Thanks Greg, when in reverse, it does light up reverse on the dash. When in neutral it lights up as reverse on dash. When in high, it lights up as neutral. It seems like it might be going farther forward but I am not positive.
Yes, brake is applied when shifting.
When I shifted to what should be high gear and it lighted up as neutral, and then, when I applied the gas, it was indeed in neutral and did not move. In reverse, the unit moves in reverse as expected.