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  • Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4

    $39,191

    69,435 mi.
    Est. $711/mo

    Stafford Chrysler Dodge Jeep Ram

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    Stafford Springs, CT (21 mi)
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  • GRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLTGRAY 2021 GMC Sierra 1500 SLT

    $29,990

    108,641 mi.
    Est. $544/mo

    Lava Motors

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    Canton, CT (28 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 ElevationEbony Twilight Metallic 2021 GMC Sierra 1500 Elevation

    $33,705

    69,286 mi.
    Est. $611/mo

    Middletown Nissan

    3.8
    Check Availability
    Middletown, CT (16 mi)
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  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 ElevationCayenne Red Tintcoat 2021 GMC Sierra 1500 Elevation

    $33,479

    72,219 mi.
    Est. $607/mo

    Scranton GMC of Vernon

    4.4
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    Vernon, CT (13 mi)
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  • Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4

    $30,158

    107,721 mi.
    Est. $547/mo

    Monaco Ford

    4.7
    Check Availability
    Glastonbury, CT (10 mi)
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  • Summit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLTSummit White 2021 GMC Sierra 1500 SLT

    $33,990

    76,005 mi.
    Est. $616/mo

    European Motorcars

    4.0
    Check Availability
    Middletown, CT (16 mi)
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  • Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4Blue 2021 GMC Sierra 1500 AT4

    $35,774

    61,995 mi.
    Est. $649/mo

    Shoreline Chrysler Dodge Jeep Ram

    3.2
    Check Availability
    Old Saybrook, CT (27 mi)
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  • Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4

    $48,312

    $612
    92,981 mi.
    Est. $876/mo

    Gengras Ford

    2.3
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    Plainville, CT (23 mi)
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  • Dark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLE

    $29,999

    $1.4K
    36,508 mi.
    Est. $544/mo

    Blasius of Middletown

    3.2
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    Middletown, CT (17 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 1500 SLT

    $34,898

    79,620 mi.
    Est. $633/mo

    Stephen Toyota

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    Bristol, CT (26 mi)
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  • White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500

    $31,998

    $1K
    20,395 mi.
    Est. $580/mo

    CarMax Warwick

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    Free delivery to Hartford, CT (16 mi)
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  • Summit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 Elevation

    $32,463

    $500
    63,753 mi.
    Est. $589/mo

    Bob Johnson Used

    4.0
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    $422 delivery from Rochester, NY (282 mi)
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  • Summit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 ElevationSummit White 2021 GMC Sierra 1500 Elevation

    $27,500

    $500
    65,872 mi.
    Est. $499/mo

    Shaker's Chrysler Dodge Jeep Ram

    4.9
    Check Availability
    Watertown, CT (37 mi)
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  • White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500White 2021 GMC Sierra 1500

    $31,998

    $1K
    20,395 mi.
    Est. $580/mo

    CarMax Warwick

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    Cranston, RI (48 mi)
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  • Onyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 Elevation

    $33,994

    $439
    61,527 mi.
    Est. $616/mo

    Acura of Auburn

    4.8
    Check Availability
    Auburn, MA (46 mi)
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  • Dark Sky Metallic 2021 GMC Sierra 1500 DenaliDark Sky Metallic 2021 GMC Sierra 1500 DenaliDark Sky Metallic 2021 GMC Sierra 1500 DenaliDark Sky Metallic 2021 GMC Sierra 1500 DenaliDark Sky Metallic 2021 GMC Sierra 1500 DenaliDark Sky Metallic 2021 GMC Sierra 1500 Denali

    $39,000

    57,323 mi.
    Est. $707/mo

    Audi Warwick

    4.9
    Check Availability
    Warwick, RI (47 mi)
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  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 1500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 1500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 1500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 1500 DenaliCayenne Red Tintcoat 2021 GMC Sierra 1500 Denali

    $37,947

    57,173 mi.
    Est. $688/mo

    GMC of Watertown

    3.8
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    Watertown, CT (37 mi)
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  • Dark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLEDark Sky Metallic 2021 GMC Sierra 1500 SLE

    $24,994

    $561
    106,313 mi.
    Est. $453/mo

    Blasius Pre-Owned Auto

    3.8
    Check Availability
    Waterbury, CT (35 mi)
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  • Onyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 ElevationOnyx Black 2021 GMC Sierra 1500 Elevation

    $30,977

    72,863 mi.
    Est. $562/mo

    Lux Auto Plus

    4.7
    Check Availability
    Auburn, MA (46 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 1500 ElevationQuicksilver Metallic 2021 GMC Sierra 1500 ElevationQuicksilver Metallic 2021 GMC Sierra 1500 Elevation

