Final answer:
The gear for backing up is reverse, and it's crucial to stop the vehicle completely before switching to or from this gear to avoid transmission damage.
Step-by-step explanation:
The gear for backing up is reverse, and it's crucial to stop the vehicle completely before switching to or from this gear to avoid transmission damage.The gear that is used for backing up is reverse. It is important to bring the vehicle to a complete stop before changing from a forward gear to reverse or from reverse to a forward gear. This prevents damage to the transmission system. Neither park, neutral, nor drive gears are used for backing up a vehicle. Park is used to secure the vehicle when stationary, neutral disconnects the engine from the wheels, and drive is used for moving forward.