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  • White Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLTWhite Frost Tricoat 2020 GMC Sierra 1500 SLT

    $27,994

    $798
    107,746 mi.
    Est. $512/mo

    Joe Myers Ford

    4.7
    Check Availability
    Houston, TX (29 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

    $30,495

    91,566 mi.
    Est. $558/mo

    Shawn's Motor Credit

    Check Availability
    Houston, TX (27 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

    $32,005

    120,833 mi.
    Est. $585/mo

    Auto Boutique Texas

    3.9
    Check Availability
    Alvin, TX (17 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

    $37,999

    60,831 mi.
    Est. $695/mo

    America's Xtreme Auto

    4.2
    Check Availability
    Houston, TX (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

    $34,997

    69,763 mi.
    Est. $640/mo

    Group 1 Buick GMC South

    4.6
    Check Availability
    Houston, TX (14 mi)
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  • Onyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLT

    $30,467

    $1.5K
    102,555 mi.
    Est. $557/mo

    Group 1 Buick GMC South

    4.6
    Check Availability
    Houston, TX (14 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

    $31,055

    $1.8K
    106,427 mi.
    Est. $568/mo

    Group 1 Chevrolet Spring

    4.3
    Check Availability
    Houston, TX (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

    $30,987

    151,238 mi.
    Est. $567/mo

    Group 1 Buick GMC South

    4.6
    Check Availability
    Houston, TX (14 mi)
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  • Onyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLTOnyx Black 2020 GMC Sierra 1500 SLT

    $35,395

    135,428 mi.
    Est. $647/mo

    Mac Haik Dodge Chrysler Jeep RAM

    3.2
    Check Availability
    Houston, TX (21 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 2WD Crew Cab 147" ElevationSatin Steel Metallic 2020 GMC Sierra 1500 2WD Crew Cab 147" ElevationSatin Steel Metallic 2020 GMC Sierra 1500 2WD Crew Cab 147" ElevationSatin Steel Metallic 2020 GMC Sierra 1500 2WD Crew Cab 147" ElevationSatin Steel Metallic 2020 GMC Sierra 1500 2WD Crew Cab 147" ElevationSatin Steel Metallic 2020 GMC Sierra 1500 2WD Crew Cab 147" Elevation

    $18,850

    177,117 mi.
    Est. $345/mo

    SW Auto LLC

    Check Availability
    HOUSTON, TX (25 mi)
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  • $27,997

    126,822 mi.
    Est. $512/mo

    Group 1 Buick GMC South

    4.6
    Check Availability
    Houston, TX (14 mi)
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  • White Frost Tricoat 2020 GMC Sierra 1500 Denali

    $31,499

    $1.4K
    71,993 mi.
    Est. $576/mo

    Strawberry Road Auto Sales

    Check Availability
    Pasadena, TX (11 mi)
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  • Summit White 2020 GMC Sierra 1500 AT4

    $39,691

    46,392 mi.
    Est. $726/mo

    USA Direct Auto

    3.0
    Check Availability
    Houston, TX (17 mi)
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  • $38,819

    85,239 mi.
    Est. $710/mo

    Group 1 Chevrolet Spring

    4.3
    Check Availability
    Houston, TX (26 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. $622/mo

    CarMax Alliance

    4.4
    Check Availability
    $149 delivery to Houston, TX (14 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

    $32,500

    $400
    72,842 mi.
    Est. $594/mo

    Unlimited Motors

    4.5
    Check Availability
    $1,304 delivery from Westfield, IN (870 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

    $32,415

    54,958 mi.
    Est. $593/mo

    Group 1 Buick GMC North

    4.4
    Check Availability
    Houston, TX (31 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

    $31,488

    $511
    107,488 mi.
    Est. $576/mo

    Wiesner Hyundai

    4.8
    Check Availability
    Conroe, TX (43 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

    $29,991

    $2K
    112,469 mi.
    Est. $548/mo

    MINI of The Woodlands

    4.8
    Check Availability
    Conroe, TX (36 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

    $25,995

    126,800 mi.
    Est. $475/mo

    America's Auto Financial

    4.7
    Check Availability
    Houston, TX (34 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

    $40,999

    78,296 mi.
    Est. $750/mo

    Garden Auto Sales

    Check Availability
    Houston, TX (33 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

    $24,995

    105,246 mi.
    Est. $457/mo

    America's Auto Financial

    4.7
    Check Availability
    Houston, TX (34 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

    $31,686

    $1.3K
    68,818 mi.
    Est. $579/mo

    Tomball Ford

    1.6
    Check Availability
    Tomball, TX (33 mi)
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  • $28,938

    86,489 mi.
    Est. $529/mo

    Group 1 Buick GMC North

    4.4
    Check Availability
    Houston, TX (31 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $60,091 3 Good deals
2025 GMC Sierra 1500 $55,891 15 Great deals
2024 GMC Sierra 1500 $49,957 5 Great deals
2023 GMC Sierra 1500 $45,372 20 Good deals
2022 GMC Sierra 1500 $43,155 15 Good deals
2021 GMC Sierra 1500 $33,139 9 Great 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 $34,014, 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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