TL* THE CONTACT OWNS A 2017 CHEVROLET TRAX. THE CONTACT STATED THAT WHILE ON THE FREEWAY ON AN INCLINE AND WHEN LED OFF THE BRAKE, THE VEHICLE ROLLBACK AND CRASHED INTO ANOTHER VEHICLE. NO WARNING LIGHTS ILLUMINATED. THE CONTACT NOR THE OTHER DRIVER WAS NOT INJURED. A POLICE REPORT WAS NOT FILED, THE CONTACT STATED THERE WAS NO DAMAGE TO NEITHER OF THE VEHICLE. THE VEHICLE WAS TAKEN TO GORDON CHEVROLET, INC (1850 FORD RD, GARDEN CITY, MI 48135) AND WAS DIAGNOSED AND THE CONTACT WAS INFORMED THAT THE VEHICLE WAS NORMAL. THE VEHICLE WAS NOT REPAIRED. THE CONTACT MENTION THAT WHEN THE VEHICLE IN HER DRIVEWAY IT WILL ROLLBACK. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 46,000.