XC60 2.0D: Duration of rear lights on when locking the vehicle adjustable?

Hello, maybe someone can help me here. I am currently driving an XC60 D3 with manual transmission as a rental vehicle for several days, with just 5,000km – whether this now EZ 2016 or EZ 2017 – so far relevant at all – I can not say. I noticed that (only!) the tail lights after closing the vehicle for a few minutes, so definitely > 90 seconds – felt rather 3-5 minutes, light up. I have already struggled through the settings and the user manual, Since I would prefer a reasonable coming/leaving function (30 or 60 seconds) but did not get smarter or with the adjustment options clear. My guess that it could have something to do with the way lighting did not cause me either. Via “My Car” – “Vehicle Settings” – “Light Settings” I can not change the options “Autom. Lighting” and “Permanent way lighting” and is set to 30 sec. (at least displayed). What else could I check? The switch for the lighting is set to “car”. When the lights are unlocked/unlocked, the flashers flash and, in my opinion, the “standlight” lighting is on. When the lights are locked, the “standlight” lighting goes out after a felt 30 seconds, but the rear lights continue to shine. The 3rd brake light does not shine along. For me, this is not a lack, but my neighbor seems to be bothering – he m Pay attention to this, as I parked my car in the direction of his living room. Nevertheless, the cause/solution would be interesting for me. I actually felt familiar with the Volvo operating concept; however, for 2 years I had no more than a mobile base. Thanks for feedback!