# Inspecting and Bleeding Brakes

The pads should be removed at regular intervals and checked for wear or glazing. If they need replacement, see our [page on brake pads and rotors](/tunables/brake-pads-and-rotors.md).

### Brake-light pressure sensor

The small pressure switch that triggers the brake lights threads into the rear brake line. It is a known wear item — the switch body can crack at the threaded fitting under repeated load, and **when it lets go it lets go as a brake-line failure**, not a brake-light failure. We have seen this take cars out on Lap 1 of Race 1.

Inspect at every brake-pad change:

* Look for any weep, residue, or staining around the sensor body and its line connection.
* Wiggle the sensor by hand. Any movement at the fitting means it's done.
* If you can't remember the last time it was replaced, replace it.

Switches are inexpensive and stocked by your dealer or RAW. Order a spare to keep in the trailer.


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