My 2015 q50 gave me a "chasis system control error" as I was driving 3 days ago. It would not shut down and no electronic components would respond, I.E. signal lights, a/c, brights, or start button. I had to disconnect the battery and somehow it shut down after a while. now it will not turn on unless there is another power source powering it. even then it gives me the same message and will not start. does anyone know or is familiar with this issue? Time is of the essence as I cannot have it parked where it is at for long.