Dashboard is closely tied with basic dashboard (usual screen) in software. If you can change text in some field of dashboard you may change a proprietary record in your locale text source (glx file). For test try change a text for Speed to Be easy!:

Spoiler: CLICK
<entry handle="MAP_SPEED">
<strings>
<string default="true">
<visual>Be easy!</visual>
</string>
</strings>
<usage visual="true"/>
</entry>