When you move the lever to the AUTO position while driving in rainy weather, the wipers operate based on the amount of detected rainfall.
Rotate the adjustment ring to adjust the rainfall sensor sensitivity. Set the wipers to OFF when the rain stops.
In cold weather, the blades may freeze to the windshield, becoming stuck. Operating the wipers in this condition may damage the wipers. Use the defroster to warm the windshield, or manually clear the windshield of ice and snow before turning on the wipers.