A quiet cabin is one of the things drivers expect from their cars, so hearing a high-pitched whistle every time they get up to highway speed can be frustrating. The sound might seem minor at first, but it can quickly become an irritating distraction on longer journeys. In many cases, the source can be your car door, window, or side mirror.
The good news is that a whistling car door doesn't necessarily mean an expensive repair is coming. In many cases, the noise is caused by worn rubber seals, a small gap around the window, or a door that no longer sits quite right against the body. Finding the source is the important part.
