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Hybrid propulsion systemPart report

2005 Toyota Prius Hybrid propulsion system Problems

Complaints
3about this part
Share
0%of 1,051 total for the year
Median mileage
153,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the hybrid propulsion system of the 2005 Toyota Prius, 0% of the 1,051 complaints for this model year. Where a mileage was given, the median is 153,000 miles. 1 recall campaign on record is filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“The contact owns a 2005 Toyota Prius. The contact stated that while driving with the cruise control activated at 75 MPH, all of the warning indicators on the instrument panel illuminated in addition to the inverter cooling system warning message displaying. The contact shut off the engine but the failure was still present once restarted. …”

NHTSA complaint #10583486, filed 2014-04, 153,000 miles

“The contact owns a 2005 Toyota Prius. While driving approximately 35 MPH, the vehicle stalled and all the warning indicators illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with an inverter water pump failure. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact that the VIN was not included in NHTSA campaign number: 12v563000 (engine and engine cooling, hybrid propulsion system). The failure mileage was approximately 160,000.”

NHTSA complaint #10990902, filed 2017-05, 160,000 miles

“The contact owns a 2005 Toyota Prius. The contact stated that while driving 55 MPH, the vehicle suddenly stalled. The vehicle was towed to the dealer where it was found that the inverter converter needed to be replaced. The contact was informed that repairs completed under NHTSA campaign id number: 12v536000 (hybrid propulsion system: inverter) may have caused the failure. The manufacturer was notified and offered to pay for a portion of the repair. The vehicle was not repaired. …”

NHTSA complaint #10490729, filed 2013-01, 116,000 miles

Related recalls

Related service bulletins

Hybrid propulsion system: other model years

YearComplaintsShare of year
202214%
201611%
201532%
201452%
201382%
201261%
2011102%
2010301%
200830%
200720%
200610%
200530%
200111%

Other parts of the 2005 Toyota Prius

Exterior lighting
346 complaints
Brakes
282 complaints
Electrical system
178 complaints
Vehicle speed control
109 complaints
Engine cooling
64 complaints
Other or unknown
56 complaints
Air bags
44 complaints
Transmission and drivetrain
41 complaints
Steering
39 complaints
Fuel system
28 complaints
Electronic stability control
20 complaints
Engine
15 complaints

← All problems reported for the 2005 Toyota Prius

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology