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What is Windshield Calibration and Why You Can’t Skip It?

August 31, 2023

Imagine you’ve just had your vehicle’s windshield replaced. The crystal-clear glass looks pristine, and you’re ready to hit the road. But, wait – did you consider getting your windshield calibrated? If you’re scratching your head, wondering what that means, you’re not alone. Windshield calibration is a crucial, yet often overlooked, step that modern drivers should be aware of. Let’s dive deep into the world of windshield calibration, its significance, and why you absolutely shouldn’t skip it.

Understanding Windshield Calibration

The windshield is no longer only a barrier against the weather in a world where cars have developed from simple tools of transportation to tech-savvy, sophisticated robots. Modern windshields, particularly in recent models, are essential parts of the ADAS (advanced driver assistance systems) of the car. These systems have functions like autonomous emergency braking, adaptive cruise control, and lane departure warnings, among others.

For ADAS to function correctly, they often rely on sensors and cameras fixed onto, or embedded within, the windshield. Whenever a windshield is replaced or even repaired, the alignment of these sensors can be disturbed. This is where windshield calibration comes in. It is the process of adjusting the ADAS components to ensure that they function accurately post-repair or replacement.

The Two Types of Calibration

Windshield calibration can generally be categorized into two main types:

Static Calibration:

This process is conducted indoors, often in a garage or workshop. The vehicle is positioned in front of a target board or a calibration screen, which the cameras and sensors recognize. The vehicle remains stationary, and its ADAS systems are recalibrated by reading these targets.

Dynamic Calibration:

In contrast, dynamic calibration involves the vehicle being driven on the road at specific speeds to recalibrate its ADAS. An expert technician usually performs this, using specialized equipment to monitor and adjust the ADAS until they function as intended.

Why You Can’t Skip Windshield Calibration

You might be tempted to bypass windshield calibration, thinking, “I’ve driven my car for years. A little misalignment won’t make much difference.” But here are compelling reasons why you should reconsider:

Safety First:

ADAS systems are designed to enhance the safety of the vehicle, its occupants, and other road users. A misaligned sensor or camera can give false readings or fail to provide crucial alerts. For example, if your car’s automatic braking system doesn’t recognize an obstacle because of a calibration issue, it might not activate when needed, leading to potential accidents.

Accuracy is Key:

ADAS features often rely on precision. A slight misalignment can result in significant deviations. Think about lane departure warnings – if the system isn’t accurately calibrated, it might misread lane markings, alerting you unnecessarily or, worse, not alerting you when it should.

Financial Implications:

While there might be an upfront cost associated with windshield calibration, consider the potential financial repercussions of skipping it. An accident due to a malfunctioning ADAS system can lead to expensive repairs, medical bills, and even increased insurance premiums.

Legal Repercussions:

In some places, driving a vehicle with malfunctioning safety systems could land you in legal trouble. Ensuring that your vehicle’s systems work correctly is not only a matter of personal safety but also a legal obligation.

Peace of Mind:

Knowing that your vehicle’s safety systems are functioning correctly offers peace of mind. You can drive confidently, trusting that your car is equipped to assist you in unpredictable situations.

Integration with Other Systems:

Modern vehicles are marvels of interconnected systems. ADAS doesn’t work in isolation; it often collaborates with other vehicle systems like navigation, telemetry, and even entertainment units. A misaligned sensor from the windshield can cascade its errors, causing other integrated systems to misbehave or provide incorrect information. For instance, if a car’s adaptive cruise control, which relies on a camera fixed on the windshield, malfunctions due to poor calibration, it could affect how the navigation system calculates ETA or how the car manages fuel efficiency.


Accepting these developments in our vehicles is a logical move at a time when technology is quickly permeating practically every aspect of our lives. The obligation to make sure technology works properly exists, as it does with all technology. Windshield calibration, though perhaps a minor-sounding procedure, plays a significant role in ensuring our high-tech vehicles remain safe on the roads.

If you’ve recently replaced or repaired your windshield, don’t treat calibration as an optional extra. Consider it a requirement for guaranteeing both your safety and the safety of everyone else on the road. In the end, road safety should never be compromised, and a properly calibrated car is a crucial component of that.

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