Air suspension compressor not coming on?

Let's start by checking the fuses # 53 and 32 in the fuse panel on the right side of the cargo compartment and fuse # 8 100 amp at the front engine compartment fuse panel.

This guide can help:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here are the air ride suspension wiring diagrams so you can see how the system works. If the fuses are okay, I would swap out the air suspension control relay which is in the fuse panel under the hood as well. Check out the images (below). Please let us know what you find.

Did you swap the relay out? if so, we should do a CAN scan to see if a code comes up for the automatic air suspension control unit which is under the driver's seat, in the meantime I would check the controller electrical connectors to see if there is corrosion on any of the terminals. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Can I ask if any water got inside the car on the driver's side? Here is the location of the control unit so you can check it out.

I would use this guide to help check the grounds and power for the module and if okay change out the module:

https://www.2carpros.com/articles/how-to-check-wiring

Use the wiring diagrams above. Also did you check the connector for corrosion?

I would try a CAN scan to see what codes are stored.

Was this car in an accident? I would check the wiring harnesses to make sure none are damaged, if not replace the fuse panel.