I’ve got a 2015 Prius. Recently, it has started making a whining noise every 15 seconds or so beginning when I unlock the vehicle, throughout my drive, and after I shut the vehicle down and lock it. It takes a bit after shutting down for the sound to go away. I was able to see what is causing the sound, just have no idea what it is. Can anyone help with solving my problem? I’d love to fix it on my own without taking to the dealer, if possible. I’ve attached a video below that shows the sounds and is zoomed in to the part making the sound.
Google is requiring a login screen to see what you posted and I'm already logged into my Google account.... To protect Priuschat from spammers we require new user to be moderated for their first 5 comments or posts. Once you get past that you'll be able to post links & stuff.
"I was able to see what is causing the sound, just have no idea what it is." Okay, then WHAT is it? And since you can "see" it, you can likely fix it?
Describe the location. If its under the hood, back drivers side its probably your brake booster assembly going bad. Fairly expensive and somewhat difficult diy. A good installed dealer price is around $2500 due to a $850 part and lots of labor and use of Techstream to flush and calibrate However when it fails you will gets several warning lights, codes and perhaps weak brakes.
