FaultScore

FaultScore report

2005 Toyota Prius problems

Owners have filed 1,298 complaints about the 2005 Toyota Prius with NHTSA between 2005 and 2026. The largest single group is the lights. Across this model's run it ranks 3 of 25 worst.

F

FaultScore 83/100

Higher is worse. Measured against the other years of the Toyota Prius.

How this is worked out

The numbers

1,298

Complaints

133

Crashes reported

5

Fires reported

63

Injuries reported

1 complaint reports a death.

78,000 mi

Median mileage at failure

Half of reported failures happened before this

25%

Failed under 36,000 miles

Inside a typical bumper-to-bumper warranty

What kind of bad

The letter says how bad. This says what kind — whether this year drew an unusual number of complaints, unusually dangerous ones, or failures that arrived unusually early.

Complaint volume 100 vs 50 Severity 80 vs 50 Early failure 43 vs 50
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 100
Against the median year of the Toyota Prius. 50 means typical for this model; 100 means roughly double.
Severity — 80
15.6% of these complaints involved a crash, fire, injury or death, against a national rate of 9.7%.
Early failure — 43
25% of failures with a mileage on record happened under 36,000 miles, against a national rate of 29%.

How 2005 compares with every other Toyota Prius

Click any bar to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks on a 2005 Toyota Prius

Every complaint is filed against a part. Follow any row for the complaints about that part alone.

Lights 349 26.9%

3 crashes, 0 fires · median 100,500 mi

Brakes 285 22.0%

32 crashes, 0 fires · median 65,000 mi

Electrical System 179 13.8%

4 crashes, 3 fires · median 98,724 mi

33 crashes, 1 fires · median 50,000 mi

3 crashes, 1 fires · median 30,176 mi

Airbags 45 3.5%

30 crashes, 0 fires · median 65,000 mi

4 crashes, 0 fires · median 76,031 mi

Steering 40 3.1%

4 crashes, 0 fires · median 85,000 mi

1 crashes, 0 fires · median 64,897 mi

5 crashes, 0 fires · median 86,500 mi

Median failure at 75,500 miles

2 crashes, 0 fires · median 74,250 mi

4 crashes, 0 fires · median 67,384 mi

Tires 10 0.8%

Median failure at 20,000 miles

Equipment & Accessories 8 0.6%

1 crashes, 0 fires · median 57,357 mi

Seat Belts 7 0.5%

6 crashes, 0 fires · median 38,750 mi

Suspension 4 0.3%

Median failure at 20,500 miles

Doors, Latches & Locks 3 0.2%

Median failure at 5,000 miles

Wheels 3 0.2%

Median failure at 22,200 miles

Seats 1 0.1%

1 crashes, 0 fires

Exactly what failed

NHTSA files every complaint against a named sub-assembly, not just a system. This is the difference between knowing it was "the engine" and knowing which part of it — the list to hand a mechanic.

Headlights 27 27.8%
Control Unit/Module 17 17.5%
Engine 13 13.4%
Antilock/Traction Control/Electronic Limited Slip 11 11.3%
Frontal 8 8.2%
Instrument Cluster/Panel 7 7.2%
Accelerator Pedal 7 7.2%
Cooling System 7 7.2%

When it fails

Odometer readings owners gave when they filed. About half of all complaints include one.

Under 1,000 miles 58 5.4%
1,000 – 9,999 miles 78 7.2%
10,000 – 24,999 miles 80 7.4%
25,000 – 49,999 miles 125 11.6%
50,000 – 74,999 miles 170 15.7%
75,000 – 99,999 miles 162 15.0%
100,000 – 149,999 miles 230 21.3%
150,000+ miles 178 16.5%

When owners complained

A spike years after the car went on sale usually means a part wearing out on schedule across the whole fleet — the kind of pattern no single owner can see from inside their own car.

