How do you recharge the air conditioning on a yukon?

To recharge the air conditioning on a Yukon, start by ensuring the engine is running and the AC is set to maximum cold. Connect a refrigerant can to the low-pressure service port, usually found near the firewall. Follow the instructions on the refrigerant can to add the appropriate amount of refrigerant, monitoring the pressure gauges as you go. Finally, check for cold air and inspect for any leaks or issues if the AC doesn't cool effectively.