How do I remove old phone from car Bluetooth?

How do I remove old phone from car Bluetooth?
Android mobile devices (smartphone, tablet)

Swipe up from the bottom of the screen.
Tap the Settings icon.
Select Connected devices or Device Connection.
Select Previously connected devices or Bluetooth.
If the Bluetooth function is OFF, turn it ON.
Tap the.
Tap FORGET.

Android mobile devices (smartphone, tablet)
  1. Swipe up from the bottom of the screen.
  2. Tap the Settings icon.
  3. Select Connected devices or Device Connection.
  4. Select Previously connected devices or Bluetooth.
  5. If the Bluetooth function is OFF, turn it ON.
  6. Tap the.
  7. Tap FORGET.