What Causes the Exclamation Mark Warning Light to Illuminate in Wuling Hongguang?
3 Answers
When an exclamation mark appears on the car dashboard, it can indicate one of five possible issues: general faults, automatic transmission faults, brake system faults, abnormal tire pressure, or lighting faults. Below is a detailed analysis of each scenario: General Faults: A triangle with an exclamation mark inside indicates a malfunction in the vehicle's general performance, components, or functions. Common causes include parking sensor failure, fuel cut-off system intervention or malfunction, external light failure, or engine oil pressure sensor failure. It is recommended to visit a 4S shop for inspection to identify the source of the fault. Automatic Transmission Faults: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a transmission issue or that the transmission fluid level is below the normal range. The transmission fluid should be replaced promptly. Brake System Faults: A circle with parentheses and an exclamation mark in the middle represents a brake system warning, typically indicating a brake system malfunction or low brake fluid level. Immediate inspection and repair of the brake system are necessary to avoid accidents. Abnormal Tire Pressure: A horizontal line with parentheses below and an exclamation mark in the middle is the tire pressure monitoring warning light. This light illuminates when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Faults: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in one of the vehicle's lights. Solution: Visit a 4S shop for inspection as soon as possible, or conduct a self-check focusing on commonly used bulbs such as turn signals, fog lights, and interior lighting to identify the problem.
I also encountered the yellow exclamation warning light when driving my Wuling Hongguang for delivery last time. After checking, I found the left rear tire pressure was a bit low. Later, I switched to the spare tire and drove two kilometers, then the light automatically turned off. Besides tire pressure issues, if the handbrake isn't fully released, this light can also come on, especially after driving on rough roads where it might get stuck in a semi-engaged state. If the light turns on when braking, it's most likely due to worn brake pads or insufficient brake fluid. Once during rain, the light came on and I found the ESP system's wheel speed sensor was covered in mud—washing it off fixed the issue. The most concerning is ABS failure, but it's quite common for the sensor connectors in the Hongguang to get water inside; unplugging and replugging them might solve the problem. I recommend first using a tire pressure gauge to check all four tires. If the tire pressure is fine, try turning the engine off and restarting it.
During a long-distance drive, a yellow exclamation mark suddenly appeared on the dashboard, which was quite alarming at the time. A friend advised me to first check the brake light status, and it turned out one of the high-mounted brake light bulbs had burned out. The mechanic mentioned that the Wuling Hongguang's electrical system is sensitive, and even a faulty bulb can trigger the warning light. If the exclamation mark appears with a wavy line underneath, it's most likely a tire pressure monitoring issue, with a punctured tire causing air leakage being the most common scenario. During the last maintenance, the technician mentioned that early batches of the Hongguang had sensor wiring harnesses prone to wear and short circuits, especially the right front wheel harness which could rub against the chassis. If the tire pressure readings are normal but the light stays on, try disconnecting the negative battery terminal for five minutes to reset the system. If the light comes on after rain, it's highly probable that the wheel speed sensor is being interfered with by mud or water.
