How do you replace brake light switch for a 2005 gmc Denali?

To replace the brake light switch on a 2005 GMC Denali, first, locate the switch, which is typically mounted above the brake pedal. Disconnect the vehicle's battery to ensure safety, then remove the old switch by unplugging the wiring connector and unbolting it from its bracket. Install the new switch by securing it in place and reconnecting the wiring. Finally, reconnect the battery and test the brake lights to ensure proper functionality.