How do you recharge the air conditioner on a 1997 Oldsmobile Bravada?

To recharge the air conditioner on a 1997 Oldsmobile Bravada, first ensure the system is not leaking by checking for any signs of refrigerant loss. Then, locate the low-pressure service port, usually found on the larger diameter line. Attach a refrigerant can with a gauge to the port, start the engine, and turn the AC to maximum. Follow the instructions on the refrigerant can to add refrigerant until the desired pressure is reached, monitoring the gauge to avoid overcharging.