2009 Toyota Prius engine problems

Filed Apr 2, 2025 · Driver assistance, Electrical · NJ

Breaking system failure do to ASB Actuator, breaks are locking and vehicle is engine braking.

Filed Oct 9, 2024 · Brakes, Driver assistance · WA

The engine light went on while driving on the highway. We immediately pulled over and had the vehicle towed to the nearest dealership. The dealership informed us that both the Brake Actuator (Toyota part TO44500-47141) and water pump (Toyota par TOG9020-47031) had failed. The car was no longer save to drive.

Filed Jun 15, 2021 · Electrical, Engine · VA

My 2009 Toyota Prius abruptly lost power while driving. The electrical system turned off and the vehicle stalled while going 50 mph on a 2-lane parkway. While I was able to put my hazard lights on and steer the vehicle, I had no other control and was at a high risk of a crash. There's no emergency lane and few areas wide enough to pull over on the parkway. I was forced to coast the vehicle until I could pull off the parkway onto a patch of grass off the busy road. There were no warnings, messages, or other symptoms of the problems prior to failure. I had plenty of gasoline in the tank, so it wasn't due to a lack of fuel. The car would not start after pulling over and I had to get towed. After researching the issue, it sounds very similar to the safety recall involving certain 2013-2015 Model Year Prius and 2014 – 2017 Model Year Prius v in the United States, the press release for which was published on June 24 2020: https://tinyurl.com/4mrnz9nr Furthermore, the Los Angeles Times wrote an article on April 23 2018 about a similar issue, referring to a recall in 2014 which was intended to fix overheating problems in the 2010-204 Prius inverter. Those recall documents suggest that Toyota has been tracking this issue with the inverter since 2011. https://tinyurl.com/afwvt2sc A sudden power loss is generally considered a serious safety defect. I could have gotten into a serious car accident today and injured myself or other drivers. The 2009 Toyota Prius model had a recall issued on recall date: 11/14/2012 under the federal safety agency Campaign ID: 12V536000, referring to a "short circuit between coil wires and a possible open fuse, creating a stall-like condition of the hybrid system while the vehicle is being driven. This may increase the risk of a vehicle crash." At this time, I don't believe Toyota has conducted due diligence into ensuring the safety of the 2009 Toyota Prius model. The vehicle has not yet been inspected by the manufacturer or insurance reps.

Filed Oct 19, 2020 · Electrical, Engine · TX

We have a 2009 prius which stalled on the freeway as my husband was driving it yesterday (10/16/2020). Luckily, even though it was a busy austin freeway, my husband was able to maneuver it to the shoulder and call aaa to tow the car to the service station. On inspection, we were told that the reason for the stall was the failure of the inverter drive pump along with the 12v battery on board. This car was part of the recall for the inverter drive pump and that was replaced by an authorized toyota service center in 2013 for a similar issue. On the oct 16th, 2020, there were no warning lights - no engine check light and not even the 'maintenance required' light - the car turned on just fine, my husband was able to drive it 5 miles to the freeway, get on the freeway at 60 MPH and drive a few miles on it before losing all power in the car. The service tech informs us that the inverter pump can break down due to just regular driving - but there was zero indication that this unit, which apparently is crucial to the car while being driven, was in any danger of imminent failure. I do not know if this part is examined or serviced as part of regular maintenance, but no warnings were raised when this car was last serviced, at an authorized toyota service station in dec of 2019.

Filed Dec 31, 2018 · Engine · 151,759 miles · FL

Tl* the contact owns a 2009 toyota prius. While driving at unknown speeds, the temperature gauge increased to high and coolant needed to be added to the vehicle. All of the indicators on the instrument panel were illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and did not assist. The failure mileage was 151,759.

Filed Dec 12, 2018 · Engine · 101,645 miles · TX

My car recently has a check engine light and the obdii scanner show the fault code p1121 which is a failed three-way coolant control valve. Toyota has issued a technical service bulletin (tsb) on this problem: eg001-08 m.I.l. It should be a recall because it's a common problem for 2nd generation toyota prius.

Filed Oct 30, 2018 · Electrical, Engine · 88,604 miles · CA

Complete shutdown of prius automobile with no warning while in motion on a city street. Rolled to a stop in safe area. Nothing worked except emergency blinkers. No instrumentation or warning lights appeared. The car was locked in fwd park and could not be towed by flatbed tow truck as there is no override. Lift tow truck was used to get to dealer. Diagnosed as melted hybrid invertor pump. Dealer replaced pump and fuse for a $641.47 cost to me. If this had happened on a highway/freeway it would have been a disaster. The complete loss of power without warning at freeway speed could very easily ended up as a multiple car pile up. Just the thought of crossing multiple lanes in traffic with no power, just rolling, makes me think it's time to get rid of this car.

Filed Sep 21, 2018 · Brakes, Electrical · 115,000 miles · CA · fire

Tl* the contact owns a 2009 toyota prius. The contact stated that a warning indicator flashed on the instrument panel regarding the brake system when the brake pedal was depressed. The contact also noticed smoke coming from the exhaust system. The contact inspected the vehicle and found a leak underneath the vehicle. The vehicle was taken to salinas toyota (700 auto center cir, salinas, ca 93907, (831) 444-0700) where it was diagnosed that there was an internal brake fluid leak; however, the vehicle was excluded from the manufacturer warranty campaign. The manufacturer indicated that the obt2 sensor did not show the specific diagnostic trouble code (dtc) to receive the brake actuator replacement covered by the campaign. The dealer and the manufacturer refused to honor the warranty campaign for dtc number: c1240. The approximate failure mileage was 115,000. *tt consumer stated smoke started coming under the hood. Noticed fluid dripping from engine onto the exhaust pipe. Dealer determined it was not an oil leak but empty brake reservoir. Updated 11/27/18

Filed Jan 26, 2018 · Engine · 80,000 miles · CA

I keep getting the code p 1121. I have replaced my engine coolant valve sensor unit three times and every single time after driving for a week the chickens and light comes on and it throws the code again. I am currently at the point where there is either no heat or it takes at least half hour or more to blow hot air. If it blows hot air it only can be on a low fan setting. I have used two different manufacturers. But unfortunately every time I replaced it same problem occurs. I have reported this in the past and there was no response. But it is occurred multiple times since. And I know there is a recall on vehicle years prior to mine.

Filed Jan 23, 2018 · Engine · 100,700 miles · CO

My 2009 toyota prius has 100,700 miles on it. When I took it in for it's last oil change I was informed that only a little over a quart of oil drained from the engine. I have religiously changed the oil every 3,000 miles. After replacing the engine oil it still looked dirty. The engine is burning oil. I understand that this is a common issue caused by a piston design flaw and does not have a cheap solution other than adding oil at each gas fill up. I am concerned that the engine may stop working while driving, particularly if traveling on a long trip at highway speeds. I do not feel safe driving this vehicle on a long trip.