How do you change the brake light switch on a Lexus RX330?

Changing a Brake-light Switch

I am not familiar with your Lexis, so this answer will be generic in nature and applies to all vehicles requiring replacement of their brake light switch.

Here is the procedure:

  • Locate the brake light switch.
  • Disconnect the wiring harness connector and move the harness out the way so you can work without tangling in it, and thus possible damaging it.
  • Remove the switch from its mounting.
  • Install the replacement switch.
  • Reconnect the wiring harness connector to the replaced switch.
  • Properly adjust the newly installed switch so that it is off when the brake pedal is not depressed, but does come on when the pedal is depressed.