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New and used
2026 GMC Sierra 1500 AT4X trucks
for sale
near
O Fallon, MO
44 matches
30 miles from 63368
Be the first to know!
Est.
$400
/mo*
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
New
2026 GMC Sierra 1500 AT4X
$70,111
MSRP $84,290
$4,132 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260946
VIN: 3GTUUFEL4TG256654
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Dave Sinclair Buick GMC review
Nicki was wonderful, I will recommend her to everyone I
Nicki was wonderful, I will recommend her to everyone I know that are in the market for buying a vehicle. Jarrod was also fantastic to work with. Both very personable and made the process very pleasant when it had been made dreadful from trying to deal with other salesmen at other dealerships. These 2 were excellent. I've never had a better car buying experience. I'd been to 4 other dealers who wouldn't budge on price for the same vehicle. I was able to drive my brand-new car off the lot for $6000 less than the competitors offered WITHOUT a single haggle!
2026 GMC Sierra 1500 AT4X review
It was such a good truck honstly the greatest thing I
It was such a good truck honstly the greatest thing I have ever drove in my entire life I am so happy that I have been blessed with this being my first ever car
New
2026 GMC Sierra 1500 AT4X
$69,751
MSRP $83,890
$4,129 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260623
VIN: 3GTUUFEL1TG178186
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Dave Sinclair Buick GMC review
Nikki was extremely professional and knowledgeable about
Nikki was extremely professional and knowledgeable about the trucks. The buying experience could not have been easier, and I never left South Carolina! My new Denali Ultimate gets delivered today at 5!
New
2026 GMC Sierra 1500 AT4X
$73,941
MSRP $84,385
$4,132 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Coastal Dune
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: CT260637
VIN: 3GTUUFELXTG179840
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Dave Sinclair Buick GMC review
Work was done on Schedule, actually completed prior to
Work was done on Schedule, actually completed prior to estimated completion time. Both my Service Advisor Jerry and the Tech, came to me afterwards to make sure everything was Satisfactory. Thank You
New
2026 GMC Sierra 1500 AT4X
$70,197
MSRP $84,385
$4,132 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Coastal Dune
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260519
VIN: 3GTUUFEL2TG167729
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Dave Sinclair Buick GMC review
Great team!
Great team! I Was a walk-in. Friendly helpful staff - went into look at a Canyon. I found the truck online. Salesman TJ helped with locating the truck and brought it up to the showroom. Even washed it prior to me seeing it ! Great financial staff. Quick and easy!! I Will return in the future for more vehicles.
New
2026 GMC Sierra 1500 AT4X
$70,557
MSRP $84,785
$4,135 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260971
VIN: 3GTUUFELXTG260790
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Dave Sinclair Buick GMC review
Engine light came on, rough shifting, Adam in Service
Engine light came on, rough shifting, Adam in Service dept fit my truck in for diagnostics within a week. Tech found bad coil, replaced and repaired, also suggested new wires and battery was needing to be replace really low crank, all work completed and again on the road after 310,000 miles. I have had only good experiences with the service department staff and techs. Sometimes it cost some money but its a machine and if you take care or it, it will last.