Feb 2005 peak 203 Feb 2026

NHTSA investigations into the 2005 Toyota Prius

An investigation is the step before a recall: the agency has seen enough complaints to look into a pattern itself. An open one means it thinks something may be wrong and nothing has been fixed yet.

DP22005 Opened 27 Jan 2023 Closed 7 Aug 2023 ELECTRICAL SYSTEM:PROPULSION SYSTEM

Pedestrian alert sounds

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after Marc...

DP13001 Opened 21 Feb 2013 Closed 8 Apr 2020 STEERING:COLUMN

Intermediate Steering Shaft Separation

The Office of Defects Investigation (ODI) received a January 2013 defect petition requesting that it open an investigation on Model Year (MY) 2004-2009 Toyota Prius vehicles to address a possible manufacturing safety defect related to the steering column intermediate shaft.During the defect petition evaluation, ODI: 1.Reviewed the petition and its enclosures; 2.Reviewed the subject steering system layout; 3.Examined the Petition Vehicle?s history, including its repair history; 4.Reviewed and followed-up potentially related consumer complaints; 5.Assessed Safety Recalls 06V-188 and 12V-537; and...

PE05029 Opened 31 May 2005 Closed 12 Oct 2005 ENGINE AND ENGINE COOLING:ENGINE

ENGINE STALLING

ODI OPENED PE05-029 BASED ON 33 REPORTS OF ALLEGED GASOLINE ENGINE STALLING ON THE SUBJECT VEHICLES.THE SUBJECT VEHICLES ARE GASOLINE/ ELECTRIC HYBRID VEHICLES THAT CAN BE OPERATED IN GASOLINE OR ELECTRIC MODES, OR A COMBINATION OF BOTH DEPENDING ON THE POWER DEMAND.ALL REPORTS ALLEGE THAT THE GASOLINE ENGINE SHUT DOWN SUDDENLY WITHOUT WARNING.SOME OF THE COMPLAINANTS REPORTED THAT THE VEHICLE CONTINUED TO OPERATE USING THE ELECTRIC MODE FOR A PERIOD OF TIME AFTER THE GAS ENGINE STALLED AND SOME REPORTED THAT THE VEHICLE SHUT DOWN AT THE SAME TIME THAT THEY FELT THE GAS ENGINE STALLED.SOME CON...

Recalls on the 2005 Toyota Prius

A complaint is one owner's allegation. A recall is the point at which the manufacturer or a regulator agreed the defect is real and dangerous enough to fix for free — however old the car is.

United States — NHTSA

12V537000

STEERING

Toyota is recalling certain model year 2004-2009 Prius vehicles manufactured August 5, 2003, through March 30, 2009. The affected vehicles have a steering intermediate extension shaft assembly built with metal splines that complete the connection from the steering wheel to the steering gear. These splines may have been manufactured with an insufficient hardness.

Risk: Over time, the splines may wear and eventually fail resulting in a loss of steering ability, increasing the risk of a vehicle crash.

12V536000

ENGINE AND ENGINE COOLING

Toyota is recalling certain model year 2004-2009 Prius vehicles manufactured August 6, 2003, through March 30, 2009 and FCHV-adv vehicles manufactured December 12, 2008, through September 13, 2011. During manufacturing, a scratch may have occurred inside of the electrically driven water pump at the coil wire. The coil wire may corrode at the scratched portion.

Risk: The corroded coil wire may break and the water pump could stop. The corroded coil wire could cause a short circuit between coil wires and a possible open fuse, creating a stall-like condition of the hybrid system while the vehicle is being driven. This may increase the risk of a vehicle crash.

10V036000

EQUIPMENT:OTHER:LABELS

SOUTHEAST TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2011 PASSENGER VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SOLD WITHOUT THE REQUISITE LOAD CARRYING CAPACITY MODIFICATION LABELS.

Risk: A DRIVER MAY OVERLOAD A VEHICLE WHICH MAY INCREASE THE RISK OF A CRASH.

