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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 1500 SLT trucks
for sale
near
Matherville, IL
- 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 SLT
Vehicle information
Features
Reviews
Salesman great but no financing .
Salesman great but no financing . I would have bought the rogue! Thank you for all your help.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Happy Customer
I had a very good experience, had a very nice salesman by the name of Branson.B, he helped me out & got me into a vehicle that I like, he was very helpful, & upfront. So I will be recommending family & friends to this Davenport, IA location .
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Dealer offered a fair price for my used trade-in and gave
Dealer offered a fair price for my used trade-in and gave me a fair price on the used truck that I bought.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Branson Banks - superb salesman!
My salesman Branson Banks was supurb! He worked very hard to find the perfect vehicle for me! I definitely recommend Green Buick GMC for the purchase of your next vehicle - tell 'em Bert sent ya!!!
Vehicle information
Features
Reviews
We purchased a 2023 GMC Acadia with the assistance of
We purchased a 2023 GMC Acadia with the assistance of John Thomas, Sales & Leasing /JT and Max in Finance. To start, John made the process painless and easy. He answered every question we had. He was very patient and kind. We had a wonderful experience. Max with Finance was very nice. He also answered all of our questions as well as being patient and kind. Both of these gentlemen provided excellent customer service. You could tell they both enjoyed their job. Thank you so much!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Service
Appreciate the Service Advisor. Understood communication and got the problems resolved.
Vehicle information
Features
Reviews
Best Service and Highest Integrity in the Business
After several years of helping me keep my 2013 Tahoe rolling smoothly down the highway; Jay, Randy and the Key Auto Mall Team helped me select my next ride -- a 2023 Yukon XLT AT4. Customer service is first and foremost with this team. I recommend all my friends and family to give them a call. I appreciate their hard work and will continue to bring my vehicle for service because that department rocks too!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great car for me
Dan Sharp found the perfect car for me with all the features I wanted. Buying was a positive experience. After I got it, I found additional features that are really helpful.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Prompt service!!
Very prompt and courteous. I had my car back in no time. Just the way I like it.
Vehicle information
Features
Reviews
Ask for Jay.
We couldn't be more happy with are recent purchase of a GMC Denali. Thanks to Jay for making the experience very easy and quick. Less than 2 hours and we leaving in are new truck.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Vehicle information
Features
Reviews
thank you Brain Magee, a job well done
Very friendly, took his time explaining all the settings on my new Buick Envisvion.Thank you Brian Magee for all your help, Gog knows I needed it. Will send friends to you when they need a new car.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My experience with this dealership was great very helpful
My experience with this dealership was great very helpful haven’t purchased yet still working on that
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Highly Recommend Key Auto employees ...knowlegable
Always treated with respect fairly and well. Last service told all how good I felt about how great I was treated. Good place to go for purchase and service.
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About the 2026 GMC Sierra 1500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 17
- Transmission
- 10-Speed A/T
- Engine
- 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 1500 SLT cost?
The 2026 GMC Sierra 1500 SLT price depends on optional features. Prices typically start at $54,900.
What is the MPG of the 2026 GMC Sierra 1500 SLT?
The 2026 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 20 MPG on the highway for a combined rating of 17 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 SLT?
The 2026 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:
SLT (3 styles)
| Style | ||
|---|---|---|
| 2WD Crew Cab 147" SLT | 4WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT |
| Inventory price | ||
| Starting at $54,900 | Starting at $58,000 | Starting at $58,700 |
| Combined MPG | ||
| 17 | 16 | 16 |
| Engine | ||
| 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) | 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.
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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.
