jdunmyer wrote:The Bolt's app uses the cellular system, so the "range" is essentially unlimited. It does have to be set up for your car; my salesman did that for me. It does NOT react instantly, the delay is apparently dependent on the cellular system. You do not need to be subscribed ot OnStar for the app to work. Naturally, you need a cell signal at both your and the car's locations.
I think you do need an OnStar basic plan for the app to work. However, all Bolts come with 5 years free, and the oldest Bolt is only 4 years, so everyone still gets it for free.