09V388000

VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2004-2010 PASSENGER VEHICLES. THE ACCELERATOR PEDAL CAN GET STUCK IN THE WIDE OPEN POSITION DUE TO ITS BEING TRAPPED BY AN UNSECURED OR INCOMPATIBLE DRIVER'S FLOOR MAT.

Risk: A STUCK OPEN ACCELERATOR PEDAL MAY RESULT IN VERY HIGH VEHICLE SPEEDS AND MAKE IT DIFFICULT TO STOP THE VEHICLE, WHICH COULD CAUSE A CRASH, SERIOUS INJURY OR DEATH.

06V188000

STEERING:ELECTRIC POWER ASSIST SYSTEM

THE INTERMEDIATE SHAFT AND SLIDING YOKE IN THE ELECTRIC POWER STEERING SYSTEM CAN CRACK WHEN LARGE FORCES ARE APPLIED AND THE CONNECTION MAY SEPARATE OR THE SLEEVE MAY FRACTURE.

Risk: THIS COULD RESULT IN A LOSS OF STEERING CONTROL OF THE VEHICLE.

06V096000

AIR BAGS

ON CERTAIN VEHICLES, DUE TO IMPROPER ASSEMBLY OF THE AIR BAG INFLATOR, WHICH IS USED IN THE SIDE AIR BAG, THE CURTAIN SHIELD AIR BAG, AND THE KNEE AIR BAG ASSEMBLY, SOME INFLATORS WERE PRODUCED WITH AN INSUFFICIENT AMOUNT OF THE HEATING AGENTS NECESSARY FOR PROPER AIR BAG DEPLOYMENT. IN THIS CONDITION, THE EXPANSION FORCE OF THE GAS MAY BE INSUFFICIENT TO PROPERLY INFLATE THE AIR BAG WHEN THE SRS SYSTEM IS ACTIVATED DURING A CRASH.

Risk: THIS MAY INCREASE THE RISK OF INJURY TO THE OCCUPANT IN THE INVOLVED SEATING POSITION IN THE EVENT OF A CRASH.

Canada — Transport Canada

Canada runs its own recall programme, and its campaigns do not always mirror the American ones.

Recall 2021723 55,683 units in Canada

Electrical

Issue: This recall is for certain block heater kits installed on certain vehicles or sold as accessories at Toyota or Lexus dealerships. On certain vehicles, the engine block heater cable may not have enough heat protection and could be damaged by high temperatures. If this happens, the cable could short circuit while plugged in, and cause the wiring to overheat or melt. Note: This recall only affects the following block heater/cord part numbers: C014003034 PK5A408J09 PU14000904 C014003151 PK5A408J13 PU14000905 C014000885 PK5A489J11 PU14000907 C014000888 PK5A489J22 PU14000909 C014000907 PK5A410H00 PU14000911 C014100904 PU14000900 PU14000913 C014100907 PU14000901 PU14003571 C014100911 PU14000902 PK5A489J14 PK5A408J05 PU14000903 Safety Risk: Engine block heater wiring that overheats or melts could create the risk of a fire. Corrective Actions: Toyota recommends that you should stop using the engine block heater immediately. Toyota will notify owners by mail and instruct you to take your vehicle to a dealer to disable the engine block heater. For some vehicles, the corrective actions for this recall are under development. For others, a new engine block heater cannot be installed, and the owner will receive a refund of the purchase price of the engine block heater.

Recall 2012388 14,816 units in Canada

Steering

On certain vehicles, the steering intermediate shaft splines may have been improperly hardened. If the steering wheel is held firmly on the steering lock while turning sharply at low speeds, the splines could deform and wear, causing a backlash in the steering system. The splines could also become fully stripped, resulting in a potential loss of control causing a crash resulting in injury and/or damage to property. Correction: Dealers will inspect the vehicles and replace affected steering shafts.

