Vehicle systems for providing alerts of opening doors are disclosed. A system includes a camera configured to output image data of a vehicle occupant, an external environment sensor configured to output an external environment sensor output signal, one or more processors communicatively coupled to the camera and the external environment sensor, one or more memory modules communicatively coupled to the one or more processors, and machine readable instructions stored in the one or more memory modules. The system receives the image data of the vehicle occupant, predicts whether a door of the vehicle is going to be opened based on the image data of the vehicle occupant, determines whether an object is present based on the external environmental sensor output signal, and generates an alert in response to predicting that the door of the vehicle is going to be opened and determining that the object is present.