About FixAI

How a diagnosis is produced

FixAI combines what it can see in your photos, what you describe, and documentation it retrieves for your specific vehicle. The retrieval runs in a fixed order so that the most authoritative evidence available is always preferred:

1. Vehicle guides on the server. Manuals and repair documentation installed by the operator, filtered to your manufacturer, model and year.
2. External vehicle documentation. If the installed guides do not cover the issue, FixAI searches for vehicle-specific manuals and technical documentation online.
3. Trusted automotive sources. If no vehicle-specific document can be located, FixAI searches reputable automotive references for your exact symptoms.

The evidence is then ranked by authority, and the AI reasons over it to produce the diagnosis. A deterministic safety layer reviews the result afterwards and can raise the severity or restrict the driving recommendation, but never relax them.

Source priority

• Tier A — manufacturer service manuals, owner's manuals, official technical documentation and technical service bulletins.
• Tier B — government automotive agencies, professional automotive databases and recognised technical organisations.
• Tier C — reputable repair references and professional publications.
• Tier D — forums and community discussions, used only as supplementary context and never allowed to override manufacturer specifications.

What FixAI will not do

• It will not invent torque values, fluid specifications, capacities, fuse ratings, electrical values or part numbers. If a figure cannot be traced to a retrieved source, it is reported as unverified.
• It will not present certainty it does not have. When evidence is insufficient, it says so and recommends a physical inspection.
• It will not ask you to upload a service manual. Locating documentation is the application's responsibility.

Your data

FixAI version 1 has no accounts and no cloud database. Saved vehicles, diagnosis history, preferences and drafts are stored in this browser's local storage and never leave your device except as part of a diagnosis request you initiate.

Uploaded images are held in server memory only for the duration of the analysis and are never written to disk. Because photographs of vehicles can incidentally capture licence plates, faces, house numbers or VIN information, it is worth cropping images to the area of concern before uploading.

Because storage is local: your data will not synchronise between devices, clearing browser data will delete it, and private browsing windows may not preserve it.

Limitations

A photograph and a written description are a narrow window into a mechanical system. Many faults are invisible in images, present intermittently, or require measurement to confirm. Treat every FixAI result as a starting point for investigation rather than a verdict.

Safety-critical systems deserve particular caution: brakes, steering, airbags, fuel systems, suspension, high-voltage electric vehicle components, batteries, cooling systems under pressure, and any procedure that involves lifting the vehicle. When the guidance and your own judgement disagree, favour the professional inspection.