How do you add freon to a 1996 Chevy Corsica?

To add Freon to a 1996 Chevy Corsica, first ensure the vehicle is off and locate the low-pressure service port, which is typically found on the larger diameter line of the AC system. Remove the cap from the port and connect a refrigerant gauge with a can of R134a Freon. Start the engine and turn on the AC to the maximum setting, then slowly add Freon while monitoring the gauge to avoid overcharging. Once the desired pressure is reached, disconnect the gauge and replace the port cap.