2008 Prius - Dash Lights Fail Intermittenly

I just bought a used 2008 Prius Base almost a month ago. The car had several "moderate" problems. I took it back to the dealer several times and they fixed all of the problems.

However, for some reason, the lights on the dash don't come on sometimes! They've replaced the instrument cluster/combination meter and the 12V batter since the car was in my posession. But the problem persists. I have been using the quick fix of unplugging/resetting the 12V battery but it's starting to be annoying.

I've noticed that whenever I use my head lights at night, the next morning is when I have this problem. Sometimes the lights come back on on their own and sometimes I use the quick fix.

When the dash lights go off, the rearview camera doesn't work, the car doesn't beep when doors are open or in reverse, can't see gas, mph, etc. And the screen doesn't measure the mpg while this is happening. The car drives perfectly while in this state by the way.

Also, the power button LED light is red most of the time. I also have to force power off the car because it won't turn off on it's own. And the horn beeps slightly when pushing the brake hard or holding foot on the brake at red lights.

Has anyone else experienced this, know what the problem is and how to solve it?



Posted via the PriusChat mobile app.

 

I actually do turn them off during the daytime. Would that cause the power button to be red and rear camera to fail too? All from using headlights?

Posted via the PriusChat mobile app.

 

That's what I was thinking but the dealer just replaced the 12V.

Posted via the PriusChat mobile app.