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Used 2021 GMC Sierra 1500 for Sale near San Antonio, TX

534 results
San Antonio, TX
2020 GMC Sierra 1500 SLT Crew Cab RWD Cecil Atkission Ford

2020 GMC Sierra 1500

SLT Crew Cab RWD

66,392 miles

$32,995

Good Deal
Certified Pre-Owned
Hondo, TX
39 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
355 hp 5.3L V8
Exterior color:
Pacific Blue Metallic
Combined gas mileage:
20 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
8-Speed Automatic
Mileage:
66,392
Stock number:
KD27168A
VIN:
1GTP8DEDXLZ212334

Sponsored

2020 GMC Sierra 1500 SLT Crew Cab 4WD

2020 GMC Sierra 1500

SLT Crew Cab 4WD

79,264 miles

$34,179

Good Deal
San Antonio, TX
13 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Red Quartz Tintcoat
Combined gas mileage:
19 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
79,264
Stock number:
LG140036T
VIN:
3GTU9DED3LG140036

Sponsored

2020 GMC Sierra 1500 SLT Crew Cab RWD

2020 GMC Sierra 1500

SLT Crew Cab RWD

23,386 miles

$37,987

Fair Deal
Certified Pre-Owned
Selma, TX
16 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
355 hp 5.3L V8
Exterior color:
Silver
Combined gas mileage:
20 MPG
Fuel type:
Gasoline
Interior color:
H1Y
Transmission:
Automatic
Mileage:
23,386
Stock number:
G250992A
VIN:
3GTP8DEDXLG377560

Sponsored

2020 GMC Sierra 1500 SLT Crew Cab RWD

2020 GMC Sierra 1500

SLT Crew Cab RWD

36,936 miles

$33,981

Great Deal
Seguin, TX
32 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
355 hp 5.3L V8
Exterior color:
Pacific Blue Metallic
Combined gas mileage:
20 MPG
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
8-Speed Automatic
Mileage:
36,936
Stock number:
04372U
VIN:
3GTU8DED7LG204372

2021 GMC Sierra 1500 Elevation Crew Cab RWD

2021 GMC Sierra 1500

Elevation Crew Cab RWD

99,338 miles

$25,995

Fair Deal
Schertz, TX
16 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
310 hp 2.7L I4
Exterior color:
Onyx Black
Combined gas mileage:
21 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
99,338
Stock number:
UG452250
VIN:
3GTP8CEK6MG452250

2021 GMC Sierra 1500 AT4 Crew Cab 4WD

2021 GMC Sierra 1500

AT4 Crew Cab 4WD

82,550 miles

$33,995

Great Deal
Bandera, TX
39 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Gray (Dark Sky Metallic)
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
82,550
Stock number:
415980
VIN:
1GTP9EED9MZ415980

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2021 GMC Sierra 1500

SLT Crew Cab 4WD

99,008 miles

$31,991

Good Deal
San Antonio, TX
14 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Summit White
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
99,008
Stock number:
MG333143T
VIN:
3GTU9DEL4MG333143

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2021 GMC Sierra 1500

AT4 Crew Cab 4WD

63,963 miles

$38,991

Fair Deal
Certified Pre-Owned
San Antonio, TX
8 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Onyx Black
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
63,963
Stock number:
S5653A
VIN:
3GTP9EEDXMG386229

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2020 GMC Sierra 1500

SLT Crew Cab RWD

30,870 miles

$35,795

Good Deal
San Antonio, TX
6 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
355 hp 5.3L V8
Exterior color:
White Frost Tricoat
Combined gas mileage:
20 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
8-Speed Automatic
Mileage:
30,870
Stock number:
PX209023
VIN:
3GTP8DED0LG209023

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2022 GMC Sierra 1500

SLT Crew Cab 4WD

38,722 miles

$41,525

Great Deal
Certified Pre-Owned
Selma, TX
17 mi away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
White Frost Tricoat
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
38,722
Stock number:
CA15496
VIN:
3GTUUDED6NG599692

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2022 GMC Sierra 1500

Denali Crew Cab 4WD

27,593 miles

$45,562

Great Deal
San Antonio, TX
13 mi away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Titanium Rush Metallic
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
27,593
Stock number:
NG678574A
VIN:
3GTUUGEDXNG678574

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2020 GMC Sierra 1500

SLT Crew Cab RWD

113,127 miles

$27,337

Good Deal
Castroville, TX
25 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
355 hp 5.3L V8
Exterior color:
White
Combined gas mileage:
20 MPG
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
113,127
Stock number:
LG163579
VIN:
3GTP8DED2LG163579

