What Are the Signs of a Dead Car Key Battery?

[SanEmily]

There are several signs indicating a dead car key battery: 1. The remote control range becomes shorter. Previously, you could unlock the car from five or six meters away, but now you have to be very close to the door for it to respond. This is likely due to low battery voltage in the key, which reduces the remote's signal transmission capability, resulting in a shorter range. 2. Occasional malfunctioning. When trying to unlock the car, you may need to press the button multiple times before getting a response, and it might take several attempts to successfully unlock. This is a strong indication that the remote battery is nearly dead. 3. If the dashboard displays a 'Key Not Detected' message when you are sitting in the car with the key, it can almost certainly be concluded that the key battery is dead.