A method for warning other road users in response to a vehicle traveling in a wrong direction, the method including advance detection, setting-up, detection, and provision. In the step of advance detection, a potential of a possible instance of wrong-way travel of the vehicle is detected in advance. In the step of setting-up, a communication path to at least one road user endangered by the instance of wrong-way travel is set up, if the wrong-way travel potential is greater than an advance warning value. In the step of detection, the instance of wrong-way travel of the vehicle is detected. In the step of provision, an information item about the instance of wrong-way travel is provided for the endangered road user via the communication path set up, when the possible instance of wrong-way travel is detected as an actual instance of wrong-way travel.