There is some confusion on how to set up Automatic Exit Mode. Here is a great video that a young lady produced showing how to set the seat functions. Note: Your C7 must be a 2LT, 3LT, 2LZ, or 3LZ. The 1LT/1LZ does not have the feature.
Also note if the seat is all the way back against the stop, nothing moves when you open the door. You need to move the seat slightly forward, as little as a ¼" and then everything works.
Also note if the seat is all the way back against the stop, nothing moves when you open the door. You need to move the seat slightly forward, as little as a ¼" and then everything works.