How do I reset the oil change warning light on my Audi A6?

I recently got an oil change on my Audi A6, but the warning light is still on. How do I reset it?

First, check the owner's manual for instructions specific to your Audi A6 model. Alternatively, you can try this: turn the ignition to the on position, but do not start the engine. Then, press and hold the 'MENU' button on the steering wheel until the service menu appears. Use the arrows to navigate to 'CAR' and then 'Diagnose'. Select 'Reset oil change interval' and confirm when prompted. If this does not work, it may require a visit to the dealership.