I’ve had my GS300h Luxury for 3 months now and love it. It’s taken a while to understand all the features and functions but basically I’m there. EXCEPT, while driving along the car occasionally emits a double beep without any other indication (no flashing light, message or anything). It happens on motorways, main roads, side roads, anywhere! I thought it may be associated with road signs, road markings, certain speeds, proximity to objects, but no, nothing correlates. Anyone have an idea what the beeping is?