Rear air compressor on 2004 Buick Rainier

Why would Rear air compressor comes on by it self at times

Asked by for the 2004 Buick Rainier
1 answer
Its supposed to, its leveling the car. But, if you come out and rear end is sagging then your bags (shocks attached to compressor are wearing out and letting air from compressor leak out (they would need changing).