Didn't know that, I've never had a car with 100k miles on it.

A lot of cars do show some symbol on the display to indicate a mileage mismatch between data storage locations, I just assumed that's what it was. Thanks for the education on the two lines...wonder why it does that?

 

If I had to guess I'd say it's to split it from the transmission mode, and the gear indicator. Otherwise it might be a little too crowded and the numbers and letters would run together.

 

Seems as if over 100K it does that.