Control for digital display unit

A control arrangement for a display unit for a motorized vehicle for digital presentation of different operational data of the vehicle including a housing having a display face, a digital indication window in said display face having a larger dimension and a smaller dimension, at least one first switch for continuous scanning of available operational data and one second switch for erasing operational data relative to a vehicle trip segment, wherein the improvement comprises a single push button (13) located in said housing and accessible on said display face (11) for operating said first and second switches (21, 22) and said button having a rectangular shape in the plane of said display face and said rectangular shape having one dimensional at least equal to the smaller dimension of said indication window, and said push button being pivotally displaceable inwardly into said housing about an axis extending generally parallel to said display face, said housing having an opening in said display face with a rectangular shape corresponding to the rectangular shape of said button and said button being located in and extending through said opening so as to be guided therein, said button further having laterally extending projections arranged so as to project within said housing and bear against said display face, and further comprising a spring arranged so as to bias said push button in a direction out of said housing.