Hyundai of Turnersville

This service experience was terrible. Our 2012 Sonata 2.0T went in to have the temp sesnor replaced and ECM updates completed. Under warranty. Work was completed and the tech left a clamp loose which caused the trans cooler line to leak throughout engine bay and undercarriage. We lost power during busy highway and nearly caused major accident with our 7 year old in the car. Spoke with, "John" from service dept and the GM. Not helpful. In addition through service experience, svc dept kept using the wrong phone # to contact us, despite several attenpts to update our account info. Also attempted to "sell" us services we knew were not needed, i.e brakes, roters, oil change, and air filter. But did not mention the two "bubbles" in the rear tires after the multi-point safety check. Unacceptable. Lease for vehicle is over in 5/2016. Not sure we will be going w another Hyundai from Hyundai of Turnersville with this type of service. Not sure there is anything that can be done exceed my expectations as this Service Dept both attempted to take advantage of us by "selling" services we did not need and put our family's safety jeopardy through their incompetance and carelessness.