Service
ADAS Calibration After Windshield Replacement
If your vehicle is equipped with Advanced Driver Assistance Systems (ADAS)—features like lane-keeping assist, automatic emergency braking, or forward collision warning—a windshield replacement may require sensor and camera recalibration before those systems work correctly again. Skipping this step isn’t just a technical oversight; it’s a safety risk. Keystone Auto Glass helps Pennsylvania drivers understand what’s required and ensures your vehicle leaves our shop road-ready.
Why ADAS Calibration Matters
Most modern vehicles mount cameras, radar sensors, and lidar units directly to or behind the windshield. These sensors power critical safety systems including:
- Lane Departure Warning & Lane-Keeping Assist
- Automatic Emergency Braking (AEB)
- Adaptive Cruise Control
- Forward Collision Warning
- Traffic Sign Recognition
When the windshield is removed and replaced—even with a perfectly matched OEM or OEM-equivalent glass—the camera’s field of view and angle can shift by fractions of a degree. At highway speeds, that small offset can cause the system to detect lane lines, obstacles, or vehicles incorrectly. Calibration restores the sensor to factory specification so your safety systems perform as designed.
Static vs. Dynamic Calibration: What’s the Difference?
Depending on your vehicle’s make and model, calibration will be performed one of two ways—or sometimes both:
Static Calibration is performed in a controlled environment using specialized targets and diagnostic equipment. The vehicle must be stationary, on a level surface, and positioned precisely relative to calibration targets. This is typically required for vehicles from manufacturers including Toyota, Honda, Subaru (EyeSight), and many others.
Dynamic Calibration is completed by driving the vehicle at a specified speed on roads with clearly visible lane markings while the system recalibrates itself. Some vehicles require a combination of static and dynamic procedures.
We will identify the correct calibration procedure for your specific vehicle and coordinate accordingly—so you don’t have to figure it out yourself.
Our Calibration-Ready Installation Process
Keystone Auto Glass handles ADAS coordination as part of your windshield replacement service. Here’s how we approach it:
- Vehicle Identification: We confirm your year, make, model, and trim level before your appointment to determine whether calibration is required and what type.
- OEM-Compatible Glass: We install glass that meets or exceeds original equipment specifications, which is a prerequisite for accurate calibration.
- Calibration Scheduling: If your vehicle requires static calibration using specialized equipment, we coordinate with a certified calibration partner so you have a single, seamless service experience.
- Documentation: We provide a record of the services performed, which can be important for warranty and insurance purposes.
What to Check After Your Service
After your windshield replacement and any required calibration, take a few minutes to verify the following before driving on Pennsylvania highways:
- No warning lights on the dashboard related to camera, radar, or driver assistance systems. Common indicators include a camera icon, a collision warning symbol, or a lane departure alert.
- Lane-keeping and lane departure systems are active. Enable them in your vehicle settings and confirm they respond normally on a road with clearly painted lane markings.
- Adaptive cruise control engages and holds distance correctly without sudden braking or unexpected acceleration.
- Automatic emergency braking test mode (if your manufacturer provides one) shows no faults.
- Rearview camera and display appear correctly oriented with no image distortion (if your vehicle uses a camera embedded in or near the windshield area).
If any warning light is illuminated after service, do not assume it will clear on its own. Contact us or your calibration technician before relying on those systems.
Does Pennsylvania Law Require ADAS Calibration?
Pennsylvania does not currently have a specific state statute mandating ADAS recalibration after windshield replacement. However, vehicle manufacturers require calibration as part of their approved repair procedures, and insurers increasingly expect it. More importantly, driving with an uncalibrated ADAS system means your safety features may not function when you need them most. We follow manufacturer repair standards on every job.
Will Insurance Cover ADAS Calibration?
Many comprehensive auto insurance policies in Pennsylvania cover ADAS calibration as part of a windshield replacement claim. Coverage varies by carrier and policy. We can work directly with your insurer and help document the calibration requirement so the claim process goes smoothly. Ask us about insurance coordination when you call.
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