How do I reset the tire pressure light on my Audi A4?

I just replaced a flat tire on my Audi A4, and now the tire pressure light won't turn off. How do I reset it?

First, check to make sure all tires are properly inflated. Then, turn on the ignition and press the Menu button on your MMI system. Navigate to 'Tire pressure' and select 'Reset'. If that doesn't work, try disconnecting the negative terminal of your car's battery for a few minutes and then reconnecting it - this should reset the system.

Another option is to drive your car for about 10-15 minutes at a consistent speed of around 50 mph. This should recalibrate the tire pressure sensors and turn off the light.