What Are the Reasons Why a Car Key Cannot Open the Door?

[VanGavin]

Reasons why a car key cannot open the door are as follows: 1. The remote key may not open the door due to a dead battery: Remote keys use button batteries, which may not be available at convenience stores. If there are auto parts stores or 4S shops nearby, they will definitely sell them. Owners can usually buy more online for emergency use. 2. The remote key is being interfered with by signals: Signal interference with the key is relatively rare. If the key battery is confirmed to have power, signal interference can be considered. 3. Fault in the connection device between the door handle and the door lock itself: This type of fault causing the door to not open is a malfunction, and the possibility of the owner fixing it themselves is very small. The door connection mechanism may have come loose due to driving vibrations, preventing the door lock from sensing the action of pulling the door handle. 4. The door is frozen and cannot be opened in winter: If the door lock, door handle, or door frame is frozen in winter, the key will definitely not open the door. Note: If the door is frozen, do not pull it forcefully, as this can easily damage the door.