2011 TOYOTA PRIUS Complaints

The contact owns a 2011 Toyota Prius. The contact stated while driving at an undisclosed speed on dark roads, the contact became aware that the headlights were extremely dim. The illumination was inadequate while driving. There were no warning lights illuminated. The contact became aware of a six-year Extended Warranty letter from the manufacturer. The contact stated that the harness needed to be replaced. The local dealer was not contacted. The manufacturer was not contacted. The failure mileage was approximately 129,000.

The brake system is constantly failing/malfunctioning.It is available for inspection upon request. There has been several incidents where other vehicles have nearly been rear ended. I took my 2011 Toyota Prius (hybrid) to Toyota approximately 8 months ago. They/Toyota did confirm that the problem was indeed the brake booster. The warning lamps did come on soon as the brakes started malfunctioning.

I have a 2011 Toyota Prius with 85K miles, as I was driving on the highway the abs light, brake light, and TSV light came on and then brakes were not working like normal. Had to pump the brakes very rapidly and steer off to the right side of the highway and use the emergency brake to come to a complete stop. I called the Toyota dealer and they said its the brake accumulator fault and they will not cover the fix because it was out of the 10year/150K mile warranty per SB. Towed my car to an independent service center and they confirmed it was the brake accumulator C1391 code. cost me $3000 to fix.

I have had this car since 2021 and have had to replace both the high and low beams multiple times a year. Each time they go out at the same time with no warning. This is deadly as I have. been on the freeway at night and almost crashed. I counted 4 times just in 2023 this has happened to me. This is more then any other car ive owned, along with any car my siblings and parents have owned. This is deadly and needs to be recalled ASAP

[XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I’ve been told by our machanic that our Prius’ ABS braking system is malfunctioning.

Brake ABS system dashboard lights warning system always always going off for the 9 years I've owned the car. Had the ABS system replaced and still the dashboard lights going off and the system not functioning properly.

The contact owns a 2011 Toyota Prius. The contact stated while driving 40 MPH, he heard an abnormal sound coming from the front-end of the vehicle, and the brake pedal required pumping to slow the vehicle. The ABS and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic, who determined that there was an accumulator pressure leak. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Action Number: DP19004 (Service Brakes, Hydraulic). The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 150,000.

I have been experiencing intermittent brake issues with this car now for the last 50k miles. Sometimes the warning lights on the dash will activate, sometimes not when I am experiencing issues. the power assist is the problem. - it activates and then deactivates without warning instantaneously, while applying brakes or not. Sometimes when I am applying the brakes without the brake assist working, it will instantaneously start working without warning, causing my car to almost lock up its brakes. This is very dangerous, especially in traffic. When I apply my brakes at any given time, I never know if I am going to have power assist or not. I have replaced the brake master cylinder once already with a mobile mechanic and the problem went away for about one year but now it is happening again so this seems to be a reoccurring issue with this car. I have decided to just stop driving the car and bought a different one. I am a delivery courier and I cannot be driving a vehicle unsafe as this. I have reported the issue to my local dealership, but they are refusing to troubleshoot without charging me and it’s telling me there are no recalls.

The ABS, anti-skid, and brake lights came on. Immediately, the brakes were less than full stopping power, and it was obvious it was not safe to drive the car any further. We had noticed that a pump was being activated when the brakes were being used, but no service codes were being displayed when checked. We later found out there was a recall on the Brake Booster and Accumulator, but it was only a limited recall, no notice was sent to us, and no repair was authorized by Toyota unless the brakes completely failed. Once the dash warning lights came on, the C1391 service code appeared when checked, "Abnormal Leak of ACC Pressure". This issue is a safety matter because your brakes fail instantaneously at any moment while driving.