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 SLE trucks
for sale
near
Markham, 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 SLE
Vehicle information
Features
Reviews
alex gave me a great deal on our new buick.
alex gave me a great deal on our new buick..... thank you so much alex.
Easy purchase experience, would recommend to anyone
Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
We had the best experience at the Arnie Bauer dealership!
We had the best experience at the Arnie Bauer dealership! As a first time car buyer, the process can be a little scary and overwhelming. However, Brandon and Alex were amazing. They walked me through every step and were beyond easy to work with. I could not imagine having gone somewhere else. Will definitely only be using them for car purchases in the future!
A little expensive, but comfortable, quiet, smooth ride.
A little expensive, but comfortable, quiet, smooth ride. Great performance out of the 6.2L and better than expected fuel economy in the low 20s. Outstanding interior and good looking exterior, especially in the Downpour Metallic color. I don’t have 700 miles on it yet and have owned it for 3 weeks. Therefore, I can’t pass judgement yet on the reliability, but so far I am very satisfied. This replaced an 8 year old Ford F150 that served me quite well with only a couple of issues in the 100,000 plus miles.
Vehicle information
Features
Reviews
See Rocky at Al Pimonte
When looking for a new vehicle contact Rocky! He is the man for all your car needs. He’s very good at his job and he makes sure you leave the dealership satisfied with your purchase and with a great deal. Wether you’re in the market for a new or used vehicle he will help find exactly what you’re shopping for. Recommend 10/10
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
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Nathan and Kevin was great.
Nathan and Kevin was great. They made the car buying experience very simple and made sure that all of my questions were answered. Im very happy with my new Envista.
Vehicle information
Features
Reviews
Alex Alverio
Alex is the man to see he knows his vehicles. Easy to talk to great customer service, he finds the vehicle you need. Alex help us in every aspect. Would highly recommend this dealership and recommend you all to see Alex.
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Battery wasn?
Battery wasn?t installed correctly. I had returned my car to get the battery installation corrected and had to miss work. I was disappointed with the work.
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Second car I purchased from castle gmc our sales person
Second car I purchased from castle gmc our sales person was Nubia /great experience every time helpful and always greats us as family highly recommend castle gmc Nubia and Brandon will take very good care of you . 👍🏻
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Great Cars and also good service.
Great Cars and also good service. Vincent Vega was very helpful thank you Vincent for all your help. This is our third car from Castle Buick GMC. We loved thank you .!
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
It was my first time at this dealership and will return
It was my first time at this dealership and will return for future repairs.The service representative kept me informed which made the process smooth and quick, with clear explanation.
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
The dynamic duo strike again!
The dynamic duo strike again! Corey and Tito came through as always to meet my wants, my needs, and my budget! Always professional and knowledgeable and willing to go that extra mile when needed. I couldn?t ask for a more dedicated Team!
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Needed key fobs replaced.
Needed key fobs replaced. They were ordered and came in within the next couple days. Scheduled the service appointment and all was completed within two days. Have received great service upon all my visits.
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
I and my wife only use the dealer's services for
I and my wife only use the dealer's services for maintenence and repairs. We are always satisfied with the quality of the repairs and the friendliness of the office technicians
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
“Excellent Communication
My first experience at this dealership will definitely bring me back. We are so happy with our purchased! We had Alex Alverio from Sales, he was very professional & helpful, has awesome customer service & we highly recommend Alex. Thank you so much and keep it up!
New
2026 GMC Sierra 1500 SLE
Vehicle information
Features
There are additional matching cars outside your search area.
Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.
As a benefit to some of our dealer customers, we display their listings first.
Vehicle information
Features
Vehicle information
Features
Vehicle information
Features
Vehicle information
Features
-
Prev - 1
-
Next
About the 2026 GMC Sierra 1500 SLE
SLE shown.
- Seating
- 6
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 20
- Transmission
- 10-Speed A/T
- Engine
- 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)
How much does the 2026 GMC Sierra 1500 SLE cost?
The 2026 GMC Sierra 1500 SLE price depends on optional features. Prices typically start at $48,700.
What is the MPG of the 2026 GMC Sierra 1500 SLE?
The 2026 GMC Sierra 1500 SLE offers up to 18 MPG in city driving and 21 MPG on the highway for a combined rating of 20 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 SLE?
The 2026 GMC Sierra 1500 SLE compares to and/or competes against the following vehicles:
Is the 2026 GMC Sierra 1500 SLE reliable?
The 2026 GMC Sierra 1500 has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 1500 owners.
75% of drivers recommend this car
- Comfort 4.0
- Interior 4.0
- Performance 4.2
- Value 3.5
- Exterior 4.2
- Reliability 4.5
SLE (5 styles)
| Style | ||||
|---|---|---|---|---|
| 4WD Crew Cab 157" SLE | 2WD Crew Cab 147" SLE | 4WD Crew Cab 147" SLE | 4WD Double Cab 147" SLE | 2WD Double Cab 147" SLE |
| Inventory price | ||||
| Starting at $54,900 | Starting at $51,300 | Starting at $54,600 | Starting at $52,000 | Starting at $48,700 |
| Combined MPG | ||||
| 18 | 20 | 18 | 18 | 20 |
| Engine | ||||
| 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 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.
2026 GMC Sierra 1500 SLE by city
-
2026 GMC Sierra 1500 SLE in Posen, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Harvey, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Midlothian, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Dixmoor, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Robbins, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Phoenix, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Oak Forest, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Blue Island, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Crestwood, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Riverdale, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in South Holland, IL
20 listings starting at $46,997
-
2026 GMC Sierra 1500 SLE in Calumet Park, IL
20 listings starting at $46,997
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
170 listings starting at $44,500
-
GMC Sierra 1500 2026 Denali
78 listings starting at $62,250
-
GMC Sierra 1500 2026 Pro
61 listings starting at $36,495
-
GMC Sierra 1500 2026 AT4
36 listings starting at $62,750
-
GMC Sierra 1500 2026 SLT
33 listings starting at $55,850
-
GMC Sierra 1500 2026 Denali Ultimate
24 listings starting at $75,000
- ${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.
