New 2026 GMC Sierra 1500 Denali Four Wheel Drive Crew Cab
- VIN: 1GTUUGE88TZ398006
- Stock: 26K647
Basic Info
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Exterior:Glacier White Tricoat
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Drivetrain:Four Wheel Drive
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Interior:Atmosphere/Brownstone, Forge perforated leather seat trim
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Transmission:Automatic
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Engine:3.0L Duramax® Turbo Diesel engine
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Fuel Efficiency:22 CITY / 26 HWY
Key Features
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AWD
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Adaptive Cruise Control
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Android Auto
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Apple CarPlay
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Automatic Climate Control
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Backup Camera
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Bluetooth
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Fog Lights
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Keyless Entry
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Lane Departure Warning
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Lane keep assist
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Leather Seats
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Parking Sensors / Assist
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Power Seats
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Push Start
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Rain Sensing Wipers
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Remote Start
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Side-Impact Air Bags
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Sunroof / Moonroof
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Super Cruise
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Technology Package
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Tow Package
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Wireless Phone Charging
Description
- Glacier White Tricoat exterior
- 3.0L I-6 Diesel Turbocharged (Duramax) engine with 10-speed automatic transmission and 4WD
- Denali Reserve Super Cruise Package including Technology Package, sunroof, MultiPro Power Steps, 22 wheels, and Super Cruise
This Sierra Denali is equipped with an impressive array of premium features to enhance your driving experience:
- Bose 7-speaker premium sound system
- Heated and ventilated front seats, heated rear outboard seats
- Multicolor head-up display, wireless charging, and Wi-Fi hotspot
- Adaptive suspension, Super Cruise semi-autonomous driving, and more
Whether hauling heavy loads or enjoying a relaxed commute, the Sierra Denali delivers uncompromising capability and refinement. Experience the difference with this exceptional full-size truck.
Come in today and discover the pinnacle of GMC engineering. We know you'll be impressed. Price includes: $1750 - Buick & GMC Consumer Cash Program. Exp. 08/03/2026 $2500 - GM Trade In Allowance Program. Exp. 08/03/2026 $500 - Buick GMC Bonus Cash. Exp. 08/03/2026
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Brandon Large
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Devin Hawes
Certified Sales & Leasing Professional
Sullivan Buick GMC Specialists
Brandon Large
Certified Sales & Leasing Professional
May 06, 2026
Very Friendly staff !
Very Friendly staff ! They had exactly what I was looking for. I did not feel any high pressured sales.
Apr 29, 2026
I purchased my last car from Sullivan.
I purchased my last car from Sullivan. My agent was Brandon Large and he was the best salesperson I think I ever dealt with. Wish more sales people were like him and because we were so impressed with him is why we returned to deal with Brandon and purchase our new GMC The management man (Charles Hawkins) was just as impressive.
Apr 10, 2026
Very happy with my new car purchase.
Very happy with my new car purchase. Fair pricing and honest staff. Would recommend to friends.
Mar 27, 2026
daniel was a pleasure to work with , he knew what i was
daniel was a pleasure to work with , he knew what i was looking for and he came through for me
Mar 26, 2026
Brandon was a great salesman!
Brandon was a great salesman! Went above and beyond to please! Highly recommend him and the dealership!
Princess Mercedes
Certified Sales & Leasing Professional
Jul 10, 2026
Princess is very professional and was friendly in dealing
Princess is very professional and was friendly in dealing with Linda Ann and me We felt comfortable and no pressure in the purchase of a vehicle.
Jul 06, 2026
Professional employees.
Professional employees.....kept me informed on where they were in the process. Would definitely return
Jul 05, 2026
We haven’t considered visiting Sullivan Buick gmc for
We haven’t considered visiting Sullivan Buick gmc for years because of negative attitudes we experienced with employees a few years ago. But this visit really changed our opinion of this dealership. Anyone we had contact with was very nice.we especially liked Devon our salesman. We met him originally at Cecil Clark chevy quite some time ago and liked him then. We were very impressed with Zach the general manager and how very nice and personable he is.we actually had a long and very pleasant conversation with him.very nice man. We had a very nice experience at Sullivan Buick gmc. Thank you to all for our amazing buying experience.
Jun 13, 2026
Princess listened to all of my concerns and what I was
Princess listened to all of my concerns and what I was really looking for! The dealership was clean and efficient.
Jun 04, 2026
There are great people that work at the dealership.
There are great people that work at the dealership. GREAT VALUE, Excellent and easy buying process. Thank you for the perfect deal on the perfect car.
Devin Hawes
Certified Sales & Leasing Professional
Jul 05, 2026
We haven’t considered visiting Sullivan Buick gmc for
We haven’t considered visiting Sullivan Buick gmc for years because of negative attitudes we experienced with employees a few years ago. But this visit really changed our opinion of this dealership. Anyone we had contact with was very nice.we especially liked Devon our salesman. We met him originally at Cecil Clark chevy quite some time ago and liked him then. We were very impressed with Zach the general manager and how very nice and personable he is.we actually had a long and very pleasant conversation with him.very nice man. We had a very nice experience at Sullivan Buick gmc. Thank you to all for our amazing buying experience.
