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  • Onyx Black 2021 GMC Sierra 1500 AT4

    $32,991

    112,033 mi.
    Est. $609/mo

    Demontrond Buick GMC

    4.7
    Houston, TX (25 mi)
    Check Availability

  • White Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLTWhite Frost Tri-Coat 2021 GMC Sierra 1500 SLT

    $28,215

    $727
    104,183 mi.
    Est. $521/mo

    Doggett Ford North

    4.2
    Houston, TX (23 mi)
    Check Availability

  • 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

    $37,213

    74,318 mi.
    Est. $687/mo

    Nexcar

    4.0
    Spring, TX (28 mi)
    Check Availability
  • 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

    $30,300

    $400
    59,375 mi.
    Est. $559/mo

    AutoSavvy Southwest Houston

    4.6
    Houston, TX (30 mi)
    Check Availability
  • 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

    $31,970

    108,521 mi.
    Est. $590/mo

    Helfman Dodge Chrysler Jeep Ram FIAT Alfa Romeo Maserati

    4.9
    Houston, TX (26 mi)
    Check Availability
  • 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

    $28,998

    38,587 mi.
    Est. $535/mo

    CarMax North Houston

    4.6
    Houston, TX (26 mi)
    Check Availability
  • Satin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 Elevation

    $24,686

    105,000 mi.
    Est. $456/mo

    Planet Lincoln

    4.3
    Spring, TX (28 mi)
    Check Availability
  • Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4

    $26,983

    $400
    157,588 mi.
    Est. $498/mo

    TX Auto Group Houston

    4.0
    Houston, TX (27 mi)
    Check Availability
  • 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

    $26,795

    $1.2K
    81,685 mi.
    Est. $495/mo

    National Auto Group

    Houston, TX (24 mi)
    Check Availability
  • Summit White 2021 GMC Sierra 1500 BaseSummit White 2021 GMC Sierra 1500 BaseSummit White 2021 GMC Sierra 1500 BaseSummit White 2021 GMC Sierra 1500 BaseSummit White 2021 GMC Sierra 1500 BaseSummit White 2021 GMC Sierra 1500 Base

    $19,716

    111,466 mi.
    Est. $364/mo

    Group 1 Chevrolet Spring

    4.4
    Houston, TX (27 mi)
    Check Availability
  • 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

    $34,216

    $2K
    110,609 mi.
    Est. $631/mo

    Gay Family Auto

    4.8
    Dickinson, TX (26 mi)
    Check Availability
  • 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

    $36,636

    $134
    82,749 mi.
    Est. $676/mo

    Ron Carter Chevrolet

    4.4
    Alvin, TX (29 mi)
    Check Availability
  • 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

    $26,615

    160,438 mi.
    Est. $491/mo

    Shawn's Motor Credit

    Houston, TX (30 mi)
    Check Availability
  • 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

    $39,224

    85,426 mi.
    Est. $724/mo

    Unique Auto Group

    3.8
    Houston, TX (30 mi)
    Check Availability
  • Black 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLTBlack 2021 GMC Sierra 1500 SLT

    $26,815

    120,921 mi.
    Est. $495/mo

    Shawn's Motor Credit

    Houston, TX (30 mi)
    Check Availability
  • Brownstone Metallic 2021 GMC Sierra 1500 SLTBrownstone Metallic 2021 GMC Sierra 1500 SLTBrownstone Metallic 2021 GMC Sierra 1500 SLTBrownstone Metallic 2021 GMC Sierra 1500 SLTBrownstone Metallic 2021 GMC Sierra 1500 SLTBrownstone Metallic 2021 GMC Sierra 1500 SLT

    $32,782

    62,790 mi.
    Est. $605/mo

    McRee Ford

    4.5
    Dickinson, TX (27 mi)
    Check Availability
  • Pacific Blue Metallic 2021 GMC Sierra 1500 DenaliPacific Blue Metallic 2021 GMC Sierra 1500 DenaliPacific Blue Metallic 2021 GMC Sierra 1500 DenaliPacific Blue Metallic 2021 GMC Sierra 1500 DenaliPacific Blue Metallic 2021 GMC Sierra 1500 DenaliPacific Blue Metallic 2021 GMC Sierra 1500 Denali

    $37,995

    22,942 mi.
    Est. $701/mo

    Houston Auto World

    Houston, TX (30 mi)
    Check Availability
  • Ebony Twilight Metallic 2021 GMC Sierra 1500 Denali

    Not Priced

    103,470 mi.
    Est. $0/mo

    Strawberry Road Auto Sales

    Pasadena, TX (15 mi)
    Check Availability
  • Satin Steel Metallic 2021 GMC Sierra 1500 AT4

    Not Priced

    144,502 mi.
    Est. $0/mo

    Strawberry Road Auto Sales

    Pasadena, TX (15 mi)
    Check Availability
  • Satin Steel Metallic 2021 GMC Sierra 1500 Denali

    Not Priced

    90,865 mi.
    Est. $0/mo

    Strawberry Road Auto Sales

    Pasadena, TX (15 mi)
    Check Availability
  • Onyx Black 2021 GMC Sierra 1500 Denali

    Not Priced

    118,765 mi.
    Est. $0/mo

    Strawberry Road Auto Sales

    Pasadena, TX (15 mi)
    Check Availability
  • Onyx Black 2021 GMC Sierra 1500 SLE

    $24,000

    122,520 mi.
    Est. $443/mo

    Strawberry Road Auto Sales

    Pasadena, TX (15 mi)
    Check Availability
  • Summit White 2021 GMC Sierra 1500 AT4

    Not Priced

    129,633 mi.
    Est. $0/mo

    Strawberry Road Auto Sales

    Pasadena, TX (15 mi)
    Check Availability
  • $33,402

    $3.1K
    92,700 mi.
    Est. $616/mo

    Group 1 Buick GMC South

    4.6
    Houston, TX (18 mi)
    Check Availability
  • Onyx Black 2021 GMC Sierra 1500 AT4

    $32,991

    112,033 mi.
    Est. $609/mo

    Demontrond Buick GMC

    4.7
    Houston, TX (25 mi)
    Check Availability
  • 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

    $30,873

    65,719 mi.
    Est. $570/mo

    VanGuard GMC

    4.7
    $421 delivery from Sherman, TX (281 mi)
    Check Availability
  • 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

    $35,998

    $1K
    94,439 mi.
    Est. $664/mo

    CarMax McKinney

    4.4
    $149 delivery to Houston, TX (19 mi)
    Check Availability

GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $59,947 10 Great deals
2025 GMC Sierra 1500 $49,453 6 Great deals
2024 GMC Sierra 1500 $49,943 6 Great deals
2023 GMC Sierra 1500 $44,581 9 Great deals
2022 GMC Sierra 1500 $40,924 6 Great deals
2020 GMC Sierra 1500 $32,904 7 Great deals
2019 GMC Sierra 1500 $33,246 6 Good deals
2018 GMC Sierra 1500 $23,688 7 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 $34,012, with pricing starting at $14,000.

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

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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