Heating System Maintenance Recommendations

• Before cold weather: Check the heater and windshield defroster to make sure they work properly.
• Weak or no heat: Have the coolant level, thermostat, heater core and airflow inspected.
• Foggy windows or poor defrosting: Have the defroster checked promptly for safe visibility.
• Sweet smell, wet carpet or coolant loss: Have the heater core and cooling system checked for leaks.
• Weak airflow or unusual fan noise: Inspect the cabin air filter, blower motor and resistor.
• Engine overheating or a high temperature warning: Pull over safely, turn off the engine and arrange an inspection. Never open a hot radiator cap.
• Follow the manufacturer’s coolant maintenance schedule to help protect the heater and cooling system.