📖 The Quick Answer
Two color cameras on the windshield, mounted about 13 inches apart, give EyeSight stereoscopic depth perception. The system bundles Pre-Collision Braking (AEB), Adaptive Cruise Control, Lane Departure and Sway Warning, Lane Keep Assist, Lead Vehicle Start Alert, and Pre-Collision Throttle Management.
⚙ How It Works (Sensors and Algorithm)
The two cameras capture synchronized stereo pairs at 30 to 60 frames per second. The ADAS computer triangulates depth to every pixel, identifying vehicles, pedestrians, cyclists, brake lights, and lane lines without needing radar. Newer EyeSight (2020+) added a wider field of view, color recognition for brake lights and turn signals, and improved low-speed pedestrian detection.
🛡 What It Protects Against
Rear-end and pedestrian crashes, lane departures, drowsy-driving crashes. IIHS data on Subaru EyeSight shows about a 41 percent reduction in front-to-rear crashes with injuries, among the strongest results of any system.
⚠ Limitations and When It Fails
No radar means EyeSight performs worse in heavy rain, fog, or snow than radar-fusion systems. Direct sunlight into the cameras can also temporarily blind it. A dirty windshield in front of the cameras disables EyeSight, and Subaru recommends not using shaded windshield films in that area.
🚗 Which Vehicles Have It
Standard on virtually every 2019+ Subaru with automatic transmission (Outback, Forester, Crosstrek, Ascent, Impreza, Legacy, WRX). Manual-transmission models historically did not have EyeSight, but Subaru has begun adding limited features to manuals.
🔧 Related TSBs and Recalls
Recall 19V-211 covered EyeSight software issues on 2019 Forester and Ascent. Multiple TSBs cover camera recalibration after a windshield replacement, which is mandatory.