Today my check hybrid system message and yellow triangle warning light came on. About an hour before it happened I had to slam on the brakes really hard to avoid an accident. No codes from Autozone reader. I also notice now that my brake pedal will go all the way to the floor if I push it hard and sometime the traction and brake warning lights will come on when I do this. The yellow triangle and check hybrid stay on all the time.The car drives. Also battery and regen braking on the screen don't seem to be working properly. But the battery is charged somehow. I'm thinking that the problem is with the brake system and not the hybrid battery since I can push my brake pedal to the floor. Has this happened to anyone else.