When your Xiaomi 15 Ultra refuses to connect to your car’s Bluetooth system, hands-free calls and music streaming become impossible. This issue often shows up suddenly, even if Bluetooth worked before. In most cases, the problem is caused by pairing conflicts, temporary software glitches, or outdated car system data, all of which can be fixed with a few clear steps.
Why Your Xiaomi 15 Ultra Can’t Connect to Car Bluetooth
- Bluetooth pairing data is corrupted or outdated.
- The phone is still connected to another nearby Bluetooth device.
- Car infotainment system is stuck or not discoverable.
- Bluetooth permissions are restricted on the phone.
- Temporary software bugs after a system update.
1. Turn Bluetooth Off and On Again
Bluetooth may appear active but fail to establish a proper connection. Restarting it forces your phone to rescan nearby devices and refresh its wireless state.
Open Settings, and then tap Bluetooth.
Toggle Bluetooth off, wait a few seconds, and then toggle it back on.
Try connecting to your car again from the device list.
2. Disconnect Other Bluetooth Devices
If your phone is already connected to earbuds, a smartwatch, or another car, it may refuse to pair with a new system. Bluetooth often prioritizes the last active connection.
Open Settings, and then tap Bluetooth.
Tap a connected device, and then choose Disconnect.
Once disconnected, try pairing with your car again.
3. Remove the Old Car Pairing
Old pairing records can block new connections, especially if your car system was updated or reset. Removing the pairing lets both devices start fresh.
Open Settings, and then tap Bluetooth.
Tap the gear icon next to your car’s name, and then tap Unpair.
After that, reconnect your car as a new device.
4. Make Sure Your Car Is in Pairing Mode
Your phone cannot connect if the car is not actively discoverable. Many car systems exit pairing mode automatically after a short time.
Open your car’s infotainment settings, and then enable Bluetooth pairing mode.
Return to your phone, and then tap your car’s name from the available devices list.
Confirm the pairing code if prompted.
5. Check Bluetooth App Permissions
Restricted permissions can prevent Bluetooth from functioning correctly. This often happens after updates or security changes.
Open Settings, and then tap Apps.
Tap Bluetooth, then tap Permissions.
Make sure all required permissions are allowed.
6. Restart Both the Phone and the Car System
Temporary glitches can affect either device. Restarting both clears memory issues and resets wireless services.
Restart your Xiaomi 15 Ultra.
Turn your car off completely, wait a minute, and then start it again.
Try pairing once more after both systems fully boot up.
Bluetooth issues on the Xiaomi 15 Ultra are usually easy to resolve once you clear old connections and refresh the pairing process. After resetting both devices and reconnecting properly, your phone should link to your car without trouble.
FAQs
Why does my Xiaomi 15 Ultra connect but disconnect immediately?
This usually happens when the pairing data is corrupted or another Bluetooth device takes priority. Removing the old pairing and reconnecting fixes it in most cases.
Does my car need to support a specific Bluetooth version?
Most modern cars support standard Bluetooth profiles. Older systems may have limited compatibility, which can cause unstable connections.
Will resetting network settings fix Bluetooth car issues?
In many cases, yes. Resetting network settings clears Bluetooth conflicts, but it also removes saved Wi-Fi and paired devices, so it should be used only if other fixes fail.
