Hello, check system fuses first to ensure they are intact. Then, the air conditioning system will need to be checked for integrity electrically and also having the appropriate amount of refrigerant. If the system does not have refrigerant, the system will not turn on. Starting with basic testing is the answer.
RepairPal Certified shops can diagnose and repair your 2011 Mitsubishi Outlander. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.