Abstract: Techniques for automatic control of a vehicle are disclosed. The vehicle may include a removable input device having various modes of operation. For example, a coupled mode of operation may control the vehicle when an operator is in an operator area of the vehicle, while a remote mode of operation may enable vehicle control when the operator is outside of the operator area. The vehicle may include object sensors to detect a target such as the removable input device or an operator device. Accordingly, the vehicle may automatically follow the target. The vehicle may also identify obstacles, in response to which manual control of the vehicle may at least temporarily be provided to the operator, after which automatic control may resume.