How does the ACS work?

[porterb123]

2012 RT Limited. I did try a search first.
While riding yesterday I noticed while at a red light, the rear shock seemed to sag with my foot on the brake, then pump up again. Does it lower and raise itself at a stop? It seems to work fine while riding. The switch and gauge operate and will run from low to high positions. Does it release air after turning the key off. How does the system work?
Note; I have no high frequency hearing from my ignorant youthful shooting without hearing protection, so I can barely hear the compressor run and sure can't hear the air releasing with the engine running.
Thank you
Porter

 

[NancysToy]

The automatic rear suspension works off a level sensor mounted near the swingarm, with a link attached to the swingarm. You set the level and the Spyder will try to maintain it. Upon a weight shiftthat cause the rear to rise, such as might occur when stopping or standing on the pegs, the Spyder may release air to lower itself to the selected level. Upon loading the rear suspension under acceleration, it may do the opposite. These adjustments should not be repeated long. If they are, you may have a leak in the rear suspension, or a problem with the ACS componenets.

 

[porterb123]

The automatic rear suspension works off a level sensor mounted near the swingarm, with a link attached to the swingarm. You set the level and the Spyder will try to maintain it. Upon a weight shiftthat cause the rear to rise, such as might occur when stopping or standing on the pegs, the Spyder may release air to lower itself to the selected level. Upon loading the rear suspension under acceleration, it may do the opposite. These adjustments should not be repeated long. If they are, you may have a leak in the rear suspension, or a problem with the ACS componenets.

Thank you very much. That answers why when coming to a stop, I felt it.