What are the reasons why the Sylphy's one-button start cannot detect the key?

[VanValentina]

Sylphy's one-button start cannot detect the key due to reasons such as insufficient key battery, key malfunction, or electromagnetic interference. Insufficient key battery: If the one-button start cannot detect the key, the first thing to check is whether the car key still has power. You can try replacing the key's battery and then attempt the one-button start to see if it returns to normal. If it doesn't, it could also be due to poor battery contact, in which case the car key may need to be repaired. Key malfunction: You can try using the car's spare key to check if the first key is malfunctioning. If the spare key works, it indicates that the first key is faulty. If the spare key also doesn't work, you need to take the car to a repair shop for inspection. Electromagnetic interference: You need to analyze whether there are other sources of electromagnetic or signal interference. Sometimes, placing a phone and the car key together can cause interference, or the car's dashcam might also interfere with the car key. You can place the key in a separate location and try starting the car again. If it still doesn't start, you need to check the transmitter and receiver.