2004 Toyota Prius Service Brakes, Hydraulic Problems
- 24
- Owner complaint records in our dataset
Records are owner complaints, not a measured failure rate.
Owner complaint recordsComplaint records reflect reports in our dataset and do not measure how frequently the problem occurs across all vehicles.
Among these 24 stored complaint records:
- 4 indicate a crash
- 0 indicate injury
- 0 indicate fire
What owners report
- brake pedal · 7 records
Mileage in stored records
| Band | Records |
|---|---|
| 60–100k mi | 7 |
| 1–30k mi | 6 |
| 30–60k mi | 5 |
| 150–400k mi | 1 |
| 100–150k mi | 1 |
Complaint records
Owner-submitted complaint content, presented as stored.
Service Brakes, Hydraulic · Visibility
2004 & 2010 toyota prius. Consumer writes in regards to rear view visibility and braking issues in both vehicles. *smd
ODI 10541671
Engine · Service Brakes, Hydraulic
My 24 yr. Old child was driving out of a driveway at 5 mph when the car stopped and all warning lights including brakes and engine and triangle went on. It would not restart. It would not take a battery jump. Had it towed to toyota service and they discovered code p0335 present and verified a faulty crankshaft position sensor, replaced it, and cleaned throttle body. The car works now. Cost for diagnosis and service…
ODI 10482058
Service Brakes, Hydraulic
Tl* the contact owns a 2004 toyota prius. The contact stated that the brakes malfunctioned and the contact crashed into another vehicle. No one was injured during the crash and the air bags did not deploy. The manufacturer was contacted to have the vehicle inspected for the faulty brakes. The manufacturer did not inspect the vehicle and no repairs were performed. The failure mileage was 90,000.
Crash reported
ODI 10452589
Service Brakes, Hydraulic
Tl* the contact owns a 2004 toyota prius. The contact started the vehicle and the abs warning light began to illuminate. The brake pedal traveled to the floor upon application. The contact proceeded to drive, although the vehicle would not stop unless the brake pedal was applied repeatedly. The vehicle was taken to an authorized dealer where they replaced the abs actuator. Two weeks after the repair was performed,…
ODI 10414995
Service Brakes, Hydraulic
Tl* the contact owns a 2004 toyota prius. While attempting to stop the vehicle, the brakes would not engage and the contact crashed into a vehicle ahead of her. The vehicle sustained extensive front end damage but she was able to drive the vehicle to her residence. The vehicle was not diagnosed and she had not contacted the dealer or manufacturer for repairs. The failure and current mileages were 32,000.
Crash reported
ODI 10336622
Service Brakes, Hydraulic
My 2004 prius feels like the brakes lose control when i'm going over a bump. I apply the brake, it catches, then releases momentarily, then grabs. The time of the release feels too long to be safe, and i am never really sure that it will grab eventually. This problem has continued since i bought it, and toyota assures me it's not a problem. *tr
ODI 10331144
Service Brakes, Hydraulic
I have a 2004 toyota prius. I have noticed that when going over a bumpy patch of road, if i brake, sometimes the brake appears to not catch for a brief time (1 second or so). At first i thought it was my imagination, but over the years it has happened often enough that i am convinced the sensation is real. I have recently read about others describing the same experience. I cannot give an approximate date or mileage;…
ODI 10331601
Service Brakes, Hydraulic
Recently, i performed a routine flush of the brake fluid on my toyota prius. When i started the prius after completing the brake fluid flush, there were warning lights showing on the dashboard for the brakes, the traction control system, and the anti-lock brake system. This didn't surprise me that the car detected an abnormality during the brake bleeding operation. What did surprise me is that the prius computer…
ODI 10322925
Service Brakes, Hydraulic
I have a 2004 toyota prius. I find that when applying the brakes on a road surface with bumps, there appears to be a lag before the brakes engage. This is especially noticeable when driving down a hill. The brakes do not hesitate to engage on level road surfaces. I always attributed this to the abs system engaging, but after the recent recall of the 2010 prius for a similar complaint, i felt it was important to at…
ODI 10311396
Service Brakes, Hydraulic
On the 2004 toyota prius when driving from a stop across a rough road or pot holes the anti-lock brakes/anti-skid system engages and makes the car skid on wet surfaces. In winter on icy roads the (proper - non-pumping) application of the brakes on moderately icy or wet road surfaces causes the brakes to lock up and the car skids uncontrollably. The later occurred today while the second issue has been going on since…
ODI 10306732
Service Brakes, Hydraulic
Problem with anti-lock brakes not working when hitting rough surfaces such as potholes. *tr
ODI 10306478
Service Brakes, Hydraulic
Tl*the contact owns 2004 toyota prius. While driving downhill out of her driveway, she depressed the brake pedal and the brakes would not engage. The vehicle proceeded to crash into a nearby tree at unknown speeds and continued to push the tree further into the street. The contact's foot remained on the brake pedal; however, the vehicle would not stop. There were no injuries. The police arrived and a report was…
