TL* THE CONTACT OWNS A 2015 CHEVROLET IMPALA. WHILE DRIVING 20 MPH SMOKE WAS DETECTED FROM UNDERNEATH THE HOOD. UPON EXITING VEHICLE, THE CONTACT NOTICED OIL EMERGING FROM ENGINE. THE LOW OIL PRESSURE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO STATED THE ROCKER ARM CONTROL NEEDED TO BE REPLACED. THE CONTACT CALLED HERRIN-GEAR CHEVROLET (1685 HIGH ST, JACKSON, MS 39202 601) 354-3882) WHOM INFORMED HER THAT THE PARTS WERE ON BACK ORDER. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 104,928.