TL* THE CONTACT OWNS A OWNS A 2011 LEXUS ES350. THE CONTACT STATED THAT THE DRIVER EXITED THE VEHICLE AND FORGOT TO SHUT THE IGNITION OFF. THE VEHICLE WAS EQUIPPED WITH A PUSH TO START AND STOP FEATURE. THE ENGINE CONTINUED TO RUN UNTIL A CARBON MONOXIDE DETECTOR SOUNDED. THE DRIVER SUFFERED CARBON MONOXIDE POISONING AND AS A RESULT, WAS TAKEN TO A HOSPITAL TO TREAT THE CONDITION. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN. THE VIN WAS UNAVAILABLE.