Which action should be taken first when you notice rain while driving?

When you notice rain while driving, the most critical first action to take is to slow down. Rain creates a slippery surface on the roads, which can significantly reduce traction and increase the risk of hydroplaning. Reducing your speed allows for better control of the vehicle, more reaction time to any potential hazards, and generally makes driving safer in wet conditions.

While turning on the windshield wipers is also important for maintaining visibility, allowing for clearer sight of the road and surroundings, it is secondary to adjusting your speed in response to the change in driving conditions. Changing lanes may not be necessary and could create additional risks if done abruptly. Using high beams is generally not advisable during rain, as the light can reflect off the raindrops and reduce visibility instead of improving it. Therefore, the priority is to slow down to ensure safety on wet roads.