i have had multiple incidences over the past year where in stopped traffic, the car will suddenly slam on brakes as all cars start to pull off in traffic. I have almost been rear-ended by the car behind me with these sudden stops. Often when this happens I try again to pull forward and it will slam on breaks again and I have to quickly put it in park and then drive again to get it to let me begin to drive forward. There is nothing blocking my path forward. This usually in multi-lane traffic stops, so it appears that it is confused by the movement of cars in front of me and beside me. I did take it to the dealership and they could not replicate the issue since it is intermittent. They did not see any error codes that were logged either so couldn’t help me with the issue. I also receive for long periods of time when driving more than one hour a message on the instrument panel that says