The two buttons grouped furthest to the right in the image above, control the vehicle pitch. These buttons are labeled by a Defender ROV pitched upward, and one pitched downward.
Pitch control requires the auto mode to be activated.
In this group, the button on the right controls the ROV upward pitch, and button on the left controls the ROV downward pitch. Each press of the button controls in this group vary the ROV pitch by 5 degrees.
The button highlighted on the left side of the hand controller resets the ROV pitch and roll. This button is labeled using a level tool icon.