Check the dealer O'Fallon Buick GMC from O'Fallon MO Cars for Sale

2026 GMC Sierra

$38,294

MILEAGE Contact seller

SPECS

3GTNUAEKXTG320954
TurboMax™ engin
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

2-speaker audio system
Bluetooth
GMC Infotainment System with color touchscreen
Wi-Fi Hotspot capable
Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones

O'Fallon Buick GMC

O'Fallon, MO

Listed 1 days

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This NEW 2026 Summit White GMC Sierra 1500 Pro 2.7L I4 Turbocharged DOHC 16V LEV3-SULEV30 310hp 8-Speed Automatic 4WD is well equipped and includes these features and benefits: Convenience Package (Deep-Tinted Glass, Electric Rear-Window Defogger, EZ...

2019 CHEVROLET Impala

$13,900

MILEAGE 115,927 Miles

SPECS

2G11Z5SA2K9145488
197 hp 2.5L I4
6-speed Automatic
Gasoline
Unknown
Sedan

HIGHLIGHTS

Backup Camera
Android Auto
Alloy Wheels
CarPlay

O'Fallon Buick GMC

O'Fallon, MO

Listed 2 days

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This 2019 Pepperdust Metallic Chevrolet Impala LT FWD is well equipped and includes these features and benefits: 22/29 City/Highway MPG Awards: * JD Power Dependability Study * 2019 KBB.com 10 Most Comfortable Cars Under $30,000 * 2019 KBB.co...

2023 FORD F-150

$39,900

MILEAGE 41,634 Miles

SPECS

1FTFW1E83PKF97494
400 hp 3.5L V6
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

Alloy Wheels
Trailer Package
Heat Package
Heated Seats
302A Luxury Equipment Group

O'Fallon Buick GMC

O'Fallon, MO

Listed 2 days

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This 2023 Hot Pepper Red Metallic Tinted Clearcoat Ford F-150 XLT 4WD is well equipped and includes these features and benefits: APPLE CarPlay-ANDROID AUTO, ONE OWNER, LOCAL TRADE, KEYLESS START, METICULOUS SERVICE HISTORY, F-150 XLT, 4D SuperCrew,...

2018 CADILLAC ATS

$16,900

MILEAGE 71,969 Miles

SPECS

1G6AE1RX8J0182336
272 hp 2L I4
8-speed Automatic
Gasoline
AWD
Coupe

HIGHLIGHTS

Leather Seats
Sunroof/Moonroof
Alloy Wheels
Bluetooth
Backup Camera

O'Fallon Buick GMC

O'Fallon, MO

Listed 2 days

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This 2018 Red Obsession Tintcoat Cadillac ATS 2.0L Turbo AWD is well equipped and includes these features and benefits: APPLE CarPlay-ANDROID AUTO, LEATHER, SUNROOF/MOONROOF, LOCAL TRADE, KEYLESS START, METICULOUS SERVICE HISTORY, 2D Coupe, AWD, Red...

2023 GMC Yukon

$64,900

MILEAGE 47,452 Miles

SPECS

1GKS2DKL7PR159626
8 Cyl
Automatic
Gasoline
4WD
SUV

HIGHLIGHTS

Preferred Equipment Package
Navigation System
Keyless Entry
Fog Lights
Spoiler

O'Fallon Buick GMC

O'Fallon, MO

Listed 3 days

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This 2023 Onyx Black GMC Yukon Denali 4WD is well equipped and includes these features and benefits:APPLE CarPlay-ANDROID AUTO, LEATHER, 3RD ROW SEATING, SUNROOF/MOONROOF, ONE OWNER, KEYLESS START, METICULOUS SERVICE HISTORY, Yukon Denali, 4WD, Onyx...

2026 BUICK Envista

$27,807

MILEAGE Contact seller

SPECS

KL47LAEP0TB175403
ECOTEC Turbo engine 1.2L
Automatic
Gasoline
FWD
SUV

HIGHLIGHTS

6-speaker audio system
QuietTuning
SiriusXM Trial Subscription
Ultrawide 11" diagonal HD color touchscreen
Wi-Fi Hotspot capable

O'Fallon Buick GMC

O'Fallon, MO

Listed 3 days

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This NEW 2026 Ocean Buick Envista Preferred ECOTEC 1.2L Turbo 6-Speed Automatic FWD is well equipped and includes these features and benefits: Advanced Safety Package (Adaptive Cruise Control, Lane Change Alert with Side Blind Zone Alert, and Rear Cr...

