Just picked up our "new" 2004 Prius from dealer. Used, 12,000 miles. Several miles later I noticed the driver's side headlight blinking intermittently and brighter than other one. I can see this as passenger in another vehicle, not the driver. What's going on?
Which package did you get on your car? If it's a package with HID lights (includes fog-lights), it could be a prematurely failing bulb or balast. If it's any other package with halogen lighting, you could simply be experiencing a poor connection. Either way, the car's still under warranty - have your preferred servicing dealer check into it.