What does the tire pressure warning light mean in an Audi A3?

I noticed that the tire pressure warning light has turned on in my Audi A3. What does it mean and what should I do?

The tire pressure warning light typically means that one or more of your tires have low air pressure. It's important to check the tire pressure and fill up any low tires to the recommended level.

Another possibility is that there may be a puncture or leak in one of your tires. It's important to check for any visible damage or bring your car to a mechanic for a more thorough inspection.