2008 Toyota Prius Brake Problems

Which parts fail

• Antilock/traction control/electronic limited slip › Control unit/module
  14
• Antilock/traction control/electronic limited slip
  3
• Pedals and linkages
  1
• Antilock
  1

Components named in complaints (service brakes, ABS, rotors and pads, parking brake).

Mileage when the problem started

• Under 25k
  12439%
• 25k–50k
  6420%
• 50k–75k
  3210%
• 75k–100k
  113%
• 100k–150k
  4916%
• 150k+
  3511%

Owner reports

Selected complaints filed with NHTSA by 2008 Toyota Prius owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2008 Toyota Prius. The contact stated that while driving approximately 15 MPH, the brakes failed when pressed causing the vehicle to crash into the rear end of a second vehicle. During the crash, the air bags did not deploy and the rear driver-side seat belt had sprung outward, although no rear seat passenger was present. The second vehicle's rear driver's side passenger was later treated for an undisclosed injury. A police report was taken at the scene and the vehicle was towed away. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 240,000.

The contact stated owns a 2008 Toyota Prius. The contact stated while driving approximately 40 MPH, the ABS system locked up and the brake pedal was firm and difficult to depress, causing the contact to lose control of the vehicle. The contact activated the parking brakes to aid in stopping the vehicle. The vehicle stopped and was restarted and drove normal for several miles before the failure recurred. The vehicle was driven to the dealer and the contact was informed that the failure was a known issue. The contact was informed that since the part was defective the dealer would offer a discount towards the repair. The manufacturer was not made aware of the failure. The approximate failure mileage was 60,000.

The contact owns a 2008 Toyota Prius. The contact stated while driving at approximately 65 MPH, the messages for the parking brake, tire pressure monitoring system, ABS, and VSC illuminated while driving. The vehicle was later driven to the local dealer who diagnosed that the brake actuator and brake pump were faulty and needed to be replaced. The failure was not yet repaired. The manufacturer was notified of the failure, but no assistance was provided. The contact was informed of the Manufacturer's Extended Warranty Coverage for the failure however, the warranty had expired. The failure mileage was 129,674.

To whom it my concern, I'm the original owner of a 2008 Toyota Prius. The car has 93,000 miles on it. I encountered a braking problem one day after starting the car and backing up. The brakes felt spongy and car started to roll backwards with the brakes applied. Had to push harder for the car to stop. The VSC, ABS and brake lights were on, on the dash with a tone I could hear indicating something is wrong. I shut the car down and restarted and problem still existed. I called the dealer and did a little research online and found out the brake actuator had malfunctioned and will need to be replaced. Dealer said there was a program offering an extended warranty, but that has expired in 2018. I never received any letter from dealer or Toyota themselves indicating there was a problem. …

I recently took my vehicle to the dealership because all the hazard lights on the dash came on. They diagnosed it as an issue with the inverter water pump and suggested that the engine was overheating, which was causing the hazard light to appear on the dashboard. So I had them replace that part and everything was fine. A week later, I went to drive to work and my entire dashboard was out. My radio, clock, blinkers, and brakes worked, but I could not see the speedometer, gas gauge, odometer or any other dashboard features. When I tried to restart the car, it wouldn't turn off. I tried several times and even got my husband to try. When we couldn't turn it off, I drove blindly straight to the dealership. They diagnosed the issue as being a problem with the combination meter. …

My name is [redacted] ,i am filing this report on behalf of My daughter [redacted] the driver of the vehicle that involved with the unintended acceleration on the 2009 Toyota Prius .On a good clear morning on [redacted] . My daughter drove the 2009 Toyota Prius to work- when she enter to the parking lot at the speed round 5 mile/hour . Just when she was making a left turn on to the entrance gate with her left foot on the brake pedal . On a sudden the vehicle RPM unintended rev up too high and the vehicle had an unintended accelerating to move forward aggressively causing lose control of the steering . Also she could not brake even though her left foot was on the brake pedal and pressing hard to try to stop the vehicle . . This dangerous incident causing her Prius to bumped into the electrical gate panel control box . …

2008 Toyota Prius gen2 with 139k miles. ABS, Brake, parking brake, and Traction Control lights all illuminated while driving the other day. Potential is losing all electronically assisted braking function in the car. Problem has been confirmed by local independent service center. Independent service center pulled codes: C1256 Accumulator low pressure C1378 Capacitor Communication Malfunction C1391 Abnormal leak of ACC pressure all consistent with ABS accumulator failure. Recommending ABS modulator assembly replacement at $2742.66 Toyota had a warranty enhancement program that covered this component: Warranty Enhancement Program - ZG1 2006-2007 Model Year Highlander Hybrid & 2004-2009 Model Year Prius Vehicles Extension of Warranty Coverage for Brake Actuator Assembly This Warranty Enhancement Program provides enhanced coverage to the vehicle's "New Vehicle Limited Warranty" as it …

The error lights related to the ABS, VSC braking system can suddenly come on, the antilock brakes stop working, and breaking power is greatly diminished. This occurs without warning and when it does, the brakes do not work safely and it is more difficult to bring the car to a stop. I have taken the car in to repair shops who have confirmed the issue. This malfunction produces error code C1256 and multiple mechanics have confirmed it is related to a faulty ABS Actuator Assembly and recommend immediate replacement of the unit. This is a common and known issue with these cars. I have been quoted a range of $2,100+tax to $2950+tax to perform the repair using a brand new part from Toyota.

The ABS Actuator failed. It can be inspected. This is dangerous as this has the possibility of causing a brake failure. A retired mechanic plugged in his scan tool and determined that the ABS actuator is leaking. In addition, I can tell audibly that this is the case because the car's pump is starting up every 10-15 seconds trying to fill the air reservoir but is unable to due to the leak. Neither the vehicle nor the component has been inspected by the manufacturer, police, insurance representatives, or others. The brake and ABS lights are lit up on the dashboard. The car's pump is starting up every 10-15 seconds trying to fill the air reservoir but is unable to due to the leak.

There are no lights on in the dashboard. Everything seem normal and working fine. I was trying to park going like 5 mph, I had to stop because some people were crossing and the breaks failed, car kept going for like 5 seconds, there was a beep and a few lights turned on (break, abs, !). Finally the car came to a sudden and abrupt stop, after that the lights turned back off. It was horrible, lucky I didn't hurt anyone. I drove back home immediately very slow. It happened 3 more times, specially when going in reverse and after a turn. Mechanic said there are no codes and he wasn't able to figure it out. This is a huge safety problem. A recall definitely needs to be done.

Brake complaints in other Prius years