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Toyota Prius+ I faults

2 faults documented by at least two sources, listed by version then by mileage at onset when known.

Good choice, check first
Reliability
4.5/5

2 known faults

136h Active

  1. From 200,000 km

    Cylinder head gasket failure under difficult driving

    Severity 2/3 · Costly

    According to L'argus, the Prius 3 and Prius+ (2012-2019) can suffer a cylinder head gasket failure linked to the water pump under difficult driving conditions (a lot of city driving or idling), especially beyond 200,000 km with frequent temperature rises. A Toyota Motor Europe technical bulletin (2014) covers the Prius and the Prius+ and cites coolant consumption, white smoke and misfiring. The Toyota network reprograms the engine computer as a precaution.

    Versions
    136h Active, 136h Lounge
    Onset
    from 200,000 km
    Repair
    not documented

  2. 2015 recall: hybrid inverter software bug

    Manufacturer recall

    In 2015, Toyota recalled Auris Hybrids and Prius+ built from May 2010 to November 2014 (22,362 vehicles in France according to the press): a programming error in the hybrid system's inverter could cause overheating and a switch to a degraded mode with reduced power, more rarely an immobilisation. The software update takes around thirty minutes and is free of charge.

    Fixed free of charge by a dealer and not counted in the reliability score: ask for proof the work was done (invoice, or a VIN check at a dealer).

    Versions
    136h Active, 136h Lounge
    Onset
    not documented
    Repair
    not documented

136h Lounge

  1. From 200,000 km

    Cylinder head gasket failure under difficult driving

    Severity 2/3 · Costly

    According to L'argus, the Prius 3 and Prius+ (2012-2019) can suffer a cylinder head gasket failure linked to the water pump under difficult driving conditions (a lot of city driving or idling), especially beyond 200,000 km with frequent temperature rises. A Toyota Motor Europe technical bulletin (2014) covers the Prius and the Prius+ and cites coolant consumption, white smoke and misfiring. The Toyota network reprograms the engine computer as a precaution.

    Versions
    136h Active, 136h Lounge
    Onset
    from 200,000 km
    Repair
    not documented

  2. 2015 recall: hybrid inverter software bug

    Manufacturer recall

    In 2015, Toyota recalled Auris Hybrids and Prius+ built from May 2010 to November 2014 (22,362 vehicles in France according to the press): a programming error in the hybrid system's inverter could cause overheating and a switch to a degraded mode with reduced power, more rarely an immobilisation. The software update takes around thirty minutes and is free of charge.

    Fixed free of charge by a dealer and not counted in the reliability score: ask for proof the work was done (invoice, or a VIN check at a dealer).

    Versions
    136h Active, 136h Lounge
    Onset
    not documented
    Repair
    not documented

Price and diagnose repairs

Read fault codes

An OBD scanner plugged in under the steering wheel shows stored fault codes, even with warning lights off: useful during the test drive.

Parts and maintenance

Compare prices of parts for the Toyota Prius+ I (timing, brakes, filters) to estimate the repairs to plan for.

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