ADAS on a Volvo Xc90 is often tied directly to the windshield, not just the camera itself. If your vehicle uses a windshield-mounted forward camera, replacement can require calibration because the camera's reference point depends on bracket position, glass curvature, and optical clarity through the viewing area. When calibration is required, it keeps lane centering, lane departure alerts, automatic emergency braking, adaptive cruise, and similar features responding accurately in real traffic. Without calibration, the vehicle may display alerts, lose accuracy, or disable driver-assist functions altogether. The trigger is not simply 'new glass'; it is whether the OEM procedure for your exact Volvo Xc90 build calls for recalibration after windshield replacement. Some models use static calibration with targets and measured distances in a controlled setup, while others require a dynamic calibration drive cycle with consistent lane markings and safe conditions. A thorough process typically includes diagnostic scans before and after the install to capture trouble codes, verify camera communication, and produce documentation for your records. During scheduling, Bang AutoGlass will identify likely ADAS needs, explain the calibration path, and help you plan the next step so there are no surprises after the mobile install. In practical terms, recalibration verifies the camera can 'see' correctly through the new glass and that any transferred brackets and mounts sit exactly where the OEM expects. If the procedure calls for it, treating calibration as part of the job helps avoid comebacks, warning lights, and performance drift over time.