Crash reported
ODI 10307860
Service Brakes, Hydraulic
I have a 2004 prius which i bought used about a year ago and when i read the line that i cut and pasted right from your news release, i couldn't believe it because it describes exactly what has happened to me numerous times. "allegations of momentary loss of braking capability while traveling over an uneven road surface, pothole or bump," but this problem which has happened repeatedly (usually on the same pothole on…
ODI 10305943
Engine And Engine Cooling · Fan · Power Window Devices And Controls · Service Brakes, Hydraulic · Switch · Vehicle Speed Control
About 40% of the time, my toyota prius doesn't want to stop or slow down when the brakes are applied. Under these conditions, i have to apply the brakes hard and then the car will slow down. It feels like the car wants to "run away" when the brakes are applied. It exhibits this behavior in many circumstances: stopping at a stop light, slowing down on an expressway, or slowing down on a city street. *tr updated…
ODI 10292409
Service Brakes, Hydraulic
I was driving my 2004 toyota prius with my wife and infant during the evening last summer, and out of the blue three red indicator lights came on as well as a buzzer, and my brakes stopped working. The pedal was able to be pushed all the way down to the floor. Pumping did nothing. Since it was late there were no other cars around, so we were able to coast to a stop using the emergency brake. I got out of the car and…
ODI 10329918
Service Brakes, Hydraulic
Twice while driving my 2004 toyota prius, i encountered a small slick patch on the roadway surface, felt my front tires slip momentarily, then grab, the warning lights came on lighting up the dash. It said i shouldn't drive it. I took the car to the dealer. The first time they said it was the small battery and replaced it for the third time. The second time, they said it was the computer and replaced that. *tr
ODI 10310628
Service Brakes, Hydraulic
Brake failure, this happened to me today 8/5/08. I purchased this 2004 prius 2 weeks ago(90,000 miles), and i've only had problems up till now. I was driving at about 25 mph, when all of the sudden the abs warning light went off, and the brake light turned on(and a buzzer was heard). I had to depress the break pedal hard in order to get the car to break. It felt just like when a conventional car looses its breaks.…
ODI 10237067
Electrical · Service Brakes, Hydraulic
While normal conditions i have experienced a major brake malfunction, both the abs and the brake lights come on. The vehicle barely has brakes, this has happened multiple times since i have bought the vehicle 2 years ago. I have taken my vehicle 6 times to have to it fixed, and they have never been able to fix it. Brakes repeatedly fail on a regular bases. They have replaced the brake accumulator, brake computer,…
ODI 10255214
Service Brakes, Hydraulic · Vehicle Speed Control
Dt*: the contact stated upon entering a highway at 60 mph, the vehicle accelerated rapidly. Brake pressure was applied, but the vehicle did not stop accelerating. Each time brake pressure was applied; there was a loud grinding noise. Although the cruise control was not engaged, the cruise control was manually activated in an attempt to stop the acceleration. With brake pressure applied, the contact managed to exit…
ODI 10152553
Service Brakes, Hydraulic
When applying brakes in normal city street traffic at approximately 20 mph, brakes pulsed slowly several times and then failed. Brake pedal went to floor, car crashed into rear-end of car ahead. *jb
Crash reported
ODI 10143159
Service Brakes, Hydraulic
Odd braking behavior in 2004 toyota prius. When car is in its first few minutes of operation after sitting overnight, this odd behavior occurs: the first or second time i apply the brakes, they grab as though the pedal has been pressed very hard. The car lurches to a stop. I release the brake pedal to go forward again, applying pressure to the accelerator pedal. Then i apply pressure to the brake pedal and the…
ODI 10306855
Service Brakes, Hydraulic
My 2004 prius has the same braking problem that has been reported for the 2010 prius, that is, when i am slowing down and hit a bump or hole, there is a momentary acceleration. I reported this to toyota in 2004 and regional toyota rep came out and looked at the car and said it was normal. So...this problem is not limited to 2010 prius. *tr
ODI 10306605
Service Brakes, Hydraulic
Reported to toyota on 2/7/04 file #200402110133. While driving on the highway, 70mph, cruise control on, both my wife and myself have accidentally bumped the gear shift knob with our hand and put the prius into dynamic braking mode (dbm). The semi-truck behind me almost ran me over before i could get the car back into drive. Very dangerous!!! The brake light does not come on during dbm. Toyota should change the…
ODI 10064064
Service Brakes, Hydraulic · Vehicle Speed Control
2004 toyota prius with brake problems. Consumer states that when applying the brakes the vehicle skids out of control. *kb
ODI 10316494
Catalog parts for this system
Catalog year/make/model rows for 2004 Toyota Prius.
Catalog fitment does not by itself prove OEM-equivalent compatibility.