To find it:
1. Consult your owner's manual: This is the most reliable source. It will show you a diagram of the fuse panel with the location of each fuse clearly labeled.
2. Look for a fuse labeled "Brake Lights," "Stop Lights," or a similar designation. The amperage rating might also be indicated.
3. If your manual doesn't clearly identify the brake light fuse: There might be a separate fuse for the brake lights within the interior fuse panel, or the problem could be related to a wiring issue or the brake light switch itself, rather than a blown fuse. In that case a visit to a mechanic might be required.
Important Note: Always turn the ignition off before checking or replacing fuses. Improper handling can lead to electrical shock.