Build Up or a Jam in the Car Door Lock Many things can build up in the car door lock. Rust, dirt, and grime can easily build up and jam the car door lock in the locked position. Also, an internal part ...

Preventing Rust If rust is the main issue, it is important to prevent it from reoccurring. You should insect your locks and car regularly for signs of rust. Do not allow water to pool in the key ...