* Temperature control knob(s): This regulates the temperature of the air blowing from the vents.
* Fan speed control: This adjusts the blower motor speed, controlling how much air is circulated.
* Mode selector: This controls where the air is directed (dash vents, floor vents, defrost vents, or a combination).
There might also be separate controls for air conditioning (A/C) which are integrated into the same panel. The exact layout might vary slightly depending on the trim level of your Suburban, but the core controls will be on that central console area.