Model years Toyota Prius

2006 Toyota Prius

Complaints about this year name hid far more often than the other years of this generation — 26% of them, about the usual rate of 10%.

Generation 1 of the Toyota Prius, which began in 2004 and ran to 2009. Everything below compares this year against the others in that generation, not against a different car wearing the same name.

NHTSA opened a defect investigation into this model year.

Complaints filed1,439
Median for this model162
Involving a crash82
Involving a fire5
Recalls6
EPA combined46 mpg

What the complaints were about

Words owners used for the same problem are counted together, so a fault written four different ways is measured once. Grouped by which complaints they appear in, not by a list anyone wrote in advance.

Also unusual this year

What owners wrote

THE HID HEADLIGHTS ON MY 2006 TOYOTA PRIUS (40K MILES) GO OUT WHENEVER THE CAR [VIN] (BRAKING, SPEEDING UP, TURNING, GO OVER A SPEED BUMP). THE LIGHTS TURN BACK ON IF I FLIP THE HEADLIGHT SWITCH ON AND OFF. THIS APPEARS TO BE A WIDESPREAD ISSUE AFFECTING THOUS…
THE HID HEADLIGHTS ON THIS VEHICLE ARE INTERMITTENT. EITHER OR BOTH HEADLIGHTS FAIL WITHOUT WARNING, AND RE ILLUMINATE BY CYCLING THE HEADLIGHT SWITCH. SO FAR ONE DEALER REPAIR ATTEMPT HAS NOT BEEN SUCCESSFUL IN FIXING THE PROBLEM. REPAIRS FOR THIS HEADLIGHT S…

Verbatim from NHTSA complaint filings, with identifying details removed.

Recalls for this year

Own a 2006 Toyota Prius? What happened to yours?

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How this was worked out

Every year of the Toyota Prius was compared against its own history rather than against other cars, which removes popularity and age from the answer — a common car draws more complaints at equal reliability, and an older one has had longer to accumulate them. A year is flagged when it drew at least 2.5× this model's median and at least 50 complaints.

This is a fault record, not a review. Nobody files a federal complaint to say the car was fine, so it shows what tends to go wrong — not whether owners liked it, and not whether it is a good car.

Source: NHTSA complaints, recalls and investigations, retrieved . Look this vehicle up directly on NHTSA's site to check anything here.

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