What action does the ATC take when it detects that a drive wheel is spinning?

When the Anti-lock Traction Control (ATC) system detects that a drive wheel is spinning, it applies the brake to that specific wheel. This action is vital for maintaining traction and stability while driving, especially under slippery conditions. When wheel spin occurs, it indicates that the wheel is losing grip on the road surface; by applying the brake, the ATC helps to prevent further spinning and allows for better control of the vehicle.

This corrective measure is crucial for enhancing safety, as it helps the driver maintain directional control and prevents the vehicle from sliding. The ATC system is designed to engage rapidly and effectively to mitigate the risk of losing traction, demonstrating its role in improving vehicle handling under adverse conditions.