Front End Collision Warning Failure Messages Received.

What is your question?

Have received two messages and are being told it is due to sun shining directly into front windshield camera. 1st time it was apx 95 degrees out. Took it in for inspection. Next time it was apx 72 degrees and received 2nd message was at 6:55pm and followed the collision message with "Daytime Pedestrian Warning limited." ???? Check visibility. See Owner's Manual. Purchased the car with less than 700 miles on it from the dealer. Was assured it has never been in an accident. It is beyond what I can imagine, that this should be accepted as normal. How would I know if there really was a problem with a front collision failure? Or pedestrians? Or?