Why does the lane departure warning keep prompting?

[McMax]

Prompting lane departure occurs because the vehicle is not following the route planned by the navigation system. Below is an introduction to the Lane Departure Warning System: 1. How to cancel the Lane Departure Warning System: The driver can turn it off by pressing the system's switch button, which typically features an icon of a dotted line and a tilted car. 2. Components of the Lane Departure Warning System: The system mainly consists of a HUD (Head-Up Display), a camera (usually installed on the side of the vehicle or near the rearview mirror), a controller, and sensors.

[DiBrielle]

After driving for ten years, this is what annoys me the most—I always feel the system is too sensitive! In fact, lane departure warnings frequently go off mainly in three situations: when the lane markings are unclear, the camera gets confused, especially on old roads after rain or where old and new markings overlap. Also, erratic steering can trigger it—for example, I’m used to steering with one hand, and the system thinks I’m swerving. Don’t ignore tire issues either; last time, a 0.3 difference in tire pressure between the sides kept triggering warnings. Here’s a lesser-known fact: if you modify wide-body rims that extend too far beyond the body, the system’s trajectory prediction can fail. I recommend first calibrating the camera angle at the dealership and checking the chassis alignment data. If the alarm suddenly goes off on the highway, don’t panic—just grip the wheel and make slight adjustments.

[Lopes]

A colleague who works in automotive electronics discussed this issue with me. The root cause lies in the accumulation of errors at the perception layer. When the camera at the top of the windshield captures lane markings, highly reflective road surfaces can cause the algorithm to misjudge the position. Key checks include ensuring the windshield is free from oil film or cracks, as oil film combined with reflections on rainy days can double the false alarm rate. The sensitivity of the torque sensor under the steering wheel can be adjusted—go to the driving assistance menu on the central control screen and lower the 'Lane Centering Assist' option by one level. If you experience false alarms during turns, it’s likely because the curve radius exceeds the system's design value. Remember not to use dark windshield films—a veteran technician at the dealership recommends leaving at least a palm-sized transparent area for the camera.

[AsherDella]

It's normal for beginners to break into a cold sweat over this feature. The logic behind the lane departure warning is actually quite simple: the system calculates the distance between your wheels and lane markings in real-time using the front camera. Frequent alerts either mean the system is overly sensitive or you're genuinely drifting. First, check your driving posture: reclined seats can cause unconscious steering input – try sitting more upright. Then inspect vehicle conditions: underinflated tires or uneven tread wear are common culprits for false alarms. Narrow urban roads with parked cars often trigger false alerts as the system misjudges lane width. My driving instructor taught me a pro tip – maintaining a 30cm gap from lane markings proves far quieter than obsessively hugging the centerline.

[Kelsey]

Drivers who have worked with Didi know that even a loosely closed passenger door can trigger a deviation alarm! The system treats all lateral movements as deviations. Focus on checking four areas: Worn suspension bushings can cause excessive lateral sway; Cars with faulty half-shafts will wobble when automatically straightening after a turn; A dirty windshield camera is like driving blindfolded; The most troublesome are cars with modified power steering, as the steering angle sensor needs recalibration. Turn off the alarm in advance when encountering road construction zones—those temporary markings can drive the car's computer crazy. If the alarm is too noisy in the city, switching the alert mode from 'steering wheel vibration + beep' to vibration only makes it much quieter.