The device includes a centralized warning system able to detect failures of systems of the aircraft and to display procedure lines on a screen, a procedure line including a text giving an indication of an action to be executed at least in the case of a failure, a semantic analysis module for determining from a current procedure line if the action to be executed is associated with a controllable control button and for implementing a semantic analysis of the text of the procedure line using word recognition and in order to derive therefrom indications relative to the controllable control button, these indications including at least an identification of the control button, and a warning unit receiving these indications and being able to warn a member of the crew.