What Causes Lane Assistance System Malfunctions?
3 Answers
The reasons for lane assistance system malfunctions include: absence of lane markings or failure to recognize relevant boundary lines, vehicle speed below the activation threshold of 65 km/h (varies by country or region), lane width narrower than 2.5 meters or wider than 4.5 meters, excessively tight curves, or hands not being on the steering wheel. It is recommended to check if the onboard camera is obstructed or directly visit a 4S shop for inspection and repair. Below is relevant information about the Lane Keeping Assist System: Definition of Lane Keeping Assist System: The Lane Keeping Assist System is a type of intelligent driving assistance system. It can control the brake coordination device based on the Lane Departure Warning System (LDWS). While the vehicle is in motion, it uses a camera to identify lane markings and helps keep the vehicle within the lane. Precautions for Use: If the vehicle approaches the recognized lane marking and deviates from the driving lane, the system will alert the driver through steering wheel vibration or sound. If the Lane Keeping Assist System detects the lane markings on both sides of the current lane, the system is in standby mode. This is indicated by a green light on the instrument panel.
There are quite a few reasons for lane assist system malfunctions. The camera is the most common failure point, as the probe on the windshield can easily get contaminated by dust, bugs, or rain and mud, making it unable to accurately identify lane markings. Sensors can also become loose or damaged, such as from prolonged vibrations on bumpy roads causing poor contact. Software issues are also common—outdated systems or bugs may require updates, much like how phone software can lag if not updated. Environmental factors like heavy fog or rain can easily cause the system to misjudge. I’ve been driving for ten years, and once the system failed on the highway, causing the car to wobble and nearly veer out of the lane—later, I found out the camera was blocked by bird droppings. The solution is to regularly clean the camera with a soft cloth, scan for system errors with a diagnostic tool after parking, and it’s recommended to get a professional inspection every six months to prevent safety risks.
Lane assist system malfunctions are often caused by sensor issues. These sensors are installed at the front of the vehicle and are responsible for scanning road markings. They may fail if they become dirty or obstructed. Software faults should not be overlooked either, as the vehicle's onboard computer sometimes requires OTA updates to fix bugs. Loose wiring connections are another common cause, such as connectors coming loose after bumps. Unstable power supply and low battery voltage can also affect system performance. I once experienced a sudden system failure, but fortunately, I was driving at a low speed and quickly took manual control. Safety recommendations include keeping the sensor area clean, avoiding stickers or films that may obstruct them, and promptly visiting a repair shop if issues arise. While lane assist is convenient, it shouldn't be completely relied upon. Developing a good habit of regular checks is always better.