No Reverse lights on my G6

I have a 2007 G6, base model with 3.5 engine. with 110K.

The reverse lights do not come on in reverse.

They do turn on when it is dark and I unlock the car with the keyless remote.

I have replaced the neutral safety switch (used from junkyard)
I have tried new relay 33 (fuse panel in trunk)
I have swapped mini fuse 17 ( reverse lights) with fuse 5 (emissions) fuse panel in trunk
I have cleaned BCM connectors with contact cleaner and coated with dialectic grease.
Some posts are mentioning the BCM.

I did see a post on a G6 forum that showed everything that the BCM controls and it did not mention the reverse lights.
If it is the BCM. . . I know that I could replace it myself. But what needs to be reprogrammed after I replace it.

Any ideas?

Thanks in advance