CarFactBook Diagnostics V2.3

Start with what the car is doing.

Choose a symptom and, when possible, an exact vehicle code. Work through structured observations first, then compare them with reviewed owner evidence. CarFactBook does not invent a diagnosis or rank a failed part from unsupported anecdotes.

Symptom first

What are you seeing?

Electrical

Won't start / hard starting

Check reviewed reports for Toyota Prius ZVW30.

Electrical

Warning light or message

Check reviewed reports for Toyota Prius ZVW30.

Cooling

Overheating / running hot

Check reviewed reports for Toyota Prius ZVW30.

A/C / climate

A/C not cold

Check reviewed reports for Toyota Prius ZVW30.

Suspension / steering

Vibration / shaking

Check reviewed reports for Toyota Prius ZVW30.

Brakes

Brake problem

Check reviewed reports for Toyota Prius ZVW30.

Hybrid / EV system

Hybrid-system problem

Check reviewed reports for Toyota Prius ZVW30.

Fuel / emissions

Poor fuel economy

Check reviewed reports for Toyota Prius ZVW30.

Choose an exact vehicle

Selected: Toyota Prius ZVW30 · 2009–2015

Structured checks

Work through observations, not guesses

0/2 checked
Safety first. If vibration is severe, steering control changes, or a tyre/wheel appears damaged, stop driving and have the vehicle inspected.
Check 1

Does the vibration happen while the vehicle is stationary?

Stationary versus road-speed vibration is a useful first split.

Check 2

Does vibration change with road speed?

A speed-related pattern is useful evidence for wheel/tyre/driveline inspection.

These checks organize observations and safety decisions. They are not a substitute for manufacturer service procedures or a qualified diagnosis, and CarFactBook does not assign a failed part without supporting evidence.

Diagnostic summary

Further evidence required. 0 of 2 observations recorded.

Answers stay on this page until you leave or change vehicle/symptom. Optional saving stores only this session on this browser, separate from Garage and Vehicle Passport. It is not uploaded or shared. Restore explicitly after returning to the same selection; references are refreshed from CarFactBook.

Preparing session summary…

After a mechanic checks the car

Close the loop with the actual diagnosis, repair, part, cost and outcome. The exact vehicle, symptom area and your diagnostic observations 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 session does not become a confirmed diagnosis automatically.
Toyota Prius ZVW30

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

2011 engine oil capacity →

3.9 L without filter / 4.2 L with filter

The capacity is a refill reference for the cited ZVW30 owner-manual period. After service, verify the final oil level with the dipstick on level ground.

Toyota Motor Corporation · Verified 2026-10-05

Engine oil viscosity →

0W-20 preferred; 5W-20, 5W-30 or 10W-30 also specified

This source is from the 2014 production-period manual. Use the specification applicable to the exact production period and ambient conditions.

Toyota Motor Corporation · Verified 2026-10-02

Factory tire size — 2011 L →

185/65R15 88S

Other ZVW30 grades use different tire/wheel packages; confirm the tire placard.

Toyota Motor Corporation · Verified 2026-10-01

Tire pressure — 2010 manual →

185/65R15: 250/240; 195/65R15: 230/220; 215/45R17: 230/220 kPa front/rear

ZVW30 tire packages and recommended pressures changed across grades and production periods. Confirm the tire placard on the individual vehicle.

Toyota Motor Corporation · Verified 2026-10-01

Step-by-step guides

How to Check Toyota Prius ZVW30 Tire Pressure →

Match your ZVW30 tyre size to Toyota's source-backed pressure reference before adjusting the tyres.

Easy · 5–10 minutes

The cited values are configuration and production-period sensitive. The individual vehicle placard is the final check.

Maintenance

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

Tyre-pressure service reference

Condition based

Use the Toyota manual pressure for the fitted factory tyre package: 185/65R15 250/240 kPa, 195/65R15 230/220 kPa, or 215/45R17 230/220 kPa front/rear.

The individual tyre-pressure placard and fitted wheel package remain the final check.

Toyota Japan Prius 2010 owner manual ↗ · Verified 2026-10-02

Full exact-car maintenance schedule →

Parts / fitment

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

Engine oil viscosity

0W-20 preferred; 5W-20, 5W-30 or 10W-30 also specified

This source is from the 2014 production-period manual. Use the specification applicable to the exact production period and ambient conditions.

Toyota Motor Corporation source ↗ · Verified 2026-10-02

Suspension architecture — 2011 L

Strut coil-spring front with stabilizer · torsion-beam coil-spring rear

Use exact grade/production data for replacement component part numbers.

Toyota Motor Corporation source ↗ · Verified 2026-10-02

15-inch aluminum wheels — 2011 L

15-inch aluminum wheels standard

Exact to the cited L grade/period; wheel offset and fastener details need their own verified source.

Toyota Motor Corporation source ↗ · Verified 2026-10-02

Factory tire size — 2011 L

185/65R15 88S

Other ZVW30 grades use different tire/wheel packages; confirm the tire placard.

Toyota Motor Corporation source ↗ · Verified 2026-10-01

Factory tires — 2010 15-inch package

195/65R15 91S

Listed in the 2010 ZVW30 owner manual. Grade and production-period fitment varies; confirm the tire placard.

Toyota Motor Corporation source ↗ · Verified 2026-10-01

Factory tires — 2010 17-inch package

215/45R17 87W

Listed in the 2010 ZVW30 owner manual. Grade and production-period fitment varies; confirm the tire placard.

Toyota Motor Corporation source ↗ · Verified 2026-10-01

Factory tires — 2011 L

185/65R15 88S

Grade-specific ZVW30 reference. Touring and other grades can use different wheel/tire packages; confirm the tire placard.

Toyota Motor Corporation source ↗ · Verified 2026-10-01

Full exact-car parts references →

Reviewed repair evidence

Vibration / shaking

0 related reports

Reports are matched by related system category for Toyota Prius ZVW30. 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 →