When you open the door, the sensor should buzz to remind you if you left the lights on. It also signals the window to jump down a quarter inch and then go back up a quarter inch when the door closes. It doesn’t because the part fails and you have to have the door panel removed and the whole door latch replaced. How much do you want to shell out this time $1,000? $2,000? Because you’re going to forgets to switch the lights off and kill your battery and have to get stranded. I guarantee it.