2012 prius wouldn't start

Hi! Yesterday I got back home and turned off the car and got out to lock it with the fob but the car didn't lock. I tried going back in and turning the car back on to see if it would do something but when I pressed on the brake (all the way) i heard the buzzer sound but the power button didn't light up at all like it usually does. The security immobilizer sign also stopped showing up (the red blinking light when the car is off). But if i open the door the door light shows up on the dashboard as well as the headlight and high beam light shows up. The headlights, high beams, and dome lights turn on and the car is honking. This is the third time something like this happened.