Ticking sound when braking at slow speed - WITH VIDEO AND SOUND

This is Toyota Prius 2010
Mileage : 116,892


I bought this car 6 months ago.


Everythings worked perfectly till this week.
The noise kept increasing, so I decide to record it through my dashcam.

Problem : the noise randomly occur during speed 15-0MPH while I press brake gently.

 

You said everything was working fine til this week. Is it the noise or are there dash lights or drive ability issues?

No, there is no dash light or drive ability issues. Every thing works fine...


Have you checked your brakes recently?

No, not yet. I will bring to mechanic shop tomorrow to check it.


Done any visual inspections ofnthenwheels and brake components?

It just happen on last Friday night, so I didn't bring my car to any mechanic shop yet. but tomorrow(Monday). I will go to mechanic shop to check more result.

Is only when you turn left, or is it also when you turn right?

It happens randomly, when I turn either left or right ,the noise usually come out. However, the noise always come out with the speed is below 14 mph, and it become louder when the car reduces speed nearly stop.

 

It always sounded like nuts and bolts rolling around loose inside the wheel cover.

Thank you for your reply and information. I will go to check on tomorrow for this issue.

 

I will let mechanic check pebble in my wheel again tomorrow.


here is my updated video

 

I went to mechanic.
Then he found out that this metal plate generate the sound because the nuts are lose, so he tight it back. This cost me only $20.



Thank you everybody for your suggestion. First, I thought that it might be brake regen problem.