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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

    $30,995

    80,311 mi.
    Est. $569/mo

    Pacific Auto Center - Fontana

    3.7
    Check Availability
    Fontana, CA (28 mi)
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  • Red Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLERed Quartz Tintcoat 2020 GMC Sierra 1500 SLE

    $26,786

    $536
    78,362 mi.
    Est. $492/mo

    Penske Buick GMC of Cerritos

    4.4
    Check Availability
    Cerritos, CA (14 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

    $28,995

    75,423 mi.
    Est. $533/mo

    Pacific Auto Center - Costa Mesa

    3.6
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    Costa Mesa, CA (19 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

    $27,995

    83,833 mi.
    Est. $514/mo

    Pacific Auto Center - Fontana

    3.7
    Check Availability
    Fontana, CA (28 mi)
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  • Burgundy 2020 GMC Sierra 1500 AT4Burgundy 2020 GMC Sierra 1500 AT4Burgundy 2020 GMC Sierra 1500 AT4Burgundy 2020 GMC Sierra 1500 AT4Burgundy 2020 GMC Sierra 1500 AT4Burgundy 2020 GMC Sierra 1500 AT4

    $33,995

    91,505 mi.
    Est. $625/mo

    Pacific Auto Center - Fontana

    3.7
    Check Availability
    Fontana, CA (28 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

    $32,995

    58,563 mi.
    Est. $606/mo

    Pacific Auto Center - Fontana

    3.7
    Check Availability
    Fontana, CA (28 mi)
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  • Red Mahogany Metallic 2020 GMC Sierra 1500 SLERed Mahogany Metallic 2020 GMC Sierra 1500 SLERed Mahogany Metallic 2020 GMC Sierra 1500 SLERed Mahogany Metallic 2020 GMC Sierra 1500 SLERed Mahogany Metallic 2020 GMC Sierra 1500 SLERed Mahogany Metallic 2020 GMC Sierra 1500 SLE

    $20,795

    125,126 mi.
    Est. $382/mo

    Premium Autos

    1.1
    Check Availability
    Norco, CA (19 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 Elevation

    $26,995

    125,007 mi.
    Est. $496/mo

    Pacific Auto Center - Fontana

    3.7
    Check Availability
    Fontana, CA (28 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

    $33,995

    101,206 mi.
    Est. $625/mo

    Pacific Auto Center - Fontana

    3.7
    Check Availability
    Fontana, CA (28 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

    $27,992

    $999
    119,287 mi.
    Est. $514/mo

    Scottsdale Mitsubishi

    3.9
    Check Availability
    $692 delivery from Scottsdale, AZ (346 mi)
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  • Blue 2020 GMC Sierra 1500 SLTBlue 2020 GMC Sierra 1500 SLTBlue 2020 GMC Sierra 1500 SLTBlue 2020 GMC Sierra 1500 SLTBlue 2020 GMC Sierra 1500 SLTBlue 2020 GMC Sierra 1500 SLT

    $34,998

    87,100 mi.
    Est. $643/mo

    CarMax Phoenix-West Valley

    4.5
    Check Availability
    $99 delivery to Buena Park, CA (8 mi)
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  • White 2020 GMC Sierra 1500 DenaliWhite 2020 GMC Sierra 1500 DenaliWhite 2020 GMC Sierra 1500 DenaliWhite 2020 GMC Sierra 1500 DenaliWhite 2020 GMC Sierra 1500 DenaliWhite 2020 GMC Sierra 1500 Denali

    $43,998

    32,562 mi.
    Est. $808/mo

    CarMax Murrieta

    Check Availability
    Murrieta, CA (48 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4Dark Sky Metallic 2020 GMC Sierra 1500 AT4

    $37,988

    75,650 mi.
    Est. $698/mo

    Diamond Chevrolet of San Bernardino

    4.1
    Check Availability
    San Bernardino, CA (37 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 ElevationQuicksilver Metallic 2020 GMC Sierra 1500 Elevation

    $27,500

    $500
    91,094 mi.
    Est. $505/mo

    Wholesale Investments Inc - Canoga Park

    Check Availability
    Canoga Park, CA (45 mi)
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  • $36,980

    51,130 mi.
    Est. $679/mo

    Van Nuys Kia

    2.6
    Check Availability
    Van Nuys, CA (37 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $56,715 7 Good deals
2025 GMC Sierra 1500 $46,175 13 Great deals
2024 GMC Sierra 1500 $50,113 7 Great deals
2023 GMC Sierra 1500 $44,432 17 Good deals
2022 GMC Sierra 1500 $41,363 20 Good deals
2021 GMC Sierra 1500 $34,419 6 Great deals
2019 GMC Sierra 1500 $30,505 7 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 $34,074, with pricing starting at $14,995.

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

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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