What does the brake system warning light indicate?

The brake system warning light is specifically designed to alert the driver to potential issues within the braking system. When this warning light illuminates, it signals that there may be a malfunction, such as low brake fluid, worn brake pads, or other issues affecting the braking mechanism. The braking system is critical for vehicle safety, so any indication that it isn't working properly should be taken seriously, prompting the driver to check the brake system immediately.

By contrast, the other options do not relate to the brake system warning light. An oil change is indicated by a separate warning light, tire inflation issues typically would trigger a tire pressure monitoring system warning, and problems with headlights would have their own dedicated indicator as well. Understanding these details helps emphasize the importance of responding to warnings specific to each vehicle system.