EyeSight warning on your Forester, Outback, Legacy or Crosstrek, often with lane assist and Pre-Collision Braking flagging at the same time? EyeSight runs from two stereo cameras at the top of the windscreen, with no front radar to back them up. When the cameras drift out of alignment, the whole suite goes offline together. Here's what's actually happening and what calibration costs.
You can drive the car. EyeSight Adaptive Cruise, Pre-Collision Braking, Lane Keep Assist and Pre-Collision Throttle Management all stay offline while the warning's showing. Normal brakes, steering and conventional cruise still work. Leave more following distance until it's sorted.
Subaru's EyeSight is unique among ADAS systems: it reads the road through two stereo cameras at the top of the windscreen and uses the parallax between them to calculate distance. There's no front radar on most models. That makes EyeSight more sensitive to windscreen condition than most makes.
EyeSight uses two cameras side-by-side, about 35cm apart, mounted to the windscreen above the rear-view mirror. The system calculates distance from the parallax between them. When the windscreen moves or the cameras shift, the parallax calculation goes wrong, and the whole suite shuts down to be safe.
More than any other make. Because both EyeSight cameras are bonded to the new glass, any windscreen swap moves them both. The stereo alignment between the pair has to be re-established alongside the individual camera aim. Most windscreen fitters can't do that step. EyeSight stays offline until a workshop with stereo-pair calibration kit completes the job.
Subaru's published position is that OEM glass is required for EyeSight, because the stereo pair depends on the camera apertures sitting at exact spacing and the glass clarity being uniform across both. Aftermarket glass can fit physically but the two cameras then see slightly different things, and the parallax calculation can't lock. If the calibration won't hold after an insurance windscreen claim, the glass brand is the first thing our technicians check.
EyeSight's adaptive cruise, Pre-Collision Braking and Lane Keep Assist all read from the same stereo pair. When the cameras are off, every feature flags at once. The customer-facing dashboard text can be different per feature (often 'EyeSight Disabled' alongside a Lane Departure warning), but it's one underlying cause. One calibration brings them all back.
Even though EyeSight has no front radar, front-end work can still affect it indirectly. A bumper or suspension job that changes the car's ride height or front-end geometry shifts the angle the cameras read the road from. Worth flagging any recent front-end work when you book.
The Subaru Solterra is a rebadged Toyota bZ4X, so its driver assistance is Toyota Safety Sense, not EyeSight. The Solterra uses a single front-facing camera plus a radar, runs through Toyota's procedure with Techstream-compatible equipment. If you have a Solterra, mention it when you book so the workshop preps the right tooling.
If the trigger was a real impact, one or both cameras may have shifted physically rather than just lost calibration. Stereo cameras can't be calibrated against each other if one is mechanically misaligned. A diagnostic scan tells you which case you're in before any work is booked.
Worth checking first: confirm whether the warning followed a windscreen replacement (the dominant trigger), and note any other warnings showing at the same time (Lane Keep, Pre-Collision Braking, Adaptive Cruise often flag together). If EyeSight is still showing a fault, both cameras need recalibrating, and the stereo pair alignment has to be re-established.
On a Subaru that means a static procedure: the workshop sets a manufacturer-spec target board at the correct distance in front of the windscreen, runs the alignment routine through Subaru Select Monitor (SSM) or a compatible diagnostic platform, and calibrates both cameras individually and as a pair. On the Solterra the procedure follows Toyota Safety Sense via Techstream tooling.
It's a fixed £199 through our network for the EyeSight camera tier: scan, dual-camera calibration, certificate. If the calibration won't hold because the glass is aftermarket, OEM glass under the same insurance claim is usually the fix, and we supply the certificate as documentation. The full procedure is in our ADAS calibration guide.
Pricing is fixed across our network. Same price wherever you are in the UK. Your tier is set by what work has been done, not by your postcode or your car's make.
All prices include the diagnostic scan, the calibration procedure (static, dynamic, or both as required), a post-calibration check, and a calibration certificate. No charge for diagnostic if you decide not to proceed.
Send your registration and a line on what's happened. We'll come back with the fixed price, the nearest accredited workshop, and the soonest available slot.
Subaru's design choice. EyeSight uses two stereo cameras at the top of the windscreen and calculates distance from the parallax between them, the same way human binocular vision works.
The benefit is the system reads the road exactly as the driver sees it. The catch is that everything depends on the windscreen and the camera pair being in perfect alignment. A new windscreen always disturbs both, which is why EyeSight calibration is needed after almost every glass job.
EyeSight calibration is a fixed £199 across our accredited network, the same wherever you are in the UK. That covers the diagnostic scan, both individual camera calibrations and the stereo pair alignment, and a calibration certificate. EyeSight calibration is camera-only work, which is why it sits in the £199 tier rather than the £349 radar tier.
Because EyeSight is more sensitive to glass than most ADAS systems. The two cameras have to agree on what they're seeing, and aftermarket glass can leave them slightly out of agreement.
Subaru's published position statement specifies OEM glass for EyeSight-equipped vehicles. Go back to your insurer with the position statement and ask for OEM glass under the same claim. We supply the calibration certificate documenting what was attempted, which is what most insurers want to see.
No. Any workshop with Subaru SSM-compatible diagnostic equipment (or Toyota Techstream for the Solterra) and a calibration bay can do it, and our accredited network is set up for that. The dealer will charge their own labour rate for the same procedure. The certificate we issue is accepted by insurers and sits on the car's service history.
Windscreen replacement is the top EyeSight trigger by a long way. The dedicated guide for the broader windscreen-camera story.
The cross-make guide for lane keep warnings, useful if Lane Departure is the warning text on your dash.