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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

    $33,293

    $2.6K
    95,111 mi.
    Est. $584/mo

    Al Piemonte Buick GMC

    4.5
    Elmhurst, IL (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

    $34,840

    $285
    103,943 mi.
    Est. $612/mo

    Arnie Bauer Buick GMC of Matteson

    4.4
    Matteson, IL (20 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLTDark Sky Metallic 2020 GMC Sierra 1500 SLT

    $38,376

    68,860 mi.
    Est. $674/mo

    Your Choice Auto Sales of Elgin

    4.8
    Elgin, IL (29 mi)
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  • Summit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLT

    $34,980

    70,930 mi.
    Est. $614/mo

    Mike Haggerty Buick GMC

    3.9
    Oak Lawn, IL (6 mi)
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  • Onyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLEOnyx Black 2020 GMC Sierra 1500 SLE

    $25,988

    119,716 mi.
    Est. $456/mo

    iDrive Motor Sports Inc.

    3.7
    Berwyn, IL (4 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

    $27,854

    141,134 mi.
    Est. $489/mo

    Your Choice Auto Sales of Joliet

    4.7
    Joliet, IL (24 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLEDark Sky Metallic 2020 GMC Sierra 1500 SLE

    $30,277

    89,205 mi.
    Est. $531/mo

    Bredemann Toyota/Scion

    4.8
    Park Ridge, IL (18 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 Elevation

    $22,995

    158,864 mi.
    Est. $404/mo

    High Quality Auto Sales - Archer Ave

    Chicago, IL (7 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

    $30,296

    99,947 mi.
    Est. $532/mo

    Best Car Finance

    Frankfort, IL (19 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

    $42,407

    38,014 mi.
    Est. $744/mo

    Haggerty Buick GMC Inc

    4.9
    Villa Park, IL (11 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. $474/mo

    Windy City Motors

    Chicago, IL (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

    $27,990

    $1K
    139,027 mi.
    Est. $491/mo

    Auto Gallery Chicago

    1.9
    Addison, IL (13 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

    $34,899

    $236
    51,319 mi.
    Est. $613/mo

    KNB Motors Inc

    Northlake, 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

    $38,500

    96,332 mi.
    Est. $676/mo

    Mike Haggerty Buick GMC

    3.9
    Oak Lawn, IL (6 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

    $36,246

    $700
    75,964 mi.
    Est. $636/mo

    Triple M Motors

    St John, IN (30 mi)
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  • $37,373

    72,900 mi.
    Est. $656/mo

    D'Arcy Buick GMC

    4.4
    Joliet, IL (24 mi)
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  • Gray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 DenaliGray 2020 GMC Sierra 1500 Denali

    $41,998

    54,451 mi.
    Est. $737/mo

    CarMax Rivergate

    4.7
    $199 delivery to Oak Lawn, IL (5 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

    $35,412

    $500
    65,693 mi.
    Est. $622/mo

    Woody Buick GMC of Gurnee

    5.0
    $299 delivery from Gurnee, IL (42 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

    $38,074

    $300
    58,273 mi.
    Est. $668/mo

    Crosswell Ford

    4.9
    Manteno, IL (37 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 ElevationDark Sky Metallic 2020 GMC Sierra 1500 Elevation

    $35,002

    $150
    64,000 mi.
    Est. $614/mo

    Currie Motors Buick GMC

    4.9
    Valparaiso, IN (45 mi)
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  • Summit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLTSummit White 2020 GMC Sierra 1500 SLT

    $27,544

    $1.3K
    120,388 mi.
    Est. $484/mo

    Greenway Autos

    Morris, IL (42 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

    $24,000

    $1.1K
    137,954 mi.
    Est. $421/mo

    Art Hill Ford

    4.1
    Merrillville, IN (33 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

    $34,192

    $1K
    64,343 mi.
    Est. $600/mo

    Team Honda

    4.6
    Merrillville, IN (36 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

    $39,990

    70,640 mi.
    Est. $702/mo

    Ultimate Rides

    Braidwood, IL (42 mi)
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  • Not Priced

    46,393 mi.

    Wickstrom Auto Group

    5.0
    Barrington, IL (32 mi)
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  • Not Priced

    146,681 mi.
    Est. $0/mo

    Graff Chevrolet GMC of Michigan City

    4.4
    Michigan City, IN (49 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $65,408 5 Great deals
2025 GMC Sierra 1500 $54,649 6 Great deals
2024 GMC Sierra 1500 $48,415 8 Great deals
2023 GMC Sierra 1500 $47,953 14 Great deals
2022 GMC Sierra 1500 $43,000 10 Great deals
2021 GMC Sierra 1500 $37,573 5 Great deals
2019 GMC Sierra 1500 $29,530 6 Great deals
2018 GMC Sierra 1500 $24,976 3 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 $34,256, with pricing starting at $13,979.

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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