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  • Quicksilver Metallic 2020 GMC Sierra 1500 DENALIQuicksilver Metallic 2020 GMC Sierra 1500 DENALIQuicksilver Metallic 2020 GMC Sierra 1500 DENALIQuicksilver Metallic 2020 GMC Sierra 1500 DENALIQuicksilver Metallic 2020 GMC Sierra 1500 DENALIQuicksilver Metallic 2020 GMC Sierra 1500 DENALI

    $65,075

    $200
    24,592 mi.
    Est. $1,176/mo

    Bergey's Ford of Lansdale

    4.9
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    Lansdale, PA (14 mi)
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  • White Frost 2020 GMC Sierra 1500 DenaliWhite Frost 2020 GMC Sierra 1500 DenaliWhite Frost 2020 GMC Sierra 1500 DenaliWhite Frost 2020 GMC Sierra 1500 DenaliWhite Frost 2020 GMC Sierra 1500 DenaliWhite Frost 2020 GMC Sierra 1500 Denali

    $36,485

    99,305 mi.
    Est. $659/mo

    Star GMC of Quakertown

    4.2
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    Quakertown, PA (13 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

    $40,885

    51,955 mi.
    Est. $739/mo

    Bergey's Buick GMC

    4.6
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    Souderton, PA (9 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

    $41,485

    49,748 mi.
    Est. $750/mo

    Star GMC of Quakertown

    4.2
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    Quakertown, PA (13 mi)
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  • Satin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 DenaliSatin Steel Metallic 2020 GMC Sierra 1500 Denali

    $26,480

    $3.7K
    151,933 mi.
    Est. $479/mo

    Kelly Buick GMC

    4.5
    Check Availability
    Emmaus, PA (16 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

    $36,348

    73,959 mi.
    Est. $657/mo

    Star GMC of Easton

    4.5
    Check Availability
    Easton, PA (29 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

    $33,468

    36,625 mi.
    Est. $605/mo

    Weathers Motors

    Check Availability
    Media, PA (29 mi)
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  • Not Priced

    73,993 mi.

    Patriot Buick GMC

    4.7
    Check Availability
    Boyertown, PA (6 mi)
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  • Onyx Black 2020 GMC Sierra 1500 Denali

    $35,735

    114,183 mi.
    Est. $646/mo

    Videon Chevrolet of Phoenixville

    4.7
    Check Availability
    Phoenixville, PA (14 mi)
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  • Not Priced

    76,565 mi.
    Est. $0/mo

    North Penn Volkswagen

    4.8
    Check Availability
    Colmar, PA (15 mi)
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  • Dark Sky Metallic 2020 GMC Sierra 1500 SLE

    $33,480

    65,339 mi.
    Est. $605/mo

    O'Neil Nissan

    4.9
    Check Availability
    Warminster, PA (23 mi)
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  • Brown 2020 GMC Sierra 1500 DenaliBrown 2020 GMC Sierra 1500 DenaliBrown 2020 GMC Sierra 1500 DenaliBrown 2020 GMC Sierra 1500 DenaliBrown 2020 GMC Sierra 1500 DenaliBrown 2020 GMC Sierra 1500 Denali

    $42,998

    55,629 mi.
    Est. $777/mo

    CarMax Easton

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    Free delivery to King of Prussia, PA (18 mi)
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  • Black 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 Elevation

    $37,998

    54,279 mi.
    Est. $687/mo

    CarMax Turnersville

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    Free delivery to King of Prussia, PA (18 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

    $45,678

    39,073 mi.
    Est. $825/mo

    F.C. Kerbeck & Sons

    4.4
    Check Availability
    Palmyra, NJ (34 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

    $41,000

    35,971 mi.
    Est. $741/mo

    Burlington Chrysler Dodge Jeep RAM

    3.5
    Check Availability
    Burlington, NJ (38 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

    $38,996

    71,845 mi.
    Est. $705/mo

    Chapman Ford Lancaster

    4.9
    Check Availability
    Lancaster, PA (47 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

    $40,138

    $540
    78,966 mi.
    Est. $725/mo

    F.C. Kerbeck & Sons

    4.4
    Check Availability
    Palmyra, NJ (34 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

    $35,353

    $433
    82,487 mi.
    Est. $639/mo

    Elite Acura

    4.9
    Check Availability
    Maple Shade, NJ (39 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

    $41,794

    53,543 mi.
    Est. $755/mo

    Automotive Avenues Sewell

    4.9
    Check Availability
    Washington Township, NJ (45 mi)
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  • Black 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 ElevationBlack 2020 GMC Sierra 1500 Elevation

    $28,988

    112,724 mi.
    Est. $524/mo

    Union Park Honda BMW Buick GMC Volvo Car

    2.4
    Check Availability
    Wilmington, DE (40 mi)
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  • Carbon Black Metallic 2020 GMC Sierra 1500 ElevationCarbon Black Metallic 2020 GMC Sierra 1500 ElevationCarbon Black Metallic 2020 GMC Sierra 1500 ElevationCarbon Black Metallic 2020 GMC Sierra 1500 ElevationCarbon Black Metallic 2020 GMC Sierra 1500 ElevationCarbon Black Metallic 2020 GMC Sierra 1500 Elevation

    $28,988

    86,193 mi.
    Est. $524/mo

    Discount Auto

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    Langhorne, PA (36 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

    $38,425

    43,537 mi.
    Est. $694/mo

    Frederick Chevrolet

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    Lebanon, PA (48 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

    $36,998

    57,366 mi.
    Est. $669/mo

    CarMax Newark

    1.9
    Check Availability
    Newark, DE (46 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

    $33,987

    45,433 mi.
    Est. $614/mo

    Auto Connection of Lancaster

    Check Availability
    Lancaster, PA (49 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

    $38,550

    $2.3K
    53,610 mi.
    Est. $697/mo

    Abeloff Nissan

    3.4
    Check Availability
    Bartonsville, PA (50 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $62,861 1 Good deal
2025 GMC Sierra 1500 $57,403 5 Great deals
2024 GMC Sierra 1500 $44,380 18 Good deals
2023 GMC Sierra 1500 $48,335 9 Great deals
2019 GMC Sierra 1500 $28,659 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 $34,213, with pricing starting at $14,980.

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.

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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