The tyre pressure warning light on my transporter van kept coming on during long journeys. I would stop, check the pressures and they would be fine. Press reset. Get to my destination and check again. And they would be fine. This happened a good five times in a row.
One day I cleaned the van (because it was dirty…not because of the warning light problem) and the wheels with a karcher. Since then, the tyre warning light has not come on. Coincidence ? I have no idea. But it is back to normal.
A better one.
Last spring the emissions warning light came on the Yeti. The manual said go straight to a Skoda garage and pay money. So we did. They tested the car and it was fine. In fact the light went out. But recommended paying a lot of money to clean something. Which we declined.
Coincidentally, whilst waiting for the car, another person came into the garage saying that their emissions light was on. I think it was a tiguan. I suspect a lot of people came in that day with the same problem.
I realised that we were on red alert that day for pollution and that must be interfering with the sensor. Reading the atmosphere rather than the car ?
Not sure VAG would agree.
A couple of days later, the emissions warning light came back on again. It went off when the pollution passed.
External factors can influence sensors.
Anyway, I hope the op sorts out his problem. It is the type of thing that would drive me mad.