When EyeSight displays "Not Available" after windshield replacement on your 2020 Subaru Outback, the dual camera system has lost its calibration. This is expected behavior - EyeSight requires precise camera alignment that changes when the windshield mounting surface changes.
Why Windshield Replacement Affects EyeSight
EyeSight cameras are mounted directly to the windshield. The system's distance calculations depend on exact camera positioning and the optical properties of the glass. A new windshield, even OEM quality, changes these parameters enough to require recalibration. Using incorrect glass or installation methods makes calibration impossible.
Windshield Requirements for EyeSight
Subaru EyeSight requires windshields that meet specific optical standards - not all glass qualifies. The camera mounting bracket must be transferred correctly. Installation must follow Subaru procedures precisely. Using non-approved glass may prevent successful calibration entirely.
Calibration Process
EyeSight calibration requires Subaru SSM diagnostic software and specific calibration targets. The process involves precise target placement in front of the vehicle and a calibration drive sequence. This must be performed by a Subaru dealer or certified ADAS calibration center with proper equipment and training.
What to Do
If you had glass replaced through your insurance, request EyeSight-approved glass and calibration as part of the claim. If calibration fails repeatedly, the glass may not meet specifications - it may need replacement with proper EyeSight-compatible glass. Don't drive expecting EyeSight protection until calibration confirms the system is operational.