Subaru EyeSight Fault: Why the Whole Suite Drops at Once

Because they read the road through the same two cameras. EyeSight is a stereo pair either side of the rear-view mirror: the system judges distance by comparing the two views, and Pre-Collision Braking, Adaptive Cruise and Lane Keep Assist all work from that one comparison, with no front radar to keep any of them running. So when the pair drifts out of alignment, after a windscreen swap, trim work near the mirror or a front-end knock, the car parks the whole suite rather than act on distances it can't trust. It looks like three faults, but it's one cause, and one stereo calibration brings the suite back: front camera calibration, £162 inc VAT (£135 +VAT) in a centre visit.

EyeSight books as a single front camera calibration on the rate card: one job covers both cameras and the stereo alignment between them, not a price per camera. Front camera calibration is £162 inc VAT (£135 +VAT), blind spot radar is the same rate, with the full rate card on this page. Two or more systems in one visit: the highest-priced system is full price and each additional system is 35% off at a centre. A diagnostic scan, when your job needs one, is priced and itemised separately. Your quote is confirmed in writing before anything is booked.

Not at the front. The core EyeSight package is camera-only: the two stereo cameras at the top of the windscreen do the distance measurement other makes hand to a front radar, which is why windscreen condition matters so much on a Subaru. Where a Subaru has blind spot monitoring, that runs from separate radar hardware in the rear bumper, outside the EyeSight camera suite. A blind spot warning after rear bumper work is therefore its own job, not an EyeSight one: blind spot radar calibration is £162 inc VAT (£135 +VAT) at a centre.

No. The job needs a calibration bay, the stereo target setup for your model, and Subaru's documented calibration procedure; our service centres run all three, and none of it is franchise-only. Provided the work runs to Subaru's specification, an independent calibration doesn't affect your warranty position under UK block exemption rules. Certificate to manufacturer tolerances, the same standard dealers issue. Dealer quotes for ADAS work run £300 to £900 in quotes customers have shown us.

This is a known EyeSight case. Two cameras reading through one pane means the glass has to be optically consistent across both, and distortion a single-camera system would tolerate can leave the two views disagreeing, so the calibration can't lock. Aftermarket glass is one of the first things the centre looks at when an EyeSight calibration won't lock. If a calibration won't hold after an insurance windscreen claim, the glass brand is one of the first things the centre checks, and it's worth going back to your insurer to ask for OEM glass under the same claim. The centre documents what was attempted and why, so you have the paper trail in writing for that conversation.

Usually not. When the cameras can't see, through a downpour, glare from low sun, mist on the inside of the glass or road film over their patch of windscreen, EyeSight suspends itself and tells you, then comes back once the view clears. That's a designed limitation of a camera-only system: there's nothing to calibrate and nothing to book. The free check is to clean the cameras' section of windscreen, inside and out, and let the screen demist fully. If the warning keeps returning on clean glass in clear weather, that's lost alignment rather than a blocked view, and the stereo calibration that resets it is £162 inc VAT (£135 +VAT) per system at a centre.

Usually the coding and the alignment. A replacement camera has to be coded to your car and then calibrated alongside its partner, so the pair reads the road identically, before the self-checks trust it; fitting the part does neither on its own. The rate card splits this in two: front camera module following replacement, the coding, comes to £229.20 inc VAT (£191 +VAT), and the EyeSight camera calibration is billed separately as its own line, the second system, so 35% comes off it. Mention whether the unit was new or used when you enquire: a used module can be attempted, coding one isn't always possible, and the centre confirms the scope in writing before anything is booked.