Will it replace reminders I already saved?
No. Underhood adds missing services to your editable service plan and leaves existing reminders unchanged. You can edit or remove the new reminders afterward.
What happens when an exact manufacturer interval is unavailable?
Underhood can use conservative estimates from named automotive references. Estimated intervals are labeled separately from manufacturer-backed intervals. Review the source, conditions, and confidence, and confirm important intervals against your exact manual or with a qualified technician.
Does creating a plan mean the work is recorded as completed?
No. A plan is a set of reminders, not proof of completed maintenance. Underhood does not invent past service dates or mileage. Add your actual service history and last-completed details so the plan has a useful baseline.
Is my saved VIN sent for AI schedule research?
No. Your saved VIN is excluded from the AI schedule research request. Research uses the vehicle details and driving use you provide.
Can I use this for an RV?
Underhood also includes RV service planning, seasonal task suggestions, and separate component-hour reminders. A chassis schedule does not cover every RV appliance or component. Use your RV and component manuals to set the appropriate tasks and intervals.
Do I need a scanner or a particular phone?
No OBD scanner is required. Underhood works in a modern browser on iPhone, Android, Mac, and Windows. An internet connection is required to research plans and load or save records.