An ABS light that comes on or stays on while driving indicates _________.

Braking If ABS Is Not Working:
Without ABS you still have normal brake functions. Drive and brake as you always have.
Vehicles with ABS have yellow malfunction lamps to tell you if something is not working.
As a system check on newer vehicles, the malfunction lamp comes on at start-up for a bulb check and then goes out quickly. On older systems, the lamp could stay on until you are driving over five mph.
If the lamp stays on after the bulb check, or goes on once you are under way, you may have lost ABS control on one or more wheels.
Remember, if your ABS malfunctions, you still have regular brakes. Drive normally, but get the system serviced soon.