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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
Wheaton, MO
- 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.






Used
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
New Expierence
Yesterday I gave a very negative review. I should have waited. Today I had a call from Ryan the Service Manager and he understood my my frustration. After talking I found out he had been the Service Manager at the Dealership I had used for 10 years before I bought my Renegade. Now I have confidence all will be OK. If anyone has had a bad experience like I had give him a chance to fix the problem, I am sure you won't be disappointed.






New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My salesman Chuck was outstanding and very patient with
My salesman Chuck was outstanding and very patient with me. As a single lady car shopping I was very comfortable with him and he was so respectful. Austin was my finance person and he was also outstanding. Both should be highly praised for their outstanding service.






New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I went to MD Buick GMC a couple of months ago to inquire
I went to MD Buick GMC a couple of months ago to inquire about purchasing a 2025 Hummer EV SUV. We discussed several options and the staff was extremely knowledgeable about EVs, especially the Hummers. Cole (sales rep) was amazing to work with! Great guy! Passionate about what he does and truly cares about his customers! Grant (sales manager) actually took us on a test drive of the SUV to better inform us of its capabilities! The test drive was a blast! He took his time to answer all of the kids questions, was patient and really made everyone feel a part of the process! When we got to the negotiating, Todd (GM) made sure that we got the best deal possible! He was super easy to work with, made sure we understood everything, and got exactly what we wanted. Austin (Finance) took great care of us as well! Again, made sure we got everything we needed, went over all the numbers again to make sure nothing was missed, and helped us get all the coverages we needed/wanted! Ryan (service manager) was extremely helpful in making sure we got the accessories we needed, like a home charger! He was super informative, and took great care of us! Everyone was truly amazing to work with throughout the entire buying process! The next time I am looking for a vehicle, I will absolutely go back and let them help me find the vehicle I want! I wish every dealership conducted themselves as these guys do! I would probably buy cars more often! I almost forgot the best part!! It didn?t take all day to buy a car!! They were very respectful of our time, took the time needed to ensure we were extremely happy, got exactly what we wanted, and made the process as efficient and painless as possible!! It was truly the best car buying experience I have had! The whole family loves the new Hummer EV SUV!!






New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Lee was fantastic to work with and was a wealth of
Lee was fantastic to work with and was a wealth of information. The experience was quick and didn?t feel like a waste of my time.






New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My experience was Low pressure, courteous, informative.
My experience was Low pressure, courteous, informative. Tyler provided a great service, even after hours to keep me informed. New truck purchase was made easy.






New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
As usual, great service and experience, Had my 2019 Buick
As usual, great service and experience, Had my 2019 Buick Enclave's oil changed and tires rotated. Will definitely consider McClarty Buick when looking to trade vehicles in the future.






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






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






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
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.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 SLT
68 listings starting at $52,245
-
GMC Sierra 1500 2026 Denali
52 listings starting at $60,920
-
GMC Sierra 1500 2026 AT4
35 listings starting at $60,235
-
GMC Sierra 1500 2026 SLE
21 listings starting at $47,850
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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.