While its safer to come to stop before shifting the trans shift lever, I wonder if shifting to neutral to drive would put the trans back in drive again.
Unlike a mechanical shifter, if the trans bumped itself into neutral it would pull the shift lever with it. With the digital shifter, if the trans bumps itself into neutral, there is nothing to move the shifter lever. Its just reads the position you move the dummy lever and sends a signal to the trans to reflect where your moved it. So moving the lever sends the signal again to put the trans back in the gear it should be.
So again, pure guesses, a shifter module going bad might be sending stray signals to the trans without moving the lever and cause it to shift into neutral. OR, somehow you're getting noise in the circuits that is creating a stray signal to the trans and causing it to shift. e.g. notice how when you drive under power lines and having the radio tuned to certain radio stations (usually AM) will cause all sorts of noise to come over the radio. Like turning the blender on and it causes the TV to develop snow on the screen. That can happen in the wiring, even ignition of other sources in the vehicle can do it, suddenly you have a signal on the wire you never generated, and although unlikely, its always possible something on the vehicle reads it as an actual signal and NOT noise and reacts to it like its an actual signal.
In the 70's and earlier, hot rodders would use solid metal ignition cables, cause it was more reliable and made a hotter spark, sure it created so much electromagnetic interference (EMI) that you couldn't listen to the radio, it was just loud clicking at the same frequency as the engine rpm, but it was a race car, you didn't need a radio. After the 80's, that was dead, because all the vehicles went to digital engine controls, and the EMI from solid metal ignition cable introduced so much noise into the circuits for sensors and controls, the digital controls couldn't work and the engine would stall or do all sorts of unintended things.
Put solid metal ignition cable (unshielded) on your commander, and I bet the motor won't even run and while cranking it, you'd likely get all sorts of unintended things happening from stray signals created by the EMI.
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