How do you put Freon on Honda passport?

To add Freon to a Honda Passport, first locate the low-pressure service port, usually found on the larger of the two AC lines. Attach a refrigerant gauge or canister to the port, ensuring it's securely connected. Start the engine and turn the AC to the maximum setting, then gradually add Freon until the system reaches the proper pressure as indicated on the gauge. Always follow safety precautions and check for leaks after recharging the system.