2026 GMC Sierra

$77,450

MILEAGE Contact seller

SPECS

1GTUUHE85TZ326377
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 3 days

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This NEW 2026 Onyx Black GMC Sierra 1500 Denali Ultimate 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Alpine Umber Full Grain L Leather, 12 Spe...

2026 GMC Sierra

$77,450

MILEAGE Contact seller

SPECS

1GTUUHE83TZ326474
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 3 days

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This NEW 2026 Sterling GMC Sierra 1500 Denali Ultimate 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Alpine Umber Full Grain L Leather, 12 Speak...

2019 NISSAN Armada

$21,900

MILEAGE 108,291 Miles

SPECS

JN8AY2NE4K9758407
390 hp 5.6L V8
7-speed Automatic
Gasoline
4WD
SUV

HIGHLIGHTS

Leather Seats
Sunroof/Moonroof
Navigation System
Adaptive Cruise Control
RS Package

O'Fallon Buick GMC

O'Fallon, MO

Listed 4 days

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This 2019 Pearl White Nissan Armada Platinum 4WD is well equipped and includes these features and benefits: 4WD. Awards: * 2019 KBB.com 5-Year Cost to Own Awards At O'Fallon Buick GMC, we're more than just a car dealership in O'Fallon. We're al...

2024 GMC Sierra

$63,900

MILEAGE 22,260 Miles

SPECS

3GTUUFEL1RG403330
420 hp 6.2L V8
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

Leather Seats
Sunroof/Moonroof
Navigation System
Adaptive Cruise Control
Alloy Wheels

O'Fallon Buick GMC

O'Fallon, MO

Listed 4 days

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This 2024 Thunderstorm Gray GMC Sierra 1500 AT4X 4WD is well equipped and includes these features and benefits: APPLE CarPlay-ANDROID AUTO, LEATHER, SUNROOF/MOONROOF, ONE OWNER, LOCAL TRADE, KEYLESS START, METICULOUS SERVICE HISTORY, Sierra 1500 AT4...

2026 GMC Sierra

$66,417

MILEAGE Contact seller

SPECS

3GTUUEEL5TG339911
EcoTec3 V8 engine 6.2L
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 4 days

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Recent Arrival!This NEW 2026 Summit White GMC Sierra 1500 AT4 EcoTec3 6.2L V8 10-Speed Automatic 4WD is well equipped and includes these features and benefits: AT4 Preferred Package (Power Sliding Rear Window with Rear Defogger and Universal Home Rem...

2017 FORD F-150

$23,900

MILEAGE 134,328 Miles

SPECS

1FTEW1EFXHFC24604
8 Cyl
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

Android Auto
Apple Carplay
CD (Single Disc)
Hard Disk Drive
Navigation System

O'Fallon Buick GMC

O'Fallon, MO

Listed 5 days

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2019 CHEVROLET Camaro

$19,900

MILEAGE 73,086 Miles

SPECS

1G1FB3DX9K0113874
4 Cyl
Automatic
Gasoline
RWD
Convertible

HIGHLIGHTS

6 Speakers
Android Auto
Apple Carplay
Chevrolet Infotainment System
Premium Sound System

O'Fallon Buick GMC

O'Fallon, MO

Listed 5 days

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2026 GMC Sierra

$64,883

MILEAGE Contact seller

SPECS

1GTUUEE88TZ352969
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 5 days

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Recent Arrival!This NEW 2026 Sterling GMC Sierra 1500 AT4 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: AT4 Preferred Package (Power Sliding Rear Window with Rear Defogger and Universal Home Remote), AT4 Pr...

2026 GMC Sierra

$77,450

MILEAGE Contact seller

SPECS

1GTUUHE85TZ352798
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 5 days

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Recent Arrival!This NEW 2026 Onyx Black GMC Sierra 1500 Denali Ultimate 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Alpine Umber Full Grain L...

2026 GMC Sierra

$77,450

MILEAGE Contact seller

SPECS

1GTUUHE83TZ326295
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 5 days

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This NEW 2026 Sterling GMC Sierra 1500 Denali Ultimate 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Alpine Umber Full Grain L Leather, 12 Speak...

2023 BUICK Envision

$30,900

MILEAGE 18,519 Miles

SPECS

LRBFZMR44PD067120
228 hp 2L I4
9-speed Automatic
Gasoline
AWD
SUV

HIGHLIGHTS

Alloy Wheels
Bluetooth
Backup Camera
Remote Start
Blind Spot Monitoring

O'Fallon Buick GMC

O'Fallon, MO

Listed 6 days

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This 2023 Moonstone Gray Metallic Buick Envision Preferred AWD is well equipped and includes these features and benefits: APPLE CarPlay-ANDROID AUTO, ONE OWNER, LOCAL TRADE, KEYLESS START, METICULOUS SERVICE HISTORY, Envision Preferred, AWD, Moonsto...

