Five problems related to engine shut off without warning have been reported for the 2010 Toyota Prius. The most recently reported issues are listed below.
Driving with cruse control set at 72 mph, driving on 4 lane interstate. Master warning light came on along with the following warnings "check hybrid system" & "check pcs system", all dash lights lit up. Engine stalled unexpectedly and resulted in no power when pushing gas pedal. Steering was not compromised. Was able to cross 3 lanes on the interstate to the shoulder with no power and the car decelerating rapidly, again with no prior warning of any issues. Turned car off and restarted, was able to drive approx. 25 feet before the engine shut off unexpectedly again leading to a complete loss of power. Breaking and steering were affected after restarting the car.
While the vehicle was in motion, the engine started shaking, the steering and brakes locked up and the engine ceased up as the car shut off. Got error code p3190 for poor engine power, and then a day later everything was normal. This is the 2nd time this has happened while driving, the first time was in a 2002 Prius.
Check hybrid system car shuts off and can not restart, tried system reset per manual but would not clear hybrid. Towed to dealer, dtc code p3004-800, tech said this was the only code, had recall eoe reflash 04-14-2014 ipm extended 15 years. Car was in motion per wife. (it had been raining) the dtc p3004-800 power cable malfunction.
About a mile after having entered the freeway as I was merging towards the carpool lane the car shut off in the number three lane. The dashboard displayed the message, "check hybrid system", and would not respond. My speed was approximately 65 mph when this occurred. I immediately pressed on the break but the car was not slowing down as it normally does. When I finally got over to the number 1 lane, I entered the emergency lane but was still having trouble coming to a stop. I brushed up against the freeway wall in order to come to a complete stop. After switching the car off and attempting to restart it, I would get no respond and all the dashboard indicators would remain on with the "check hybrid system" displayed. This incident was terrifying as I was driving with my two year old daughter and two other occupants. The car should have displayed a warning and not simply stalled out. If this incident had taken place a few minutes later, I would have been in the hov lane and could have resulted in a devastating accident.
I have a 2010 Prius VIN:jtdkn3du3ao216287 with 37,000 miles. The car experiences random losses of power during which the engine shuts down and does not activate no matter how hard I pump the accellerator. Once I turn off and push again the start button, the engine starts up without any problem and I can continue on my way. I have experienced this problem 5 times since September 2012. I have taken the car in to the dealer (caldwell Toyota, NJ) where it was examined and they told me the onboard computer did not record any malfunction. I am getting worried since some of the power losses happened when I was on highways at speeds over 60mph and I had to coast to a stop in high traffic areas. I would like to know whether other Prius owners have reported similar problems and whether you have suggestions on how to proceed thank you for your attention, stefano crema.