It's clearly not detecting her phone 20 miles away. I can imagine how with different phone manufacturers the car can find it hard to tell who is in the drivers seat, but this must be a different issue.It’s also annoying that it doesn’t re-check so even if you put in park get out/in/camp mode etc for several hours it will still use the same profile/device it detected when it unlocked the car.
For example i dropped off my OH (incorrectly auto selected her profile first even though my phone several meters closer to car), then drove about 15 mi, put car in camp mode whilst jet washing car, got out of the car, back in, entered PIN, auto-selected her profile again… drove another 5 mi or so posted a letter (car didn’t auto lock due to being on roadside) back in, entered PIN, selected her profile again…. She’s now 20+ mi away with her phone.
For me I think it should detect profile at time of putting in successful PIN (prior to profile switch from Easy Entry) as this was several times where it could have corrected itself.
If it was on your profile and changed surely you've got the phone->profile association set incorrectly under the Locks section of the car, or maybe have her profile set as easy entry.