What Does This Indicator Mean?
The Jetour Red Engine Overheating Warning Light is a critical alert designed to inform the driver that the internal combustion engine’s operating temperature has exceeded safe structural thresholds. In Jetour vehicles, such as the X70 or X90 series, this indicator typically appears as a stylized thermometer immersed in fluid, illuminated in a vivid red color on the digital instrument cluster. This state is detected primarily by the Engine Coolant Temperature sensor, which monitors the thermal state of the glycol-based coolant circulating through the engine block and cylinder head. When coolant temperatures surpass approximately 115 degrees Celsius (239 degrees Fahrenheit), the Engine Control Module instantly triggers this red warning. This affects the entire powertrain subsystem, signaling an imminent threat of severe thermal breakdown, loss of lubrication efficiency, and catastrophic mechanical failure.
Can I Still Drive with This Light On?
No, you cannot and must not drive with this light on under any circumstances. Because of its red severity rating, continuing to operate a Jetour vehicle with an active overheating warning is mechanically disastrous. Operating an overheated engine causes extreme thermal expansion of metal components, which can quickly lead to warped cylinder heads, blown head gaskets, seized pistons, and cracked engine blocks. Furthermore, severe overheating can cause engine oil to break down completely, destroying internal bearings and resulting in total engine failure. If this light illuminates while driving, pull over safely to the side of the road immediately, turn off the engine, and allow the powertrain to cool down before taking any further action.
Common Causes of the Warning
- Low Coolant Level: A decrease in the volume of coolant, often caused by external leaks in radiator hoses, water pumps, or internal leaks such as a failing head gasket, which drastically reduces heat dissipation capacity.
- Thermostat Failure: A thermostat stuck in the closed position, which physically blocks coolant from flowing out of the engine block and into the radiator, trapping heat within the core of the engine.
- Electric Cooling Fan Malfunction: A failure of the radiator cooling fan assembly, its associated relay, or the cooling control module, preventing proper airflow across the radiator core while the vehicle is idling or moving at low speeds.
How to Diagnose and Reset It
Diagnosing a red overheating condition requires a systematic, safety-first approach. Begin by allowing the engine to cool down completely for at least one hour to avoid severe steam or hot fluid burns. Once cool, visually inspect the coolant expansion reservoir and radiator for leaks or low fluid levels. Check the condition and operation of the electric cooling fan by turning on the vehicle’s air conditioning or running the engine until operating temperature is reached. Next, utilize an OBD2 diagnostic scanner to check for stored Diagnostic Trouble Codes related to the cooling system, such as P0115 for circuit issues or P0217 for engine over-temperature conditions. Use a digital multimeter to test the resistance of the coolant temperature sensor and verify power delivery to the cooling fan relay. Once the root mechanical or electrical cause is successfully repaired and fresh coolant is properly bled and filled, the warning light will automatically clear from the Jetour dashboard once the Engine Control Module confirms safe operating temperatures during a test drive.