2011 Toyota Camry Latches & Locks Problems

TL* THE CONTACT OWNS A 2011 TOYOTA CAMRY. WHILE PARKED, THE CONTACT NOTICED THAT THE FRONT PASSENGER SIDE DOOR AND BOTH REAR DOORS WOULD NOT UNLOCK WHEN USING THE FRONT DRIVER'S SIDE LOCK SWITCH. THE CONTACT ATTEMPTED TO UNLOCK THE DOORS USING THE KEY FOB FROM THE EXTERIOR OF THE VEHICLE, BUT THE DOORS WOULD NOT UNLOCK. THE FRONT DRIVER'S DOOR WOULD UNLOCK AND DID NOT EXPERIENCE THE FAILURE. THE FAILURE OCCURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR A DIAGNOSTIC TEST. THE TECHNICIAN WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 15,000.