2010 Prius IV just over two years old with 19600 miles. Car has been trouble free and is well maintained with oil changes every 5000 miles. Sitting in garage and won't start. Green light comes on when pressing the brake but ready light does not illuminate. When I press the power button anyway literally every warning light on the dash lights up but the master warning light does not give any further indication of what is the problem. After a few seconds all the warning lights begin to cycle on and off. I feel like I'm on the bridge of the Enterprise and being attacked by the Borg! I do have lights, the clock is keeping time, doors lock and unlock, although illumination is down by about 20%. The HSI doesn't come on the off course the motor doesn't start. Tried holding the key to the power switch as suggested in the manual but it doesn't work. Tried my second key to no avail. Obviously will contact the dealer but any insights or suggestions would be much appreciated.