San Tan Auto Glass
May 11, 20265 min read

What Is ADAS Calibration and Why It's Required After a Windshield Replacement

What Is ADAS Calibration and Why It's Required After a Windshield Replacement

If your vehicle has lane-keeping assist, automatic emergency braking, or adaptive cruise control, it likely has a camera mounted near the windshield — and replacing that windshield can affect how well those features work unless the camera is recalibrated afterward.

Where the Camera Sits

Many newer vehicles have a forward-facing camera mounted at the top of the windshield, just behind the rearview mirror. This camera feeds data to driver-assist systems that help keep the vehicle in its lane, detect obstacles, and support automatic braking.

Why a New Windshield Affects It

Even with a precise installation, a new windshield can shift the camera's exact positioning by a fraction of a degree — enough to affect the accuracy of what it "sees" relative to the road ahead. That small shift is why calibration is a required step after replacement on equipped vehicles, not an optional add-on.

Static vs. Dynamic Calibration

Static calibration uses a target board positioned at a precise distance from the vehicle in a controlled setting. Dynamic calibration involves driving the vehicle under specific conditions while the system recalibrates itself. Some vehicles require one method, some require both, depending on the manufacturer's specifications.

What Happens If You Skip It

Skipping calibration on a vehicle that requires it means those safety systems may not function as designed — potentially misjudging distances or lane position. It's a safety consideration, not just a manufacturer formality.

Had a windshield replaced recently and not sure if calibration was completed? San Tan Auto Glass can check and calibrate as needed — reach out to confirm your vehicle's status.

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