In a power window system, which statements about Express Down and Express Up features are correct?

• A. A only
• B. Neither A nor B
• C. B only
• D. Both A and B

Answer: (D)

One-touch operation is what these features are all about. Express Down lets the window travel all the way down with a brief press of the switch, instead of requiring you to hold it. Express Up does the same in the opposite direction, raising the window fully with a quick press. In most power window systems, the control logic drives the motor to the end of travel and then stops, often with safety features like anti-pinch to interrupt if something blocks the glass. If the statements describe these two capabilities—one-touch full travel in either direction—then both are true, which is why the right choice says both.