Recall 2012387 8,740 units in Canada

Powertrain

On certain vehicles, the electrical water pump assembly, used to circulate coolant through the hybrid components, may fail. If this were to occur, coolant would stop circulating, illuminating various warning lights in the instrument panel of the vehicle. In certain cases, the water pump motor could short-circuit, causing the hybrid system to stop functioning and the engine to stall. A loss of propulsion, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash causing personal injury and/or property damage. Correction: Dealers will replace the electrical water pump.

Recall 2009290 437,445 units in Canada

Other

On certain vehicles, the accelerator pedal may become stuck in the wide open position due to an unsecured or incompatible driver's floor mat. A stuck open accelerator pedal may result in very high vehicle speeds and make it difficult to stop the vehicle, which could cause a crash, serious injury or death. Correction: Dealers will reconfigure the shape of the accelerator pedal. Certain models will also have the shape of the floor underneath the accelerator pedal modified and/or a brake override system installed.

Recall 2006129 4,138 units in Canada

Steering

On certain vehicles, the connection at the intermediate shaft or the intermediate extension shaft may become loose or the intermediate shaft sleeve may develop a crack under certain operating conditions. The connection may separate or the shaft sleeve may fracture, which could result in the loss of steering control and an increased risk of a crash. Correction: Dealers will replace the steering intermediate shaft. In addition, the dealer will inspect the sliding yoke and the intermediate extension shaft and replace them if necessary.

Recalls cover specific build ranges, so check your own vehicle by VIN at nhtsa.gov/recalls or, in Canada, Transport Canada.

Complaints that involved harm

Reports where the owner recorded a crash, a fire, an injury or a death.

Citrus Heights, CA Crash 1 injured

AIR BAGS

Vehicle: 2005 Toyota Prius VIN: [XXX] Date of Incident: April 2024 Location: Citrus Heights, California Incident Summary: In April 2024, I was involved in a front-end collision while driving my 2005 Toyota Prius. I rear-ended another vehicle at moderate to high speed. Despite the severity of the impact, the driver-side airbag failed to deploy. As a result, I was thrown forward and hit my head on the windshield, suffering lacerations and head trauma. After being evaluated by emergency responders and undergoing a hospital visit (MRI included), I was told I had not sustained any life-threatening injuries. However, since the crash, I have experienced severe cognitive symptoms, including confusion, chronic fatigue, sudden drowsiness, memory loss, and extreme mood swings. These symptoms are ongoing and have made daily life extremely difficult. I had brought the vehicle to Roseville Toyota in Roseville, CA, for a full pre-purchase inspection prior to the crash. They provided a CARFAX vehicle history report, but they did not inform me that the airbag had failed to deploy in a previous incident listed in the report. I was unaware the airbag system might be defective, and if I had known, I would not have driven or purchased the vehicle. To this day, there has been no recall issued for airbags on this vehicle, and I believe this is a dangerous and potentially fatal defect that must be investigated by NHTSA. I am asking for an investigation into why the airbag system failed, and whether other Toyota Prius models from these years have similar undisclosed issues. Supporting Info: •The vehicle had dealership service history. •Toyota has documentation showing the vehicle was inspected and that I received the CARFAX, but they failed to alert me to the airbag defect. •I was paid out for the vehicle’s value and partial medical expenses through insurance, but no accountability has been taken for the **failed airbag INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11658429 — an unverified report by a vehicle owner.

El Sobrante, CA Crash 2 injured

SEAT BELTS

On 9/12/21, I was driving 25-30mph when the SUV in front of me stopped on the freeway interchange suddenly and unexpectedly (other cars were not around us). I hit the breaks very hard and fast but could not stop and collided with the SUV. The front end of the Prius lodged under the back end of the SUV and the impact was enough to wreck the Prius. During that collision, the driver side seatbelt engaged, but the passenger side seatbelt did not. My preteen hit his forehead on the dashboard very hard. Additionally, the airbags failed to deploy. I could smell an odor from the dust from the airbags. The car is at a repair shop waiting for insurance adjuster to inspect. There were no warning lamps or other messages of the problem prior to the failure.

