2012 Toyota Prius: engine stalls while driving

Filed Feb 9, 2024 · Brakes, Electrical · 120,000 miles · MA

The contact owns a 2012 Toyota Prius. The contact stated that while driving at various speeds, the ABS warning light illuminated and the vehicle skidded while depressing the brake pedal. The contact stated that the hazard lights independently activated and caused the battery to drain, and the vehicle would stall. The vehicle was taken to a dealer where the contact was informed that there was a Customer Satisfaction Program for the failure, but the Customer Satisfaction Program had expired. The manufacturer was notified of the failure but offered no assistance. The vehicle was not repaired. The failure mileage was approximately 120,000.

Filed Feb 2, 2022 · Electrical, Fuel system · CA

Hi, I have a 2012 Toyota Prius with around 120k miles that is completely inoperable. A local Toyota dealership is charging $3400 to replace both computers, but the more I research the more apparent it becomes that this is directly linked with past issues that were never fully resolved during previous recall attempts. The following article describes the exact situation my car is in (https://www.latimes.com/local/california/la-fi-prius-overheat-inverter-defect-20190414-story.html). When you combine that with the previous recalls back in 2014 & 2018, this quickly becomes a pattern. That pattern suggests that past software issues (1 & 2 below) were never fully resolved, and/or already caused premature damage to internal/computer components that then fail regardless. I spoke with the California Bureau of Automotive Repair who referred me to the federal safety agency. The agent I spoke with noted that because the Inverter wasn't actually replaced back in 2014 (Toyota only performed a software update), this part definitely could have been already damaged due to the software issues, which could then cause problems with the computers later on (which is what occurred). --- 1) the federal safety agency CAMPAIGN ID: 14V053000 - In the affected vehicles, the Intelligent Power Module (IPM) inside the inverter module (a component of the hybrid system) contains transistors that may become damaged from high operating temperatures. 2) the federal safety agency CAMPAIGN ID: 18V684000 - Excessive voltage in the Intelligent Power Module (IPM) within the inverter may cause the hybrid system to shut down, causing the vehicle to stall while being driven. --- General: - Computers both failed, not currently available for inspection as they are being replaced - If this computer failure happens again later (while on the road - as it has for other consumer), it's very dangerous as the car essentially shuts down on the spot - Dealer is dismissing this due to the car's age - No previous warning lights or messages

Filed Aug 16, 2021 · CA

I was in freeway going home last night after visiting my mom by point loma area San Diego. I was on 8fwy going east, then I merge to 805fwy South which I always and usually take same route. As I went on ramp of 805 South going on a steep high altitude, my 2012 PriusV stall and I can't accelerate when I was stepping into my gas pedal which I have already pushed it all the way in. So I quickly put emergency lights on and slowly guided my car to the right shoulder. I called AAA which I've been a member for so many years. And believe me it is really a life saver. This safety could have been worst from my experience of been driving for more than 30 years. I got it towed all the way home which was about 7 miles. The traffic was heavy on a Saturday night and I waited for almost 2 hours for my towing. When I got up this late Sunday almost noontime, I went out to check on my car and it is still saying "Check Hybrid System" with all the lights on my module was on. I started it and noticed there was an acceleration so I drove it back to my driveway since the tow truck just drop it off on the curveside close by my residence. It drove ok, and then I started my research online and I recently bought a code reader but not sure if it will work on my hybrid 2012 Prius V. Nothing came out on the reader. I called my buddy which was a certified ASE mechanic but has less experience on hybrid. But he has a more expensive code reader and analyser equipment and tools. I also check the Toyota headquarters and you website about my car on safety recalls. I just had taken this vehicle to the dealer for some sort of worldwide safety recalls on all this typical model. I've also read an additional recall and they just have launched it 01/2019. I've plug in my vin# on all of this sites for a check but nothing is coming out. But their complaint is similar to what's going on to my car. It's "Check Hybrid System" and I believe it's the Inverter issues. Please update me and also the Toyota HQ.

Filed Aug 2, 2019 · Fuel system · 69,500 miles · GA

Tl* the contact owns a 2012 toyota prius. While driving 20 MPH, the vehicle began to stall and a warning indicator signaled the contact to pull the vehicle over. The contact was able to coast the vehicle into a parking space. The vehicle was towed to marietta toyota (750 cobb pkwy s, marietta, ga 30060, (470) 938-8436) where it was diagnosed that the hybrid inverter needed replacement. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was unknown *bf .

