OCM Auto

OCM Auto is a free companion app from O.C.M Autos, built for anyone who's ever stared at a dashboard light or a strange noise and wondered "how worried should I be?" It works completely offline, so it's there for you in the driveway, on the roadside, or anywhere signal doesn't reach.

* Diagnostic Checker
Select the symptoms you're noticing — a grinding noise, a burning smell, a warning light, a fluid leak — and get a plain-language read on likely causes, ranked by urgency: safe to monitor, get checked soon, or stop and check now.

* Warning Light Glossary
A searchable reference for common dashboard warning lights — what each one means and what to do about it, from washer fluid reminders to a flashing check-engine light.

* Maintenance Reminder
Log your last service date for oil changes, brake checks, tyre rotations and more. OCM Auto quietly tracks what's coming due — no push notifications, no permissions, just a clear dashboard whenever you open the app.
Built around your privacy, not around your data

* Works fully offline — no internet connection required
* No data collected — nothing you enter ever leaves your device
* No permissions requested
* No account, no sign-up, no ads

OCM Auto gives general guidance based on common causes and is not a substitute for a professional inspection. For an accurate diagnosis, book a consultation.