Purchased on May 15, 2015, now out of service on May 26, 2016. It has worked great to this day when the driver's side window got stuck in the down position in the rain and hail. I turned off the car, unplugged it and checked that there was no damage to the connectors, wiring or device. All other functions of the device still worked, window lock, other window control, mirror control, lighting, only driver's window control did not work. I went to my local mechanic that I use for work and they replaced the window switch with an OEM switch and it started working normally again. Test Dorman again and it still doesn't control the driver's side quarter window. It worked great until it failed. I've just received some other Dorman products and am wondering if I should return them while I still can.