If your phone is currently running on Lollipop, you can find the instructions for Bluetooth here: Bluetooth (Lollipop) 

• Supported Bluetooth profiles
• Turn on and connect to a Bluetooth device
• Set up a trusted device
• Disconnect from a paired Bluetooth device
• Change your phone’s device name
• Change a paired device's name 

Supported Bluetooth profiles 

• Moto X (1st Gen.): Bluetooth® 4.0 LE + EDR.
• Moto X (2nd Gen.): Bluetooth® 4.0 LE.
• Moto G (1st Gen.): Bluetooth® 4.0
• Moto E (1st Gen.): Bluetooth® 4.0 LE. 

The following Bluetooth profiles are supported: 

Turn on and connect to a Bluetooth device 

1. Tap Apps.
2. Tap Settings.
3. Tap Bluetooth.
4. Tap On.
5. Your phone will scan for available devices. Tap a device name to select it and enter a PIN or confirm matching Passkeys/Passcodes if needed. (If a PIN has not been set for the device you’re trying to pair your phone with, try 0000 or 1234.)
6. To reconnect with a paired device, tap the device name to select it. 

If you’re unable to connect, reset your phone and the Bluetooth device and retry. 

Note: Some car kits will require you to accept PBAP and MAP notifications to successfully connect. Checking Always Allow when you accept will allow you to only need to accept these requests once.

Set up a trusted device

If you use a screen lock, trusted devices will allow your phone to remain unlocked while connected to a Bluetooth device. If you disconnect or get too far away, your phone will lock again.

To designate trusted devices:

You must first have a screen lock enabled in order to select trusted devices. You can set up a screen lock by going to Settings > Security > Screen lock > Choose from Face Unlock, Pattern, PIN or Password. 

• Pair your phone with a Bluetooth device and select Trusted Device when prompted. 

You can also: 

1. Tap Apps.
2. Tap Settings.
3. Tap Security.
4. Tap Trusted Devices.
5. Tap the devices you would like to be trusted. 

Note: While connected to a trusted device, you can manually lock your phone through the notification curtain. Your power button will not automatically lock the phone when you are connected to a trusted device. 

Disconnect from a paired Bluetooth device 

Turn off the paired device OR: 

1.   Tap the Settings icon next to the paired device's name.
2.   Tap Unpair. 

Change your phone’s device name

The default name for your phone is usually “Motorola Phone”. To change your phone's name: 

1. Tap Apps.
2. Tap Settings.
3. Tap Bluetooth (make sure Bluetooth is turned on).
4. Tap the Menu icon.
5. Tap Rename phone. 

Change a paired device's name 

1. Tap Apps.
2. Tap Settings.
3. Tap Bluetooth.
4. Tap the Settings icon next to the paired device.
5. Tap Rename.
6. Enter a new name.
7. Tap OK.