How do I reset the oil indicator in my Audi A7?

I recently changed the oil in my Audi A7, but the oil indicator is still showing it needs to be changed. How do I reset it?

First, make sure the car is turned off. Then, press and hold the reset button on the instrument panel. While holding the button, turn the key to the first position. You should see the service light flash and then turn off.

If that doesn't work, try disconnecting the negative terminal on the battery for a few minutes. This will reset the car's computer and should clear the oil indicator.