Why is your Nissan Xterra getting hot when ac is on?

If your Nissan Xterra is overheating when the AC is on, it may be due to a failing cooling system, such as a clogged radiator, malfunctioning thermostat, or a faulty water pump. The AC system puts additional strain on the engine, and if the cooling system isn't functioning properly, it may struggle to dissipate heat. Additionally, low coolant levels or air trapped in the cooling system can exacerbate the issue. It's advisable to have the cooling system inspected by a professional to diagnose and resolve the problem.