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Diagnose through conversation
Jax narrows symptoms with practical follow-up questions and reports how confident the diagnosis is.
HoodHero for drivers
Your car problem, explained properly.
Tell Jax what you can see, hear, smell or feel. He asks focused questions, identifies the likely cause and helps you decide whether to repair it, monitor it or call a professional.
- Free to download
- No scanner required
- Built around your vehicle
More than a fault-code reader
What HoodHero helps you do.
£
Compare real options
See estimated DIY and garage costs, likely time, difficulty, tools and parts before choosing a route.
✓
Follow a repair safely
Work through granular instructions with checkpoints, warnings and context for the job in front of you.
VIN
Identify the right vehicle
Use VIN or UK registration data where available to reduce guesswork around specification and fitment.
OBD
Make sense of OBD-II
Connect supported ELM327 equipment and turn diagnostic trouble codes into understandable next actions.
PDF
Build a useful history
Keep vehicles, diagnoses and completed repairs together, then export records for resale or reference.
How it works
A better decision in three steps.
Add your vehicle
Enter what you know or use a supported vehicle lookup to start with the right context.
Describe the symptom
Chat naturally, dictate hands-free or add a photo when something visual matters.
Choose the next step
Review confidence, safety, cost and difficulty before taking action.
Safety comes first
Know when not to keep driving.
HoodHero highlights urgent symptoms and repair risks, but it cannot physically inspect your vehicle.
Jax is an AI assistant, not a certified mechanic. If a warning involves braking, steering, fuel, fire, overheating or immediate danger, stop safely and seek qualified help.