AC is working fine for front passengers. However, once you use controls to give your second (or third) rows AC, the AC will instead blow HOT air when using the ceiling vents. Alternatively, if you switch it to blow out of the 2nd rows lower vents, they will get cold air, except doing this will cause very Hot air on the driver from the door/floor area on the drivers left side. If it sounds stupid, it is. But its happening.