Usually, that means that there is something wrong, somewhere, in the Anti-lock Brake system.
Someone has to "troubleshoot" the system to determine what the fault is that's causing the light to stay on. It could be anything, including a defect in the warning wiring itself, but usually means there is something wrong with the braking system.
Get it checked out by a QUALIFIED automotive brake tech or mechanic.
It means you have an issue/fault with your ABS
ABS means Anti-lock Braking System. If the light is on and stays on, your ABS system has malfunctioned somehow and is not operating.
The abs light comes on and stays on when the computer detects a malfunction and sets a code.
The ABS light is the light for the Anti-Lock Brake system. If the light stays on then there is a problem with the system. Your normal brakes will still work, but your ABS may not. Have it looked at by a professional.
The abs system is the anti-lock break system you shoud have your breaks checked as soon as possible
Fix the fault in the ABS system
It stays on when a malfunction is detected. See related question below.
abs light is anti lock braking system. if this light stays on it can result in an mot failure.
You need to inspect the ABS units
usually broken abs sensor
its your abs brake light coming on it stops car skidding on wet roads
"Antilock Brake System"