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*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.
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New and used
2026 GMC Sierra 2500 AT4 trucks
for sale
near
March ARB, CA
- 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 2500 AT4
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
I personally had a great experience at Hatfield.
I personally had a great experience at Hatfield. No haggling over small stuff, no arguing or fighting over numbers. I highly recommend Hatfield.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
positive sales person reasonable price
positive sales person knowledgable, positive kind will go back.. location great ease of access. price taxes dealer prep well explaine4d.. i will re check lot one week new inventory..thanks for opportunity
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Temecula Valley has great people working there.
Temecula Valley has great people working there. my wife and I had a pleasure of dealing with Peter, We have been shopping for SUV probably for about two months dealt with every gmc and Chevy dealer around San Diego. peter was by far the best he is polite patient very knowledgeable about every car ,was very impressive.when u looked at Peter you know he loves his job and wants and fights for the best deal. Temecula valley has by far the the best warranty’s I’ve seen you have to check them out Thanks again the Desrosiers
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Temecula Valley Buick GMC is a great auto dealership.
Temecula Valley Buick GMC is a great auto dealership. Service department was excellent and Mike R., is always great and explains the service jobs in detail. Awesome job experience and would recommend them to others.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Alex is great!
Alex was a pleasure to work with throughout the process. When I expressed my concerns about covid he kindly agreed to wear a mask and arranged for the process to be conducted outdoors as much as possible. He also expedited the sale process because he understood that I needed to drive the vehicle back to the SF Bay Area that day. Lastly, he was very knowledgeable about the Suburban that I purchased, and provided me with a lot of great information about its features and benefits. I wouldn't hesitate to work with Alex again, or to recommend him to others.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Best Truck buying Experience
Mark Christopher GMC is an amazing Auto dealership. No sales pressure and terrible prices. Johnathon Villa was an outstanding salesman that helped us get a 2022 Canyon Elevation. He took extra steps to help us find the perfect truck for us. We drove over an hour. And so glad we did. Highly recommend. And I want to say thanks again to Johnathon for making the experience great.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
First time buyer 12/12/2024 .
First time buyer 12/12/2024 ..JP was able to help me with all my questions and needs to purchase my new sierra pro ..thank you JP you're awesome
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Sales personnel knowledgeable and helpful.
Sales personnel knowledgeable and helpful. Not close by but would definitely discuss a car purchase soon.
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
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Oil change////////////////////////////////////////
Great work Ryan! Very thorough in providing exceptional customer service thanks for resuming wash activities after the abundance of rain this season
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Excellent experience
Very easy paperwork and pleasant staff the sales lady Michelle was very helpful with the process also Gary the salesperson is a nice and will help out when needed
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Pleasant people, great service.
We've had only the best service with Diamond Hills. Everyone we have come in contact with over the last 2 years has been pleasant, courteous and helpful.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
I had probably the easiest, most hassle-free experience
I had probably the easiest, most hassle-free experience buying my new truck. Kaylynn was very accommodating and found my perfect truck. I couldn't be happier!
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Michael Jacobs made the car buying process seamless when
Michael Jacobs made the car buying process seamless when I purchased my 2025 Yukon AT4 diesel. He was extremely helpful and polite😊 Rod Shelffo in Finance was awesome to work with as well!
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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.
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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.
