New Sierra 2500 Dealership In Plattsburgh, New York

Explore the New GMC Sierra 2500 at Brennan Buick GMC

The GMC Sierra 2500 is generally known for its unrelenting performance, technological innovations, and impressive comfort. As we welcome the latest iteration into our dealership, we are really excited to show just how GMC has further refined this powerhouse to meet the changing needs of today's drivers.

What is New For the New Model Year?

For 2025, the GMC Sierra 2500 has a few exciting updates geared towards capability and the overall value equation. Adaptive cruise control with trailering assist, previously only available on the top AT4X and Denali Ultimate trim levels, now comes standard for both the AT4 and Denali trims. Such penetration of advanced driver assistance technology down the pecking order shows GMC's commitment to making premium features more accessible.

What Are the Benefits of Buying a New GMC Sierra 2500?

More than the impressive towing capacity and robust construction, there's really so much more to gain in investing in a new GMC Sierra 2500. At the core of it all, the Sierra 2500 is a powerhouse of versatility. Whether it is treading across a job site, an over-the-country adventure, or just running a daily commute through Morrisonville, this truck seems to make an easy fit with whatever your lifestyle is.

Sierra 2500 powertrains are also fully engineered to deliver maximum capability without sacrificing efficiency. The available Duramax diesel, combined with the legendary Allison transmission, finds the ideal balance of power and dependability, and it gets the job done with no compromise.

Comfort is another strong point for the Sierra 2500. The cabin in itself is made of higher-class materials with cutting-edge technology. It is just about as functional as it is luxurious, from an available heads-up display to the intuitive infotainment system.

The Sierra 2500 has further advanced its safety features to totally give drivers a feeling of peace every time they go on a journey. Systems like lane departure warnings, forward collision alerts, and expanded adaptive cruise control with trailering assist will let drivers drive confidently, knowing that their Sierra is equipped for various road conditions and occurrences around Keeseville.

Financing and Purchasing With us Here at Brennan Buick GMC

At our dealership serving Plattsburg, we are surely mindful that the investment in a new vehicle decision is not taken lightly. As such, we have streamlined our financing and purchasing process to be even more smooth and transparent. On-site, our team of financial experts works hard to get just the right solution that meets your budget and needs, whether it is leasing or outright purchase.

Our competitive interest rates and flexible terms usually keep your financial situation in mind. Also, relationships with several of the leading lenders enable us to obtain the best possible rates for our customers, and our regular promotional offers and incentives can also make a new GMC Sierra 2500 more attainable than you may think.

Our Parts and Service Center Here at Brennan Buick GMC

Owning a GMC Sierra 2500 is certainly just the first part of your journey with us. Our parts and service center is fully equipped with the latest technology and staffed by factory-trained technicians who know your vehicle well. We use only genuine GMC parts for the repairs in your Sierra 2500 to ensure a long life and better performance.

Maintenance is the key to continuing to drive a great-running truck, and at our service center, getting your vehicle maintained is super easy by offering convenient scheduling options. Whether you are here for something as simple as an oil change or your truck requires a more detailed repair, we have the resources to attend to all of your service needs.

Learn More Today

The all-new GMC Sierra 2500 definitely showcases the pinnacle of heavy-duty truck engineering, offering class-leading performance, comfort, and technology. We invite you to schedule an appointment for a test drive with us in Plattsburgh to experience firsthand just how exceptional this vehicle is. Our friendly and knowledgeable staff is here to help you understand why the GMC Sierra 2500 is the best decision for your needs. Explore our financing options here today.







Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

1Dealer Discount applied to everyone

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  1. Brennan Buick GMC

    383 Route 3
    Plattsburgh, NY 12901

    • Sales: (518) 310-2376
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  • Contact our Sales Department at: (518) 310-2376
  • Monday8:30 am - 6:00 pm
  • Tuesday8:30 am - 6:00 pm
  • Wednesday8:30 am - 6:00 pm
  • Thursday8:30 am - 6:00 pm
  • Friday8:30 am - 6:00 pm
  • Saturday8:30 am - 4:00 pm
  • SundayClosed