How to remove songs and albums from Spotify playlist in a Tesla.
Note that I had only done a "Factory Reset" from the screen not long before trying this method in the video. The next day I tried to delete more SONGS, but couldn't. I could still remove ALBUMS by selecting SAVE, then de-selecting SAVE.
I then tried the MCU screen reboot by pressing the Brake Pedal and holding down both scroll wheels on the steering wheel for 3 seconds. After the reboot, every song that I had un-checked (from a ✓ to a +) were gone. Hope this helps.