Deleting a Paired Phone
If the phone name you want to delete is unknown, see “Listing All Paired and Connected Phones.” 1. Press and hold 
for two seconds.
2. Say “Bluetooth.” 3. Say “Delete.” The system asks which phone to delete.
4. Say the name of the phone you want to delete.
See also:
Adjusting the Brightness and Contrast of the Screen
To adjust the brightness and contrast of the screen, press the MENU button while the rear vision camera image is on the display.
Any adjustments made will only affect the rear vision camera screen.
...
Bluetooth Controls
Use the buttons located on the infotainment system and the steering wheel to
operate the Bluetooth system.
Steering Wheel Controls
(Push To Talk): Press to answer
incoming calls, confirm system ...
Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer.
This can help to avoid situations that require heavy braking and sudden turns. ...