Observe the back of the vacuum cleaner; find the lever near the bottom, directly in the center. The lever should be yellow on one side.
Turn on the vacuum cleaner and adjust the height of the head to the appropriate position. The height of the head is adjusted via the step-on push button on the front left side of the vacuum. The head is adjusted to the correct level when the tone of the vacuum machine changes.
Push the yellow end of the lever with your foot to engage the automatic transmission. This will make the vacuum cleaner self-propel with just a small amount of pressure on the handle. When you have finished vacuuming, push the step-on pedal to lift the vacuum head. Then, turn off the power and push the gray side of the transmission lever to return the G6 to manual transmission.