Two problems related to brake light have been reported for the 2009 Toyota Prius. The most recently reported issues are listed below.
One week after being at the dealership for its routine oil/vehicle check-up (55,000-60,000), my red brake light, the yellow warning sign and the abs lights come up on my dashboard. Towed it back to dealership since the breaks didn't work. They found I needed to change my brake actuator and the solenoid that is stuck. According to what I've read, this should not happen period paragraph but if it does it would be on a much older vehicle with a lot more miles with a stop and go history. According to the customer service representative at the dealership this is a malfunction of the part. When I called Toyota they gave me the go around about being out of warranty. I need help. Also there is a reflective line of light that shines on the driver side of the window from my dashboard.
While driving at night, the passenger headlamp assembly (every bulb, not just the main high-intensity bulb) went out. Wiggling the connector at the back of the headlamp assembly when the headlamp gets in this condition does not fix the problem. I can get the assembly back in working condition by turning off the lights and turning them back on again. This is dangerous! when the light came back on again, it was slightly flickering at first and now seems dimmer than the driver side light. I have also had connector-related issues on the rear brake lights, where they go out at random times. Turning the lights on and off does not work to get the brake light working again. I have to manually tighten the connector at the back of the brake light assembly to get the light working again.