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New and used
2025 GMC Sierra 1500 Denali trucks
for sale
near
Oakville, CT
- 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
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Best service around
Great service. Friendly people! And can feel they care about me and my vehicle!
Overall I am very happy with my new Truck.
Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
You can?
You can?t beat this dealership I will always do business here and tell everybody to buy new or used car and trucks and for service
I have the 1500 double cab with standard bed.
I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Justin was very helpful in getting my truck for me and
Justin was very helpful in getting my truck for me and was very excited for me, He did everything I asked and went over the whole process with me and made sure that I got what I wanted
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Excellent team to work with across the board.
Excellent team to work with across the board. The entire process was painless albeit time consuming. Would definitely recommend for anyone looking for an easy to work with team.
GMC Certified
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
We bought our new Acadia from Mike Rancharran at Gurnee
We bought our new Acadia from Mike Rancharran at Gurnee GMC, if you are looking to buy a car ask for Mike, he will do what he needs to do to get you a great car at a great price. What’s nice about the dealership is you deal with one person not 3 or 4, they are not pushy and if they don’t have what you are looking for they try to find the car you want. Thanks Mike !!
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Oil change, tire rotation
Good service, my car was not stolen from the dealer service center so that to me is a win :) Edgar was very professional and the waiting area was clean.
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
It was great no pressure and the sale man was what can I
It was great no pressure and the sale man was what can I say he was Awesome The next time I?m looking to purchase a new or used car it would be with Justin
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Had a great old school salesperson Chris Kavadas (sp?
Had a great old school salesperson Chris Kavadas (sp?). Who worked hard to make the deal happen. Finance Department beat the interest rate for the financing I brought with me as well as beat the warranty prices I had researched.
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
From start to finish everyone was great, it was a no
From start to finish everyone was great, it was a no pressure sales deal. That works for me the whole team was great. My salesman Grant F. Is fantastic. First time a finance manager was considerate and told me the product value adds that were tailored to my needs. Intent sales contact Rebecca.was fantastic
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I actually really like Lake City Buick service dept.
I actually really like Lake City Buick service dept. Not only are they friendly but they go out of their way to make you feel at home . Robbie is always straight up on what needs to be done to my truck, I pass two dealerships I used and never get the service like Lake City gives. I drive 80 miles to get my service work done there. Thanks for being a great dealership. And thanks for Robbbie and his coworkers
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I leased a car for my sister, the whole experience was
I leased a car for my sister, the whole experience was great and the process was quick. She loves her new vehicle. Stephanie, Carlos and management gave us a great deal.
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Thank you to Eddie, Steve and Josh.
Thank you to Eddie, Steve and Josh. You guys are awesome . Love my newest ride!
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
The dealership isn’t flashy, but the people are are
The dealership isn’t flashy, but the people are are real. That’s what counts.
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Chris Jeeninga was on top of his game and ready to assist
Chris Jeeninga was on top of his game and ready to assist me in my search for a car. Although new to the car selling business, and youngster just starting out his career, he was kind, courteous, and helpful. If he didn't know the answer, he admitted he was learning but got us to the right information and helped us to a decision on our car purchase. Keep up the great work.
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I had a big issue with my Buick enclave transmission, it
I had a big issue with my Buick enclave transmission, it is obviously a manufacturer issue, my car stayed for long while till the issue diagnosed and repaired, and I had to take it back again. I can?t deny that everyone in the dealership?s service department including service manager and my advisor did their best to make me happy, and actually I am! I got my car back finally and hope that the issue is solved forever and nothing else comes up, I am testing i for few days now. So thank you Serra Buick GMC Rochester.
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Customer service in the service department by Matt and
Customer service in the service department by Matt and Cody was over the top excellent!
Vehicle information
Features
Reviews
Excellent Sales representative.
Excellent Sales representative. Listened to my needs and worked with me to find the truck I wanted. Always available for phone calls. Kept me posted on delivery date
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
This was the easiest and best car buying experience i
This was the easiest and best car buying experience i have ever had. Tanner was attentive to our needs and made everything as easy as possible.
Used
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Awesome
They made everything so easy. Got the car I never knew I wanted and I love it. Don't plan on taking it in any time soon but I know where I'll be going when I do.
New
2025 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I worked with Steve during my search for a used EV, and I
I worked with Steve during my search for a used EV, and I genuinely can't say enough good things about him. Although I ultimately had to go with a different vehicle due to logistics and timing, I really wish I could’ve closed the deal with him. Steve was hands down the best salesperson I spoke with during this entire process. From the beginning, he was patient, transparent, didn't play games and was never pushy - a rare combo in my experience of car shopping. He took the time to understand what I was looking for, explained the details clearly, and even caught important details (like hail damage) before I committed, which shows integrity and a customer-first mindset. He followed up consistently without being overbearing and truly made me feel like he was working with me, not against me. He was proactive and helpful every step of the way. If you're in the market and want to work with someone who's honest, attentive, super friendly and genuinely kind, ask for Steve. He sets the bar for what a car buying experience should be. Thank you again, Steve. I really appreciate everything!
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 Denali | $75,042 |
About the 2025 GMC Sierra 1500 Denali
Denali 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 2025 GMC Sierra 1500 Denali cost?
The 2025 GMC Sierra 1500 Denali price depends on optional features. Prices typically start at $65,400.
What is the MPG of the 2025 GMC Sierra 1500 Denali?
The 2025 GMC Sierra 1500 Denali 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 2025 GMC Sierra 1500 Denali?
The 2025 GMC Sierra 1500 Denali compares to and/or competes against the following vehicles:
Is the 2025 GMC Sierra 1500 Denali reliable?
The 2025 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 2025 Sierra 1500 owners.
100% of drivers recommend this car
- Comfort 5.0
- Interior 5.0
- Performance 4.5
- Value 4.5
- Exterior 4.5
- Reliability 4.5
Denali (3 styles)
| Style | ||
|---|---|---|
| 2WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali | 4WD Crew Cab 147" Denali |
| Inventory price | ||
| Starting at $65,400 | Starting at $69,200 | Starting at $68,700 |
| Combined MPG | ||
| 17 | 17 | 17 |
| 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 currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
