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New GMC Sierra 1500 SLT for Sale near Decatur, IL

252 results
Decatur, IL
2025 GMC Sierra 1500 SLT Crew Cab 4WD Jennings Beardstown, Inc.

2025 GMC Sierra 1500

New car | MSRP $68,870

$66,120

Beardstown, IL
80 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:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
10
Stock number:
B269
VIN:
3GTUUDEL4SG363254

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $67,340

$59,356

Springfield, 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:
Onyx Black
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
1
Stock number:
26G066
VIN:
1GTUUDED1TZ175883

Sponsored

2025 GMC Sierra 1500 SLT Crew Cab 4WD

2025 GMC Sierra 1500

New car | MSRP $70,270

$59,074

Litchfield, IL
59 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:
10
Stock number:
B11093
VIN:
1GTUUDEL6SZ323693

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $67,490

$56,440

Pekin, IL
62 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
Mileage:
0
Stock number:
E42
VIN:
1GTUUDED7TZ127384

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $66,874

$54,241

Mattoon, IL
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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Stock number:
G39218
VIN:
1GTUUDEDXTZ192133

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $68,135

$56,843

Mattoon, IL
39 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:
Jet Black
Transmission:
Automatic
Mileage:
3
Stock number:
G39246
VIN:
3GTUUDE83TG187732

Preparing for a close up...

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2026 GMC Sierra 1500

New car | MSRP $68,020

$55,242

Mattoon, IL
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:
Glacier White Tricoat
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
G39009
VIN:
1GTUUDED9TZ183021

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2026 GMC Sierra 1500

New car | MSRP $64,095

$52,587

Collinsville, IL
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:
Titanium Rush Metallic
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262580
VIN:
3GTUUDED3TG208785

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2026 GMC Sierra 1500

New car | MSRP $61,290

$49,105

Collinsville, IL
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
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262550
VIN:
3GTUUDED9TG206720

Preparing for a close up...

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2026 GMC Sierra 1500

New car | MSRP $65,800

$54,596

Collinsville, IL
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:
Sterling Metallic
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 $67,340

$54,648

Mattoon, IL
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:
Jet Black
Transmission:
Automatic
Stock number:
G39391
VIN:
3GTUUDED7TG227632

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $66,475

$54,693

Collinsville, IL
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:
Titanium Rush Metallic
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L263044
VIN:
3GTUUDED7TG221992

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2026 GMC Sierra 1500

New car | MSRP $68,935

$56,026

Mattoon, IL
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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Stock number:
G39362
VIN:
3GTUUDED1TG210793

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $65,190

$55,556

Collinsville, IL
98 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:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262628
VIN:
3GTUUDE82TG198849

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,245

$52,720

Collinsville, IL
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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262577
VIN:
3GTUUDED0TG208792

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,885

$58,848

Collinsville, IL
98 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:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L263037
VIN:
3GTUUDE84TG224562

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $63,600

$52,149

Collinsville, IL
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:
Summit White
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262578
VIN:
3GTUUDED1TG208218

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,735

$57,367

Mattoon, IL
39 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:
Glacier White Tricoat
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
9
Stock number:
G39373
VIN:
3GTUUDE87TG187720

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $65,060

$51,441

Collinsville, IL
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:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,498
Stock number:
L261400
VIN:
1GTUUDED3TZ187338

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,395

$52,852

Collinsville, IL
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:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262576
VIN:
3GTUUDED0TG208212

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,890

$53,291

Collinsville, IL
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:
Titanium Rush Metallic
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262831
VIN:
3GTUUDED2TG213962

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $69,130

$55,043

Collinsville, IL
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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,342
Stock number:
L26530
VIN:
1GTUUDED0TZ127680

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,240

$56,277

Collinsville, IL
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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262677
VIN:
3GTUUDED4TG211033

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $67,340

$56,290

Pekin, IL
62 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
Mileage:
0
Stock number:
E36
VIN:
1GTUUDED2TZ122996

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  2. / New Cars
  3. / GMC Sierra 1500
  4. / SLT
  5. / Illinois
  6. / Decatur
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 MPGe).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

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