A mobile device is described herein that provides a user interface experience to a user who is operating the mobile device within a vehicle. The mobile device provides the user interface experience using mode functionality. The mode functionality operates by receiving inference-input information from one or more input sources. At least one input source corresponds to at least one movement-sensing device, provided by the mobile device, that determines movement of the mobile device. The mode functionality then infers a state of the vehicle based on the inference-input information and presents a user interface experience that is appropriate for the vehicle state. In one scenario, the mode functionality can also infer that the vehicle is in a distress condition. In response, the mode functionality can solicit assistance for the user.