ADAS Calibration
ADAS recalibration after glass replacement
Your windshield may host cameras and sensors that power safety features. Replacing the glass can shift their alignment — recalibration keeps them accurate.
What is ADAS?
Advanced Driver Assistance Systems — lane-keeping, automatic emergency braking, adaptive cruise, and more — often rely on a camera mounted to the windshield.
Why recalibrate?
A new windshield can change the camera’s sight angle by millimeters. Without recalibration, safety features may not respond correctly.
How we handle it
- We check whether your vehicle requires static or dynamic recalibration before the install.
- We coordinate the recalibration so your safety systems are verified after replacement.
- We’re transparent if recalibration is needed and what it adds to the job.
Using Insurance?
Auto insurance may cover qualifying glass repair or replacement depending on your policy and deductible.
Safety technology, explained
What is ADAS and how does it work?
ADAS stands for Advanced Driver Assistance Systems — a suite of electronic safety features built into most modern vehicles. These systems don't just react to crashes; they actively work to prevent them. Every ADAS feature runs on the same three-layer pipeline: sensors collect data, computers interpret it, and the vehicle takes action.
Sensors — the eyes
Cameras (often bonded to your windshield), radar units, and ultrasonic sensors continuously scan the road: lane markings, vehicles ahead, pedestrians, and obstacles.
Computers — the brain
Electronic control units process that sensor data in real time, comparing it against manufacturer-programmed parameters to decide whether the situation is safe.
Actions — the response
The system responds in two ways: warnings to you (dash alerts, chimes, steering vibration) and physical interventions (auto-braking, steering correction, speed adjustment).
Common ADAS examples in your vehicle
Adaptive cruise control
Maintains your set speed and automatically slows or accelerates to keep a safe following distance from the vehicle ahead.
Automatic emergency braking
Detects an imminent frontal collision and applies the brakes if you don’t react in time — one of the most crash-preventing ADAS features.
Lane departure warning
Watches lane markings through a camera; if you drift without signaling, it warns you and can gently steer you back.
Blind spot detection
Radar sensors monitor the zones beside and behind you, lighting a mirror indicator or sounding an alert before you change lanes into another vehicle.
Parking assistance
Ultrasonic sensors measure parking spaces and nearby obstacles — backing you in automatically or warning you before contact.
Why this matters for auto glass: many of these features — especially adaptive cruise control, automatic emergency braking, and lane departure warning — depend on a camera mounted directly to your windshield. Replace the glass, and that camera's sight angle can shift by millimeters. That's exactly why recalibration exists.
Our process
How Auto Glass Guys recalibrates your vehicle — step by step
Recalibration isn't guesswork. We follow a three-phase, OEM-specified procedure that eliminates physical variables, realigns your sensors to factory precision, and proves the result before your vehicle goes back on the road.
Phase 1 — Pre-calibration & vehicle prepRequired for both methods
Before any programming starts, our technicians eliminate every physical variable that could throw off the sensors.
Pre-repair scan
We connect an OEM-compatible diagnostic scan tool to read your vehicle’s baseline condition and identify any stored Diagnostic Trouble Codes (DTCs) before programming starts.
Mechanical standardization
The car must sit exactly level per manufacturer specs — we set tire pressures, check wheel alignment, fill the fuel tank, and make sure the trunk is free of heavy cargo.
Sensor cleaning
We physically clean the windshield glass and external sensor lenses so dirt, smudges, or obstructions can’t throw off the calibration readings.
Phase 2 — The calibration process(your vehicle's make and model dictates which procedure)
Option A: Static calibration (in-shop setup)
Standard for forward-facing cameras and radar units after windshield or bumper replacements.
- 1
Environmental setup
Your vehicle is placed in a flat, open bay with uniform, diffused lighting — the background must be completely clear of clutter, tools, or shadows that could confuse the cameras.
- 2
Geometrical alignment
We establish your vehicle’s exact mathematical centerline using lasers, plumb bobs, and wheel-mounted optical targets.
- 3
Physical target positioning
Using specialized ADAS rigs, OEM-compliant target boards are placed at exact distances, angles, and heights relative to your car.
- 4
Execute the electronic reset
The scan tool commands your vehicle’s computer to run the calibration routine — the cameras scan the targets, measure misalignment data, and automatically save the corrected angles.
Option B: Dynamic calibration (on-road drive)
The car's computer learns its parameters from real-world driving environments.
- 1
Initiate calibration mode
We plug the scan tool into your car’s OBD-II port, open the ADAS menu, and start a dynamic calibration session.
- 2
Execute the prescribed drive test
The technician takes the car onto an open road with clearly visible lane markings and minimal traffic.
- 3
Maintain target conditions
The manufacturer dictates exact parameters — for example, holding a constant 40–60 MPH for a set distance while keeping the vehicle perfectly centered in its lane.
- 4
Monitor and save
The scan tool tracks progress in real time; once the camera has mapped enough roadway data, the software confirms a successful calibration.
Phase 3 — Validation & quality control
Calibration isn't done until it's proven. Every job finishes with three verification steps:
Post-calibration verification scan
A final diagnostic scan confirms all trouble codes are cleared and every safety module is active.
On-road validation drive
A final test drive safely verifies that features like adaptive cruise control and lane keep assist react exactly as intended.
Documentation
You receive an official calibration report certifying your sensors were realigned to exact OEM specifications.