Abstract: A driver safety parameter display apparatus for a motor vehicle includes a housing assembly and a timer assembly for recording time data for time of operation of the motor vehicle. A computer processor assembly is electrically connected to the timer assembly for receiving time data signals from the timer assembly. An array of individual illumination assemblies is supported by the housing assembly and is visible from outside the housing assembly. The illumination assemblies are electrically connected to the computer processor assembly for indicating sequentially and cumulatively an accumulation of time of operation of the motor vehicle. A connector assembly is provided for mechanically connecting the housing assembly to an outside surface of the motor vehicle. The array of illumination assemblies includes nine illumination assemblies arranged in a matrix of three rows and three columns and includes a tenth illumination assembly placed aside the matrix of illumination assemblies.