Have a week old 2015 TLX V-6 Advance - in the last few days noticed that when the vehicle is locked, the interior dome lights and side view mirror lights are cycling on and off every 15-20 seconds. Changes to light settings has no effect except to lengthen the cycling periods. Anyone hear about this situation or experience it? Solution?

 

I posted a comment in the problems/fixes section to this issue. It may be your remote is too close and "tricking" your car into thinking you're ready to enter the vehicle, that's why it only happens when it's locked. Just a thought.