How do you charge the AC on a 96 Seville?

To charge the AC on a 1996 Cadillac Seville, first locate the low-pressure service port, typically found on the larger diameter aluminum line. Start the engine and turn the AC to its maximum setting. Connect a refrigerant charging kit to the low-pressure port, and add refrigerant (such as R-134a) slowly while monitoring the gauge until the system reaches the appropriate pressure. Always check for leaks and ensure the system is properly evacuated before charging.