What action should you take if your vehicle hydroplanes?

When your vehicle hydroplanes, the most effective action is to ease off the accelerator. Hydroplaning occurs when water accumulates between the tires and the road surface, resulting in a loss of traction. By easing off the accelerator, you reduce the speed of your vehicle gradually, allowing the tires to regain contact with the road and helping restore vehicle control.

This response is essential as applying the brakes hard can worsen the situation and lead to skidding, while steering aggressively in any direction can result in loss of control or a spin. Turning off the engine is not an advisable response, as it would not address the immediate need for control during hydroplaning; the vehicle must be managed appropriately instead. Thus, easing off the accelerator is the safest and most effective action to take in such a scenario.