What to Do When the Car Key Won't Open the Door?

[AveryLee]

Modern car keys come in two types: remote keys and mechanical keys. Depending on the type of key that won't open the car door, there are different solutions as follows: 1. If the remote key won't open the door: It might be due to a dead battery in the remote key, a dead car battery, or strong signal interference nearby. In this case, replacing the remote key's battery or locating the hidden mechanical key inside the remote key can help open the door. However, manufacturers often hide the keyhole for aesthetic reasons. To use the mechanical key, look closely—usually, there's a decorative piece at the end of the door handle similar in size to the key. Pry it open to access the keyhole. 2. If the mechanical key won't open the door: There are two possibilities. One is that the car's central locking system is in an electronic lock state, requiring a wait of one to two hours for the lock to disengage before attempting again. The other is that the door lock cylinder is stuck due to long-term use and won't turn. In this case, the only options are contacting a 4S store for repairs or resorting to forceful methods, such as breaking the window.