My OnStar trial on my Volt I bought in September 2016 just expired in late December. I knew the Basic Plan included the basic features of the myChevrolet app, but what I didn't know was that seeing my battery level was not considered a "basic feature". Is there a way I can buy only the Vehicle Status portion of a plan? I don't want or need any other features. I have hands-free calling and navigation through Android Auto. I carry a Bluetooth OBD-II reader with me so I can run diagnostics if the MIL comes on. All I want is to be able to see my battery charge and estimated charge completion time from the app. Has anyone else had luck purchasing only this feature of OnStar?