How do you recharge ac on 03 Toyota Sienna?

To recharge the AC on a 2003 Toyota Sienna, start by locating the low-pressure service port, which is typically found on the larger diameter AC line. Connect a refrigerant canister with a gauge to this port. Follow the instructions on the refrigerant canister to add refrigerant, ensuring that the engine is running and the AC is set to maximum. After adding refrigerant, check the gauge to ensure the system is properly charged.