NHTSA complaint #11432759 — an unverified report by a vehicle owner.

El Sobrante, CA Crash 2 injured

AIR BAGS

On 9/12/21, I was driving 25-30mph when the SUV in front of me stopped on the freeway interchange suddenly and unexpectedly (other cars were not around us). I hit the breaks very hard and fast but could not stop and collided with the SUV. The front end of the Prius lodged under the back end of the SUV and the impact was enough to wreck the Prius. During that collision, the driver side seatbelt engaged, but the passenger side seatbelt did not. My preteen hit his forehead on the dashboard very hard. Additionally, the airbags failed to deploy. I could smell an odor from the dust from the airbags. The car is at a repair shop waiting for insurance adjuster to inspect. There were no warning lamps or other messages of the problem prior to the failure.

NHTSA complaint #11432759 — an unverified report by a vehicle owner.

Baltimore, MD Crash

EXTERIOR LIGHTING

HEADLIGHT CAME OFF AND ON WHILE I'M DRIVING ALL FUSE OK ALL BULBS OK LOOKING ON THE WEB APPEARS LIKE THIS IS A COMMON PROBLEM ON THIS VEHICLE ALSO RADIO LIGHT SAME PROBLEM

NHTSA complaint #11024664 — an unverified report by a vehicle owner.

at 178,000 miles High Bridge, NJ Fire

ELECTRICAL SYSTEM

DURING CHARGING THE VEHICLE CAUGHT FIRE DURING THE PROCESS DISTROYING VEHICLE VEHICLE WAS STATIONARY

NHTSA complaint #10991701 — an unverified report by a vehicle owner.

at 180,000 miles Fremont, CA Crash

SERVICE BRAKES

STEPPING ON THE BRAKE PEDAL DID NOT STOP OR SLOW DOWN THE CAR.

NHTSA complaint #10983769 — an unverified report by a vehicle owner.

The most recent complaints

In the owners' own words, exactly as filed with NHTSA.

Stockton, CA

POWER TRAIN

Eingen faliur acording to dealership Toyota of Anthioc the veicle is on there lot for now but there diagnostic was engine faliure

NHTSA complaint #11718280 — an unverified report by a vehicle owner.

Stockton, CA

UNKNOWN OR OTHER

Eingen faliur acording to dealership Toyota of Anthioc the veicle is on there lot for now but there diagnostic was engine faliure

NHTSA complaint #11718280 — an unverified report by a vehicle owner.

Stockton, CA

ENGINE

Eingen faliur acording to dealership Toyota of Anthioc the veicle is on there lot for now but there diagnostic was engine faliure

NHTSA complaint #11718280 — an unverified report by a vehicle owner.

Lake Mary, FL

SERVICE BRAKES

ABS actuator failed and had little to no braking action while merging on the freeway. Had to swerve to avoid collision on interstate

NHTSA complaint #11710245 — an unverified report by a vehicle owner.

at 143,500 miles Dover, DE

EXTERIOR LIGHTING:TURN SIGNAL

The contact owns a 2005 Toyota Prius. The contact stated that while replacing the instrument cluster, the contact discovered that the turn signals were inoperable. The vehicle was taken to the dealer, who determined that an unknown part needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 143,500.

NHTSA complaint #11698502 — an unverified report by a vehicle owner.

at 143,500 miles Dover, DE

ELECTRICAL SYSTEM

The contact owns a 2005 Toyota Prius. The contact stated that while driving at an undisclosed speed, the left turn signal was activated, however, the left turn signal failed to function as intended. In addition, the contact stated that the four-way flashers failed to function as intended. The vehicle was taken to the dealer where it was diagnosed with a computer failure. The contact was informed that an unknown part needed to be replaced, or an unknown software update was needed. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact referenced an unknown recall with a similar failure description; however, the VIN was not under recall. The failure mileage was approximately 143,500.

