Hybrid battery ageing
usually 200,000–350,000 km · Medium risk
Signs: Fuel use up, hybrid warning
Fix: Recondition or replace
€1,200–3,000
Common faults, service intervals and costs
Toyota Prius II
2003–2009 · Toyota Prius 2
1
engines covered
3
known faults
26,347
roadworthiness tests in the statistics
11
official recalls
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Toyota Prius II was built from 2003 to 2009.
For this generation we cover 1 engines and 3 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Hybrid battery ageing: it usually appears at 200,000–350,000 km and costs €1,200–3,000 to fix.
In UK roadworthiness tests in 2024, at 250+ thousand km this model most often failed on: lights, wipers and visibility (25.1 %), suspension (13.8 %), body and corrosion (9.1 %). It fails less often than average on: brakes, suspension, steering.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 1.5 Hybrid (Toyota 1NZ-FXE / M15A) | Hybrid | Chain | 0W-20 / 0W-16 · API SN · ~3.7 L · every 15,000 km |
Faults by engine
1.5 Hybrid (Toyota 1NZ-FXE / M15A)
Inverter coolant pump (Prius II)
usually 150,000–250,000 km · Medium risk
model years 2003–2009 only
Signs: Hybrid system warning
Fix: Replace pump
€250–500
Brake actuator (ABS) (Prius II)
usually 150,000–300,000 km · High risk
model years 2003–2009 only
Signs: Brake warning lights, pump runs constantly
Fix: Replace the brake actuator
€1,000–2,500
Scheduled service
Intervals and typical prices for the 1.5 Hybrid (Toyota 1NZ-FXE / M15A) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Inverter coolantHybrid system | every 160,000 km or every 120 months | €80–160 |
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Hybrid battery cooling filter cleanHybrid system | every 30,000 km | €0–40 |
| Hybrid transaxle fluidTransmission | every 100,000 km | €80–160 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| Brake pads (regen-assisted)Brakes | usually at 80,000–160,000 km | €60–150 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 26,347 tests.
| thousand km | 50–100 | 100–150 | 150–200 | 200–250 | 250+ |
|---|---|---|---|---|---|
| Brakes | 5.0 % | 5.1 % | 6.0 % | 6.8 % | 7.9 % |
| Suspension | 2.8 % | 4.7 % | 8.1 % | 10.1 % | 13.8 % |
| Steering | 0.2 % | 0.4 % | 0.7 % | 0.8 % | 1.8 % |
| Tyres and wheels | 5.8 % | 6.0 % | 5.8 % | 7.0 % | 7.9 % |
| Lights, wipers and visibility | 14.1 % | 17.5 % | 21.1 % | 24.7 % | 25.1 % |
| Body and corrosion | 1.4 % | 2.7 % | 4.7 % | 7.0 % | 9.1 % |
| Exhaust, emissions and leaks | 2.1 % | 3.1 % | 4.2 % | 5.0 % | 6.8 % |
Owner complaints in the US
Which systems owners reported to the US agency NHTSA and at what mileage. Complaints are not confirmed faults and some relate to recalls. Sample: 6,765 complaints.
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (11). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
- Other Vehicle may not enter failsafe driving mode as intended in response to certain hybrid system faults14/01/2019 · R/2018/293
- Fire risk Fuel may leak / risk of fire22/09/2016 · R/2016/152
- Airbag Curtain shield airbag may deploy unintentionally12/09/2016 · R/2016/153
- Fire risk Loss of power may occur10/03/2014 · R/2014/024
- Brakes / ABS / ESP Braking efficiency may be affected02/07/2013 · R/2013/070
- Lights Short circuit may occur03/12/2012 · R/2012/146
- Steering Loss of steering03/12/2012 · R/2012/145
- Steering Steering control could be affected27/06/2011 · R/2011/065
The other recalls (3) are listed in the app.
Other generations
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 07/10/2026