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New GMC Sierra 1500 SLT for Sale near San Marcos, TX

257 results
San Marcos, TX
2026 GMC Sierra 1500 SLT Crew Cab 4WD Covert Buick GMC Bee Cave

2026 GMC Sierra 1500

New car | MSRP $70,084

$67,084

BeeCave, TX
30 mi away
Year:
2026
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
Fuel type:
Gasoline
Interior color:
Black (Jet Blk Perforated Lth-Ap)
Transmission:
Automatic
Mileage:
5
Stock number:
TG233709
VIN:
3GTUUDEL3TG233709

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $67,059

$61,809

Selma, TX
29 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
TITANIUM RUSH MET
Fuel type:
Gasoline
Interior color:
H1Y
Transmission:
Automatic
Mileage:
4,456
Stock number:
G260230
VIN:
3GTUUDEL3TG106345

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $68,370

$56,370

Round Rock, TX
48 mi away
Year:
2026
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
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock number:
TG211259
VIN:
3GTUUDED8TG211259

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $63,845

$52,845

BeeCave, TX
30 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
5
Stock number:
TG119834
VIN:
3GTUUDED5TG119834

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $66,929

$56,679

Austin, TX
39 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
B260475
VIN:
3GTUUDED1TG140275

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,395

$59,145

Seguin, TX
21 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
13
Stock number:
TG114541
VIN:
3GTUUDE85TG114541

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,695

$58,695

Round Rock, TX
48 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Volcanic Red Tintcoat
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Stock number:
TG237502
VIN:
3GTUUDE87TG237502

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2026 GMC Sierra 1500

New car | MSRP $67,664

$57,414

Austin, TX
39 mi away
Year:
2026
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
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
10
Stock number:
B260782
VIN:
3GTUUDED0TG201843

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $66,845

$57,045

Round Rock, TX
48 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
23
Stock number:
TG105037
VIN:
3GTUUDED8TG105037

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,275

$58,275

Round Rock, TX
48 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Stock number:
TG237561
VIN:
3GTUUDE81TG237561

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $63,600

$53,600

Round Rock, TX
48 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
3
Stock number:
TG233633
VIN:
3GTUUDED6TG233633

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $70,380

$60,380

San Antonio, TX
37 mi away
Year:
2026
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
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
TZ148217
VIN:
1GTUUDEL6TZ148217

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,395

$59,145

Seguin, TX
21 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Titanium Rush Metallic
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
11
Stock number:
TG114618
VIN:
3GTUUDE83TG114618

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,659

$58,409

Austin, TX
39 mi away
Year:
2026
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
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
10
Stock number:
B260638
VIN:
3GTUUDED6TG144855

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 1500

New car | MSRP $66,000

$54,445

San Marcos, TX
5 mi away
Year:
2025
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,183
Stock number:
SG223061
VIN:
3GTUUDEL6SG223061

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $67,840

$55,840

Round Rock, TX
48 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
25
Stock number:
TG113044
VIN:
3GTUUDED1TG113044

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,095

$54,095

Round Rock, TX
48 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
3
Stock number:
TG226163
VIN:
3GTUUDED4TG226163

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,585

$57,585

San Antonio, TX
50 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
3
Stock number:
TZ191866
VIN:
1GTUUDED4TZ191866

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $70,875

$60,875

San Antonio, TX
37 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
TZ146148
VIN:
1GTUUDEL3TZ146148

  1. Home
  2. / New Cars
  3. / GMC Sierra 1500
  4. / SLT
  5. / Texas
  6. / San Marcos
FAQs

GMC Sierra 1500 SLT FAQs

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

Depending on the engine and options, the GMC Sierra 1500 SLT gets between 16 and 24 MPG (or EV battery range).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

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