New
2026 GMC Sierra 1500 AT4X
$70,557
MSRP $84,785
$4,135 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260974
VIN: 3GTUUFEL8TG260562
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$70,557
MSRP $84,785
$635 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Sterling Metallic
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T261011
VIN: 3GTUUFEL8TG260786
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$69,491
MSRP $82,490
$3,119 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
19-20
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3.0L Turbo-Diesel I6
Stock #: T260606
VIN: 3GTUUFE8XTG177047
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$95,583
MSRP $84,785
$635 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: CT260967
VIN: 3GTUUFEL6TG260561
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$70,557
MSRP $84,785
$4,135 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Sterling Metallic
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T261010
VIN: 3GTUUFEL3TG260792
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$69,751
MSRP $83,890
$4,129 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260649
VIN: 3GTUUFEL8TG166665
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$69,851
MSRP $82,890
$3,122 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
19-20
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3.0L Turbo-Diesel I6
Stock #: T260944
VIN: 3GTUUFE84TG256147
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$74,301
MSRP $84,785
$4,135 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: CT260988
VIN: 3GTUUFEL9TG265964
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$70,692
MSRP $84,935
$4,137 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Volcanic Red Tintcoat
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260966
VIN: 3GTUUFEL4TG260784
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$70,926
MSRP $84,084
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
19-20
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3.0L Turbo-Diesel I6
Stock #: T261069
VIN: 3GTUUFE8XTG243130
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$69,851
MSRP $82,890
$3,122 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Sterling Metallic
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
19-20
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3.0L Turbo-Diesel I6
Stock #: T260945
VIN: 3GTUUFE84TG256150
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$81,050
MSRP $84,290
$4,132 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: CT260957
VIN: 3GTUUFEL0TG256506
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$70,557
MSRP $84,785
$4,135 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T260970
VIN: 3GTUUFELXTG260787
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$69,046
MSRP $81,995
$3,114 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
19-20
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3.0L Turbo-Diesel I6
Stock #: T260574
VIN: 3GTUUFE86TG173190
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4X
$72,172
MSRP $86,580
$4,149 price drop
Dave Sinclair Buick GMC
Vehicle information
Ext. color: Summit White
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
14-16
Fuel type: Gasoline
Transmission: Automatic
Engine: 6.2L
Stock #: T261017
VIN: 3GTUUFELXTG159684
Features
Convenience:
Adaptive Cruise Control, Cooled Seats, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Power Folding Mirrors, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, HomeLink, Premium Sound System, Satellite Radio, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
About the 2026 GMC Sierra 1500 AT4X
AT4X shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 19
- Transmission
- 10-Speed A/T
- Engine
- 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
How much does the 2026 GMC Sierra 1500 AT4X cost?
The 2026 GMC Sierra 1500 AT4X price depends on optional features. Prices typically start at $79,600.
What is the MPG of the 2026 GMC Sierra 1500 AT4X?
The 2026 GMC Sierra 1500 AT4X offers up to 19 MPG in city driving and 20 MPG on the highway for a combined rating of 19 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2026 GMC Sierra 1500 AT4X?
The 2026 GMC Sierra 1500 AT4X compares to and/or competes against the following vehicles:
Is the 2026 GMC Sierra 1500 AT4X reliable?
The 2026 GMC Sierra 1500 has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.
75% of drivers recommend this car
Rating breakdown (out of 5):
- Comfort
- 4.0
- Interior
- 4.0
- Performance
- 4.2
- Value
- 3.5
- Exterior
- 4.2
- Reliability
- 4.5
AT4X (1 style)
| Style |
|---|
| 4WD Crew Cab 147" AT4X |
| Inventory price |
| Starting at $79,600 |
| Combined MPG |
| 19 |
| Engine |
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
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2026 GMC Sierra 1500 AT4X in Saint Charles, MO
1 Great Deal out of 77 listings starting at $69,046
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2026 GMC Sierra 1500 AT4X in St. Charles, MO
1 Great Deal out of 77 listings starting at $69,046
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2026 GMC Sierra 1500 AT4X in Chesterfield, MO
1 Great Deal out of 42 listings starting at $69,046
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2026 GMC Sierra 1500 AT4X in Clarkson Valley, MO
1 Great Deal out of 47 listings starting at $69,046
GMC Sierra 1500 trims
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GMC Sierra 1500 2026 Elevation
74 listings starting at $41,046
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GMC Sierra 1500 2026 SLT
54 listings starting at $50,354
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GMC Sierra 1500 2026 Pro
48 listings starting at $28,983
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GMC Sierra 1500 2026 Denali
46 listings starting at $61,736
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.