NHTSA Complaint #10123793 — 2004 TOYOTA PRIUS

ENGINE AND ENGINE COOLING issue reported to NHTSA

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Vehicle Towed

Complaint Details

ODI Number	10123793
Vehicle	2004 TOYOTA PRIUS
Component	ENGINE AND ENGINE COOLING
Date of Incident	April 8, 2005
Date Filed	June 1, 2005
Mileage	41,900 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	Yes
State	MO

Consumer Description

ON FOUR SEPARATE OCCASIONS THE PRIUS HAS HAD A COMPLETE LOSS OF POWER TO THE GASOLINE ENGINE, ALL THE WARNING INDICATOR LIGHTS HAVE BEEN ILLUMINATED AND THE CAR WAS ABLE TO TRAVEL ONLY ON BATTERY POWER FOR A VERY SHORT DISTANCE BEFORE DRAINING THE BATTERY. TWICE THIS HAS OCCURRED AFTER STOPPING AT A STOP SIGN AND ATTEMPTING TO PROCEED FORWARD. TWICE IT HAS HAPPENED WHILE DRIVING ON THE HIGHWAY AT 60-70 MPH. WHEN IT OCCURRED ON THE HIGHWAY THE CAR LOST POWER EXCEPT FROM THE BATTERY THAT ALLOWED ONLY 40-42 MPH MAXIMUM SPEED. TWICE THE CAR WAS TOWED TO THE DEALER. THE FIRST TIME THEY PERFORMED A SOFTWARE UPDATE THE SECOND TIME THEY RESET THE COMPUTER. THE LAST TWO TIMES IT HAS HAPPENED I HAVE BEEN ABLE TO STOP THE CAR, DISCONNECT THE 12 VOLT BATTERY WHICH HAS RESET THE SYSTEM AND THE CAR PERFORMS AS EXPECTED. THIS WOULD APPEAR TO BE SOFTWARE BUG THAT REQUIRES FURTHER INVESTIGATION BY TOYOTA. IN ANY CASE, THIS TYPE OF OCCURRENCE CAUSES AN UNSAFE CONDITION TO OCCUR.

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