What does it mean if the ABS warning lamp on a school bus stays lit after startup?

Pick an answer

1. The bus has lost all braking ability and must not be moved until a mechanic has looked at it
2. The bus is due for an oil change
3. The fuel level is critically low
4. There is a malfunction in the antilock braking system, though the regular brakes still work

Correct!

Not quite. The correct answer is highlighted.