FORWARD COLLISION WARNING & ADAS Calibration in Truckee & Grass Valley, CA

What is Forward Collision Warning?

Forward Collision Warning (FCW) is one of the most important ADAS (Advanced Driver Assistance System) features in modern vehicles. It reduces the risk of rear-end collisions by continuously monitoring the road ahead and alerting the driver when a potential crash is detected. When your windshield is replaced, the ADAS technology that powers FCW will need to be calibrated to maintain proper function. Understanding how Forward Collision Warning works and how it’s affected by a windshield replacement is essential for keeping drivers safe on the road. That’s why Sierra Mobile Glass provides certified ADAS calibration throughout Truckee and Grass Valley, CA!

How Forward Collision Warning Works

Forward Collision Warning relies on various ADAS technologies. Depending on the vehicle, FCW may use front-facing cameras, radar sensors, LIDAR sensors, and Electronic Control Units. These components monitor distance, lane positioning, speed changes, and obstacles. Because the main FCW camera is typically attached to the windshield, anything that changes its alignment or clarity can impact the entire system.

How ADAS Calibration Restores Forward Collision Warning

When your windshield is replaced, the ADAS camera that controls FCW must be calibrated. Even minimal shifts in alignment can cause inaccurate readings, and incorrect sensor placement can delay or prevent warnings. Proper calibration ensures that your FCW camera sees the road correctly and functions properly when you need it most. Certified technicians commonly use two types of ADAS calibration:

• Static Calibration: Performed on a completely level surface using specialized targets and precise measurement equipment. The vehicle remains stationary while the camera is aligned and calibrated.



• Dynamic Calibration: The vehicle is driven at specific speeds under controlled conditions. The system learns in real-time from lane markings, traffic, and other data.

Many modern vehicles with FCW require both static and dynamic calibration to restore complete accuracy.

Is ADAS Calibration Necessary for Accurate FCW?

A misaligned camera can lead to late or missed collision alerts, false warnings, and even malfunctions in other ADAS features. Proper calibration restores accuracy so your FCW warning can act when it should and trigger other features correctly. ADAS calibration is so important that many insurance providers require the service after a windshield replacement to qualify for coverage.

You can count on Sierra Mobile Glass to calibrate your ADAS technology precisely, keeping you and your passengers safe on the road. Contact us today to schedule your ADAS calibration and keep your FCW functioning properly.