Affects at least Model# JGS650SEF2SS
Per GE Techline the engineers omitted the L.E.D from the control PCB. So basically even though the display shows a place for the L.E.D indicator there is no L.E.D. installed. So if your new GE Range doesn’t show the Start Button indicator, it is working normally.
Perhaps GE will make a change in a future sub-version.
Here is a link to the Owners Manual if you need an extra.