[mishref]

That same issue happened to me!

The dealer told me that the wiring harness going to the tranny was messed up. They are replacing the wiring harness.

I am wondering, did that fix you issues? My car freaked me out when it started doing that, If I were on a highway .. I probably would have caused an accident. Lucklily I was driving around my complex to park under a carport during a hailstorm.

 

[mishref]

Same here, one of the wires for the CAN data going to the transmission was loose or something. they replaced the wiring harness, everything is all good now.