How to troubleshoot unresponsive start/stop button in Audi A6?

I recently bought an Audi A6 and the start/stop button seems to be unresponsive. I've tried pressing it multiple times but the car won't start. What could be causing this issue and how can I fix it?

One possible reason for the unresponsive start/stop button could be a dead car battery. I suggest checking the battery voltage and charging it if necessary.

Another reason could be a faulty start/stop button. In this case, it's best to take your car to a certified mechanic for a proper diagnosis and replacement if needed.