🚨 Many have drowned because they weren't aware of this; if you're trapped in a sinking car, stay calm. 1. Avoid trying to open the door and wasting your energy. 2. Don't open the window because the incoming water pressure will prevent you from escaping. 3. Pull the headrest from the seat back and then remove it 4. Use the steel tips to break the rear window and be sure to remove the glass.. The car, due to Design and Engineering requirements, is made to float appropriately and the rear window will always stay facing outward.