What is a primary action to take when you experience a trailer swerving?

When experiencing a trailer swerving, one of the primary actions to take is to slow down gradually. This response is critical because it helps to reduce the speed of the vehicle and trailer, thereby decreasing the dynamics that contribute to swaying. A gradual reduction in speed allows for better control over the vehicle and helps stabilize the trailer, minimizing the risk of a full skid or jackknife situation.

In contrast, other options can exacerbate the issue. If counter-steering is employed excessively, it may lead to further instability. Accelerating while the trailer is swaying can worsen the swerving and potentially lead to a loss of control, as the increased speed magnifies the forces at play. Changing lanes abruptly can also create additional challenges, as it may lead to unexpected interactions with other vehicles. Excess speed and sudden maneuvers can make it extremely difficult for a driver to regain control, making the action of slowing down gradually the safest and most effective response in these situations.