Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
143,878 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Toyota Prius brakes problems

brakes problem

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2004 Toyota Prius Owner Comments

problem #6

Mar 152015


  • 106,000 miles


The contact owns a 2004 Toyota pruis. The contact stated that the brake warning light on the instrument panel intermittently illuminated. This was a recurring failure. The vehicle was taken to an independent mechanic for diagnostic testing. The technician was unable to determine the failure. The vehicle was not repaired. The manufacturer was not notified. The approximate failure mileage was 106,000.

- Arlington, VA, USA

problem #5

Jun 232015


  • 205,000 miles
The contact owned a 2004 Toyota Prius. While driving approximately 15 mph and while attempting to stop the vehicle by depressing the brake pedal, the brakes malfunctioned and the vehicle crashed into the rear of an SUV. The contact sustained multiple toe injuries on the right foot, including one fractured toe. Medical attention was required. A police report was filed. The vehicle was destroyed. The cause of the failure was not determined. The manufacturer was not notified of the failure. The failure mileage was 205,000.

- Durango, CO, USA

problem #4

Jul 032015


  • 268,000 miles
As I was going down a hill the ABS vsc brake light came on and the brakes failed. The pedal became mush and I lost power braking. This caused me to almost hit the car in front of me. I swerved to the side of the road and pulled off the shoulder just missing the guard rail. I have found out that Toyota knows about this faulty problem and now they dealership wants to charge 3,000 to fix it.

- Allentown, PA, USA

problem #3

Nov 112014


  • 93,268 miles


Brake light and ABS light still on after release the brake pedal.

- Macon, GA, USA

problem #2

May 302013

Prius 4-cyl

  • 90,000 miles
I was traveling on I95 when all the brake warning lights came on (ABS, brake, etc.). I tried to slow down the car, but the brakes didn't seem to work. Finally, the regen system kicked in, and slowed the car. When I jammed my foot hard on the brake pedal, the car stopped with a jerk. This is not the first time this has happened. The first time it happened (when all the lights came on), I brought the car to the dealer (kendall Toyota), they reset and recalibrated the computers in the car, and everything seemed ok. About 9 months later, the same thing happened. This time, the ABS computer had a hard failure. They replaced it with a low mileage used part, and everything seemed fine for about 3 months. Then it happened again last Thursday. Brought it into kendall Toyota on Thursday evening, and on Friday they told me the I needed a new ABS computer. Turns out Toyota knows about this problem and has redesigned the ABS computer, but never sent out any notice to their customers. This is why the used part didn't last long. This a very dangerous situation and I could have easily been in a serious accident if I had not experienced faulty braking in the past (see below). A new ABS computer plus installation from Toyota cost approximately $3000. The symptoms I was having when I reported complaint # 10292409 were identical to those above, except that no indicator lights came on. They car did not want to stop (and even seemed to "run away") until I jammed my foot on the brake. Searching the internet, this seems to be a common problem with Prius.

- Miami Beach, FL, USA

problem #1

Dec 312012


  • 101,000 miles
The contact owns a 2004 Toyota Prius. The contact stated that while driving 20 mph, he depressed the brakes to slow the vehicle but the vehicle took an extended amount of time to slow down. The vehicle was not taken to a dealer or mechanic for inspection. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 100,000. The VIN was unavailable.

- Oakland, CA, USA

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