We all complain about the cold, but I've noticed my 2014 Calais V has started to do the same thing. It only occurs when the car is stone cold, such as when starting for the first time after standing overnight. Here's the scenario. My house is on a hill. When I back out of the driveway onto the road, I can drive down the hill or up it (figures). When I drive down the hill, there's no abnormal noises. If I need to go the other way, I back out, shift from reverse to drive, and as I accelerate to drive away up the hill there's a horrible grinding/groaning/growling noise that seems to emanate from the transmission. It only lasts for a second or two at the most, and I've never heard it at any other time. If I repeat the manoeuvre when the car has warmed up, there's no noise. I haven't checked the transmission fluid level yet, which I guess I should do, because the car's only travelled about 6500km. Any suggestions as to what the cause of the noise could be, apart from low transmission fluid level? Gear changes are smooth and as expected. Thanks in advance for any suggestions.