NHTSA complaint #11698556 — an unverified report by a vehicle owner.

at 143,500 miles Dover, DE

EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT

The contact owns a 2005 Toyota Prius. The contact stated that while driving at an undisclosed speed, the left turn signal was activated, however, the left turn signal failed to function as intended. In addition, the contact stated that the four-way flashers failed to function as intended. The vehicle was taken to the dealer where it was diagnosed with a computer failure. The contact was informed that an unknown part needed to be replaced, or an unknown software update was needed. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact referenced an unknown recall with a similar failure description; however, the VIN was not under recall. The failure mileage was approximately 143,500.

NHTSA complaint #11698556 — an unverified report by a vehicle owner.

Citrus Heights, CA Crash 1 injured

AIR BAGS

Vehicle: 2005 Toyota Prius VIN: [XXX] Date of Incident: April 2024 Location: Citrus Heights, California Incident Summary: In April 2024, I was involved in a front-end collision while driving my 2005 Toyota Prius. I rear-ended another vehicle at moderate to high speed. Despite the severity of the impact, the driver-side airbag failed to deploy. As a result, I was thrown forward and hit my head on the windshield, suffering lacerations and head trauma. After being evaluated by emergency responders and undergoing a hospital visit (MRI included), I was told I had not sustained any life-threatening injuries. However, since the crash, I have experienced severe cognitive symptoms, including confusion, chronic fatigue, sudden drowsiness, memory loss, and extreme mood swings. These symptoms are ongoing and have made daily life extremely difficult. I had brought the vehicle to Roseville Toyota in Roseville, CA, for a full pre-purchase inspection prior to the crash. They provided a CARFAX vehicle history report, but they did not inform me that the airbag had failed to deploy in a previous incident listed in the report. I was unaware the airbag system might be defective, and if I had known, I would not have driven or purchased the vehicle. To this day, there has been no recall issued for airbags on this vehicle, and I believe this is a dangerous and potentially fatal defect that must be investigated by NHTSA. I am asking for an investigation into why the airbag system failed, and whether other Toyota Prius models from these years have similar undisclosed issues. Supporting Info: •The vehicle had dealership service history. •Toyota has documentation showing the vehicle was inspected and that I received the CARFAX, but they failed to alert me to the airbag defect. •I was paid out for the vehicle’s value and partial medical expenses through insurance, but no accountability has been taken for the **failed airbag INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11658429 — an unverified report by a vehicle owner.

Troutman, NC

SERVICE BRAKES

i had brake warning lights pop up on my dash..my brake actuator fail on my 05 prius.. this is a known issue with toyota prius. the brake actuator is a very important part of the braking system and vehicle is deemed unsafe with a failed actuator/module.. the dealer quoted over 3000 in repairs.. they were covering them for a while and now they are not.. the cost of the repair exceeds the value of vehicle due to the brake actuator being very expensive.. this is something that should have been recalled..

NHTSA complaint #11648968 — an unverified report by a vehicle owner.

Cape Coral, FL

SERVICE BRAKES

Brake actuator going bad. Safety is put at risk as brakes are slow to work and sometimes don't work at all for a couple of seconds, making sudden stops impossible. Has not been confirmed by dealer. Has not been inspected. ABS and TPMS light would briefly pop up for a couple of seconds on car startup before shutting off.

NHTSA complaint #11608878 — an unverified report by a vehicle owner.

at 299,999 miles Clara City, MN

SERVICE BRAKES

The contact owns a 2005 Toyota Prius. The contact stated that while driving at an undisclosed speed, the brakes seized. In addition, the contact heard a squealing sound and the ABS warning light illuminated. The contact used the parking brake to stop the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The contact stated that the odometer was inoperable and failed to display the correct mileage. The contact stated that the odometer was stuck on 299,999.

