Last post on Sep 03, 2013 at 5:22 PM
You are in the Toyota Prius
What is this discussion about?
Toyota Prius, Brakes, Hatchback, Sedan
Go to NHTSA to file a safety complaint.
Or call Monday-Friday (8 am to 8 pm ET) (888) 327-4236 TTY: (800)424-9153
#69 of 370 Prius Brake Issues
Sep 20, 2009 (2:46 pm)
Well, it happened to me yesterday (September 19,2009). I was in love with my 2008 Prius (despite having to spend a couple of hours to figure out how to operate the danged thing). I was pulling out of a parking lot, moving very slowly ,when I saw a car turn the corner and drive down the street which I was entering. I immediately applied the brakes HARD and to my dismay, NOTHING HAPPENED. I consequently rolled into the the approaching car (and SUV, wouldn't you know) and did thousands of dollars of damage to my beloved Prius. The cops of course issued me a ticket for failing to yield the right of way (correct) and said I must have hit the gas pedal instead of the brake (not correct). I do not feel safe in this vehicle. It is a horrible sensation to apply maximum brake force to the pedal and feel no response. I think it is a telling event that Toyota is changing their brake system in newer productions.
#70 of 370 Re: Prius Brake Issues [pjackie]
Sep 21, 2009 (5:18 am)
Be sure to file a report with the National Highway Traffic Safety Administration.
They have more clout than anyone individual, and as the number of reported problems goes up they will have more incentive and clout to work on getting the problem resolved.
Note that the 2010 Prius now has a "black box" capability so that Toyota can find out the exact circumstances when the brakes failed so they can hopefully resolve the problems and make a safe car. Of course, Toyota totally denies that the brakes ever fail.
BTW - I told the magistrate that the brakes failed, and my fine for my ticket was waived.
#71 of 370 Re: Prius Brake Issues [pjackie]
Sep 30, 2009 (10:49 am)
Check the floormat on the driver's side and make sure it isn't bunched up thusly not allowing the brake pedal to fully depress, or the throttle ( gas pedal ) to fully release.
There is a recall in progress for floormats. Priui from MY '04 - '09, I believe.
#72 of 370 Re: Prius Brake Issues [whitey9]
Sep 30, 2009 (11:57 am)
There is a recall on the floor mats? That being true or not. You are absolutely ridiculous for thinking that the problem originated from my floor mat being bunched up.That would have been painfully obvious if that were the case.
My floor mat has never budged from the position it was in when I bought the vehicle. The hooks at the back of the mat (nearest the seat) work very well as intended to prevent that from happening.
I'm not sure if you people that right with alternate ideas for the problem are sincere, or work for Toyota. Because every idea seems to be misleading and in an attempt to redirect the consumer of the true and costly imperfection in the make of car.
If you are truly attempting to help in a legitimate way... thank you for your input.
#73 of 370 Floormats
Sep 30, 2009 (1:09 pm)
That's what the Lexus' occupants thot when they made an emergency call on their "On-Star" to see what could be done with their "runaway" car speeding down the highway at 120+mph.
They said the brakes did not work, and they were unable to stop the car.
Only 1 person died in the resulting crash, a bystander.
#74 of 370 Re: Prius Brake Issues [jacquesc]
Sep 30, 2009 (2:24 pm)
Without being overly coy, the purpose of bumpers on cars is when something happens that is not expected, or that does not normally occur.
What I am trying to say is not everything that happens, necessarily happens on purpose.
#75 of 370 Prius slides on wet roads
Oct 02, 2009 (6:41 am)
My 2008 Prius slides when I brake on wet roads. It's scary. Has anyone experienced this? Is it the brakes or the tires? I only have 21,000 miles on the car.
#76 of 370 Re: Prius slides on wet roads [gghol]
Oct 02, 2009 (8:33 am)
Slides? Or drifts ( sideways )? Steering sharply while braking?
Tire pressures OKay? Tires not worn?
Too much speed? Braking too late?
Any function/malfunction lights illuminating on the dashboard?
#77 of 370 Re: Prius slides on wet roads [gghol]
Oct 04, 2009 (8:38 am)
I have had this happen on more than one occassion on my 2007 Prius. I had to brake hard when a vehicle cut in front of me to make an unexpected turn, but it felt like the brakes never engaged. I hit the vehicle that cut me off, which caused no damage to his pickup truck, but about two thousand dollars worth to my Prius. I have contacted my dealer, the main Toyota company, and have spoken with a rep. Basically they sy that it needs to be documented by my dealer in a road test, but trying to simulate this is nearly impossible. I have new tires on the car, and it happened to me again about a week ago. I feel its a combination of ABS sensitivity, and the lack of weight of the car which causes this problem. . . but I can't prove anything at this point.
#78 of 370 Re: Prius slides on wet roads [vspin1]
Nov 26, 2009 (10:44 am)
Success!!! Got it to happen without causing an accident. After reading all of these messages I decided to try this with our 2007 Prius. I've never put the car through its paces until I heard news of a recall. I didn't need wet conditions like reported on this site, just going down a hill over a speed bump at about 22-24 mph I slammed the brake and the car did not stop normally on first try. I'll need to videotape this to figure out how long before the brakes acted normally, but I experienced about 1 to 2 seconds of weak braking before I felt normal brake action with the car finally coming to a halt.
I was also able to replicate in an empy parking lot in a spirited turn at about 20 mph. Every panic (stomp the brake like your life depends on it) brake application results in extremely weak braking action. When I hit the brake less violently the car stops normally under control also.
I did not feel the ABS pulse in any of these tests until the last few milliseconds before the final stop. The anti-skid light came on in many of these tests so I suspect that the system is overriding my panic stop. In my mind this is clearly caused by a system (software & hardware) malfunction, or design flaw, not mats, hitting the wrong pedal etc.
While my tests were certainly not standard I you should know that I have experience autocrossing with the Porsche Club of America and know how to test a car and see how it should react to driver inputs. In my mind there is no question that the Gen II Prius could be deadly in a panic stop. While I would be comfortable in my ability to handle a panic stop in this car I would gauge it as being dangerous for general public use until Toyota reprograms or redesigns the braking systems.
My next step is to contact Toyota and find out if they have a solution. Otherwise I will have to video tape my tests as evidence should it be needed.