What does it mean if the “ABS” light is on in a vehicle?

When the “ABS” light is illuminated on the dashboard of a vehicle, it indicates that there is an issue with the Anti-lock Braking System (ABS). The ABS is designed to prevent the wheels from locking up during braking, which can help maintain steering control and prevent skidding.

An activation of the ABS light signifies that the system has detected a malfunction, and it may not be functioning as intended. This issue could stem from various factors such as sensor problems, wiring issues, or hydraulic system failures. When this light is illuminated, it's essential for drivers to address the problem promptly to ensure the safety and effectiveness of the vehicle's braking performance. Regular vehicle checks can sometimes prevent ABS issues from arising, but the light specifically is a warning that immediate attention is required to diagnose and rectify the problem.