A vehicle diagnostic display unit including a case, a display screen disposed within a front portion of the case, and a main support coupled to a side of the case for allowing a user to lift the vehicle diagnostic display unit with one hand. A navigation pad is disposed on a front surface of the main support, and the main support is configured to allow the user to simultaneously lift the diagnostic display unit and access the navigation pad with a thumb. The display unit also includes a user-replaceable, transparent protective cover that attaches to the front portion of the case over the display screen. The display unit and the protective cover include novel features that allow the protective cover to be replaced by a user without having to return the display unit to the manufacturer.

 
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