I'm confused about some of the differences between OnStar and KeyPass. I recognize the OnStar service provides a lot (and costs a lot too), but it seems some of its functionality is provided by KeyPass. The only thing I want from either is remote access to vehicle status (charge state, charge completion, charge interruption) and remote starting. If I let my free OnStar service lapse after 3 months can I still do all this via KeyPass? TIA.