Each GMC CPO vehicle is thoroughly inspected and reconditioned before you buy it. And when you pull off the lot, you'll enjoy greater peace of mind with two factory-backed warranties: a new, longer 6-year/100,000 mile Powertrain Limited Warranty.
Search CertifiedService and Parts
High-quality, genuine GM parts are specifically designed, made, and tested to help keep your vehicle running at peak performance. Located in Derwood, MD and serving areas of Lyndhurst, Randolph, Cedar Knolls, Paterson, Mahwah, and Union County, GMCDemo2 offers a full lineup of Buick GMC service options for your auto repair needs, each one designed and manufactured to exacting standards for your specific vehicle. From oil changes to tire rotations, brakes, batteries, and multi-point inspections, we can handle it all. You can contact us at +1(973) 200-6607 for any further information. Drivers from Mahwah and Randolph to Union County can visit our service and auto repair center at GMCDemo2 in Derwood at the earliest.
Welcome To
DealerOn GMC
From the day we opened our doors, DealerOn GMC has had one priority: you. We've dedicated ourselves to offering the best cars, trucks, and SUVs to our local Maryland communities by following the principles on which the first DealerOn dealership was founded back in 1981.
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