I've had a similar problem with my 2009 X and took it to the dealership to have it looked at. The dealership ran tests on my x and on several other brand new vehicles at the dealership, other MDXs, TLs and RDXs. They all had the same issue. The dealership advised that the battery, in extreme cold conditions, does not have enough power to move the tilt steering, seat and mirrors into the correct position. Once the car has been running, warms up and the battery is back at full strength the seating positions should all work properly. I only expetience this nuisance of an issue in the winters. Still, you would expect a vehicle to work appropriately in all conditions after the amount of money we spent!
2009 Black MDX base model.