About Car in water — the complete escape sequence: which statement is WRONG?
Step 1 is lights on: switch on interior and exterior lights for orientation and visibility to rescuers.
If the side window fails, wait until the car has mostly sunk; then the pressure inside and outside is equal and the door opens by itself.
As soon as you are out of the car, you immediately turn around and swim straight for the shore.
Do not try to smash the windscreen, it is extra strong and therefore almost unbreakable.
Explanation
trap: turned around too early, close to the sinking car. Book p.179 - swim away facing the car at first; only once at a safe distance from the vehicle do you turn around