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New and used
2026 GMC Sierra 2500 AT4 trucks
for sale
near
Southport, IN
- 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.
Vehicle information
Features
Reviews
Jorge gave us a great experience with buying our car.
Jorge gave us a great experience with buying our car. He was helpful and knowledgeable in getting us into the car we wanted within our budget. We are senior citizens with limited tech knowledge but he guided us through the process and helped us understand the options on our vehicle.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Very good family atmosphere.
Very good family atmosphere. Enjoyed the level of experience as well. Extremely helpful training me on all the latest technologies that came with my new car.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Shout out to Stas Mateev at Rayskillman Buick GMC, he was
Shout out to Stas Mateev at Rayskillman Buick GMC, he was the absolute BEST!!! He told me he was going to get me the suv I wanted & he did exactly what he said!!! & I wasn?t there all day !!! He?s the man ????
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Great Service at the Service Department
Amazing service! We?re regular customers for over 10 years. We purchase all new vehicles and get all auto services here at Ray Skillman GMC.
Vehicle information
Features
Reviews
Jorge a A+ job and very respectful He meet all the
Jorge a A+ job and very respectful He meet all the needs for me Very quick and understanding
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Best buying experience I have ever had.
Best buying experience I have ever had. Informative, nice, clean facility amazing purchase packages! I love my new truck and feel like I received the best deal out there! Everyone has been available for any questions I had before, during and after my purchase.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
The customer service was amazing and I will come back for
The customer service was amazing and I will come back for sure thank you so much and I will spread it around how amazing it was Evan miller was very I understanding he worked with me on the Price.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
prairden@sbcglobal.netthis
I needed a checkup for a long vacation drive. As always, the service was excellent.
Vehicle information
Features
Reviews
Moe was super helpful with helping me find my perfect
Moe was super helpful with helping me find my perfect first car and worked to help me get the best deal! He was an absolute treat to work with! Gary was so nice as well! He helped us to figure out what we needed and was very personable.
Vehicle information
Features
Reviews
We had a great experience with Javy Labrador and the
We had a great experience with Javy Labrador and the dealership when we purchased our first new car! He was very helpful in explaining the process and answering our questions. We are so excited to drive off in our brand new Buick! Thanks, Javy!
Vehicle information
Features
Reviews
Javy Labrador , Jeff and Gary did a fabulous job helping
Javy Labrador , Jeff and Gary did a fabulous job helping me get the car. FABULOUS. Would highly recommend, very highly, recommend working with these gentlemen
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
The service was very good and the staff was knowledgeable
The service was very good and the staff was knowledgeable and friendly. I was notified when to come pick up my car. I was offered the opportunity to wait in their lounge where they provide a variety of food and drinks for their customers.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Proactive Service
It started when Matt saw me drive in to the service bay and walked over to greet me with a smile. I had a question about our navigation screen that honestly was driving me nuts—he showed me how to fix it in a jiffy. We were in for a simple oil change, but Matt also after checking our tires warned us that new tires would be coming due and provided a few estimates so we could prepare for that upcoming expense. We always feel special at Skillman because of members like Matt.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
excellent service.
excellent service. I highly recommend that you talk to Anthony Barton for your service needs.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Transmission issue.
Transmission issue. Got into service immediately. Comfortable waiting area. Professional and knowledgeable. Made me feel welcome. Long time Dellen customer.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
This is a great place for any vehicle service.
This is a great place for any vehicle service. Always call before they start to make repairs and let you know the cost.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
It was a very good experience.
It was a very good experience. The service was quick. The service care people were pleasant and professional. I would recommend stoops as a good option for care service.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Excellent service.
Excellent service. They were very easy to work with and everything prepared when I picked up the truck.
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About the 2026 GMC Sierra 2500 AT4
AT4 shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 0
- Transmission
- 10-Speed A/T
- Engine
- 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 2500 AT4 cost?
The 2026 GMC Sierra 2500 AT4 price depends on optional features. Prices typically start at $71,600.
What are some similar vehicles and competitors of the 2026 GMC Sierra 2500 AT4?
The 2026 GMC Sierra 2500 AT4 compares to and/or competes against the following vehicles:
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 172" AT4 | 4WD Crew Cab 159" AT4 |
| Inventory price | |
| Starting at $71,800 | Starting at $71,600 |
| Combined MPG | |
| 0 | 0 |
| Engine | |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel 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 2500 trims
-
GMC Sierra 2500 2026 Denali
24 listings starting at $74,385
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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.
