Why can't the car's Bluetooth connect?

[VanEvangeline]

The reasons why the car's Bluetooth cannot connect: 1. The mobile device is out of the communication range of the car's Bluetooth; 2. Incompatibility between the mobile phone system and the car's Bluetooth system; 3. Unstable factors in electronic devices causing the car's Bluetooth to fail to connect; 4. The mobile phone Bluetooth has connection records with other devices or too many connection records; 5. Hardware device malfunction. The function of car Bluetooth is to automatically identify mobile phones, enabling connection with the phone without the need for cables or phone holders. The car owner can control the phone without touching it, even keeping both hands on the steering wheel, using voice commands to answer or make calls. Users can conduct calls through the car's audio system.