How do you replace a brake light switch in a 2001 Nissan Frontier?

To replace the brake light switch in a 2001 Nissan Frontier, first disconnect the negative battery cable to ensure safety. Locate the brake light switch, which is typically mounted above the brake pedal assembly. Remove the wiring connector and the switch itself, then install the new switch by reversing the process, ensuring it is properly adjusted to activate when the brake pedal is pressed. Finally, reconnect the battery cable and test the brake lights to ensure they function correctly.