Underhood — Every service. Every mile. All in one place.Every service. Every mile. All in one place.

FROM RESEARCH TO REMINDERS

AI vehicle maintenance plans.
A head start you control.

Turn your car or truck’s details into an editable service plan. Underhood researches maintenance intervals and adds missing reminders—right beside the history and receipts you already keep.

Build my maintenance plan

No scanner required. Existing reminders stay unchanged.

HOW IT WORKS

From “what’s due?” to a useful starting plan.

  1. 01

    Tell it about your vehicle.

    Add your year, make, model, engine, drivetrain, and driving use. Accurate details help distinguish one vehicle configuration from another.

  2. 02

    Build the plan in your garage.

    Open your vehicle’s AI planning section and choose “Build and add my AI service plan.” Underhood researches the schedule and shows progress while it works.

  3. 03

    Review it. Make it yours.

    Missing services are added automatically. Check the sources and intervals, edit anything that needs adjusting, and enter actual last-completed details.

CLARITY, NOT BLIND CONFIDENCE

A manufacturer interval and an estimate
should never look like the same thing.

Manufacturer-backed guidance

Research starts with manufacturer sources. When an applicable interval is found, the plan identifies its basis and source so you can check it against your exact vehicle and operating conditions.

Always review the reference.

Clearly labeled estimates

When exact guidance is unavailable, Underhood can use conservative estimates from named automotive references. Estimates and confidence are labeled so you know where a closer review is needed.

An estimate is not a manufacturer requirement.

AI can make mistakes. Use the plan as a starting point, not a guarantee or a substitute for your owner’s manual, onboard maintenance indicators, or a qualified technician. Safety-critical symptoms need attention—not just a reminder.

MORE THAN AN AI ANSWER

The plan stays with
the proof.

A researched answer is useful. An editable plan beside your actual service history is easier to put to work. Underhood brings the next job and the last completed job into the same private garage.

Explore the rest of your garage

Preserve what you already know.

Existing reminders stay unchanged. Creating a plan never invents completed services or fills in unknown history.

Keep the record after the work.

Log DIY maintenance or shop repairs with the actual date, mileage, cost, and receipts. Keep warranty notes and follow-ups with your records.

Stay in charge of the details.

Edit or remove reminders as your needs change. Export your service history when you need to share it. Your saved VIN is excluded from AI schedule research.

BEFORE YOU BUILD

Questions about AI maintenance planning

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.

YOUR VEHICLE. YOUR NEXT STEP.

Put a plan behind
your next mile.

Create an account or sign in, add your vehicle, and build your editable maintenance plan.

Get started with UnderhoodSee plans and pricing