If your vehicle is showing loud wind noise or whistling from doors or windows at highway speeds, here are the most likely causes and the parts you'll need to fix each one.
The rubber seals around the doors and windows dry out, shrink, or tear over time, failing to create an airtight seal against high-speed air.
A failing window regulator or motor may lack the strength to push the glass completely into the upper run channel, leaving a microscopic gap that whistles.
Worn door hinges or a misaligned door striker prevent the door from closing tightly against the body seals. This is also common after collision repairs.
A gap in the urethane adhesive or a loose exterior molding from a recent windshield replacement will catch air and create a high-pitched whistle.
If the plastic moisture barrier behind the interior door panel is torn or not resealed after a repair (like replacing a window motor), air entering the door shell can whistle through the interior door handle or switches.