NHTSA complaint #11596913 — an unverified report by a vehicle owner.

at 299,999 miles Clara City, MN

ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER

The contact owns a 2005 Toyota Prius. The contact stated that while driving at an undisclosed speed, the brakes seized. In addition, the contact heard a squealing sound and the ABS warning light illuminated. The contact used the parking brake to stop the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The contact stated that the odometer was inoperable and failed to display the correct mileage. The contact stated that the odometer was stuck on 299,999.

NHTSA complaint #11596913 — an unverified report by a vehicle owner.

Mesa, AZ

SERVICE BRAKES

This has been an on going issue with all of toyota hybrids, the abs actuator which control the brakes isn't safe to drive around when not functioning right. Dealership will not replace im suprise that this has no been a recall as its a safety hazard on the road not only for the driver but putting others in danger. My brakes sometimes is floored to the ground with minimal stoppage.

NHTSA complaint #11593182 — an unverified report by a vehicle owner.

Batavia, OH

SERVICE BRAKES

Prius have a LONG known problem w/ braking systems (over 15 years) defaulting to SOFT brake pedal that (will) kill any driver. Toyota decided to avoid a recall by paying off a few repair jobs, during warranty. They have created a new part to resolve the issue. $4000 to replace a brake pump. Most fail at 150k miles. . [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11582441 — an unverified report by a vehicle owner.

Queensbury, NY

AIR BAGS

I had lost functionality for some buttons on the steering wheel that didn't directly impact safety. On replacing the clockspring mechanism inside the whweel I decided to inspect the old unit. Four of the lines in the flex cable are impacted by corrosion, three have already failed. The fourth line is one of the airbag's electrical lines. I'm filing an issue report because the airbag would be next impacted by this failure and I believe there's a fair chance the corroded line could fail during the vehicle's attempt to fire the airbag on the wheel.

NHTSA complaint #11547686 — an unverified report by a vehicle owner.

Queensbury, NY

STEERING

I had lost functionality for some buttons on the steering wheel that didn't directly impact safety. On replacing the clockspring mechanism inside the whweel I decided to inspect the old unit. Four of the lines in the flex cable are impacted by corrosion, three have already failed. The fourth line is one of the airbag's electrical lines. I'm filing an issue report because the airbag would be next impacted by this failure and I believe there's a fair chance the corroded line could fail during the vehicle's attempt to fire the airbag on the wheel.

NHTSA complaint #11547686 — an unverified report by a vehicle owner.

Queensbury, NY

ELECTRICAL SYSTEM

I had lost functionality for some buttons on the steering wheel that didn't directly impact safety. On replacing the clockspring mechanism inside the whweel I decided to inspect the old unit. Four of the lines in the flex cable are impacted by corrosion, three have already failed. The fourth line is one of the airbag's electrical lines. I'm filing an issue report because the airbag would be next impacted by this failure and I believe there's a fair chance the corroded line could fail during the vehicle's attempt to fire the airbag on the wheel.

NHTSA complaint #11547686 — an unverified report by a vehicle owner.

Dallas, NC

SERVICE BRAKES

11 months ago I had a brand new Toyota ABS brake actuator installed on my 2005 Prius. Less than a year later, it is failing again. Since I've driven the car more than 12,000 miles Toyota will not replace the part under warranty. Toyota charges $1800 for the part alone. I had an abs brake actuator fail on a previous 2007 Prius as well. Toyota forums imply this is a too common problem.

NHTSA complaint #11544891 — an unverified report by a vehicle owner.

San Bernardino, CA

ELECTRICAL SYSTEM

The red triangle keeps coming on with engine repair light when ever I'm driving from Los Angeles. My mechanic said that there's a recall from 2004 for the water pump. Please advise. Thank you, [XXX] [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA complaint #11521924 — an unverified report by a vehicle owner.

