Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
New and used
2026 GMC Sierra 1500 SLT trucks
for sale
near
Doon, IA
- 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
Excellent dealership to work with.
Excellent dealership to work with. Would definitely use them in the future. Smooth transaction and process. Love my new Yukon xl. Great selection of vehicles available
It was such a good truck honstly the greatest thing I
It was such a good truck honstly the greatest thing I have ever drove in my entire life I am so happy that I have been blessed with this being my first ever car
Used
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I came back!
I came back! This is the third time I?ve purchased a vehicle from Hyundai! I absolutely love this place! I worked with Joe this time around, and I have to say this guy is awesome! He?s so incredibly kind and down to earth. He really wants to help you find what you *NEED.* This deal I worked with Joe, Steve, Phil and of course Karen! I love you all. Such incredible people. Yes, they are a car dealership. Yes, they sell you cars. I initially went in looking for a used bigger vehicle. I was given the option but ultimately Joe showed me new was going to be the way to go. Payment, interest rates and warrant all being taken accounted for. He showed me my budget friendly vehicle and the second I dismissed it for personal reasons he basically tossed the keys back in the building and got me what suited my growing family better! I got the deal of the year. Steve (finance) and I got down to business and he laid it out plainly. He got me everything I asked for and I am so incredibly happy. Phil helped me secure my top quality extras I factored into my deal. I highly recommend Joe and this whole team. I will be back once this baby is paid off
Vehicle information
Features
Reviews
I can say I enjoyed buying a car from Covert.
I can say I enjoyed buying a car from Covert. Starting with Jud, every person made me feel more than just a customer buying a car. Each staffer showed genuine interest in me getting what I wanted. I wasn't just a commission or one step closer to meeting the monthly sales goals. And, that is the best reason to buy a car from you. So, thank you.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The sales team was very knowledgeable and easy to work
The sales team was very knowledgeable and easy to work with, even in the snow storm (pulling out a car to let me test drive that I saw after text drive of the Trax) A big thanks to Craig Mccarron
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My interactions with Koby has been extremely positive!
My interactions with Koby has been extremely positive! I had some credit challenges that made me believe that buying a new car was unachievable. Koby was able to work some magic and make it happen. I highly recommend this dealership and Koby. I will be a return costumer.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Drew was there from our first call until we went home
Drew was there from our first call until we went home with a new Chevy. He worked hard to get us where we needed to be financially. Explained everything we needed to know about the vehicle we purchased. Drew was also there for some follow up calls, very patient and kind. We will definitely return for our next vehicle
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Went in looking for a new ride, drove out driving a new
Went in looking for a new ride, drove out driving a new 2026 equinox. Was fast friendly and worry free. Was treated liked family and would definitely buy from them again and recommend anyone looking for a new ride they should stop by and give Van's a try
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My sales person at Castle Chevrolet was Tony Twall.
My sales person at Castle Chevrolet was Tony Twall. He was awesome to work with. He answered all my questions and was very knowledgeable. I have to say that this was the best vehicle buying experience I have ever had. My next purchase will be with the Castle dealership in McHenry IL and I will ask for Tony to be my sales person.
Used
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had a great experience buying both of my vehicles here.
I had a great experience buying both of my vehicles here. The staff was friendly and professional they made me feel like family. I felt well taken care of. I would highly recommend this dealership to everyone.
New
2026 GMC Sierra 1500 SLT
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.
Vehicle information
Features
Reviews
Love Jacob!
Love Jacob! He might be my favorite person at the whole dealership. As soon as he sees me drive up, he walks up with a smile on his face.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Message sent directly to salesperson: Hanna, I will be
Message sent directly to salesperson: Hanna, I will be recommending YOU whenever I know of someone looking for a vehicle. When someone is making a major purchase, like buying a car, it is so important to have a sales person with genuine integrity and relentless focus on the customer. Your communication throughout the process has been stellar; always keeping me updated. I appreciated that you not only focused on the sale, but also on doing proactive work to facilitate a smooth transaction on a specific day, with my family's needs in mind. That 'extra' means a lot!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Everett Chevrolet service department is always efficient
Everett Chevrolet service department is always efficient and tells you exactly what’s service is needed for your vehicle. Tommy is also very good at telling you up front about the cost. We always use this dealership for all our services.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The guys where straight forward and even drive the car
The guys where straight forward and even drive the car home for me as it was late and dealership was already closed by the time we where all set and I came with my second car
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Greeted well and by name.
Greeted well and by name. Service department found my unused voucher for service and I payed zero to be treated very well. Happy and friendly and knowledgeable folks spent their time helping ME. Mechanic?s video extremely helpful.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My name is Jack Walton, I’m had the best experience I am
My name is Jack Walton, I’m had the best experience I am 77 years old and Al Gee filled all our needs. Great service,great staff from sales to finance. I would recommend Also Gee, he was s simply the he best. Great salesman.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I worked with Jake Thompson and if there was any heavy
I worked with Jake Thompson and if there was any heavy lifting to do during the sales process, he did it. It was no doubt the easiest purchase of a car that I have ever made. Thanks Jake!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I just wanted to say Tim Hoffman in service exceeded my
I just wanted to say Tim Hoffman in service exceeded my expectations. I bought a 2016 CT6 from a dealership in Crystal Lake. I put 300 miles on the car and noticed something was not right with Transmission good thing I had the extended warranty. Tim coordinated everything it was a big job and he coordinated everything with warranty company and kept me updated on status. Thanks Tim one of the best dealership experiences I have had with a dealer. Al B
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Mostly always a heart breaker!
Mostly always a heart breaker! Have stated this many times before...to no avail! No initial person assigned to place a paper mat on your floor and collect your keys or move your vehicle to a unconscious location..no service rep to greet you with your request etc etc...
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:
Is the 2026 GMC Sierra 1500 SLT reliable?
The 2026 GMC Sierra 1500 has an average reliability rating of 5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.
100% of drivers recommend this car
- Comfort 5.0
- Interior 5.0
- Performance 5.0
- Value 5.0
- Exterior 5.0
- Reliability 5.0
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.
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
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.
