What does it mean when the adaptive front lighting system warning light comes on?
2 Answers
Adaptive front lighting system warning light may indicate a damaged height sensor linkage. Alternatively, the headlight level sensor linkage installed on the rear axle may be broken. The adaptive front lighting system is a dynamic lighting system that synchronizes the low-beam optical axis horizontally with the steering wheel angle for left-right movement and vertically with vehicle height for up-down movement. System inspection: Check the system first. If the system itself is functioning properly, the issue is usually a damaged height sensor linkage. Inspect the sensor linkage on rear axle: Examine whether the headlight level sensor linkage installed on the rear axle is broken. The sensor is mounted on the left rear wheel linkage. Excessive sensor resistance triggers the warning light, which can be resolved by repositioning the sensor to its normal position.
The adaptive front lighting system malfunction indicator has come on several times for me. Usually, it's a sensor issue - like when dirt blocks the sensor under the windshield wiper from properly detecting vehicle steering, causing the lights to stop working during turns. Motor or control system failures can also be culprits; if wiring inside the module becomes loose, the lights won't follow the steering wheel. Some vehicle software requires regular updates, and older versions may trigger errors when they can't keep up. I recommend first checking around the sensors for dirt, cleaning them, then restarting the engine. If the light remains on, head to a repair shop immediately - never attempt long night drives with compromised visibility as it's extremely dangerous. During routine maintenance, remind technicians to check headlight alignment to prevent many potential issues.
