When not driven for a while then comes off after restart.when driven regularly the light doesnt come on.
air suspension warning lights comes on after the first start. on 2005 Porsche Cayenne Turbo
You may have a leaking air shock, that sags over night. Every time you start the engine the air suspension does a self-test and the suspension pump runs to level out any of the shocks. If a shock sags too much because it is leaking air, then this will set a code and turn the air suspension light on for awhile.
The car sits evenly even when parked for a while (a week or more) and no noticeable change in heights. The lights comes on when driving after this long period of unuse but turns off after a few re-starts. I did notice that the car don't hiss and lower or goes up after I park. How do I check to make sure the air suspension /auto leveling function still works?