Checking your car's AC refrigerant level isn’t too complicated, but it does require a bit of care. Start by ensuring the engine is off and the AC system is cool. You'll need a refrigerant gauge, which you can find at most auto parts stores. Attach the gauge to the port and turn on your car, setting the AC to its highest cool setting with the fan on full blast.
The gauge will display the pressure in the system. Just be cautious: overcharging the system can cause damage, and if the level is significantly low, it could indicate a leak. In such cases, it’s best to consult a professional to diagnose and fix the issue properly.