Hello everyone, for a 2013 991.1, will a light come on on the dashboard when the brake sensors activate for low wear? Or is it just a squealing noise from the brakes?

thank you.

 

It's an electronic sensor, so yes a light will come on

 

I believe its that red wire on this video that monitor and activate on your dash if it's too low. Someone correct me if i'm wrong.
https://www.suncoastparts.com/product/991SENS.html

 

Thanks...when I purchased the car a few months ago I was told in the PPI that the brakes were pretty worn. Since then I’ve put 5k miles on it and still no light so I was starting to wonder if there is no light!

The brakes still work fine.

 

Check the sensor itself. If the part of the sensor makes contact with the rotor due to worn pads it will start to wear to the point that it will eventually burn thru the wires that complete the circuit for the sensor which will then trigger the light on your dash. However, its easy to just strip those wires and connect them to each other and not use the sensor anymore which wont trigger a light in the dash. For most dedicated track cars most do this as they check the brakes more often than the sensor will wear down.

 

If you are not doing hard braking on a regular basis, "pretty worn" brakes could go for quite a while. The sensors must be replaced once they trigger a low pad thickness, but can be reused with new pads before they signal if they aren't brittle and can be removed and reinstalled. For those that track their cars, pads are typically replaced at 50% thickness because they run hotter and are more prone to induce brake fade. That's why frequent track drivers simply remove the sensors. It simplifies pad replacement and they replace the pads far before the sensor will trigger.

 

i think I’m pretty easy on brakes...I don’t drive that hard and I often use the gears to slow down. Will be interesting to see how long I can go before that light comes on!

 

Drive harder. Save the slow driving for the future you when you are 85.

 

I was just told today that my rear pads are almost toast so this was a timely post. When I changed over to Summer rubber last week I did notice the rear pads are getting thin.

I'm going to see how many miles I can get on them before the warning light illuminates.