I got a bit worried, and slowed down. Hoped that the run flats would see me to the nearest gas station. It wasn't a puncture, and to date I don't know why those warning lights activated.
When I went to the gas station to put air in the tires they were actually a bit over pressured according to the tire pressure chart on the inside of the driver's door.
Alls well that ends well , though. Has this happened to anyone else?