fire or the fumes from hot plastic could end up inside your car.
if your car stops while driving through floods leave the bonnet (hood) closed to avoid more water getting in the engine compartment, get out and wade to dry land. one good thing in the philippines is you will always find people willing to help you. if it is standing water get them to push it back to dry land this is safer than trying to push it through the flood where it could get deeper.
if you are in the middle of nowhere and there is no help you could try putting your car in first gear or reverse 