Feb 04, 2026
Great experience, totally recommended.
Great experience, totally recommended. If you want to make business with a serious Dealer the Sullivan is your best choice!!
Dec 03, 2025
I do really love my car but I wanted the moonroof as
I do really love my car but I wanted the moonroof as well. I did request that when I first called the dealership.
Nov 01, 2025
Quick, Clean Easy.
Quick, Clean Easy. He understood the assignment. Deliver what the customer is asking and everything goes smoothly.
Oct 29, 2025
EXCELLENT EXPERIENCE- the entire team was eager to work
EXCELLENT EXPERIENCE- the entire team was eager to work with us and was very patient to make things happen for us. Even delivered the vehicle several hours away, They did everything to make the deal work for us.
Joe Delprete
Certified Sales & Leasing Professional
Jul 21, 2026
Everyone was very nice and helpful.
Everyone was very nice and helpful. This is the fifth or sixth car I have purchased from you. So the service was great or I would not been coming back .
Jul 09, 2026
This was my second car I bought from Joe at Sullivan’s
This was my second car I bought from Joe at Sullivan’s GMC. He was very professional and easy to talk to. Very helpful in getting familiar with the car.
May 18, 2026
Everyone at the dealership, starting with my salesman
Everyone at the dealership, starting with my salesman Joe, were so invested in getting me the best possible deal. Zach, the Sales Manager went above and beyond to ensure that I was completely satisfied before signing the contract. The signing of the contracts blew me away with the advanced technology that the dealership has implemented! KUDOS to the entire staff!!
Mar 04, 2026
Thank you all involved in assisting me with my new
Thank you all involved in assisting me with my new vehicle, and can’t be more happier!
Feb 04, 2026
Great experience, totally recommended.
Great experience, totally recommended. If you want to make business with a serious Dealer the Sullivan is your best choice!!
Rich Bouker
Certified Sales & Leasing Professional
Jun 19, 2026
Great customer service.
Great customer service. Very professional and knowledgeable. Thank you all for making this experience great.
Jun 02, 2026
Purchased several vehicles from this dealership over the
Purchased several vehicles from this dealership over the years, always a pleasant experience, no pressure, everything is explained, and it's nice to see some of the same faces there years later, that in itself speaks volumes of this dealership.
May 31, 2026
Attentive, knowledgeable and friendly staff - from the
Attentive, knowledgeable and friendly staff - from the receptionist to the Sales Manager. I would strongly recommend this dealership to family and friends.
May 05, 2026
They were great fast moving and wonderful to work with.
They were great fast moving and wonderful to work with. I would recommend them for anyone looking for a new or used vehicle.
May 01, 2026
The GM, Zach, went above and beyond to help me find my
The GM, Zach, went above and beyond to help me find my dream truck. His professionalism and courtesy is outstanding. It was a great experience, and an absolute pleasure working with him. I highly recommend Zach and his crew. If you are searching for a vehicle Zach is your man at Sullivan GMC.
Sean Gruber
Certified Sales & Leasing Professional
Jul 10, 2026
I had an excellent experience buying my new car from this
I had an excellent experience buying my new car from this dealership. From the moment I walked in, the entire process was smooth, professional, and stress-free. A special thank you to the salesperson, who was patient, knowledgeable, and took the time to answer all of my questions without any pressure. They made sure I found the right vehicle for my needs. I also want to recognize the finance representative, who was incredibly helpful throughout the financing process. They explained everything clearly, worked hard to find the best options for me, and made the paperwork quick and easy to understand.I truly appreciate the outstanding customer service I received from both of them. They went above and beyond to make my car-buying experience a positive one. I highly recommend this dealership to anyone looking for a new vehicle. Thank you for making this such a great experience
Jul 01, 2026
Sean was very helpful and the finance guy was very
Sean was very helpful and the finance guy was very helpful. The only thing about Sullivan we got there around 1200 met up with Sean and we did not leave until 3 to 4 hours later, which is really unacceptable due to computer crashing or maybe it took that long to get financing, I am unsure. We all survived
May 07, 2026
We came in on a Sunday and we were well received not
We came in on a Sunday and we were well received not pressured and everybody was very nice and we left that afternoon with the truck. Thank you for such a good experience Jim and Deb Scott.
May 06, 2026
Really great service, Sean is definitely the guy to go
Really great service, Sean is definitely the guy to go with if your looking to get into a new vehicle.
Apr 12, 2026
We had a vehicle that was specific to our needs.
We had a vehicle that was specific to our needs. Sean located the vehicle. He was knowledgeable about the vehicle and showed us all the perks. There was never any pressure tactics or any nonsense (as I call it) that can sometimes happen at a dealership. We made our decision, even after Sean helped us haggle a little on the money. Even going into Anthonys office ( Finance Manager), was not overwhelming or pressured in any way. The dealership stayed open late to complete the deal and we never felt like we were rushed in anyway. My true appreciation to Sullivan GMC for getting us into our dream truck.
