ADAS Recalibration After Windshield Replacement
If your vehicle has lane-keep assist or automatic emergency braking, the camera that runs it lives behind the windshield. Replace the glass and that camera has to be recalibrated.
What ADAS is and where it lives
ADAS stands for Advanced Driver Assistance Systems: lane departure warning, lane-keep assist, adaptive cruise control, automatic emergency braking, traffic sign recognition. On most vehicles the forward-facing camera that drives all of it is mounted to a bracket bonded to the inside of the windshield, usually behind the mirror.
That camera was aimed at the factory to a tolerance measured in fractions of a degree. Take the old glass out and set new glass in, and the camera is now looking somewhere very slightly different. It has to be recalibrated to the new glass or it reads the road wrong.
Why a fraction of a degree matters
A camera aimed less than one degree off is looking at a spot roughly two feet from where it thinks it is by the time the view reaches 100 feet down the road. That is the difference between a lane-keep system tracking the center of your lane on the 183A and one drifting you toward the shoulder, or an automatic braking system that reads a stopped car half a second late.
This is not an upsell. An uncalibrated ADAS system is worse than no system at all, because you still trust it.
Static vs dynamic calibration
- Static calibration uses a printed target board set at a precise distance and height in front of the vehicle on level ground. Common on Honda, Subaru, Toyota, and most European vehicles.
- Dynamic calibration requires driving the vehicle at a steady speed on a well-marked road while a scan tool teaches the camera. Common on Ford and GM.
- Both are required by some manufacturers, in sequence. We confirm which your vehicle needs before we dispatch.
Is calibration covered by insurance?
When recalibration is required as a direct result of a covered windshield replacement, insurers generally cover it as part of the same glass claim. It is documented as a separate operation with its own line, but it falls under the same claim and, on most full-coverage policies, the same deductible treatment as the glass.
Tell us your year, make, and model when you call and we will tell you before dispatch whether your vehicle needs calibration and which type.
Frequently asked questions
Does windshield replacement require ADAS recalibration?
If your vehicle has lane-keep assist, lane departure warning, adaptive cruise, or automatic emergency braking, then almost certainly yes. On most vehicles the camera driving those systems is mounted to the windshield, and replacing the glass moves it. Roughly speaking, most 2018-and-newer vehicles need it. Tell us your year, make, and model and we confirm before dispatch.
Is ADAS calibration covered by insurance?
In Texas, when recalibration is required as a direct result of a covered windshield replacement, insurers generally cover it as part of the same glass claim. It appears as a separate documented operation but falls under the same claim and, on most full-coverage policies, the same deductible treatment as the glass.
Can I just skip the calibration?
You should not. An uncalibrated forward camera does not switch off, it simply reads the road inaccurately, which is more dangerous than having no driver assistance at all because you still trust it. Many vehicles will also throw persistent dash warnings, and skipping documented calibration can create liability questions after a collision.
What is the difference between OEM and aftermarket windshield glass?
OEM glass comes from the same manufacturer that supplied your automaker, with the automaker’s logo. OEM-equivalent (OEE) is made to the same specification without the branding. Economy aftermarket varies widely in optical quality and thickness. For any vehicle with a camera behind the glass we push for OEM or high-grade OEE, because optical distortion in cheap aftermarket glass can prevent a successful ADAS calibration.
Cracked windshield in Leander?
Tell us your vehicle and we confirm your coverage on the phone. Most drivers with full coverage pay nothing out of pocket.