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New and used
2026 GMC Sierra 1500 AT4 trucks
for sale
near
Lilburn, GA
- 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
Vehicle information
Features
Reviews
Scott S.
Scott S. was a great help to me with the sales team. Met Scott for a test drive, and he was very knowledgeable and helpful without being pushy. The service department had to work on the truck I was interested in before it was ready to be sold, and he kept me updated and informed throughout the process. Although I ultimately bought a different vehicle, it certainly had nothing to do with Scott. Would happily reach out to him in the future or recommend him to anyone else in the market.
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Features
Vehicle information
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Vehicle information
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New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Andres was great and very helpful.
Andres was great and very helpful. Although we didn't purchase we would definitely work with him again. We highly recommend him. He's honest and not pushy.






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
My experience was excellent with Ted.
My experience was excellent with Ted. The videos from the technician ere very informative. My son-in-law had a previous car worked on here and also purchased a new one from Ellis GMC.

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Very nice and knowledgeable one of the best experience
Very nice and knowledgeable one of the best experience I’ve ever had at a dealership, hands-down
Vehicle information
Features
Reviews
My experience was informative and the repairs were
My experience was informative and the repairs were completed in no time. I have been taking my car there for 9 years and they still display the same great customer service!

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I always receive excellent service from Colonial.
I always receive excellent service from Colonial. Last time they stressed how important fuel injector cleaner is for my vehicle, however this time they didn't mention the cleaner and when I brought it up they said they would take care of that next time. How important is it really? Just left me wondering and thought I would mention it.
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Reviews
We have always been happy with the Loganville dealership
We have always been happy with the Loganville dealership even before they move from Lawrenceville. Honest and tells you like it really is. They get the work done right and on time the first time.
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Features
Reviews
My salesman, Dave, was outstanding from the very
My salesman, Dave, was outstanding from the very beginning of the contact and sale. I believed he was honest and represented the company well. He and I agreed on a price over the phone, and I accepted it. Before the purchase was completed, I was engaged by another dealer with a lower price. However, I chose to stay with Dave because of his integrity and my belief that a deal is a deal.

New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Nolan Knox from Carl Black, Roswell, was so easy to work
Nolan Knox from Carl Black, Roswell, was so easy to work with in purchasing our new Sierra 1500 denali ultimate. Nolan was so professional and knowledgeable as he answered all our questions. I highly recommend Nolan Knox. Thank you for making this whole purchasing event less stressful. Charles & Deb
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New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I was looking to upgrade my truck and met Nolan Knox who
I was looking to upgrade my truck and met Nolan Knox who helped me look for the right truck. He was patient as I tried to make the best decision for me. He responded to all my questions even when he was off. I would recommend Nolan to help anyone with car or truck buying from Carl Black GMC of Roswell.






New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
We purchased a 2025 GMC Yukon from Nolan Knox with Carl
We purchased a 2025 GMC Yukon from Nolan Knox with Carl Black. Nolan was great, kept us well informed. The purchase was simple and painless. We will purchase our next vehicle from Nolan and Carl Black.






New
2026 GMC Sierra 1500 AT4
Vehicle information
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New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Vehicle information
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New
2026 GMC Sierra 1500 AT4
Vehicle information
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GMC Sierra 1500 prices by year
Model year | Average price | Deals |
---|---|---|
2025 GMC Sierra 1500 AT4 | $68,408 | 2 Good deals |
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.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
61 listings starting at $47,455
-
GMC Sierra 1500 2026 Denali
43 listings starting at $64,935
-
GMC Sierra 1500 2026 SLT
31 listings starting at $58,054
-
GMC Sierra 1500 2026 Pro
27 listings starting at $40,390
-
GMC Sierra 1500 2026 AT4
24 listings starting at $65,010
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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.