I just purchased a 2022 CX5 2.5 S Premium and have a couple of questions.

1) My fuel efficiency monitor (in the information section on the infotainment screen) does not record average mpg. It will record current drive information, but never the history for average mpg. It is always blank. How to fix please?

2) Lane departure warning sometimes works at 40 mph, sometimes at 50 mph and sometimes not at all. I've noticed it on secondary roads with well marked lines. This happens both nght and day. Sometimes it will alert on a particular spot of the road I live on, sometimes not. Any advice why this is happening?

3) Can a dealership adjust the lane detection warning to alert earlier? I seem to remember seeing somewhere that it could be adjusted to alert early or late but do not remember where.