Is your front left door on your Hyundai Santa Fe not locking or unlocking with the button or key fob? The problem is probably this little guy – the door lock actuator. This NewYall part is a direct replacement for the worn-out one in your car. It's specifically made for the driver's side (left) front door on a bunch of Santa Fe models: the regular Santa Fe (2013-2018), the Santa Fe Sport (2013-2018), and the Santa Fe XL (2013-2019). It's the whole latch actuator assembly, which means it should have all the bits you need to swap out. Fixing this will get your power locks working smoothly again so you don't have to manually lock that door from the inside every time. Makes life a lot easier, especially if you have kids or carry a lot of stuff. Just make sure your exact year and model match before you order.