I had a similar problem, did you by any change replace the radio with aftermarket one with a CANBUS?
That seemed to be rootof the cause for me, it only happened when using internal lock button not locking via keys (which was fine). One way to fix (and I use that term lightly) is to set back seat lights to off, remove front bulb and boot bulb. Easy enough to remove the casing and slip the bulb out.
You can get lights to go off by disconnecting negative terminal and reconnecting but for me issue would keep occurring due to the radio / canbus communication.
Bookmarks