New GMC Vehicles
Shop Professional Grade trucks and SUVs, including Sierra 1500, Sierra HD, Canyon, Terrain, Acadia, Yukon and GMC electric vehicles.
Browse new GMC inventoryFamily Owned & Operated Since 1976
Professional Grade. Personally Delivered.
For 50 years, the Rossi family has helped drivers across Washington, Warren County, Hunterdon County and eastern Pennsylvania move forward with honest guidance, transparent pricing and legendary customer care.
Since 1976Family owned and operated
Transparent PricingNo hidden fees—ever
GMC ExpertiseSales, service and genuine parts
Local CommitmentServing NJ and eastern PA
Your GMC Dealer in Washington, NJ
Local. Loyal. Legendary.
Rossi GMC is a local, family-run dealership built around long-term relationships—not transactions. Our team proudly serves drivers from Washington, Hackettstown, Phillipsburg, Clinton, Flemington and Bridgewater, along with neighbors in Easton and the Lehigh Valley.
Whether you are comparing a versatile GMC Terrain, shopping for a Professional Grade GMC Sierra 1500, considering an Acadia or Yukon, exploring CarBravo certified vehicles, or returning for trusted GMC maintenance, you will find clear answers and a team that respects your time.
The Rossi way is simple: honest guidance, transparent pricing and a dealership experience built around you.
Everything You Need, All in One Place
A Complete GMC Dealership Experience
Used & CarBravo Vehicles
Compare quality pre-owned cars, trucks and SUVs from GMC and other popular brands, including eligible CarBravo certified vehicles.
Shop used vehiclesGMC Lease & Finance Offers
Explore current GMC incentives, lease offers and financing opportunities on the trucks and SUVs local drivers want most.
View GMC offersGMC Financing
Begin from home with our secure pre-qualification form, then compare available auto loan and lease options with our finance team.
Get pre-qualifiedCertified GMC Service
Trust factory-trained professionals for oil changes, tires, brakes, diagnostics and repairs completed with care for your GMC.
Explore our service centerGenuine GMC Parts
Protect your vehicle's capability with genuine GM parts and accessories backed by knowledgeable local parts professionals.
Order GMC partsOur Story
Deep Roots in Northwest New Jersey
Rossi Auto Group began in 1976 with a belief that buying and servicing a vehicle should feel personal, honest and uncomplicated. That belief still guides our family and team today.
1976The Rossi family begins serving local drivers.
1986Ed Rossi purchases the Chevrolet Oldsmobile franchise in Belvidere, NJ.
1992–1999The business expands to Washington and consolidates its GM franchises in one convenient location.
2006–TodayRossi GMC serves the region from 360 Route 31 South in Washington, NJ, with the Rossi family active in daily operations.
More Than a Dealership
Proud to Support the Community We Call Home
Our connection to Washington and Warren County extends far beyond the showroom. Team Rossi supports local organizations, schools, families and events because this is not simply where we do business—it is home.
- Local youth sports and school programs
- Charitable fundraisers and seasonal donation drives
- Community festivals, parades and family events
- Partnerships benefiting Northwest New Jersey
Frequently Asked Questions
About Rossi GMC
Where is Rossi GMC located?
Rossi GMC is located at 360 Route 31 South, Washington, NJ 07882, convenient to Hackettstown, Phillipsburg, Clinton, Flemington, Bridgewater, Belvidere and Easton, PA.
Is Rossi GMC family owned?
Yes. Rossi Auto Group has been family owned and operated since 1976, and members of the Rossi family remain actively involved in the dealership.
Which new GMC vehicles does Rossi sell?
Our inventory may include GMC Terrain, Acadia, Yukon, Canyon, Sierra 1500, Sierra HD and GMC electric vehicles. Check our live inventory for current availability.
Can I finance or lease a GMC at Rossi?
Yes. Our finance team helps qualified customers compare GMC lease offers, auto loans and available incentives. You can begin online with our secure pre-qualification form.
Does Rossi GMC provide certified service and genuine GM parts?
Yes. Our GMC service center handles maintenance and repairs, while our parts department can help you order genuine GM parts and accessories.
Experience the Rossi GMC Difference
Visit 360 Route 31 South in Washington, NJ, or call our sales team at 908-916-4692. We look forward to welcoming you.