An enhanced validation mode for a vehicle is provided. Presence of a primary access device is identified, using a radio frequency (RF) transceiver of the vehicle. Responsive to the vehicle being in the enhanced validation mode, aspects of a secondary access device are validated with an access list descriptive of which secondary access devices are allowable for use in confirming a user is authorized, in addition to utilizing the primary access device to validate access to the vehicle, the secondary access device being a physical credential issued to a user to grant the user access to a physical location. Responsive to the vehicle not being in the enhanced validation mode, the primary access device but not the secondary access device are utilized to validate access to the vehicle.