Stephen Jones
Certified Sales & Leasing Professional
Apr 30, 2026
Worked with Steve Jones.
Worked with Steve Jones. Very professional. Listen to what WE had to say. Work hard to make a deal
Apr 29, 2026
Very friendly and patient.
Very friendly and patient. Worked with us on getting a good price and the right vehicle
Mar 24, 2026
We were very well served from the time we arrived until
We were very well served from the time we arrived until we left, everyone was very attentive and left satisfied
Mar 16, 2026
We were able to find the right car for us easy purchase
We were able to find the right car for us easy purchase the salesman were awesome and friendly answered all our questions and we test drove 3 SUV’s and salesman was nice throughout.
Mar 09, 2026
Stephen Jones, our salesman, was easy to work with.
Stephen Jones, our salesman, was easy to work with. He was patient to wait until I got ready to buy. I wish we could have gotten a little better deal but we got what we wanted.
Halie Caro-Wilder
Internet Manager
Dec 21, 2025
Halie assisted me with the details of the vehicle and
Halie assisted me with the details of the vehicle and purchase over the phone. Zach and Alexus assisted me once arriving at the dealership. The entire experience exceeded our expectations. Amazing dealership with kind and helpful individuals.
May 04, 2025
He was amazing!
He was amazing! He has done everything he said he would do and alot more.
May 02, 2025
Sean was very down to earth.
Sean was very down to earth. Showed us different vehicles we were interested in to compare. He was always courteous and polite and made the car shopping process easier. Sean wa the reason we bought from Sullivan Joe was also fair in dealing with us and was polite during our negotiations.
Apr 23, 2025
They have an efficient kind, courteous knowledgeable on
They have an efficient kind, courteous knowledgeable on time and welcome me each time I come in regardless whether it’s just ask a question where do you get service on my vehicle?
Apr 15, 2025
Devin was knowledgeable, professional, and genuinely
Devin was knowledgeable, professional, and genuinely helpful—made the car-buying process smooth and stress-free
Timi Thomas
Certified Sales & Leasing Professional
Jul 11, 2026
On time appts.
On time appts. Pleasure to help you. Always helpful and cheerful. Always have a smile to assist you.
May 27, 2026
The service was great from the moment i called about my
The service was great from the moment i called about my vehicle from the previous month i spoke with the general manager zack he took time out his schedule to listen to the issue i was having and asked questions and took care of the issue and i can't forget the sales rep timi Thomas her amazing skills and expertise was great im highly satisfied
Daniel Antonino
Certified Sales & Leasing Professional
Jun 29, 2026
I couldn’t ask for a better experience…walked in and
I couldn’t ask for a better experience…walked in and walked out with a truck that I wanted! The costumer service is top tier. Also everybody is very informative about each car! Would recommend 10/10.
May 19, 2026
Was a great dealership, easy to work with sales person
Was a great dealership, easy to work with sales person real helpful when above and beyond
Alexus Grace
Certified Sales & Leasing Professional
Apr 06, 2026
They did a good job, the salespeople, both of Them.
They did a good job, the salespeople, both of Them. I came on a Day that the first contact person was not there and Alexus filled in for Matt and as the Yukon was delivered to the Dealership, Matt was able to finish the deal . I thought that is what a team is all about. Jeff the sales manager was great to deal with Thanks Joe
Mar 04, 2026
Thank you all involved in assisting me with my new
Thank you all involved in assisting me with my new vehicle, and can’t be more happier!
Feb 04, 2026
Great experience, totally recommended.
Great experience, totally recommended. If you want to make business with a serious Dealer the Sullivan is your best choice!!
Jan 03, 2026
Well run, honest, fair, and efficient.
Well run, honest, fair, and efficient. Staff are attentive and professional. Vehicle was perfectly detailed and the finance department worked hard to ensure we got the best rate.
Brandon Lea
Certified Sales & Leasing Professional
Jul 21, 2026
Everyone was very nice and helpful.
Everyone was very nice and helpful. This is the fifth or sixth car I have purchased from you. So the service was great or I would not been coming back .
Jun 04, 2026
There are great people that work at the dealership.
There are great people that work at the dealership. GREAT VALUE, Excellent and easy buying process. Thank you for the perfect deal on the perfect car.
Brad Dechent
Certified Sales & Leasing Professional
Customer Reviews
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Disclaimer:
***The price you see is the price you get, with zero hidden fees. This amount excludes only official government charges, consisting of state and local sales tax, vehicle title, license, and registration fees. Final transaction pricing, sales terms, and financing approval are subject to final review and the sole determination of dealership management.
Sullivan Buick GMC will NOT sell or lease New Vehicles in the states of Alaska, Montana, New Hampshire, or Oregon unless primary residence is loacted in mentioned state.
The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.