* Automatic transmissions require hydraulic pressure: Automatic transmissions rely on hydraulic pressure to engage the gears. This pressure is generated by a pump that is powered by the engine. With a dead battery, the engine can't turn, and the hydraulic system won't work.
* No starter motor engagement: Even if you could get the transmission engaged, the starter motor wouldn't engage because it's powered by the battery.
What you can do instead:
* Jump-start the car: The most common solution is to use jumper cables to connect the dead battery to a working battery from another car.
* Call for a tow: If you can't jump-start the car or don't have the necessary equipment, you'll need to call a tow truck.
Remember, attempting to push-start an automatic car can damage the transmission.
