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116 listings
- New Listing$36,090MSRP $36,090
- Exterior color: Volcanic Red TintcoatVolcanic Red Tintcoat
- Interior color: After DarkAfter Dark
- 5 Seats, 26 City / 28 Hwy MPG
- Suntrup Buick GMC (8 mi away)(1)
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Located in Saint Peters, MO / 8 miles away from O Fallon, MO
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG2TL208921
Stock: 208921
Listed since: 07-13-2025 - Arriving Soon$35,445MSRP $35,445
- Exterior color: Summit WhiteSummit White
- Interior color: After Dark leatheretteAfter Dark leatherette
- 5 Seats, 26 City / 28 Hwy MPG
- Suntrup Buick GMC (8 mi away)(1)
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Located in Saint Peters, MO / 8 miles away from O Fallon, MO
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG2TL206375
Stock: 206375
Listed since: 07-12-2025 - New Listing$35,940MSRP $35,940
- Exterior color: Rapids MetallicRapids Metallic
- Interior color: After DarkAfter Dark
- 5 Seats, 26 City / 28 Hwy MPG
- Suntrup Buick GMC (8 mi away)(1)
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Located in Saint Peters, MO / 8 miles away from O Fallon, MO
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG5TL207648
Stock: 207648
Listed since: 07-13-2025 - New Listing$35,940MSRP $35,940
- Exterior color: Ebony Twilight MetallicEbony Twilight Metallic
- Interior color: After DarkAfter Dark
- 5 Seats, 26 City / 28 Hwy MPG
- Suntrup Buick GMC (8 mi away)(1)
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Located in Saint Peters, MO / 8 miles away from O Fallon, MO
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEGXTL207838
Stock: 207838
Listed since: 07-13-2025 - $30,935MSRP $32,435
- Exterior color: Summit WhiteSummit White
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Suntrup Buick GMC (8 mi away)(1)
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Located in Saint Peters, MO / 8 miles away from O Fallon, MO
The GMC Terrain Elevation is a 2026 model automobile that is sure to turn heads. Boasting a powerful 1.5 liter 4 cylinder engine with turbocharging, t...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEGXTL106461
Stock: 53389
Listed since: 06-24-2025 - New Listing$35,940MSRP $35,940
- Exterior color: Riverstone MetallicRiverstone Metallic
- Interior color: After DarkAfter Dark
- 5 Seats, 26 City / 28 Hwy MPG
- Suntrup Buick GMC (8 mi away)(1)
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Located in Saint Peters, MO / 8 miles away from O Fallon, MO
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG9TL207717
Stock: 207717
Listed since: 07-13-2025 - $30,820MSRP $32,885
- Exterior color: Ebony Twilight MetallicEbony Twilight Metallic
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
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Located in Saint Louis, MO / 18 miles away from O Fallon, MO
Recent Arrival! $2,065 off MSRP!2026 GMC Terrain Ebony Twilight MetallicThe listed Prices do not include additional fees and costs of closing, includi...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG2TL174382
Stock: BG35725
Listed since: 07-01-2025 - $30,964MSRP $33,035
- Exterior color: Volcanic Red TintcoatVolcanic Red Tintcoat
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
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Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,071 off MSRP!2026 GMC Terrain Volcanic Red TintcoatThe listed Prices do not include additional fees and costs of closing, including government fees...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG5TL170200
Stock: BG35723
Listed since: 06-26-2025 - $30,344MSRP $32,390
- Exterior color: Summit WhiteSummit White
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
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Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,046 off MSRP!2026 GMC Terrain Summit WhiteThe listed Prices do not include additional fees and costs of closing, including government fees and taxe...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG3TL105006
Stock: BG35707
Listed since: 06-04-2025 - $42,354MSRP $44,900
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Forest Storm w/Mahogany Accents leatherette/clothForest Storm w/Mahogany Accents leatherette/cloth
- 5 Seats, 24 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
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Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,546 off MSRP!2026 GMC Terrain Sterling MetallicThe listed Prices do not include additional fees and costs of closing, including government fees and...
