What is the reason for the sudden appearance of five warning lights on the Roewe RX5?
3 Answers
The sudden appearance of five warning lights on the Roewe RX5 is caused by ECU CAN bus failure, excessive dirt and carbon deposits, abnormal air circulation, and low fuel pressure. Below is relevant information about the engine warning light: Actions to take when the engine warning light is on: First, perform a self-check. If it is safe, check the dashboard for any faults. If you are unable to confirm whether the vehicle can continue to drive, be sure to contact a technician from the 4S shop under safe conditions and consult with the repair shop's mechanic. Reasons for the warning light being on: When abnormalities occur in related system components, the engine control unit stores the fault code and directly sends a signal to illuminate the dashboard warning light.
I've been driving for decades and have driven many SUVs like the Roewe RX5. It's quite rare but serious for five warning lights to suddenly come on at once. This is usually caused by low battery voltage triggering false alarms across multiple systems, such as the engine fault light, ABS or airbag lights flashing erratically. Alternatively, it could be a core control unit malfunction affecting sensor data transmission. I once encountered this situation due to water ingress in the fuse box causing a short circuit - extremely dangerous. In such cases, you must immediately find a safe place to stop - don't keep driving. Simply check if battery terminals are loose or corroded; without proper tools, don't attempt repairs. It's best to call for a tow truck to a 4S shop for diagnostic scanning to identify the root cause. Regular maintenance of the battery and wiring harness connections can prevent such issues. Developing this habit saves major trouble down the road.
Oh, I've had similar trouble with my car before. When those warning lights all flash at once, it really makes you panic. Usually, the root cause is a system malfunction—like a faulty ABS module triggering other warning lights, or an aging battery causing unstable power supply that confuses the electronic control unit. Even a bug after a software update could cause this. Never ignore it! Immediately slow down, pull over, and turn off the engine. Waiting for ten minutes might reset the system. If the lights stay on after restarting, check the relevant fuses in the fuse box or drive straight to a repair shop. Safety comes first! Also, avoid modifying or adding accessories that interfere with the original car's electrical system. These tips are quite practical.
