OCTOBER 8 2020, 5:00PM. HEAVY TRAFFIC ON I-5 NORTH AT ANAHEIM, CA NEAR HARBOR BLVD/BALL RD EXIT. I HAD JUST CHANGED LANES TO THE RIGHT IN PREPARATION TO TAKE THE EXIT. DUE TO HEAVY TRAFFIC, MY SPEED WAS APPROXIMATELY 10 MPH. IMMEDIATELY AFTER SETTLING TO THE NEW LANE, TOYOTA RAV4 IN FRONT OF ME BRAKES AGGRESSIVELY. I WAS ABOUT 6 FT FROM THIS CAR, AND IMMEDIATELY PRESSED MY TESLA Y BRAKE PEDAL HARD IN AN ATTEMPT TO AVOID COLLISION. BUT, MY TESLA Y WOULD NOT STOP. THE WHEELS DID NOT LOCK INTO FULL BRAKING. TESLA'S AUTOMATIC EMERGENCY BRAKING DID NOT ENGAGE, AND ITS COLLISION WARNING SYSTEM DID NOT ALERT ME. AS I AM PRESSING THE BRAKE PEDAL HARD, ALL I CAN DO IS TO WITNESS THAT WE WILL COLLIDE. NONE OF TESLA Y'S SAFETY FEATURES ENGAGED TO SAVE ME FROM THIS COLLISION.*LN*JB