Lane Keep Assist & ADAS Calibration in Truckee & Grass Valley, CA
What is Lane Keep Assist (LKA)?
Lane Keep Assist (LKA) is an
Advanced Driver Assistance System (ADAS) designed to help you stay safely in your lane. Using forward-facing cameras, often mounted on the windshield, this feature monitors the road markings. If your vehicle starts to drift without signaling, LKA provides gentle steering corrections or warnings to guide you back into your lane. This technology adds an extra layer of safety, especially on highways and long drives, by reducing the risk of unintentional lane departures and potential collisions.
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How Lane Keep Assist Works
- Windshield-Mounted Camera: A camera behind the windshield reads lane markings.
- Sensor Input: The system uses sensors and software to detect if the vehicle is veering.
- Driver Alerts: Some vehicles issue audible or visual alerts before intervening.
- Steering Assist: LKA can make small steering adjustments to keep the car centered.
Why ADAS Calibration Matters
Because the camera is mounted on the windshield, even a small misalignment during windshield replacement can cause the system to function improperly. When your windshield is replaced or there is damage near the camera, recalibration is necessary.
Without proper calibration:
- Lane markings may not be detected accurately.
- The system could fail to warn you of lane drift.
- Steering corrections may occur too late or not at all.
At Sierra Mobile Glass, we perform both static and dynamic ADAS calibrations depending on your vehicle’s requirements. This ensures your Lane Keep Assist system is precisely aligned and working as it should.
Static Calibration
- Often performed in a controlled environment.
- The vehicle is parked in front of specialized calibration targets or patterns.
- Targets are placed at precise distances and angles according to manufacturer specs.
- A diagnostic tool communicates with the vehicle’s system to realign the camera/sensors.
- Requires level ground, proper lighting, and exact measurements.
Dynamic Calibration
- Completed while driving the vehicle on the road.
- A scan tool is connected to the vehicle during the process.
- The vehicle is driven at specific speeds (usually on well-marked roads).
- Cameras and sensors recalibrate in real-world conditions by detecting lane markings and road signs.
- Can take anywhere from 15 minutes to over an hour depending on the vehicle and road conditions.


Keep Your Safety Features Accurate with Certified Windshield Calibration
Your Lane Keep Assist system is only as reliable as its calibration. If you’ve recently had your windshield replaced or are noticing malfunctions, it’s time to have your system checked. Contact Sierra Mobile Glass today to schedule your ADAS calibration and ensure your safety features are working at their best.