The vehicle is available for inspection upon request. While utilizing Super Cruise on the interstate in stop and go traffic conditions, the vehicle will come to a complete halt and jerk (as though you I slammed on the breaks). This has happened approximately 4 times and each time, driving conditions were good and during hours of daylight. The halt is very violent and causes the vehicle behind me to slam on their breaks. The latest instance occurred on Tuesday May 29, 2025 and forced the vehicle behind me to swerve off of the road. The emergency breaking warning does not sound nor is there a reason for it to do so as it has happened when the vehicle in front of me is moving with traffic and has not slowed down or applied breaks. The super cruise system also does not disengage or say that the road information is unavailable. The vehicle simply comes to an abrupt halt, to the point where if things are in the seats they will fly forward and then the system behaves as though nothing has happened. Traveling speeds vary between 10-20 mph when it malfunctions. The problem has not been reproduced and it shouldn’t because it is a serious safety hazard for the driver and other commuters on the road. I was told a module software update would fix the issue however that did not. There were no warning lights that occurred prior to any of the instances.