Sparkling

Yesterday, my car started showing two messages (alternated between the two for a good 10-15 minutes) : "Active brake assistance function limited" and "Traffic Sign Assist Inoperative". I was sitting in traffic and the ambulance and police cars were not far from where I was trying to guide the traffic.

After I got to my destination and turned off the engine, the messages went away and didn't come back on. Was wondering if anyone knows why these errors were showing.

Thanks