When Bluetooth stops working on your MacBook Pro 14-inch M5 Pro, your wireless accessories like Magic Mouse, AirPods, and external speakers become useless. Whether a device won't pair, connections are unstable, or the Bluetooth menu is grayed out, these steps will get you reconnected.
Toggle Bluetooth Off and On
Start with the simplest fix. Click the Bluetooth icon in your menu bar and choose "Turn Bluetooth Off." Wait about ten seconds, then click it again to turn Bluetooth back on.
If you don't see the menu bar icon, you can do this from System Settings > Bluetooth. Just click the toggle next to "Bluetooth" to cycle it off and on.
Restart Your MacBook Pro
Click the Apple menu > Restart. A full restart clears out any temporary software glitches that might be affecting the Bluetooth controller. I've found this resolves more connection issues than any other single step.
It's a good first move, especially if you've had your MacBook Pro running for several days without a reboot.
Remove and Re-Pair the Problem Device
Go to System Settings > Bluetooth. Find the device that won't connect reliably and click the info button (the small "i") next to it. Click Forget This Device and confirm.
Now, put your accessory back into its discovery or pairing mode. On your Mac, it should appear in the Bluetooth settings list again. Click "Connect" to pair it fresh. This replaces any corrupted pairing data.
Reset the Bluetooth Module
Hold down the Shift and Option keys on your keyboard, then click the Bluetooth icon in the menu bar. A new debug menu will appear.
From this menu, select Reset the Bluetooth module. This performs a deeper reset of the hardware than just toggling it off. Your Mac will restart automatically after this action.
Delete Bluetooth System Preferences
Corrupted preference files can cause persistent issues. Open a new Finder window, press Command + Shift + G, and type /Library/Preferences/ into the box that appears.
Look for a file named com.apple.Bluetooth.plist. Drag this file to your Trash. You will need to enter your administrator password. After moving it, restart your MacBook Pro.
macOS will create a new, clean version of this file when it boots up. Be aware, you will need to re-pair all your Bluetooth devices after this.
Check for Wireless Interference
Bluetooth uses the 2.4GHz radio band, which is crowded. Other devices like Wi-Fi 6E routers, wireless speakers, and even USB 3.0 hubs can cause interference.
Try moving your MacBook Pro away from other electronics. If you're using a Thunderbolt 5 dock, try disconnecting it temporarily to see if the Bluetooth connection improves.
Update macOS
Apple frequently releases updates that include fixes for connectivity. Go to System Settings > General > Software Update to check.
Make sure your MacBook Pro 14-inch M5 Pro is running the latest version of macOS 26 Tahoe. These updates often contain driver improvements for Apple Silicon chips that directly affect Bluetooth performance.
Check Your Accessory's Battery
This one is easy to overlook. A low battery in your mouse, keyboard, or headphones can cause pairing failures and random disconnects.
In System Settings > Bluetooth, many compatible devices will show their battery level right in the list. If it's critically low, charge or replace the batteries in the accessory and try connecting again.
Boot Into Safe Mode
Shut down your MacBook Pro completely. Press and hold the power button until you see the startup options window. Select your main drive, then press and hold the Shift key on your keyboard.
Click "Continue in Safe Mode" while still holding Shift. If Bluetooth works normally in Safe Mode, the issue is likely caused by a third-party login item, app, or system extension loading during a normal boot.
