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New and used
2026 GMC Sierra 1500 trucks
for sale
near
St. Gabriel, LA
125 matches
30 miles from 70776
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
$66,345
MSRP $74,095
$250 price drop
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Titanium
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
22-26
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: 3-G9051
VIN: 1GTUUEE83TZ121249
Features
Convenience:
Adaptive Cruise Control, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch, 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 Pro
$39,220
MSRP $46,970
$750 price drop
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Rear-wheel Drive
MPG:
18-21
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: L V GDI
Stock #: 3-G9000
VIN: 1GTRHAED7TZ105961
Features
Convenience:
Keyless Entry, Keyless Start
Entertainment:
Apple CarPlay®, Bluetooth®, USB Port
Exterior:
Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
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
$66,769
MSRP $74,519
$750 price drop
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Titanium
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
22-26
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: 3-G9156
VIN: 1GTUUEE82TZ157692
Features
Convenience:
Adaptive Cruise Control, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch, 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 SLT
$57,885
MSRP $66,135
$750 price drop
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Summit White
Int. color: Black
Drivetrain: Rear-wheel Drive
MPG:
16-20
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 5.3L V8 16V GDI OHV
Stock #: 3-G9148
VIN: 3GTPHDEDXTG117630
Features
Convenience:
Adaptive Cruise Control, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch, 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
$66,345
MSRP $74,095
$250 price drop
Ross Downing GMC of Gonzales
Vehicle information
Ext. color: Sterling
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
22-26
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: 3-G9070
VIN: 1GTUUEE81TZ130645
Features
Convenience:
Adaptive Cruise Control, Heated Seats, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch, 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
There are additional matching cars outside your search area.
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As a benefit to some of our dealer customers, we display their listings first.
New
2026 GMC Sierra 1500 AT4X
$84,385
MSRP $84,385
Rainbow Northshore GMC
Vehicle information
Ext. color: Sterling
Int. color: Obsidian Rush
Drivetrain: Four-wheel Drive
MPG:
19-20
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 6.2L V8 16V GDI OHV
Stock #: G27424
VIN: 3GTUUFEL0TG108596
Features
Convenience:
Adaptive Cruise Control, Heated Steering Wheel, Navigation System, Remote Start
Entertainment:
Bluetooth®, Premium Sound System, Satellite Radio
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Backup Camera, Brake Assist, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 Pro
$41,650
MSRP $48,900
$750 price drop
Legacy GMC
Vehicle information
Ext. color: Summit White
Int. color: Jet Black
Drivetrain: Rear-wheel Drive
MPG:
18-20
Fuel type: Gasoline
Transmission: Automatic
Engine: TurboMax 2.7L I-4 gasoline direct injection, DOHC, variable valv
Stock #: 26G1283
VIN: 1GTPHAEK4TZ116065
Features
Convenience:
Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Stability Control
New
2026 GMC Sierra 1500 SLT
$52,260
MSRP $61,260
$3,000 price drop
Crown Buick GMC
Vehicle information
Ext. color: Gray
Int. color: Jet Black
Drivetrain: Rear-wheel Drive
MPG:
16-20
Fuel type: Gasoline
Transmission: 10-Speed Automatic
Engine: 5.3L V8 16V GDI OHV
Stock #: 267352
VIN: 3GTPHDED8TG108036
Features
Convenience:
Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Tow Hitch
Safety:
Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$57,115
MSRP $65,115
$3,000 price drop
Legacy Westbank Buick GMC
Vehicle information
Ext. color: SILVER
Drivetrain: Rear-wheel Drive
MPG:
23-29
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
Stock #: 26W4255
VIN: 1GTPHDE88TZ108492
Features
Convenience:
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, Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$60,635
MSRP $68,135
$6,500 price drop
Mossy of Picayune - Chevrolet GMC
Vehicle information
Ext. color: Black
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
15-19
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: 112643
VIN: 1GTUUDE83TZ112643
Features
Convenience:
Adaptive Cruise Control, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio, USB Port
Exterior:
Alloy Wheels, Tow Hitch
Safety:
Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$67,340
MSRP $65,590
Mossy GMC
Vehicle information
Ext. color: Onyx Black
Int. color: Jet Black, Perforated Leather-Appointed Front Outboard Seat Trim
Drivetrain: Four-wheel Drive
MPG:
15-19
Fuel type: Gasoline
Transmission: Automatic
Engine: EcoTec3 5.3L V-8 gasoline direct injection, variable valve contr
Stock #: DD6000
VIN: 3GTUUDED7TG105031
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:
Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 SLT
$53,790
MSRP $61,790
$750 price drop
Legacy GMC
Vehicle information
Ext. color: GRAY
Drivetrain: Rear-wheel Drive
MPG:
23-29
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
Stock #: 26G1224
VIN: 1GTPHDE81TZ102940
Features
Convenience:
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, Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, LED Headlights, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 Denali
$69,490
MSRP $78,490
$3,000 price drop
Crown Buick GMC
Vehicle information
Ext. color: Gray
Int. color: Jet Black
Drivetrain: Four-wheel Drive
MPG:
15-19
Fuel type: Diesel
Transmission: 10-Speed Automatic
Engine: 3.0L I6 24V DDI DOHC Turbo Diesel
Stock #: 267321
VIN: 1GTUUGE84TZ117769
Features
Convenience:
Adaptive Cruise Control, Heated Steering Wheel, Keyless Entry, Keyless Start, Navigation System, Remote Start
Entertainment:
Android Auto®, Apple CarPlay®, Bluetooth®, Premium Sound System, Satellite Radio
Exterior:
Alloy Wheels, Sunroof/Moonroof, Tow Hitch
Safety:
Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
Seating:
Leather Seats, Memory Seat
New
2026 GMC Sierra 1500 Pro
$45,915
$750 price drop
Ross Downing GMC Cadillac
Vehicle information
Ext. color: Summit White
Int. color: Black
Drivetrain: Four-wheel Drive
MPG:
17-19
Fuel type: Gasoline
Transmission: 8-Speed Automatic
Engine: 2.7L I4 16V GDI DOHC Turbo
Stock #: 2-G9059
VIN: 1GTPUAEK1TZ138102
Features
Convenience:
Keyless Entry, Keyless Start, Remote Start
Entertainment:
Apple CarPlay®, Bluetooth®, USB Port
Exterior:
Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Brake Assist, Lane Departure Warning, Stability Control
New
2026 GMC Sierra 1500 AT4
$65,955
MSRP $73,955
$750 price drop
Legacy GMC
Vehicle information
Ext. color: Summit White
Int. color: Jet Black w/Kalahari Accents
Drivetrain: Four-wheel Drive
MPG:
21-24
Fuel type: Diesel
Transmission: Automatic
Engine: Duramax 3L I-6 diesel direct injection, DOHC, variable valve con
Stock #: 26G1239
VIN: 1GTUUEE8XTZ107459
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®, Premium Sound System, USB Port, WiFi Hotspot
Exterior:
Alloy Wheels, Tow Hitch, Tow Hooks
Safety:
Automatic Emergency Braking, Backup Camera, Blind Spot Monitor, Brake Assist, LED Headlights, Lane Departure Warning, Rear Cross Traffic Alert, Stability Control
Seating:
Leather Seats, Memory Seat
GMC Sierra 1500 prices by year
| Model year | Prices from | Deals |
|---|---|---|
| 2025 GMC Sierra 1500 | $39,570 | 1 Good deal |
| 2023 GMC Sierra 1500 | $35,733 | 13 Good deals |
*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.
125 matches
Clear
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2026 GMC Sierra 1500 by body style
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