O'Neil GMC

O'Neil GMC O’Neil GMC is a premier provider of GMC and GM Certified Pre-owned automobiles. CUSTOMER SERVICE- Our customers are the reason we exist.

Through a partnership with quality conscious clients, we guarantee complete satisfaction with our products and services. Our commitment to quality is reflected in our concern and response to customer needs. EMPLOYEES- O’Neil’s employees are the backbone of the company and the foundation upon which our success is built. O’Neil’s growth is a direct result of the performance and professionalism of ev

ery individual. We are committed to employee development well being and growth. Employees are our most valued assets!

🚗 Lease a New 2026 GMC Acadia ElevationTake advantage of this limited-time lease offer on a 2026 GMC Acadia Elevation an...
07/10/2026

🚗 Lease a New 2026 GMC Acadia Elevation

Take advantage of this limited-time lease offer on a 2026 GMC Acadia Elevation and drive home in a stylish, spacious SUV that's ready for every adventure.

Current Lessee Offer: $379/month for 24 months*

https://www.oneilgmc.com/new-Warminster-2026-GMC-Acadia-Elevation-1GKENKKS6TJ248659
869 W. Street Road, Warminster, PA
215-672-0900

Visit us today or contact our team for complete offer details before this offer ends!

*Offer available to qualified current lessees. See dealer for complete terms and eligibility. Offer expires August 3, 2026.

Activate your easiest summer yet with available Super Cruise driver assistance tech, the only driver assistance tech tha...
07/10/2026

Activate your easiest summer yet with available Super Cruise driver assistance tech, the only driver assistance tech that lets you drive hands-free.

Learn More

Looking for your next vehicle? Our July Used Car Blowout Sale is here! 🚗Shop from over 90 quality pre-owned vehicles wit...
07/09/2026

Looking for your next vehicle? Our July Used Car Blowout Sale is here! 🚗

Shop from over 90 quality pre-owned vehicles with a variety of makes, models, and price points to fit your budget.

Browse our inventory online or stop by and see us in Warminster today!

https://www.oneilgmc.com/searchused.aspx
869 W. Street Road, Warminster, PA
215-672-0900

🎉 Congratulations to Todd on his new 2026 GMC Sierra 1500 Denali Ultimate!Thank you for choosing O'Neil GMC and trusting...
07/09/2026

🎉 Congratulations to Todd on his new 2026 GMC Sierra 1500 Denali Ultimate!

Thank you for choosing O'Neil GMC and trusting Ben to help you find the perfect truck. We appreciate your business and hope you enjoy every mile in your new Sierra!

Welcome to the O'Neil GMC family! 🚘

The ease of a hands-free drive. That's OnStar. From your daily commute to a road trip, enjoy the drive with available Su...
07/08/2026

The ease of a hands-free drive. That's OnStar. From your daily commute to a road trip, enjoy the drive with available Super Cruise driver assistance tech.

Learn More

🇺🇸 Happy 4th of July from all of us at O'Neil GMC! Today, we proudly celebrate 250 years of American independence and ho...
07/04/2026

🇺🇸 Happy 4th of July from all of us at O'Neil GMC!

Today, we proudly celebrate 250 years of American independence and honor the courage, sacrifice, and freedom that have shaped our nation.

We wish you and your family a safe, fun, and memorable Independence Day filled with celebration and time spent with those who matter most.

As a reminder, our dealership is closed today. We look forward to welcoming you back when we reopen on Monday!

Happy Independence Day! 🇺🇸

🇺🇸 Holiday Hours Reminder 🇺🇸O'Neil GMC will be closed on Saturday, July 4th.We wish everyone a safe, fun, and happy Four...
07/03/2026

🇺🇸 Holiday Hours Reminder 🇺🇸

O'Neil GMC will be closed on Saturday, July 4th.

We wish everyone a safe, fun, and happy Fourth of July! ❤️🤍💙

We'll resume our normal business hours on Monday and look forward to seeing you then!

Long weekends, country roads and your GMC ready for every mile.
07/02/2026

Long weekends, country roads and your GMC ready for every mile.

Address

869 W Street Road
Warminster, PA
18974

Opening Hours

Monday 9am - 8pm
Tuesday 9am - 8pm
Wednesday 9am - 8pm
Thursday 9am - 8pm
Friday 9am - 8pm
Saturday 9am - 5pm

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