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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
West Allis, WI
- 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
Excellent Car Service Provider
I am grateful to have a car service provider that can deliver good quality services. Thank you.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Had the pleasure of having Nick Majeske provide us with
Had the pleasure of having Nick Majeske provide us with an unbelievable experience of buying a new car. From start to finish and even after we purchased our car, his support and genuine desire to make sure we were satisfied did not go unnoticed. What really stood out to us was throughout the process, Nick was transparent and honest, which I greatly appreciated. He kept us informed every step of the way, and there were no surprises or hidden fees. His professionalism and integrity are truly commendable. We could not be happier with our purchase and overall experience throughout it all, and we would like to think this was in all thanks to Nick.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Overall pleasant experience.
Overall pleasant experience. I had some issues arise in the purchasing process, but they were all addressed timely and satisfactorily. Nice people to deal with.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I went in for an oil change and came out with a new
I went in for an oil change and came out with a new vehicle. The sales staff are amazing. Friendly, accomodating and efficient. The manager in the service department pays attention to the details. He has been very friendly and accomidating.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
We purchased a used car from Robert and he was extremely
We purchased a used car from Robert and he was extremely respectful and went out of his way to be helpful. We needed to get a car trailer to get the car back to Louisville Kentucky. He was able to find one and reserve it for us. Everyone at the dealership was very nice and helpful. We enjoyed dealing with everyone. We will always remember the great service and friendly staff. We will remember them if we make any future car purchases.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Kunes Buick GMC
Found and fixed my oil leak and got me on my way in about an hour! Fair price and a great service advisor who walked me through everything before starting the work! Thank You Steve Buczak! Thank you also for the free car wash!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Mr Biddle is pleased with the work and professional
Mr Biddle is pleased with the work and professional service Solomon has demonstrated in fixing my Yukon and he helped in getting all parties involved. Thank you Solomon and crew !!!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I arrived late to pick up my vehicle.
I arrived late to pick up my vehicle. Fortunately one of the Service writers noticed my arrival as he was leaving for the night. He came back to the dealership and secured my vehicle and billing. Great service.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Thanks for your help!
Thanks for your help! This dealership offered a great deal that I couldn't pass up on. Glad to have worked with them to make this happen. I am particularly appreciative of the no-hassle and no-pressure environment that the salesperson, Cody, did a great job fostering. Looking forward to working with them in the future!
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Overall great experience in and out experience was great.
Overall great experience in and out experience was great. They got me in and out paperwork didn?t take more than an hour overall great experience.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Positive experience
No pressure car buying experience with Chad Braeger. He answered all our questions that we had. When I went back a week later to pick up the vehicle from having accessories installed, Chad met me at the door and answered any follow up questions I had with the vehicle.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Chad & Patti
Chad Breager & Patti Galligan went above and beyond my expectations! 2 of the most helpful people I have ever met ! I definitely will be back ! Eddie
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My Jeep Wrangler
Had a awesome experience with Chad Braeger when purchasing my Jeep Wrangler. Everyone was helpful and willing to answer any questions or concerns I had. Thank u, for making me feel comfortable thru out my buying experience. Lisa
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great!
Great!! Did everything they could to make it a pleasurable car buying experience! Great job to the team at Boucher BGMC
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Exceptional and Stress Free Experience!
The service I received was beyond exceptional! Cody in sales took much time to explain all features my suv held. He thoroughly answered all of my questions and made sure all of my expectations were met. He took the time to interact in a fun and relaxing way with my nephew as we waited for financing. Patty in financing was beyond incredible. She went above and beyond to be sure my budget was met and was very understandable and patient! I could have not asked for a better and stress free experience!!
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
I was very happy with my entire experience at this
I was very happy with my entire experience at this dealership ship. The entire staff from the sales manager, salesman, service manager and master mechanic were all very friendly respectful and professional. I would highly recommend this dealership to anyone looking to purchase a vehicle.
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
New
2026 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very satisfied.
Very satisfied. Everyone is very helpful and always answers my question !!!! I have been purchasing my Buicks from you for the past 12 years. Love My Buick!!!! I have a 2024 Buick Encore ST.
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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.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
46 listings starting at $47,964
-
GMC Sierra 1500 2026 Denali
21 listings starting at $70,105
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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.
