Driving on the highway going 55 mph when the car in front of me in the left lane more than 5 car lengths began to break, recognizing this I put my blinker on and tried to switch to the right lane when suddenly the automatic breaking kicked in and slowed the car down to a near stop. I was unable to deactivate with the break or the gas for a few seconds and by that time I was stuck between the lanes nearly getting t-boned in the right lane before the car swerved to avoid my vehicle. Had there been someone behind me in the left lane I would have surely been in a terrible and fatal accident. I was in complete control of the car and received no more than a one second warning (in the form of a short beep) that the automatic breaks would kick in suddenly. This put myself and my passenger in serious danger. This is not the first time this has happened and has happened as I have approached an exit on the highway as well. Again, fortunately no one was driving behind me that time as well. There is something seriously wrong and I no longer trust the safety of my vehicle. There is also no way for me to turn this feature off until there is a formal recall issued. The dealership says there is no active recall therefore I will need to pay $175 to get the issue checked out.