Had my truck in for an AC compressor replacement. Picked up. When I went to start it, it "squawked" a warning about ice or something and to be careful. Of course, there is no ice around here at this time.... thank god. Further the "ding ding" seemed to be very loud. I looked thru the DIC options and didn't see anything that would indicate that I can change those settings one way or the other.... or that there is any settings of this flavor. Further, it happened once more and then hasn't happened since... strange. Not sure I have ever heard a voice warning before. What's the scoop?