Why is my Audi Q7 push button start not working?

If Your AudiQ7 push button start system is not working it is usually a problem with the key fob transponder communicating with the receiver in the vehicle. The most common reason why Your transponder will not communicate is that the battery in the fob has died. If You have replaced the battery in Your key fob and it is still not working then there could be a problem with the alarm system. You will want to reset the alarm so that the immobilizer will reset. If that does not solve the problem then You will want to check the battery and starter motor and make sure they are okay. Usually none of the electronic accessories will turn on if Your battery is dead.