Features and Specs:
25 Combined MPG (24 City/28 Highway)
Listing Information:
VIN: 3GKALYEG4TL153248
Stock: BG35719
Listed since: 06-12-2025 - $29,293MSRP $31,295
- Exterior color: Summit WhiteSummit White
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
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Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,002 off MSRP!2026 GMC Terrain Summit WhiteThe listed Prices do not include additional fees and costs of closing, including government fees and taxe...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG7TL162065
Stock: BG35716
Listed since: 06-20-2025 - $30,820MSRP $32,885
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
Close
Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,065 off MSRP!2026 GMC Terrain Sterling MetallicThe listed Prices do not include additional fees and costs of closing, including government fees and...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG7TL103873
Stock: BG35702
Listed since: 06-02-2025 - $29,768MSRP $31,790
- Exterior color: Ebony Twilight MetallicEbony Twilight Metallic
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
Close
Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,022 off MSRP!2026 GMC Terrain Ebony Twilight MetallicThe listed Prices do not include additional fees and costs of closing, including government fe...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG7TL101394
Stock: BG35704L
Listed since: 06-04-2025 - $29,293MSRP $31,295
- Exterior color: Summit WhiteSummit White
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
Close
Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,002 off MSRP!2026 GMC Terrain Summit WhiteThe listed Prices do not include additional fees and costs of closing, including government fees and taxe...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG8TL104580
Stock: BG35715L
Listed since: 05-30-2025 - $30,820MSRP $32,885
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
Close
Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,065 off MSRP!2026 GMC Terrain Sterling MetallicThe listed Prices do not include additional fees and costs of closing, including government fees and...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG1TL105456
Stock: BG35710L
Listed since: 06-13-2025 - Arriving Soon$32,836MSRP $34,985
- Exterior color: Ebony Twilight MetallicEbony Twilight Metallic
- Interior color: After Dark leatheretteAfter Dark leatherette
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
Close
Located in Saint Louis, MO / 18 miles away from O Fallon, MO
Recent Arrival! $2,149 off MSRP!2026 GMC Terrain Ebony Twilight MetallicThe listed Prices do not include additional fees and costs of closing, includi...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG9TL187372
Stock: BG35726
Listed since: 06-30-2025 - $29,293MSRP $31,295
- Exterior color: Summit WhiteSummit White
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
Close
Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,002 off MSRP!2026 GMC Terrain Summit WhiteThe listed Prices do not include additional fees and costs of closing, including government fees and taxe...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG8TL101596
Stock: BG35701
Listed since: 06-02-2025 - $30,820MSRP $32,885
- Exterior color: Ebony Twilight MetallicEbony Twilight Metallic
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 26 City / 28 Hwy MPG
- Lou Fusz Buick GMC (18 mi away)(2)
Close
Located in Saint Louis, MO / 18 miles away from O Fallon, MO
$2,065 off MSRP!2026 GMC Terrain Ebony Twilight MetallicThe listed Prices do not include additional fees and costs of closing, including government fe...
Features and Specs:
27 Combined MPG (26 City/28 Highway)
Listing Information:
VIN: 3GKALMEG2TL102601
Stock: BG35709
Listed since: 06-24-2025 - $33,335MSRP $34,885
- Exterior color: Rapids MetallicRapids Metallic
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 24 City / 28 Hwy MPG
- Jim Trenary of Union (26 mi away)
- Home delivery*
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Located in Union, MO / 26 miles away from O Fallon, MO
Ask for Internet Sales. Come and See Jim Trenary Deal Makers. Restrictions may apply. Please see your internet sales associate for details.
