How do you replace the rear brake light switch on a Lexus rx 300?

To replace the rear brake light switch on a Lexus RX 300, first, disconnect the negative battery terminal to ensure safety. Then, locate the brake light switch, which is typically found above the brake pedal. Remove the wiring harness connected to the switch, unscrew it from its mounting, and replace it with the new switch. Finally, reconnect the wiring harness, reattach the battery terminal, and test the brake lights to ensure proper functioning.