I was out last night; I knew that the batteries were low (70 miles) but I was local (within 10 miles of home) I had a few things running (wind screen heaters and the like) I got home and I got a message on the screen and saying low battery (now 60 miles) . . . . . . the screen controls were locked, I couldn’t access screen to turn off the demisters, fan etc. the screen locked me out of everything. I opened the charge flap from my phone and plugged it in. This morning I took a look on my phone and I have 60% charge and all looked OK (on the phone) except it showed my location on a road in about 500 yards back. I unlocked the charger (from my phone) and got into the car and was able to access the control screen. I then checked my phone and it now showed my location as outside my house. . . . all a bit ‘odd’ !