GMC Sierra 1500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 1500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 1500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 1500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 1500 DenaliWhite Frost Tri-Coat 2020 GMC Sierra 1500 Denali

    $27,499

    $496
    189,569 mi.
    Est. $510/mo

    Napleton Buick GMC

    4.7
    Check Availability
    Crystal Lake, IL (26 mi)
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  • Pacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 ElevationPacific Blue Metallic 2020 GMC Sierra 1500 Elevation

    $39,995

    79,881 mi.
    Est. $742/mo

    High Quality Auto Sales - Archer Ave

    Check Availability
    Chicago, IL (18 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 SLT

    $30,577

    120,015 mi.
    Est. $567/mo

    Bill Kay Downers Grove Nissan

    4.6
    Check Availability
    Downers Grove, IL (9 mi)

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  • Black 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLTBlack 2020 GMC Sierra 1500 SLT

    $26,995

    157,922 mi.
    Est. $501/mo

    Windy City Motors

    Check Availability
    Chicago, IL (14 mi)
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  • Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4

    $30,000

    167,703 mi.
    Est. $556/mo

    Private seller: Luis

    Contact Seller
    Harvey, IL (29 mi)
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  • Onyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 ElevationOnyx Black 2020 GMC Sierra 1500 Elevation

    $28,699

    70,607 mi.
    Est. $532/mo

    Glendale Nissan

    4.5
    Check Availability
    Glendale Heights, IL (4 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

    $34,995

    119,587 mi.
    Est. $649/mo

    High Quality Auto Sales - Archer Ave

    Check Availability
    Chicago, IL (18 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

    $26,800

    139,177 mi.
    Est. $497/mo

    Bill Kay Buick GMC

    4.4
    Check Availability
    Downers Grove, IL (9 mi)
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  • Cardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLE

    $29,999

    53,206 mi.
    Est. $556/mo

    Oakbrook Toyota in Westmont

    4.4
    Check Availability
    Westmont, IL (9 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

    $42,775

    38,014 mi.
    Est. $793/mo

    Haggerty Buick GMC Inc

    5.0
    Check Availability
    Villa Park, IL (5 mi)
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  • Smokey Quartz Metallic 2020 GMC Sierra 1500 DenaliSmokey Quartz Metallic 2020 GMC Sierra 1500 DenaliSmokey Quartz Metallic 2020 GMC Sierra 1500 DenaliSmokey Quartz Metallic 2020 GMC Sierra 1500 DenaliSmokey Quartz Metallic 2020 GMC Sierra 1500 DenaliSmokey Quartz Metallic 2020 GMC Sierra 1500 Denali

    $39,995

    $182
    48,994 mi.
    Est. $742/mo

    Castle Buick GMC

    3.8
    Check Availability
    North Riverside, IL (12 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

    $34,495

    75,306 mi.
    Est. $640/mo

    Adam Auto Group

    3.1
    Check Availability
    Crestwood, IL (25 mi)
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  • Not Priced

    108,308 mi.

    Blue Sky Auto Sales - Crestwood

    Check Availability
    Crestwood, IL (25 mi)
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  • White Frost 2020 GMC Sierra 1500 SLTWhite Frost 2020 GMC Sierra 1500 SLTWhite Frost 2020 GMC Sierra 1500 SLTWhite Frost 2020 GMC Sierra 1500 SLTWhite Frost 2020 GMC Sierra 1500 SLTWhite Frost 2020 GMC Sierra 1500 SLT

    $33,995

    79,453 mi.
    Est. $630/mo

    Unlimited Motors in Noblesville

    4.2
    Check Availability
    $248 delivery from Noblesville, IN (166 mi)
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  • Blue 2020 GMC Sierra 1500 SLEBlue 2020 GMC Sierra 1500 SLEBlue 2020 GMC Sierra 1500 SLEBlue 2020 GMC Sierra 1500 SLEBlue 2020 GMC Sierra 1500 SLEBlue 2020 GMC Sierra 1500 SLE

    $33,998

    52,156 mi.
    Est. $630/mo

    CarMax Capital Boulevard

    Check Availability
    $399 delivery to Hillside, IL (8 mi)
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  • Cardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLECardinal Red 2020 GMC Sierra 1500 SLE

    $28,995

    88,429 mi.
    Est. $538/mo

    Schepel Buick-GMC

    4.9
    Check Availability
    Merrillville, IN (46 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

    $28,581

    58,479 mi.
    Est. $530/mo

    South Oak Jeep Dodge Ram Chrysler

    4.9
    Check Availability
    Matteson, IL (33 mi)
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  • Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4Black 2020 GMC Sierra 1500 AT4

    $36,599

    $400
    68,515 mi.
    Est. $679/mo

    CarWise Gurnee

    4.4
    Check Availability
    Gurnee, IL (32 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

    $31,362

    $317
    111,722 mi.
    Est. $581/mo

    Palmen Buick, GMC, Cadillac

    4.6
    Check Availability
    Kenosha, WI (45 mi)
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  • Burgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 DenaliBurgundy 2020 GMC Sierra 1500 Denali

    $39,995

    75,964 mi.
    Est. $742/mo

    Triple M Motors

    Check Availability
    St John, IN (44 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $60,532 3 Good deals
2025 GMC Sierra 1500 $52,450 11 Great deals
2024 GMC Sierra 1500 $50,367 6 Great deals
2023 GMC Sierra 1500 $46,388 37 Good deals
2022 GMC Sierra 1500 $43,685 28 Good deals
2021 GMC Sierra 1500 $37,296 6 Great deals
2019 GMC Sierra 1500 $29,491 12 Good deals
2018 GMC Sierra 1500 $24,442 13 Good deals
2017 GMC Sierra 1500 $23,242 10 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 $34,047, 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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