Systems and methods may provide for determining a first proximity status of a first mobile device with respect to a vehicle, and determining a second proximity status of a second mobile device with respect to the vehicle. Additionally, an accessibility of one or more functions of the vehicle may be configured based at least in part on the first proximity status and the second proximity status. In one example, a policy associated with one or more of the first mobile device and the second mobile device may be identified, wherein the accessibility is configured further based on the policy.