As a general rule, a warning light in the instrument display will be a fail point if it indicates the failure of a component that is also part of the test procedure. For example, an ABS warning light ...

Brake pads are among the most crucial components of a car that are considered normal wear items to maintain ... of worn brake pads via a dashboard light or on-screen message.

Brake pads do not last indefinitely, so it’s important to monitor for signs indicating that they need replacement. The frequency with which you should change your brake pads is about 30,000 ...