Good afternoon.

I am dealing with the exact same issue as you.

Here's what I know...

The vehicle turns off certain peripheral modules if they are consuming more power than usual. What you have probably noticed is your comfort access won't work alright before you get in the car and notice the high battery discharge message.

My issue was with the passenger side front door handle. It did not work at all for the longest while but then all of a sudden started doing some weird things. It would work kinda, then keep locking it when I was near it and sometimes lock and unlock. It typically will act like this when the fob is nearest the antenna for the faulty handle.

I disconnected the faulty handle, since I don't use it anyway, and everything was back to normal. No battery drain or weird locking/unlocking issues.

Will this fix your problem? Who knows. Only one way to find out.

I will eventually replace the handle all together but for now I really don't care. I get in the driver's side like any normal driver would.