My truck came with a maintenance book in my glove box that said Chattanooga custom center on it and it's also printed in the top left of my tailgate, I was just wondering if anybody had any information on the place and I also have a question about my heater, it seems to be stuck in window defrost setting, and won't change to the floor or other vents, somebody said it could be a vacuum leak but I wouldn't know where to start so any information on that also would be greatly appreciated.