OUR 2016 TESLA MODEL S DROPPED THE LEFT REAR WHEEL COMPLETELY WHILE MY WIFE WAS DRIVING ON FREEWAY 5 NORTH BOUND LAST SATURDAY NIGHT (08/19/2017) IN SAN JUAN CAPISTRANO AREA, RIGHT BEFORE EXIT 81. THE ROAD IS SMOOTH AND WITHOUT BUMP OR SHARP TURN. ALL OTHER CARS WAS ABLE TO RUN BY NORMALLY. THE RIGHT REAR WHEEL ALSO LOST A LOCKING NUT. THE ACCIDENT WAS VERY DANGEROUS, VERY SCARY! WE JUST HAD A ROUTINE SERVICE AT TESLA SERVICE CENTER THIS JUNE.