Cause: The vehicles affected by this condition could have a faulty steering torque sensor that may not be capable of accurately measuring driver steering input. (bestride.com)
[2][7][8] In further contrast with VSC, VDIM can also calibrate driver steering input according to vehicle speed, with active steering and throttle adjustments to improve ride quality and directional control during performance driving, such as in slalom courses. (en.wikipedia.org)
Factors including speed, road conditions, weather and driver steering input can all affect whether VSC will be effective in preventing a loss of control. (toyotasantamonica.com)