2010 Toyota Prius electrical system problems

On 05/25/2016 at about 9am, while in motion at a rate of speed approx 25 MPH on a street during construction (don't know if the bumpy road had anything to do with it), the change oil soon light appeared and seconds later all the lights on the dash came on with the message to check the "check hybrid system" . I tried to stop the vehicle and it kept accelerating. I pressed on the breaks really hard and the traction control light kept flashing on and off like crazy but it barely had any impact.

My prior prius was repurchased by toyota 09/09 with severe electrical issues which only escalated. I believe the man in ca because that happened to us on the highway, and our car behaved as if it were 'possessed'. Now my 2010 is having intermittent issues, including an anti-skid/ braking light that we'd thought was remedied by resetting an ABS actuator friday-it was on since test driving the car-but I was told many excuses, and eventually they were aware but did not know how to correct this.