2007 Yukon Denali autoride compressor not turning on at startup

[jwhitesides]

My 2007 Denali was recently in an accident with pont of inpact at the driver rear tire near the compressor, shock, and leveling sensor. Prior to this I have replaced my rear shocks and compressor with Arnott factory replacement components and all have been working well and with no error codes.

 

I have noticed that the compressor to level the rear suspension is not turning on at startup every time. However, I am not getting any error code.

 

To start I want to confirm my memory servers me correct.

 

Is the autoleveling compressor supposed to activate at startup every time?