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

74 results

San Marcos, CA

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2026 GMC Sierra 1500

New car | MSRP $65,640

$62,390

National City, CA

34 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
Mileage:: 5
Stock number:: TG220576
VIN:: 3GTUUDEDXTG220576

2026 GMC Sierra 1500

New car | MSRP $69,330

$63,082

Temecula, CA

26 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, Perforated Leather-Appointed Front Outb
Transmission:: Automatic
Mileage:: 1
Stock number:: G260335
VIN:: 3GTUUDE83TG179162

2026 GMC Sierra 1500

New car | MSRP $69,930

$63,682

Temecula, CA

26 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, Perforated Leather-Appointed Front Outb
Transmission:: Automatic
Mileage:: 1
Stock number:: G260300
VIN:: 1GTUUDE89TZ204212

2026 GMC Sierra 1500

New car | MSRP $64,095

$55,845

Laguna Niguel, CA

41 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:: 9
Stock number:: TG182464
VIN:: 3GTUUDED5TG182464

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2026 GMC Sierra 1500

New car | MSRP $64,095

$55,845

Laguna Niguel, CA

41 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:: 18
Stock number:: TG151729
VIN:: 3GTUUDED3TG151729

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2026 GMC Sierra 1500

New car | MSRP $69,330

$63,085

Temecula, CA

26 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, Perforated Leather-Appointed Front Outb
Transmission:: Automatic
Mileage:: 1
Stock number:: G260358
VIN:: 1GTUUDE85TZ215983

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2026 GMC Sierra 1500

New car | MSRP $67,420

$61,515

Carlsbad, CA

9 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
Mileage:: 10
Stock number:: TG155767
VIN:: 3GTUUDED9TG155767

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2026 GMC Sierra 1500

New car | MSRP $64,330

$58,321

Laguna Niguel, CA

41 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
Mileage:: 18
Stock number:: TZ134677
VIN:: 1GTUUDE89TZ134677

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.