* Overheating Engine: The primary meaning is that your engine is overheating. This is a serious problem that needs immediate attention. Pulling over and turning off the engine is crucial to prevent serious damage.
* Low Refrigerant (AC System): The secondary meaning can sometimes indicate a low refrigerant level in your air conditioning system. A low refrigerant level can cause the AC compressor to work harder, potentially leading to an engine overheat condition *indirectly*, particularly during hot weather when the engine is already working hard. However, a low refrigerant light usually has a different symbol dedicated to the AC system itself. The combined light suggests a problem with the engine taking precedence.
What to do:
1. Immediately pull over safely: Do not continue driving if this light illuminates. Continuing to drive with an overheating engine can cause catastrophic damage.
2. Turn off the engine: Let the engine cool down.
3. Check your coolant level: Once the engine has cooled (it might take a while), carefully open the coolant reservoir (when it's safe to do so) and check the coolant level. If it's low, you likely have a leak somewhere in the cooling system. Do not open the radiator cap while the engine is hot!
4. Call for roadside assistance or a tow truck: You'll likely need professional help to diagnose and fix the problem, especially if it's an overheating issue. Driving with a low coolant level and an overheated engine risks severe and costly damage.
It's vital to address this warning light immediately. Ignoring it could lead to a blown head gasket, cracked engine block, or other expensive repairs.
