What are the reasons for a car's Bluetooth connection failure?

[VanNolan]

There are several situations where a car's Bluetooth may fail to connect: 1. Exceeding the communication range of the car's Bluetooth: When the mobile device goes beyond the communication range of the car's Bluetooth, connection failure may occur. Solution: Bring the phone closer to the car's Bluetooth device and reconnect. 2. System incompatibility: When the phone's system is incompatible with the car's Bluetooth system, connection failure may also occur. Solution: Update the phone's system to the latest version and reconnect to the car's Bluetooth system. 3. Unstable electronic device factors: Unstable factors in electronic devices may cause the car's Bluetooth to fail to connect. Solution: Restart the phone and attempt to connect to Bluetooth again.