How do I reset the Audi A4's service reminder light?

I recently changed my Audi A4's oil, and the service reminder light is still on. How do I reset it?

To reset the service reminder light, turn the ignition on and immediately press down on the wrench button on the dashboard. Hold it for about 5 seconds until a new menu appears on the screen. Use the arrow buttons to select 'Reset Oil Change Interval' and press OK. Then, use the arrows to select 'Confirm' and press OK again. The light should go off.

You can also reset the service light by holding down the 0.0/SET button on the trip computer. Turn the ignition on, and then press and hold the button until the 'Reset Oil Change' message appears. Press the button again and the light will be reset.