2026 GMC Sierra

$69,942

MILEAGE Contact seller

SPECS

3GTUUGEL2TG340932
EcoTec3 V8 engine 6.2L
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 6 days

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Recent Arrival!This NEW 2026 Sterling GMC Sierra 1500 Denali EcoTec3 6.2L V8 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Jet Blk Forge Perforated Leat...

2026 GMC Sierra

$73,380

MILEAGE Contact seller

SPECS

3GTUUEE87TG339629
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 6 days

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Recent Arrival!This NEW 2026 Onyx Black GMC Sierra 1500 AT4 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Jet Blk With Kalahari Acc Leather, 10-...

2026 GMC Sierra

$58,520

MILEAGE Contact seller

SPECS

1GTUUCED6TZ350140
EcoTec3 V8 engine 5.3L
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 6 days

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Recent Arrival!This NEW 2026 Onyx Black GMC Sierra 1500 Elevation EcoTec3 5.3L V8 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Cloth Rear Seat with Storage Package, Elevation Premium Package (All-Weather Floor Lin...

2026 GMC Sierra

$77,450

MILEAGE Contact seller

SPECS

1GTUUHE83TZ347194
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 7 days

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Recent Arrival!This NEW 2026 Downpour Met GMC Sierra 1500 Denali Ultimate 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Alpine Umber Full Grain...

2026 GMC Sierra

$77,450

MILEAGE Contact seller

SPECS

1GTUUHE83TZ348524
Duramax® Turbo Di
Automatic
Diesel
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Series with 12-speaker system with CenterPoint
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 7 days

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Recent Arrival!This NEW 2026 Downpour Met GMC Sierra 1500 Denali Ultimate 3.0L I6 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Alpine Umber Full Grain...

2026 BUICK Envista

$27,142

MILEAGE Contact seller

SPECS

KL47LBEP5TB170767
ECOTEC Turbo engine 1.2L
Automatic
Gasoline
FWD
SUV

HIGHLIGHTS

6-speaker audio system
QuietTuning
SiriusXM Trial Subscription
Ultrawide 11" diagonal HD color touchscreen
Wi-Fi Hotspot capable

O'Fallon Buick GMC

O'Fallon, MO

Listed 7 days

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This NEW 2026 Moonstone Buick Envista Sport Touring ECOTEC 1.2L Turbo 6-Speed Automatic FWD is well equipped and includes these features and benefits: 2 USB Ports (1 Type-A, 1 Type-C), 3.50 Final Drive Axle Ratio, 4-Way Manual Front Passenger Seat Ad...

2026 GMC Sierra

$62,639

MILEAGE Contact seller

SPECS

3GTUUDEL4TG315805
EcoTec3 V8 engine 6.2L
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 7 days

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This NEW 2026 Volcanic Red GMC Sierra 1500 SLT EcoTec3 6.2L V8 10-Speed Automatic 4WD is well equipped and includes these features and benefits: High Capacity Suspension Package, ProGrade Trailering System (Hitch View and in-Vehicle Trailering System...

2026 GMC Sierra

$58,025

MILEAGE Contact seller

SPECS

1GTUUCED0TZ350215
EcoTec3 V8 engine 5.3L
Automatic
Gasoline
4WD
Pickup

HIGHLIGHTS

13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth
Bose Premium Sound System
SiriusXM with 360L Trial Subscription
Steering-wheel mounted controls

O'Fallon Buick GMC

O'Fallon, MO

Listed 7 days

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Recent Arrival!This NEW 2026 Summit White GMC Sierra 1500 Elevation EcoTec3 5.3L V8 10-Speed Automatic 4WD is well equipped and includes these features and benefits: Cloth Rear Seat with Storage Package, Elevation Premium Package (All-Weather Floor L...

O'Fallon Buick GMC Cars for Sale

2026 GMC Sierra

2019 CHEVROLET Impala

2023 FORD F-150

2018 CADILLAC ATS

2023 GMC Yukon

2026 BUICK Envista

2026 GMC Sierra

2026 GMC Sierra

2019 NISSAN Armada

2024 GMC Sierra

2026 GMC Sierra

2017 FORD F-150

2019 CHEVROLET Camaro

2026 GMC Sierra

2026 GMC Sierra

2026 GMC Sierra

2023 BUICK Envision

2026 GMC Sierra

2026 GMC Sierra

2026 GMC Sierra

2026 GMC Sierra

2026 GMC Sierra

2026 BUICK Envista

2026 GMC Sierra

2026 GMC Sierra