2006 Prius Won't start - Ignition & Acc works fine

Over the last few months the 2006 Prius won't start, it acts as if the brake pedal is not pushed. It first turns on ACC & then Ignition if you push the Start button.

Keyfob and 12V battery seems fine. Also the brake pedal seems very firm. If you push on the brake pedal pretty hard and after a few tries it does seem to sense it and start.

My question is if I should reface the brake light switch or the brake pedal position sensor?
It seems like it is not sensing the brake pedal is pushed, not sure if it uses the position sensor to determine if it is pushed hard enough. Or is there perhaps another issues with the brake system.

Once you get it to start it seems to be fine for quite a while.

 

Haven't worked on the brakes for quite some time. I ordered a new Stop Light switch and will probably replace that and see. The brakes seem to get harder if you press the pedal, like on old vacuum boost if you don't run the engine.

Not sure I'm I'm dealing with a catch 22, can't start if the brakes aren't depressed and brakes need ignition to be in READY state to start the brake booster.

 

No OBD codes.

With the little required, made me wonder about the switches, but not sure if it is the stop light switch or brake position sensor.

 

Sorry, was a bit busy. There were no OBDII codes. I noticed the brake lights will flicker at times with light pressure, and tested it a bit. I replaced the Stock Light switch or Brake light switch - which is a huge PITA.

The brake lights seem to work fine now, and have not noticed the issue with starting again. Will keep an eye on it, to see if that is the cause.