CARFACTBOOK / DIAGNOSTIC REFERENCE

Start with the symptom. Follow the evidence.

Choose a symptom and your exact chassis when possible. Each next check follows the result you record—not a guessed failed part. CarFactBook keeps a traceable path and prepares a practical mechanic handoff.

Symptom first

What are you seeing?

Electrical

Won't start / hard starting

Check reviewed reports for Honda Shuttle GP8.

Electrical

Warning light or message

Check reviewed reports for Honda Shuttle GP8.

Cooling

Overheating / running hot

Check reviewed reports for Honda Shuttle GP8.

A/C / climate

A/C not cold

Check reviewed reports for Honda Shuttle GP8.

Suspension / steering

Vibration / shaking

Check reviewed reports for Honda Shuttle GP8.

Brakes

Brake problem

Check reviewed reports for Honda Shuttle GP8.

Hybrid / EV system

Hybrid-system problem

Check reviewed reports for Honda Shuttle GP8.

Fuel / emissions

Poor fuel economy

Check reviewed reports for Honda Shuttle GP8.

Choose an exact vehicle

Selected: Honda Shuttle GP8 · 2015–2022

Diagnostics v3 · Structured symptom flow

Hybrid-system problem — structured test-result path

0 results recorded
Safety boundary. High-voltage hybrid/EV systems can be hazardous. Do not open or probe high-voltage components unless you are trained and equipped for the vehicle.
Next reachable check

Is there an exact hybrid-system warning or diagnostic code?

The exact message/code is stronger evidence than guessing which hybrid component failed.

Mechanic handoff summary

Further evidence required. 0 reachable results recorded.

Results stay on this page until you leave or change vehicle/symptom. Optional saving stores only this v3 session on this browser, separate from Garage and Vehicle Passport. It is not uploaded or shared. References are refreshed from CarFactBook when you return.

Preparing Diagnostics v3 handoff…

After a mechanic checks or repairs the car

Close the loop with the actual diagnosis, repair, part, cost and follow-up. The exact vehicle, symptom area and the test-result path above are prefilled, but you can edit them before submitting.

Choose an exact vehicle above to prepare a repair-outcome report.Reports remain pending until CarFactBook reviews them. A diagnostic path or external test result never becomes a confirmed diagnosis automatically.
Honda Shuttle GP8

Useful references for your exact car

These references relate to the selected symptom. They do not identify a faulty component or recommend replacing it. Confirm equipment, production period and source caveats for your individual car.

Verified facts

12V battery →

38B19L-MF · 28Ah(5) / 35Ah(20)

Use the specified battery type and confirm the installed battery before purchase.

Honda Motor Co. · Verified 2026-10-04

Engine coolant capacity →

3.8 L including 0.40 L reserve tank

Reference replacement quantity.

Honda Motor Co., Ltd. · Verified 2026-10-06

Hybrid motor code and type →

H1 · AC synchronous motor

Motor rating is separate from engine/system output.

Honda Motor Co., Ltd. · Verified 2026-10-06

Hybrid motor output and torque →

22 kW (29.5 PS) at 1,313–2,000 rpm · 160 N·m at 0–1,313 rpm

Motor figures are not a combined system rating.

Honda Motor Co., Ltd. · Verified 2026-10-06

Maintenance

Documented service references; your service history determines what is due.

12V battery service reference

Condition based

Use the documented 38B19L-MF auxiliary battery rated at 28 Ah (5-hour) / 35 Ah (20-hour).

Auxiliary 12V battery only; separate from the hybrid traction battery.

Honda Shuttle 12V battery FAQ ↗ · Verified 2026-10-06

Smart key battery replacement

Condition based

Use CR2032 for the Honda Smart Key; integrated keyless-entry keys use CR1620.

Replace when required; confirm key type before purchase.

Honda Shuttle smart-key battery FAQ ↗ · Verified 2026-10-06

Full exact-car maintenance schedule →

Parts / fitment

Reference specifications, not a shopping list or proof that these parts need replacement. Fitment conditions still apply.

12V battery

38B19L-MF · 28Ah(5) / 35Ah(20)

Use the specified battery type and confirm the installed battery before purchase.

Honda Motor Co. source ↗ · Verified 2026-10-04

Full exact-car parts references →

Reviewed repair evidence

Hybrid-system problem

0 related reports

Reports are matched by related system category for Honda Shuttle GP8. Compare the recorded symptom and outcome; a repair on another car does not diagnose yours.

No reviewed match yet. CarFactBook will not manufacture a likely cause just to fill this screen. Check the exact vehicle facts or contribute a real repair outcome through Problems.

Browse or contribute reviewed problem & repair evidence →