If your vehicle is showing door weather seal torn, degraded, or hanging loose, here are the most likely causes and the parts you'll need to fix each one.
Over time, rubber seals dry out, lose their elasticity, and crack due to UV exposure and extreme temperature fluctuations.
The seal is frequently rubbed or snagged by shoes, clothing, or cargo when entering and exiting the vehicle, eventually tearing the rubber.
The factory adhesive degrades or the hidden plastic retaining clips break, causing the weatherstrip to hang loose even if the rubber itself is intact.
Moisture on the seal can freeze the door shut against the frame in cold weather. Forcing the door open rips the rubber seal away from its mounting.
If the door was recently repaired, painted, or had the window regulator serviced, the seal may not have been properly seated in its channel or glued back into place.