A vehicular parking assist system includes a plurality of sensors disposed at a vehicle and sensing exterior of the vehicle. The vehicular parking assist system, via processing of captured sensor data, and while the vehicle is conducting a parking maneuver, detects an object and tracks location of the detected object relative to the vehicle until the detected object leaves a field of sensing of the at least one sensor of the plurality of sensors. The system, after the detected object leaves the field of sensing of the at least one sensor, predicts location of the detected object relative to the vehicle. The system, upon completion of the parking maneuver, determines that the detected object is hazardous based on the predicted location of the detected object relative to the vehicle, and responsive to determining that the detected object is hazardous, restricts opening of a door of the vehicle.