Important Information
Ultra Low-Mileage Lease for Qualified Lessees. $227/month for 24 months for CURRENT BUICK & GMC LESSEES. Residency Restrictions Apply. $0 security deposit. $2,999 due PLUS 1ST PAYMENT, TAX & TAGS, DOC FEE & ACQUISITION FEE. Mileage charge of $0.25/mile over 20,000 miles. Expires 04-03-2023. Total Due for Non-Philadelphia, PA residents is roughly $4,909.13. BASED ON MSRP $34,745. See Dealer for details. IN-STOCK UNITS ONLY.
Important Information
Ultra Low-Mileage Lease for Qualified Lessees. $189/month for 24 months for CURRENT LESSEES. Residency Restrictions Apply. $0 security deposit. $2,899 due PLUS 1ST PAYMENT, TAX & TAGS, DOC FEE & ACQUISITION FEE. Mileage charge of $0.25/mile over 20,000 miles. Expires 04-03-2023. Total Due for Non-Philadelphia, PA residents is roughly $4,758.24. BASED ON MSRP $28,915. See Dealer for details. IN-STOCK UNITS ONLY.
Important Information
Ultra Low-Mileage Lease for Qualified Lessees. $198/month for 24 months for CURRENT BUICK & GMC LESSEES. Residency Restrictions Apply. $0 security deposit. $2,749 due PLUS 1ST PAYMENT, TAX & TAGS, DOC FEE & ACQUISITION FEE. Mileage charge of $0.25/mile over 20,000 miles. Expires 04-03-2023. Total Due for Non-Philadelphia, PA residents is roughly $4,604.96. BASED ON MSRP $29,030. See Dealer for details. IN-STOCK UNITS ONLY.
Important Information
Ultra Low-Mileage Lease for Qualified Lessees. $349/month for 24 months for CURRENT BUICK & GMC LESSEES. Residency Restrictions Apply. $0 security depos it. $2,999 due PLUS 1ST PAYMENT, TAX & TAGS, DOC FEE & ACQUISITION FEE. Mileage charge of $0.25/mile over 20,000 miles. Expires 04-03-2023. Total Due for Non-Philadelphia, PA residents is roughly $5,042.01. BASED ON MSRP $46,690. See Dealer for details. IN-STOCK UNITS ONLY.
View Our Lineup
Buick
GMC
Acadia
Canyon
Sierra 1500
Sierra 2500
Sierra 3500
Terrain
Yukon
Yukon XL
We're Proud to Be Warminster's Go-To Dealership for New Buck & GMC Models, Quality Pre-Owned, & Service & Parts—That's Right, We Do It All
If you’re here in Warminster, PA, then you know as well as we do—getting around out here is difficult without a reliable set of wheels, and while there are a number of dealerships you could choose, only O'Neil Buick GMC treats you like a friend and neighbor. And that's just what we are—we're your friends, your neighbors, and big fans of the Buick and GMC lineups. We do all we can to deliver the best customer experience, whether you're here for a new car, a CPO Buick or GMC, or the service to keep it running well for years. What's the difference between the GMC trucks? We have your answers. How does the Denali differ from the other trims in the SUV lineup? We have those answers too.
For any Maple Glen or Trevose drivers looking for affordable new and used cars, crossovers, and SUVs, great service, and genuine OEM replacement parts, then you're looking for O'Neil Buick GMC—in that case, you'll find us right down the road from If you’re looking for the intersection of quality and value, you'll find it here, right down the road from Five Ponds Golf Course. Come on in and join us to see how good car-buying can be. We're proud of our team of professional sales associates, and our low-pressure sales floor. While it's the Buick and GMC lineups that bring most Trevose and Doylestown drivers in, there are plenty of reasons to keep coming back—for your next new car, a great pre-owned model, or service, maintenance, and parts. At O'Neil Buick GMC, we do car-buying the right way!
