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New GMC Sierra 1500 SLT for Sale near Assumption, IL

292 results
Assumption, IL
2026 GMC Sierra 1500 SLT Crew Cab 4WD Dave Sinclair Buick GMC

2026 GMC Sierra 1500

New car

$59,200

Saint Louis, MO
98 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:
Onyx Black
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
2
Stock number:
T260648
VIN:
3GTUUDELXTG166168

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car

$53,795

Saint Louis, MO
98 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
1
Stock number:
T260739
VIN:
3GTUUDED1TG207103

Sponsored

2025 GMC Sierra 1500 SLT Crew Cab 4WD

2025 GMC Sierra 1500

New car | MSRP $71,519

$60,975

Saint Peters, MO
96 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:
White Frost Tricoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock number:
53489
VIN:
3GTUUDEL5SG256729

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $68,384

$55,859

Mattoon, IL
35 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Stock number:
G39511
VIN:
3GTUUDEDXTG215975

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $68,020

$55,541

Mattoon, IL
35 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:
Glacier White Tricoat
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
G39009
VIN:
1GTUUDED9TZ183021

2025 GMC Sierra 1500 SLT Crew Cab 4WD

2025 GMC Sierra 1500

New car | MSRP $71,519

$60,975

Saint Peters, MO
96 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:
White Frost Tricoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock number:
53489
VIN:
3GTUUDEL5SG256729

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,335

$57,085

Morton, IL
79 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2
Stock number:
G26324
VIN:
3GTUUDED5TG216158

Preparing for a close up...

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2026 GMC Sierra 1500

New car | MSRP $67,470

$56,126

Saint Peters, MO
96 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
53486
VIN:
1GTUUDED5TZ125472

Preparing for a close up...

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2026 GMC Sierra 1500

New car | MSRP $65,555

$51,879

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,407
Stock number:
L262723
VIN:
3GTUUDED6TG210580

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $65,800

$53,596

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262798
VIN:
3GTUUDEL8TG219756

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $63,600

$52,149

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L263181
VIN:
1GTUUDED6TZ256006

Preparing for a close up...

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2026 GMC Sierra 1500

New car | MSRP $66,475

$55,839

Highland, IL
63 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:
Onyx Black
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Black (Jet Blk Perforated Lth-Ap)
Transmission:
Automatic
Mileage:
10
Stock number:
38975
VIN:
3GTUUDE88TG223947

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,135

$57,142

Mattoon, IL
35 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
Combined gas mileage:
24 MPG
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
4
Stock number:
G39290
VIN:
3GTUUDE80TG187770

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $67,340

$56,840

Morton, IL
79 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
10
Stock number:
G26314
VIN:
3GTUUDED7TG209986

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $67,790

$55,886

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L263733
VIN:
3GTUUDED8TG244990

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $66,090

$52,353

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,205
Stock number:
L261446
VIN:
3GTUUDED0TG151946

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,095

$52,587

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262580
VIN:
3GTUUDED3TG208785

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,095

$52,587

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L263064
VIN:
1GTUUDED2TZ254088

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,385

$54,384

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,446
Stock number:
L262553
VIN:
3GTUUDED3TG204431

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,335

$57,632

Morton, IL
79 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
3,155
Stock number:
G26317
VIN:
3GTUUDED6TG211132

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,095

$52,587

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L263179
VIN:
1GTUUDED9TZ256100

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 1500

New car | MSRP $68,750

$62,000

Sullivan, IL
23 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:
Summit White
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
6
Stock number:
S63317
VIN:
3GTUUDEL6SG263317

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,245

$52,720

Collinsville, IL
77 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L263236
VIN:
1GTUUDED6TZ258323

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $69,960

$61,500

Sullivan, IL
23 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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
7
Stock number:
S35179
VIN:
3GTUUDED2TG135179

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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 14 and 24 MPG (or EV battery range).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

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