Which side is the number one cyl on a Cadillac sts with a 3.2 engine?

In a Cadillac STS with a 3.2 engine, the number one cylinder is located at the front of the engine on the passenger side. This means that when you are facing the front of the vehicle, the number one cylinder is the first cylinder on the right side. The engine is oriented with the passenger side being the right side as you sit in the driver's seat.