What does ATC (Automatic Traction Control) do?

Automatic Traction Control (ATC) is a system designed to enhance vehicle traction by managing the distribution of power between the wheels. When a wheel begins to spin faster than the others due to loss of traction (for instance, on a slippery surface), ATC intervenes by reducing engine power, applying brakes selectively, or transferring power from the spinning wheel to the wheel with more grip. This mechanism effectively helps the driver maintain control of the vehicle, especially in challenging driving conditions.

By transferring power from a spinning wheel to one that has better traction, ATC helps in maintaining grip, thus preventing wheel spin. This is particularly important for heavy trailers, as maintaining traction is crucial for safety and stability. The ability of ATC to direct power where it's needed most is essential for effective vehicle handling and performance, making this answer a key aspect of how Automatic Traction Control operates.