If inappropriate wheel spin is detected, the system reduces power to the wheel or wheels affected, or applies the brakes as needed to improve traction and prevent vehicle instability. (buyatoyota.com)
If separation occurs while the vehicle is being driven, it would create sudden vehicle instability, increasing the risk of a crash. (cheersandgears.com)
It engages automatically when it senses vehicle instability, and Institute research has found that ESC lowers the risk of fatal single - vehicle crashes by about half. (iihs.org)