Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • 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

    $38,941

    73,575 mi.
    Est. $725/mo

    Right Toyota

    3.7
    Check Availability
    Scottsdale, AZ (12 mi)

    Quick view
  • 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

    $38,941

    73,575 mi.
    Est. $725/mo

    Right Toyota

    3.7
    Check Availability
    Scottsdale, AZ (12 mi)

    Quick view
  • 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

    $33,300

    48,389 mi.
    Est. $620/mo

    Courtesy Chevrolet

    4.5
    Check Availability
    Phoenix, AZ (21 mi)
    Quick view
  • 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

    $37,996

    92,820 mi.
    Est. $707/mo

    Mark Mazda

    4.6
    Check Availability
    Scottsdale, AZ (13 mi)
    Quick view
  • 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

    $33,500

    $600
    108,655 mi.
    Est. $624/mo

    Silo Auto Sales

    Check Availability
    Gilbert, AZ (22 mi)
    Quick view
  • Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4

    $42,995

    $905
    49,406 mi.
    Est. $800/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (14 mi)
    Quick view
  • 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

    $37,988

    36,135 mi.
    Est. $707/mo

    Scottsdale Mitsubishi

    3.9
    Check Availability
    Scottsdale, AZ (13 mi)
    Quick view
  • 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

    $44,995

    48,277 mi.
    Est. $838/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (14 mi)
    Quick view
  • 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

    $43,991

    67,914 mi.
    Est. $819/mo

    Scottsdale Mitsubishi

    3.9
    Check Availability
    Scottsdale, AZ (13 mi)
    Quick view
  • 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

    $44,491

    70,343 mi.
    Est. $828/mo

    Scottsdale Mitsubishi

    3.9
    Check Availability
    Scottsdale, AZ (13 mi)
    Quick view
  • 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

    $35,899

    $1.2K
    45,168 mi.
    Est. $668/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (22 mi)
    Quick view
  • 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

    $32,995

    84,307 mi.
    Est. $614/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (14 mi)
    Quick view
  • Onyx Black 2021 GMC Sierra 1500 SLTOnyx Black 2021 GMC Sierra 1500 SLTOnyx Black 2021 GMC Sierra 1500 SLTOnyx Black 2021 GMC Sierra 1500 SLTOnyx Black 2021 GMC Sierra 1500 SLTOnyx Black 2021 GMC Sierra 1500 SLT

    $35,777

    74,065 mi.
    Est. $666/mo

    Sullivan Motor Company Inc.

    3.4
    Check Availability
    Mesa, AZ (16 mi)
    Quick view
  • 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

    $47,973

    51,245 mi.
    Est. $893/mo

    Bill Luke Santan

    4.3
    Check Availability
    Gilbert, AZ (22 mi)
    Quick view
  • 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

    $30,190

    86,489 mi.
    Est. $562/mo

    STG Auto Group Of Chandler

    2.7
    Check Availability
    Chandler, AZ (19 mi)
    Quick view
  • 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

    $34,995

    88,646 mi.
    Est. $652/mo

    Munich Motors

    Check Availability
    Phoenix, AZ (22 mi)
    Quick view
  • 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

    $39,995

    62,953 mi.
    Est. $745/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (14 mi)
    Quick view
  • 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

    $34,900

    93,558 mi.
    Est. $650/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (14 mi)
    Quick view
  • Pacific Blue Metallic 2021 GMC Sierra 1500 Denali UltimatePacific Blue Metallic 2021 GMC Sierra 1500 Denali UltimatePacific Blue Metallic 2021 GMC Sierra 1500 Denali UltimatePacific Blue Metallic 2021 GMC Sierra 1500 Denali UltimatePacific Blue Metallic 2021 GMC Sierra 1500 Denali UltimatePacific Blue Metallic 2021 GMC Sierra 1500 Denali Ultimate

    $36,500

    96,502 mi.
    Est. $680/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (14 mi)
    Quick view
  • 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

    $30,811

    119,754 mi.
    Est. $574/mo

    Cars Land

    Check Availability
    Tempe, AZ (16 mi)
    Quick view
  • Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4

    $31,999

    41,226 mi.
    Est. $596/mo

    Caspian Auto Group

    Check Availability
    Mesa, AZ (16 mi)
    Quick view
  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 SLTCayenne Red Tintcoat 2021 GMC Sierra 1500 SLTCayenne Red Tintcoat 2021 GMC Sierra 1500 SLTCayenne Red Tintcoat 2021 GMC Sierra 1500 SLTCayenne Red Tintcoat 2021 GMC Sierra 1500 SLTCayenne Red Tintcoat 2021 GMC Sierra 1500 SLT

    $34,995

    58,224 mi.
    Est. $652/mo

    Rollit Motors

    4.5
    Check Availability
    Mesa, AZ (14 mi)
    Quick view
  • Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4

    $32,400

    49,492 mi.
    Est. $603/mo

    Caspian Auto Group

    Check Availability
    Mesa, AZ (16 mi)
    Quick view
  • Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4

    $38,998

    $1K
    69,653 mi.
    Est. $726/mo

    CarMax Phoenix-West Valley

    4.5
    Check Availability
    Free delivery to Scottsdale, AZ (11 mi)
    Quick view
  • Satin Steel Metallic 2021 GMC Sierra 1500 SLTSatin Steel Metallic 2021 GMC Sierra 1500 SLTSatin Steel Metallic 2021 GMC Sierra 1500 SLTSatin Steel Metallic 2021 GMC Sierra 1500 SLTSatin Steel Metallic 2021 GMC Sierra 1500 SLTSatin Steel Metallic 2021 GMC Sierra 1500 SLT

    $46,990

    48,567 mi.
    Est. $875/mo

    Earth MotorCars / Lotus of Dallas

    4.7
    Check Availability
    $1,289 delivery from Carrollton, TX (860 mi)
    Quick view

GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $60,649 7 Great deals
2025 GMC Sierra 1500 $54,020 13 Great deals
2024 GMC Sierra 1500 $52,064 8 Great deals
2023 GMC Sierra 1500 $47,335 5 Great deals
2022 GMC Sierra 1500 $44,194 15 Good deals
2020 GMC Sierra 1500 $36,460 7 Good deals
2019 GMC Sierra 1500 $29,822 9 Good deals
2018 GMC Sierra 1500 $28,745 5 Great 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 $36,232, with pricing starting at $16,000.

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)
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

Similar Cars

Research the 2021 GMC Sierra 1500

Compare the 2021 GMC Sierra 1500

2021 GMC Sierra 1500 by city

2021 GMC Sierra 1500 by cab style