Air Ride on 2002 Tahoe LT

[firefighter23]

I have a 2002 Tahoe LT with the Autoride Air Ride System. I purchased this truck used, in excellent condition, and everytime I started the truck, it would auto level, but for the past few months, the compressor is not coming on. I am not sure if I should check the fuses, or may be it does not need leveling. It is just stange. Does anyone have any experience with this?

 

[scottg918514]

Sorry to piggy back, but I just got an 03 Z71. How can I tell if I have the auto leveling suspension, which RPO code?