Ecosport tire pressure light stays on

I had something similar happen with my Ecosport. Are you absolutely sure that all of your tires are properly inflated? It could be a slow leak that you may not have caught at first glance. Also, when was the last time you checked your air valve? Sometimes, they get corroded.

I double-checked the tires, and they're all inflated correctly. The air valves look fine too. Could it be a faulty sensor?

Given that you have eliminated the possibility of a flat tire, and the tire air valves are working correctly, it is quite probable that the tire pressure sensor is defective. These sensors do have a limited lifespan due to the integral battery used to power them. I suggest you have the sensor checked at a qualified workshop.

Thanks! Took it to the shop, and you were spot on. It was the sensor battery. Cost me 280€ to replace. Appreciate the help!