Features and Specs:
25 Combined MPG (24 City/28 Highway)
Listing Information:
VIN: 3GKALUEG4TL141108
Stock: U26006
Listed since: 05-17-2025 - $40,435MSRP $41,985
- Exterior color: Riverstone MetallicRiverstone Metallic
- Interior color: Forest Storm w/Mahogany Accents leatherette/clothForest Storm w/Mahogany Accents leatherette/cloth
- 5 Seats, 24 City / 28 Hwy MPG
- Jim Trenary of Union (26 mi away)
- Home delivery*
Close
Located in Union, MO / 26 miles away from O Fallon, MO
Ask for Internet Sales. Come and See Jim Trenary Deal Makers. Restrictions may apply. Please see your internet sales associate for details.
Features and Specs:
25 Combined MPG (24 City/28 Highway)
Listing Information:
VIN: 3GKALYEG0TL124507
Stock: U26001
Listed since: 04-30-2025 - $34,390MSRP $34,390
- Exterior color: Summit WhiteSummit White
- Interior color: After Dark clothAfter Dark cloth
- 5 Seats, 24 City / 28 Hwy MPG
- Jim Trenary of Union (26 mi away)
- Home delivery*
Close
Located in Union, MO / 26 miles away from O Fallon, MO
Ask for Internet Sales. Come and See Jim Trenary Deal Makers. Restrictions may apply. Please see your internet sales associate for details.
Features and Specs:
25 Combined MPG (24 City/28 Highway)
Listing Information:
VIN: 3GKALUEG4TL141562
Stock: U26008
Listed since: 05-20-2025
Showing 1 - 21 out of 116 listings
Consumer Reviews for the GMC Terrain
Read recent reviews for the GMC Terrain
The Ultimate Terrain Tamer: 2025 GMC Terrain
Jdbutts, 02/27/2025
2025 GMC Terrain Elevation 4dr SUV (1.5L 4cyl Turbo CVT)
From the moment I got behind the wheel of my 2025 GMC Terrain AWD with the Technology Package, I knew I had made the right choice. This SUV is the perfect blend of style, capability, and cutting-edge features.
The all-wheel-drive system provides a confident and smooth ride, whether on highways or rougher terrain. The Technology Package takes the experience to the next level, with an … intuitive infotainment system, a crystal-clear head-up display, and advanced driver-assist features that make every drive feel effortless. The interior is both sleek and spacious, with premium materials that give it a luxury feel without the luxury price tag.
Whether navigating city streets or exploring the great outdoors, the 2025 GMC Terrain proves to be the perfect companion. This SUV isn’t just a vehicle—it’s an experience. GMC knocked it out of the park!
| Trim | MPG | Engine | Starting Price |
|---|---|---|---|
| 2026 GMC Terrain Elevation 4dr SUV (1.5L 4cyl Turbo CVT) | 26 - 28 | 4-cylinders (gas) | $31,295 |
| 2026 GMC Terrain AT4 4dr SUV AWD (1.5L 4cyl Turbo 8A) | 24 - 28 | 4-cylinders (gas) | $41,985 |
| 2026 GMC Terrain Elevation 4dr SUV AWD (1.5L 4cyl Turbo 8A) | 24 - 28 | 4-cylinders (gas) | $34,390 |
More about the GMC Terrain
Edmunds has 116 New GMC Terrains for sale near you, including a 2026 Terrain Elevation SUV and a 2026 Terrain AT4 SUV ranging in price from $31,295 to $44,900.
How much is a new 2026 GMC Terrain in O Fallon, MO?
- A new 2026 GMC Terrain starts at $31,295 (including destination charge) in O Fallon, MO. Prices will go up based on the trim level you choose and any options you add. Keep in mind that prices can also vary from one state to another and even from one dealership to the next.
How much does a 2026 GMC Terrain SUV cost in O Fallon, MO?
- A new 2026 GMC Terrain SUV starts at $31,295 in O Fallon, MO. Prices will vary depending on what trim level you choose. Each state may have different pricing, so make sure you enter your correct ZIP code on Edmunds.
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