I purchase 2019 nissan sentra on 11/6/2019 with 15 miles at nissan of muskogee. since purchase the automatic emergency braking (aeb) system deactivates and shows a warning on the dashboard 'front radar unavailable due to obstruction.' a crash icon also on dashboard at all times. no cruise control. the car is out of balance. the sensor comes on at all time wether or not there are other vehicle near the car. the dealership and service department alleges that i am the only one with this problem and the parts not available. i brought it in to service. the dealership service barely look at the car nor check codes. the balance is worse. this is cause by a faulty defective radar sensor in the front grill. service is now waiting for parts that nissan can't get anywhere.