I don't get a "check suspension" light but when I go out to the car the rear always seems low. The wheels are deep into the wheel wells. When I drive, I do hear the compressor come on occassionally (seems like more often than normal these days) and when I get out of the car the rear level is somewhat ok looking. It does seem like the car feels bumpy from the back more than usual while driving.
I had the car at the stealership a few months ago and I assumed they would have let me know if something was wrong. And they didn't mention anything about it except that the compressor is kind of loud.
So should I assume it's ok and carry on? Maybe I'm just being paranoid.