Traction active what do that mean

when the wheels slip the computer detects it and reduces how fast the engine will spin to allow you to get the car moving without continuing to spin the wheels. If the light stays on even after your moving their is a malfuction in the system and it needs to be serviced. This also happens if you try to spin the tires on a hard acceleration and it will reduce the rpms so you won;t squeel the tires. Most cars have a button to turn it off (will say traction off when pressed) and will allow the wheel slippage, then its all the driver to keep the wheels from slipping..