.
I've got Midline and so surely it's on Highline as well. Comes up in display on going through the MFSW buttons (forget exactly which sequence). Adjusting it from 70 to 95 was one of the first things I did nearly 6 years ago. But then as soon as I heard the ping, because it's the same sound as other warnings, I switched it off completely. The last thing you want when driving at high speed is to suddenly hear a warning sound which could be a serious mechanical problem.