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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

    $36,875

    $1.5K
    96,234 mi.
    Est. $647/mo

    Voyles CDJR of Birmingham

    3.7
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    Birmingham, AL (27 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

    $34,800

    105,697 mi.
    Est. $611/mo

    Cullman Auto Mall

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    Cullman, AL (23 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

    $39,000

    111,061 mi.
    Est. $685/mo

    Heath Attaway Auto Sales

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    Cullman, AL (24 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

    $49,995

    40,842 mi.
    Est. $878/mo

    Billy Ray Taylor Auto Sales

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    Cullman, AL (26 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

    $40,995

    106,537 mi.
    Est. $720/mo

    Billy Ray Taylor Auto Sales

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    Cullman, AL (26 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLT

    $34,000

    86,350 mi.
    Est. $597/mo

    Courtesy GMC

    4.6
    Check Availability
    Birmingham, AL (21 mi)
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  • $31,989

    86,630 mi.
    Est. $562/mo

    Tony Serra Nissan Cullman

    4.4
    Check Availability
    Cullman, AL (22 mi)
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  • $33,897

    94,330 mi.
    Est. $595/mo

    Bill Smith Buick GMC

    4.7
    Check Availability
    Cullman, AL (26 mi)
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  • $31,500

    $1K
    111,077 mi.
    Est. $553/mo

    Bill Smith Buick GMC

    4.7
    Check Availability
    Cullman, AL (26 mi)
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  • $32,897

    134,994 mi.
    Est. $577/mo

    Bill Smith Buick GMC

    4.7
    Check Availability
    Cullman, AL (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

    $35,372

    98,843 mi.
    Est. $621/mo

    Laura Buick GMC

    4.5
    Check Availability
    $762 delivery from Collinsville, IL (382 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. $553/mo

    Unlimited Motors

    4.7
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    $662 delivery from Elwood, IN (442 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

    $43,023

    43,383 mi.
    Est. $755/mo

    Town & Country Ford

    4.7
    Check Availability
    Bessemer, AL (43 mi)
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  • Quicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLEQuicksilver Metallic 2020 GMC Sierra 1500 SLE

    $32,000

    $250
    62,661 mi.
    Est. $562/mo

    Driver's Way Birmingham

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    Birmingham, AL (34 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

    $34,999

    114,233 mi.
    Est. $614/mo

    Susan Schein Automotive

    3.9
    Check Availability
    Pelham, AL (44 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

    $43,999

    66,486 mi.
    Est. $772/mo

    CRM Motors Pelham

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    Pelham, AL (42 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

    $29,900

    107,194 mi.
    Est. $525/mo

    Lowery Brothers Motors

    4.7
    Check Availability
    Boaz, AL (35 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

    $34,995

    109,571 mi.
    Est. $614/mo

    H&R Motors

    Check Availability
    Rainbow City, AL (34 mi)
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  • $43,154

    44,030 mi.
    Est. $758/mo

    Driver's Way Birmingham

    Check Availability
    Birmingham, AL (34 mi)
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  • Not Priced

    114,975 mi.
    Est. $0/mo

    Susan Schein Automotive

    3.9
    Check Availability
    Pelham, AL (44 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $60,059
2025 GMC Sierra 1500 $58,695 5 Good deals
2024 GMC Sierra 1500 $52,325 3 Good deals
2023 GMC Sierra 1500 $45,586 2 Good deals
2022 GMC Sierra 1500 $43,700 1 Good deal
2021 GMC Sierra 1500 $40,226 1 Good deal

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 $34,118, 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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