Akron, OH

SERVICE BRAKES

We purchased our 2005 Prius in 2014, and after 7 years of learning to drive with the bizarre behavior of this Gen 3 Prius, and reporting it to the dealer (who said that's just how they are designed), I just read dozens of reports on NHTSA, all from Gen3 Prius owners, all reporting identical issues with the antilock braking and traction control systems. It is as if Toyota intentionally designed them to operate exactly the opposite of how they should. With traction control, anytime the front drive wheels loose traction - gravel, railroad tracks, even as simple as painted road stripes or damp surfaces - traction control kicks in; however, on this car, traction control immediately cuts all motive power to the drive wheels, leaving the driver vulnerable to getting hit from behind; it cuts in and out until the car decides it has enough traction to proceed. It's dangerous and idiotic. The anti-lock brakes do much the same; if one encounters a situation requiring emergency braking, when the anti-lock system initiates, the brakes simply cut out, and the car jumps ahead, until they grab, then loose again immediately, with multiple lurches, and sometimes just no brakes at all available. It is dangerous and, from the Toyota dealer where we get it serviced regularly, a constant complaint from owners. And, Toyota does nothing. There needs to be a class action addressing both of these dangerous propensities. It's an awful design. Just awful.

NHTSA complaint #11509394 — an unverified report by a vehicle owner.

Eureka, CA

UNKNOWN OR OTHER

While driving in a heavy trafficed area, my car eccellerated on its own. When i stepped on the brake the car did not respond but simply kept driving at around 20 miles per hour. Magically i was able to navigated the traffic and there was no crash, but there certainly could have been and several people could have been badly hurt. I have scheduled a mechanics assessment for tomorrow.

NHTSA complaint #11506504 — an unverified report by a vehicle owner.

Oakland, CA

FUEL/PROPULSION SYSTEM

Fuel pump malfunctioned. The vehicle stalled at low speeds while driving on an incline and gave a large red exclamation error sign on the dashboard. It stopped accelerating and came to a stop. Afterwards the engine will not start anymore. The car was towed to a garage and they found the fuel pump to be faulty.

NHTSA complaint #11479695 — an unverified report by a vehicle owner.

Charlotte, NC

ELECTRICAL SYSTEM

When driving the vehicle multiple lights came on (ABS, VSC, & brake)! Brakes became hard to push at times and didn’t feel normal. Took it to shop and had both ABS speed sensors replaced. Warning lights went away and brakes were normal again. After a day, the lights came back on and a constant alarm started sounding! The brake system failed and the vehicle was super hard to stop! Came very close to having a major accident on the interstate when this happened!!! It took pumping of the brakes and full force on the pedal to bring it to a stop!! Went back to the shop and was told that the ABS control module/actuator went bad and needs to be replaced. Was also told that this system is a known problem in Toyota Prius’s for a long time!!!!!!!!!!!!!!

NHTSA complaint #11458514 — an unverified report by a vehicle owner.

Charlotte, NC

SERVICE BRAKES

When driving the vehicle multiple lights came on (ABS, VSC, & brake)! Brakes became hard to push at times and didn’t feel normal. Took it to shop and had both ABS speed sensors replaced. Warning lights went away and brakes were normal again. After a day, the lights came back on and a constant alarm started sounding! The brake system failed and the vehicle was super hard to stop! Came very close to having a major accident on the interstate when this happened!!! It took pumping of the brakes and full force on the pedal to bring it to a stop!! Went back to the shop and was told that the ABS control module/actuator went bad and needs to be replaced. Was also told that this system is a known problem in Toyota Prius’s for a long time!!!!!!!!!!!!!!

NHTSA complaint #11458514 — an unverified report by a vehicle owner.

at 25,000 miles Statham, GA

ELECTRICAL SYSTEM

The contact owns a 2005 Toyota Prius. The contact stated when the vehicle was started, the instrument panel was inoperable. The vehicle was taken to the local dealer however, the mechanic was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was not contacted or informed of the failure. The VIN was not available. The approximate failure mileage was 25,000.

NHTSA complaint #11457000 — an unverified report by a vehicle owner.