Don't Get Driveway-Envy—Get a New Buick or GMC Car, Crossover, or SUV & Get On Your Way
While you won't find flashy sports cars here in our new Buick or GMC showroom, you will find reliable, strong, and handsome cars, crossovers, SUVs, and trucks near the Trevose area, Maple Glen, Doylestown, Willow Grove, and Horsham areas.
From the Buick SUV lineup, both the Buick Enclave and Buick Encore make excellent family vehicles, offering upscale amenities, cutting-edge tech, and plenty of space for people and cargo. If you're looking for something a little burlier, the GMC SUV and Truck lineup is home to the GMC Sierra 1500 pickup truck, the GMC Acadia, and the Terrain. For those who want a touch of luxury, the GMC Yukon Denali offers just that. When you see the 'Denali' badge, you'll know it signals attention to detail, luxury, and sophistication. So whether you're looking to lease or purchase a new Buick or GMC vehicle, O'Neil has your back and all the information you need to make that decision. Leasing a new Buick should be easy; so too should that new GMC lease. So stop by today and learn why more and more are coming to our dealership.
Our Pre-Owned Cars, Crossovers, SUVs, & Trucks Inventory Gives Other Dealers Showroom-Envy!
Now, we get that not all drivers from Doylestown or Willow Grove are looking for a brand-new vehicle, which is why we put as much effort into our pre-owned inventory as we do our new Buick and GMC inventory.
We mentioned that we're your neighbors and friends, and we promise to treat you that way, which means only putting quality, reliable pre-owned vehicles here on our lot. You'll find a wide selection of pre-owned Buick models and GMC vehicles, but we carry great cars, SUVs, and trucks from other top brands, including Ford, Chevrolet, Honda, Nissan, Toyota and other well-known brand names.
Need Sometimes Reliable, Affordable, & Fun to Drive? Sounds Like You Need Something Certified Pre-Owned
Need Sometimes Reliable, Affordable, & Fun to Drive? Sounds Like You Need Something Certified Pre-Owned
For drivers in the Horsham, PA area who would like a little more peace of mind when it comes to buying pre-owned will find their answers in our Certified Pre-Owned Inventory—this is a separate, highly curated selection of only certified pre-owned Buick and GMC models, screened and reconditioned to ensure they're up to the high factory standards of GMC. Not only must CPO models undergo a rigorous inspection and reconditioning process, but they also come with their own factory-backed Limited CPO Warranties; it's the best of both worlds—a like-new car ownership experience, but no like-new price written on the sticker!
SCHEDULE SERVICE ONLINE & ORDER PARTS FOR DIY
Our Highly Trained Service Technicians Will Keep Your GMC Equinox or Buick Encore Running Like-New
Part of responsible car ownership means sticking to a regular maintenance schedule. Here at O'Neil Buick GMC, we can make it easy for drivers in the Warminster, PA area to check service and maintenance items like oil changes, brake service, tire alignments, and diagnostic testing off the "To-Do" list and put them in the "Done" bin. Easily schedule service, and trust in our expert technicians, state-of-the-art facility, and commitment to using only OEM replacement parts in all our repairs—it's just one of the ways we're different than unaffiliated garages!
Hey, Speaking of Replacement Parts….
Repairs and replacements—no matter how carefully we drive, eventually we all need something tended to. When that time comes, our Parts Department will be here with the genuine Buick and GMC replacement parts that will best serve your Buick Encore, Enclave, or GMC Yukon Denali.
OEM replacement parts are important to the overall health and material integrity of your vehicle, and here at O'Neil Buick GMC, we use them in all repairs whenever available. They're not just the best choice because they're made by the original manufacturer, but because they're tested and engineered as one piece of an overall system, they're sure to work—not just look the part. Oh, and up to one year of a factory-backed warranty doesn't hurt either.
Whether it's repairs in our garage or an at-home DIY project, our parts department will get you the auto parts you need, and if we don't have them in stock, we can order them on-rush, so let us be your local one-stop shop for all your automotive needs!
Hours Of Operation
Sales
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
- Sunday
- Closed
Service
- Monday
- Tuesday
- Wednesday
- Thursday
- Friday
- Saturday
- Sunday
- Closed
