Located in Monmouth Junction, NJ, Hyundai of South Brunswick is the #1 Hyundai Dealer in NJ. Our certified technicians are trained extensively on Hyundai maintenance and repair, from simple oil changes to complex repairs! Call us today or visit our website to schedule an appointment. Located in Monmouth Junction, NJ, Hyundai of South Brunswick is the #1 Hyundai Dealer in NJ. Our certified technicians are trained extensively on Hyundai maintenance and repair, from simple oil changes to complex repairs! Call us today or visit our website to schedule an appointment.