New & Used 2026 GMC Terrain for Sale near O Fallon, MO

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O Fallon, MO

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2025 GMC Terrain

Elevation AWD

10,206 miles

$29,990

Fair Deal

Saint Peters, MO

8 mi away

Year:: 2025
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Sterling Metallic
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 10,206
Stock number:: P6918-1
VIN:: 3GKALUEG6SL277240

2026 GMC Terrain

Denali AWD

5,696 miles

$37,286

Good Deal

Certified Pre-Owned

Herculaneum, MO

45 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Downpour Metallic
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 5,696
Stock number:: 257755
VIN:: 3GKALZEG3TL129643

2025 GMC Terrain

New car | MSRP $33,270

$29,976

Columbia, IL

37 mi away

Year:: 2025
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Sterling Metallic
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: Continuously Variable Transmission
Mileage:: 3,976
Stock number:: G7053
VIN:: 3GKALMEG8SL290796

2026 GMC Terrain

New car | MSRP $32,885

$29,874

Collinsville, IL

39 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Sterling Metallic
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: Continuously Variable Transmission
Mileage:: 2,142
Stock number:: L26204
VIN:: 3GKALMEG7TL166259

2026 GMC Terrain

New car | MSRP $34,885

$31,792

Collinsville, IL

39 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Black (Ebony Twilight Metallic)
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 2,209
Stock number:: L26292
VIN:: 3GKALUEG2TL209700

2026 GMC Terrain

New car | MSRP $33,790

$30,790

Collinsville, IL

39 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Sterling Metallic
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 2,416
Stock number:: L26168
VIN:: 3GKALUEG4TL162105

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2026 GMC Terrain

New car | MSRP $34,390

$32,671

Belleville, IL

43 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Summit White
Combined gas mileage:: 26 MPG
Fuel type:: Gasoline
Mileage:: 4
Stock number:: G4582
VIN:: 3GKALUEGXTL273645

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2026 GMC Terrain

New car

$42,678

Saint Louis, MO

30 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Summit White
Combined gas mileage:: 25 MPG
Fuel type:: Gasoline
Interior color:: After Dark Cloth
Transmission:: Automatic
Mileage:: 2
Stock number:: T260647
VIN:: 3GKALZEG3TL322150

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2026 GMC Terrain

New car | MSRP $31,295

$29,730

Belleville, IL

43 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Summit White
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Mileage:: 13
Stock number:: G4455
VIN:: 3GKALMEG0TL144426

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2026 GMC Terrain

New car | MSRP $45,375

$43,249

Collinsville, IL

39 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Riverstone Metallic
Fuel type:: Gasoline
Interior color:: Forest Storm
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 7
Stock number:: L263052
VIN:: 3GKALYEGXTL362509

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2026 GMC Terrain

New car

$33,788

Saint Louis, MO

30 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Summit White
Combined gas mileage:: 26 MPG
Fuel type:: Gasoline
Interior color:: After Dark Cloth
Transmission:: Automatic
Mileage:: 4
Stock number:: T260654
VIN:: 3GKALUEG4TL297830

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2026 GMC Terrain

New car | MSRP $33,940

$30,927

Collinsville, IL

39 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Volcanic Red Tintcoat
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 2,267
Stock number:: L26163
VIN:: 3GKALUEG1TL161073

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2026 GMC Terrain

New car | MSRP $34,280

$32,694

Collinsville, IL

39 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Riverstone Metallic
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: Continuously Variable Transmission
Mileage:: 7
Stock number:: L262572
VIN:: 3GKALMEG9TL346732

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2026 GMC Terrain

New car | MSRP $32,240

$30,628

Belleville, IL

43 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Summit White
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Mileage:: 4
Stock number:: G4480
VIN:: 3GKALMEG4TL152772

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2026 GMC Terrain

New car | MSRP $34,885

$31,792

Collinsville, IL

39 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Black (Ebony Twilight Metallic)
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 2,160
Stock number:: L26200
VIN:: 3GKALUEG2TL167769

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2026 GMC Terrain

New car | MSRP $47,180

$44,939

Troy, MO

17 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Glacier White Tricoat
Combined gas mileage:: 25 MPG
Fuel type:: Gasoline
Interior color:: Light Ash Gray / Very Dark Atmosphere Leather
Transmission:: Automatic
Mileage:: 2
Stock number:: 260241
VIN:: 3GKALZEG0TL361102

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2026 GMC Terrain

New car | MSRP $31,790

$30,201

Belleville, IL

43 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Riverstone Metallic
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Mileage:: 4
Stock number:: G4458
VIN:: 3GKALMEG5TL144793

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2026 GMC Terrain

New car

$41,155

Saint Louis, MO

30 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Black (Ebony Twilight Metallic)
Combined gas mileage:: 25 MPG
Fuel type:: Gasoline
Transmission:: 8-Speed Automatic
Mileage:: 3
Stock number:: T260116
VIN:: 3GKALZEG9TL226250

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2026 GMC Terrain

New car | MSRP $33,100

$32,107

O'Fallon, MO

8 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Volcanic Red
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Interior color:: After Dk Premium Clth
Transmission:: Continuously Variable Transmission
Stock number:: G26392
VIN:: 3GKALMEG4TL361400

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2026 GMC Terrain

New car | MSRP $34,390

$32,671

Saint Peters, MO

8 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Rapids Metallic
Fuel type:: Gasoline
Interior color:: After Dark
Transmission:: 8-Speed Automatic Overdrive
Mileage:: 5
Stock number:: 53518
VIN:: 3GKALUEG0TL246812

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2026 GMC Terrain

New car | MSRP $43,385

$42,083

O'Fallon, MO

8 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Riverstone Metallic
Fuel type:: Gasoline
Interior color:: Forest Storm W/Mahogany Accents
Transmission:: 8-Speed Automatic Overdrive
Stock number:: G26398
VIN:: 3GKALYEG0TL268929

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2026 GMC Terrain

New car | MSRP $34,390

$32,671

Belleville, IL

43 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Riverstone Metallic
Combined gas mileage:: 26 MPG
Fuel type:: Gasoline
Mileage:: 4
Stock number:: G4585
VIN:: 3GKALUEG4TL273382

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2026 GMC Terrain

New car | MSRP $32,390

$30,771

Belleville, IL

43 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Riverstone Metallic
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Mileage:: 4
Stock number:: G4570
VIN:: 3GKALMEG3TL272613

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2026 GMC Terrain

New car | MSRP $32,390

$30,771

Belleville, IL

43 mi away

Year:: 2026
Make:: GMC
Model:: Terrain
Body type:: SUV / Crossover
Doors:: 4 doors
Drivetrain:: Front-Wheel Drive
Engine:: 175 hp 1.5L I4
Exterior color:: Black (Ebony Twilight Metallic)
Combined gas mileage:: 27 MPG
Fuel type:: Gasoline
Mileage:: 4
Stock number:: G4575
VIN:: 3GKALMEG5TL273438

FAQs

2026 GMC Terrain FAQs

How much does the 2026 GMC Terrain cost in O Fallon, MO?

The average 2026 GMC Terrain costs about $34,623.51. The average price has decreased by -3% since last year. The 21 for sale near O Fallon, MO on CarGurus, range from $25,283 to $39,438 in price.

How many 2026 GMC Terrain vehicles in O Fallon, MO have no reported accidents or damage?

18 out of 21 for sale near O Fallon, MO have no reported accidents or damage.

What is the fuel economy of the 2026 GMC Terrain?

Depending on the engine and options, the 2026 GMC Terrain gets between 25 and 26 MPG (or EV battery range).

What fuel types are available?

Gasoline engines are available.

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