The auto headlights n wipers use two different sensors mounted by the rearview mirror looking foward. BCM would probobly need programing and wiring added. I have em on my 16 mazda 6 gt and the auto wipers are neat but i dont think its worth the hassle to intall em. I may be wrong for all i know. The auto-wiper control may not operate when the rain sensor temperature is about －10 °C (14 °F) or lower, or about 85 °C (185 °F) or higher. If the windshield is coated with water repellent, the rain sensor may not be able to sense the amount of rainfall correctly and the auto-wiper control may not operate properly. The auto-wiper control may not operate when the rain sensor temperature is about -10 °C (14 °F) or lower, or about 85 °C (185 °F) or higher. If the windshield is coated with water repellent, the rain sensor may not be able to sense the amount of rainfall correctly and the auto-wiper control may not operate properly. The sensor area on the windshield is quite small and if there is only a slight drizzle there are problems with the rain sensing wipers. When the rain starts with a drizzle, the sensor doesn't seem to see larger drops when it starts to rain harder. That leads me to believe that the sensor firmware works on the principle of the difference in what Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. 1 (855) 347-2779 hi@yourmechanic.com. Common signs include wiper blades not turning on or off, wiper blades operating erratically, and motor not moving despite sounding like it's working. You can say "Turn on wipers" or "Wipers On". Also "Set Wipers to Low/Medium/High/Auto/Off" You can also specify the level of windshield wiper operation and state "Set wipers to 1/2/3/4/Auto/Off". FasterBlaster, cancoi, iustin and 1 other person. R. One owner reported, “My windshield wipers on my 2008 Mazda3 stopped working on the highway during heavy rain. Not only was this dangerous but also scary…” Another owner had a similar experience. “During a snow storm after traveling some distance, the wipers decided not to work. They just stopped. They wouldn’t stay running, so I had Find the most common driver-reported problems that are to blame when a 2016 Mazda CX-9 windshield wipers aren't working. See More 2016 Mazda CX-9 Problems Wipers Won't Park Due to Windshield Wiper Motor Failure ivJGzf.