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2020 GMC Sierra 1500

AT4 Crew Cab 4WD

108,616 miles

$32,995

Good Deal
Bandera, TX
39 mi away
Year:
2020
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Carbon Black Metallic
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
108,616
Stock number:
250622
VIN:
1GTU9EET0LZ250622

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2022 GMC Sierra 1500

SLT Crew Cab RWD

71,260 miles

$36,991

Good Deal
San Antonio, TX
14 mi away
Year:
2022
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
4X2
Engine:
355 hp 5.3L V8
Exterior color:
Pacific Blue Metallic
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
71,260
Stock number:
NZ613908T
VIN:
1GTPHDED7NZ613908

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2021 GMC Sierra 1500

AT4 Crew Cab 4WD

90,325 miles

$37,987

Fair Deal
Selma, TX
16 mi away
Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
277 hp 3L I6 Diesel
Exterior color:
Gray (SATIN STEEL MET)
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
HVD
Transmission:
Automatic
Mileage:
90,325
Stock number:
GW2900A
VIN:
1GTU9EET3MZ190109

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  1. Home
  2. / Used Cars
  3. / GMC Sierra 1500
  4. / 2021
  5. / Texas
  6. / San Antonio
Overview
Reviews
FAQs
Picture of 2021 GMC Sierra 1500

Unless you can’t live without the deeply-satisfying rumble of a V8 engine, the 2021 GMC Sierra 1500 is at its best when equipped with the affordable Duramax turbodiesel inline-six.

GMC is the “professional grade” brand at General Motors, but that’s just marketing mumbo jumbo. The 2021 GMC Sierra 1500 is the same thing as a Chevrolet Silverado 1500, but with different styling and a handful of unique features, like an optional carbon-fiber composite cargo bed. This year, GMC makes several changes to its full-size light-duty pickup truck, none of them earth-shattering. This remains a fundamentally appealing truck in need of attention to the details.

4.9 Overall rating

(46 reviews)
Matthew B
5.0
Reviewed a 2021 GMC AT4 Crew Cab 4WD on Jan 07, 2025

Best truck I have driven! Highway speeds are great and feels like I’m driving a Cadillac.

Greg O
5.0
Reviewed a 2021 GMC Sierra 1500 on Feb 15, 2024

Nice vehicle! Liked it better than the same year Ram.

cameron s
5.0
Reviewed a 2021 GMC Sierra 1500 on Jan 09, 2024

Its great looking and functioning very smooth with a excellent warranty. I miss the trunk in my Ridgeline but there are so many aftermarket applications Im excited to build this truck out.

Donald P
5.0
Reviewed a 2021 GMC Sierra 1500 on Oct 08, 2023

I love everything about this truck, so much I bought one. I got one with the 3liter duramax. Hopefully it’ll be the last truck I’ll ever own.

Randy R
5.0
Reviewed a 2021 GMC Sierra 1500 on Jun 05, 2023

The features on the 2021 GMC Sierra was everything and more then what I expected. The value of the truck was decent considering the times we live in now. Would highly recommend GMC so far

2021 GMC Sierra 1500 FAQs

How much does the 2021 GMC Sierra 1500 cost in San Antonio, TX?

The average 2021 GMC Sierra 1500 costs about $36,338.28. The average price has decreased by -8.2% since last year. The 534 for sale near San Antonio, TX on CarGurus, range from $17,006 to $61,354 in price.

Is the 2021 GMC Sierra 1500 a good car?

CarGurus experts gave the 2021 GMC Sierra 1500 an overall rating of 5.7/10 and 2021 GMC Sierra 1500 owners have rated the vehicle a 4.9/5 stars on average. If a vehicle has both strong expert and owner reviews, you can feel confident in its quality. If either expert reviews, owner reviews, or both are spotty, you might want to do some research to figure out where the car falls short.

How many 2021 GMC Sierra 1500 vehicles in San Antonio, TX have no reported accidents or damage?

495 out of 534 for sale near San Antonio, TX have no reported accidents or damage.

Is the 2021 GMC Sierra 1500 safe?

CarGurus experts gave the 2021 GMC Sierra 1500 a safety rating of 4/10.

What is the fuel economy of the 2021 GMC Sierra 1500?

Depending on the engine and options, the 2021 GMC Sierra 1500 gets between 16 and 26 MPG (or EV battery range).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

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