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New and used
2026 GMC Sierra 1500 AT4 trucks
for sale
near
Old Jefferson, LA
58 matches
30 miles from 70817
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 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9054
VIN: 1GTUUEE84TZ118960
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Ross Downing GMC of Gonzales review
Easy to set up appointment for service.
Easy to set up appointment for service. The facility is extremely clean. Car drop off was seamless and car was ready when the service staff said it would be. I was late picking up the car, so they made arrangements for me to pick it up from the showroom which was very kind considering it was the weekend. The staff took care of billing to my flleet company.
New
2026 GMC Sierra 1500 AT4
$66,600
MSRP $73,600
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9033
VIN: 1GTUUEE84TZ118957
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Ross Downing GMC of Gonzales review
My experience here was great & fast.
My experience here was great & fast. I do have to bring the car back for a little work but they said they can fix it
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9036
VIN: 1GTUUEE86TZ117504
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Ross Downing GMC of Gonzales review
They handled everything even delivered my vehicle to me,
They handled everything even delivered my vehicle to me, they went above and beyond what was needed, everything was top notch and everyone was straight forward with me
New
2026 GMC Sierra 1500 AT4
$66,725
MSRP $73,725
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9135
VIN: 1GTUUEE80TZ155519
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Ross Downing GMC of Gonzales review
My experience at Ross Downing was impeccable!
My experience at Ross Downing was impeccable! I have purchased ?several? cars, but this transaction was indeed faultless. Miss Kisha Cushenberry is my car saleswoman - a true professional!
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9037
VIN: 1GTUUEE86TZ118829
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
Reviews
Ross Downing GMC of Gonzales review
Jay Drago was my service advisor, very professional and
Jay Drago was my service advisor, very professional and courteous. Kept me informed about my vehicle. I would love for to be my advisor on each of my visits. Would recommend this dealership
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9035
VIN: 1GTUUEE86TZ117437
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$66,600
MSRP $73,600
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9067
VIN: 1GTUUEE88TZ132361
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$68,495
MSRP $75,495
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 6.2L V8
Stock #: 3-G9020
VIN: 1GTUUEEL6TZ117099
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9028
VIN: 1GTUUEE8XTZ119000
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$67,220
MSRP $74,220
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9143
VIN: 1GTUUEE84TZ155930
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9077
VIN: 1GTUUEE89TZ132529
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$62,235
MSRP $69,235
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9142
VIN: 1GTUUEE84TZ153210
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, USB Port
Exterior:
Alloy Wheels, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$62,730
MSRP $69,730
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: GXD
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9128
VIN: 1GTUUEE85TZ153104
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, USB Port
Exterior:
Alloy Wheels, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Titanium
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9051
VIN: 1GTUUEE83TZ121249
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9063
VIN: 1GTUUEE85TZ119017
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$66,600
MSRP $73,600
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9065
VIN: 1GTUUEE86TZ132469
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$62,730
MSRP $69,730
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9132
VIN: 1GTUUEE81TZ153701
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, USB Port
Exterior:
Alloy Wheels, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9041
VIN: 1GTUUEE88TZ118864
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$68,764
MSRP $75,764
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9137
VIN: 1GTUUEE83TZ155577
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 AT4
$67,095
MSRP $74,095
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Titanium
Int. color: Jet Black
Drivetrain: Four-wheel Drive
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 3.0L I6
Stock #: 3-G9050
VIN: 1GTUUEE8XTZ121054
Features
Convenience:
Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Rain Sensing Wipers, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
About the 2026 GMC Sierra 1500 AT4
AT4 shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 23
- 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 AT4 cost?
The 2026 GMC Sierra 1500 AT4 price depends on optional features. Prices typically start at $66,800.
What is the MPG of the 2026 GMC Sierra 1500 AT4?
The 2026 GMC Sierra 1500 AT4 offers up to 21 MPG in city driving and 24 MPG on the highway for a combined rating of 23 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 AT4?
The 2026 GMC Sierra 1500 AT4 compares to and/or competes against the following vehicles:
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 147" AT4 | 4WD Crew Cab 157" AT4 |
| Inventory price | |
| Starting at $66,800 | Starting at $67,300 |
| Combined MPG | |
| 23 | 23 |
| Engine | |
| 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 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.
58 matches
Clear
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
26 listings starting at $50,555
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