After driving about 300 miles in the rain and arriving at my destination, I discovered my passenger side fog light lense was shattered. Even had glass fragments embedded in the mudflap. A closer look showed bulb was obviously broke as well. I did not hear or see anything in advance to have a clue what happened. I rightly or wrongly assumed a rock must have hit it. Have since found, bulb, and lense is 1 piece and the dealer cost is about $250 installed. Got me wondering if water might have made contact and caused explosion. If so, am wondering if warranty might cover. I have a 2014 3500 SL.