    $33,995

    80,781 mi.
    Est. $616/mo

    J & M Automotive

    4.9
    Check Availability
    Naugatuck, CT (36 mi)
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  • White Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 DenaliWhite Frost 2021 GMC Sierra 1500 Denali

    $39,833

    59,121 mi.
    Est. $722/mo

    Loehmann-Blasius Chevrolet

    4.1
    Check Availability
    Waterbury, CT (33 mi)
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  • Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4

    $39,977

    66,504 mi.
    Est. $725/mo

    Lux Auto Plus

    4.7
    Check Availability
    Auburn, MA (46 mi)
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  • Satin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 DenaliSatin Steel Metallic 2021 GMC Sierra 1500 Denali

    $34,995

    105,390 mi.
    Est. $635/mo

    Highline Car Connection

    4.5
    Check Availability
    Waterbury, CT (36 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 Elevation

    $32,898

    62,051 mi.
    Est. $596/mo

    Loehmann-Blasius Chevrolet

    4.1
    Check Availability
    Waterbury, CT (33 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $59,757
2023 GMC Sierra 1500 $40,351 8 Good deals
2022 GMC Sierra 1500 $42,021 10 Good deals

About the 2021 GMC Sierra 1500

Basics

Base shown (base trim).

Seating
3
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
16
Transmission
6-Speed A/T
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
Side view of the 2021 GMC Sierra 1500
FAQs

How much does the 2021 GMC Sierra 1500 cost?

The 2021 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 2021 Sierra 1500 is $35,843, with pricing starting at $13,900.

What is the MPG of the 2021 GMC Sierra 1500?

The 2021 GMC Sierra 1500 offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 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 2021 GMC Sierra 1500?

The 2021 GMC Sierra 1500 compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 1500 reliable?

The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.

Is the 2021 GMC Sierra 1500 a good truck?

Below are the Cars.com consumer ratings for the 2021 GMC Sierra 1500.

(56 reviews)
Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
3.8
Value
3.6
Exterior
4.3
Reliability
3.5
Ratings (56 reviews)

60% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
3.8
Value
3.6
Exterior
4.3
Reliability
3.5
Trims

AT4 (2 styles)

Style
4WD Crew Cab 157" AT4 4WD Crew Cab 147" AT4
Inventory price
Starting at $55,900 Starting at $54,700
Combined MPG
16 17
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

Base (7 styles)

Style
4WD Double Cab 147" 2WD Double Cab 147" 2WD Crew Cab 147" 4WD Crew Cab 147" 4WD Crew Cab 157" 4WD Reg Cab 140" 2WD Reg Cab 140"
Inventory price
Starting at $37,300 Starting at $34,000 Starting at $36,400 Starting at $39,700 Starting at $40,000 Starting at $34,700 Starting at $30,100
Combined MPG
19 21 21 19 19 16 16
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) 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 (3 styles)

Style
2WD Crew Cab 147" Denali 4WD Crew Cab 147" Denali 4WD Crew Cab 157" Denali
Inventory price
Starting at $55,800 Starting at $59,300 Starting at $59,600
Combined MPG
17 18 18
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)

Elevation (7 styles)

Style
4WD Double Cab 147" Elevation w/3VL 4WD Crew Cab 147" Elevation w/3VL 4WD Crew Cab 157" Elevation 2WD Double Cab 147" Elevation 4WD Double Cab 147" Elevation w/3SB 4WD Crew Cab 147" Elevation w/3SB 2WD Crew Cab 147" Elevation
Inventory price
Starting at $44,600 Starting at $47,200 Starting at $49,300 Starting at $43,100 Starting at $46,400 Starting at $49,000 Starting at $45,700
Combined MPG
19 19 19 21 19 19 21
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) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLE (5 styles)

Style
4WD Crew Cab 147" SLE 4WD Crew Cab 157" SLE 2WD Double Cab 147" SLE 2WD Crew Cab 147" SLE 4WD Double Cab 147" SLE
Inventory price
Starting at $47,100 Starting at $47,400 Starting at $41,400 Starting at $43,800 Starting at $44,700
Combined MPG
19 19 21 21 19
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)

SLT (3 styles)

Style
4WD Crew Cab 147" SLT 2WD Crew Cab 147" SLT 4WD Crew Cab 157" SLT
Inventory price
Starting at $50,800 Starting at $47,500 Starting at $51,100
Combined MPG
18 17 18
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)
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