What to Do When the Car Key Can't Unlock the Door?

[AlainaRose]

Reasons why the car remote key can't unlock the door: 1. Check the battery: There are usually two possibilities: the car battery is low on power, or the key battery is dead. Regardless of how you plan to handle or repair it later, the first priority is to use the spare mechanical key to open the door. 2. Check the remote lock: First, see if the indicator light on the remote flashes when you press the unlock button. If it doesn't flash, the issue lies with the remote itself. If it flashes but the car's central locking system doesn't respond, troubleshoot the central lock unlock wiring. 3. Check the electromagnetic lock: Use the key to lock the driver's door and see if the other locks engage. Remove the front driver's door panel to inspect whether the electromagnetic lock inside is properly positioned and check if the iron pull rod inside the door is functioning correctly.