Filed Mar 22, 2019 · Electrical, Engine · 91,000 miles · NY

Tl* the contact owns a 2012 toyota prius. While driving at unknown speeds, the vehicle stalled and all the indicators illuminated on the instrument panel. The vehicle was towed to della toyota (32 della dr, plattsburgh, ny 12901), but a diagnosis was not provided. The vehicle was not repaired. The manufacturer was not notified of the failure. The VIN was not included in the federal safety agency campaign number: 18v684000 (hybrid propulsion system). The approximate failure mileage was 91,000.

Filed Dec 20, 2018 · Acceleration · 33,000 miles · VA

In early october I received a recall notice from toyota for a "failsafe driving mode" hybrid system fault that could cause the vehicle to "stall" increasing the possibility of vehicle crash during critical driving conditions. It stated I would be notified when the fix was available. 2 1/2 months later, I've yet to hear from toyota and my dealership states they have not received remedy parts or procedures from toyota. All they could do was give me a phone number at toyota corporate. I called the number and the person had no further information on when a fix for the problem would be available. She stated the original notice stated a time frame of 2-3 months; in fact, it does not contain any time period indication. It is inappropriate for fix for something of this potential magnitude to take so long. I'm concerned that toyota, as they have done with other recall issues, is merely delaying to avoid costs of implementing the fix and endangering all owners further than they already have. The lady stated I could contact the dealership about providing a rental vehicle during the period, something the dealership has denied they will do. I bought my vehicle trusting toyota would stand behind the vehicle and they are failing to do so.

Filed Dec 4, 2018 · Driver assistance, Electrical · 125,000 miles · CA

My prius was just fine then one day it stalled while I was driving in the middle of the free way. I took my vehicle in to elmore toyota in westminster, ca, they found it had a failed inverter and it was still covered under warranty. It took 2 weeks for them to fix it, but when they returned my car, the slip indicator was now on and would not turn off. They claim it was like that prior to the failed inverter, this was false, my car was running perfect. They then wanted to charge me nearly $1k to fix a problem I did not have prior to failed inverter. I feel the situation was connected but they refuse to cover it.

Filed Jul 18, 2016 · Engine · 37,765 miles · TX

Tl* the contact owns a 2012 toyota prius. The contact stated that while driving at 65 MPH, the vehicle stalled as the master warning light illuminated. The vehicle was towed to the dealer. The technician was unable to diagnose the failure and stated that the only code found was related to low fuel although the vehicle had a full tank of fuel. The manufacturer was made aware of the failure and made the contact was made aware that the vehicle was not included in the federal safety agency campaign number: 14v053000 (electrical system , hybrid propulsion system). The vehicle was not repaired. The failure mileage was 37,795.

Filed Feb 26, 2016 · Airbags, Electrical · 45,000 miles · CA · crash · 1 injury

Tl* the contact owned a 2012 toyota prius. While driving 60 MPH, the engine stalled. Various warning lights illuminated and a beeping noise was present. The contact's vehicle coasted to a stop and was rear ended by another vehicle. A police report was filed. The air bags did not deploy. The contact sustained injuries to the forearm that required medical attention. The vehicle was not diagnosed nor repaired. The VIN was not included in the federal safety agency campaign number: 14v053000 (electrical system, hybrid propulsion system). The manufacturer was notified of the failure. The vehicle was destroyed and towed. The failure mileage was approximately 45,000.......updated 04/01/16 *bf *js consumer stated there have been previous stalls which there have been recalls. Updated 6/7/18

Filed Feb 10, 2015 · Electrical · 53,000 miles · UT

Tl*the contact owns a 2012 toyota prius. The contact stated while driving approximately 25 MPH, the vehicle stalled and all of the warning lights illuminated on the instrument panel. The vehicle restarted but was not able to move forward or reverse. The vehicle was not diagnosed or repaired. The manufacturer was notified of the issue. The contact was aware of the federal safety agency campaign number: 14v053000 (electrical system, hybrid propulsion system) however, the VIN was not included. The approximate failure mileage was 53,000.

Filed Feb 2, 2015 · Transmission · 25,300 miles · MD

After starting the car, it would not go into gear. The dashboard was lit but I could not get the car moving. After fiddling around for sometime, it finally clicked and I was able to go into reverse. The car functioned fine until later that day I made a drop-off stop and the same thing happened. The dash board was lit but I could not get the car moving. I was stalled almost in the middle of the road. The next day I took it to the local dealership and they did the most extensive computer generated diagnosis on the car but could find no indicators of the problem. I reported this to toyota headquarters who said they'd investigate but there is no internal system for reporting back to me on their findings. I did research on the consumer reports website and saw others have reported similar problems. My fear is getting 'stuck' in unwanted times and undesired locations. The fact that the company doesn't recognize the problem is troubling. I plan to get a new car rather than worry about this one.