The system automatically adjusts to maintain a level ride based on the load in the car and the sensor's reading. If you're having leveling issues, the problem likely lies with:
* The ride height sensor itself: This is a crucial component, and failure here would prevent proper leveling.
* The air compressor: If it's not working properly, it can't inflate or deflate the air suspension properly.
* The air lines and valves: Leaks or malfunctions in this part of the system will prevent it from working correctly.
* The computer module (control module): This is the "brain" of the system and problems here can cause various issues.
Therefore, you won't find a simple "switch" to adjust the ride height. Diagnosing air suspension problems requires a mechanic familiar with these systems.