2008 Mazda CX-9 Owner's Manual - Page 226

Driving Your Mazda Switches and Controls The sensitivity of the rain sensor can be adjusted by turning the switch on the wiper lever. From the center position (normal), turn the switch towards (+) for higher sensitivity (faster response) or turn the switch towards (_) for less sensitivity (slower response). Switch Less sensitivity Center position Higher sensitivity CAUTION Ø Do not shade the rain sensor by adhering a sticker or a label on the windshield. Otherwise the rain sensor will not operate correctly. Ø When the wiper lever is in the AUTO position and the ignition switch is in the ON position, the wipers may move automatically in the following cases: Ø If the windshield above the rain sensor is touched. Ø If the windshield above the rain sensor is wiped with a cloth. Ø If the windshield is struck with a hand or other object. Ø If the rain sensor is struck with a hand or other object from inside the vehicle. Keep hands and scrapers clear of the windshield when the ignition switch is in the ON position as fingers pinched or the wipers and wiper blades damaged when they activate automatically. If you are going to clean the windshield, be sure the wipers are turned off completely - this is particularly important when clearing ice and snow - when it is particularly tempting to leave the engine running. Rain sensor 5-64