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2004 Toyota Prius

Owner reports · Recalls · Investigations

More warning signs than most Prius years

Owner complaints for the 2004 Toyota Prius are substantially higher than the model-year median of 164.

About this comparison →

When problems were reported

Mileage at the reported incident

503 reports with mileage · 107 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Exterior Lighting. Review the 184 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 177 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 89 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

38 crash reports2 fire reports21 injury reports

Service Brakes, Hydraulic complaints

39 reports
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Mileage unknown · Feb 5, 2010
Service Brakes, Hydraulic

PROBLEM WITH ANTI-LOCK BRAKES NOT WORKING WHEN HITTING ROUGH SURFACES SUCH AS POTHOLES. *TR

NHTSA ODI #10306478

75,000 miles · Feb 4, 2010
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, POTHOL…

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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 THE SAME STREET) HAS NEVER CAUSED ME TO LOOSE CONTROL OF THE CAR FOR MORE THAN A SPLIT SECOND. SO UNTIL I READ THIS PASSAGE I THOUGHT I MIGHT JUST BE IMAGINING THIS PROBLEM. IF IT HAPPENED FOR EVEN MORE THAN A SPLIT SECOND I COULD SEE HOW IT WOULD CAUSE ME TO LOSE CONTROL AND POSSIBLY GET IN AN ACCIDENT. BUT THAT HASN'T HAPPENED YET. *TR

NHTSA ODI #10305943

68,000 miles · Nov 16, 2009
Engine And Engine CoolingExterior LightingService Brakes, Hydraulic

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 S…

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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 11/23/09 *BF THE CHECK ENGINE LIGHT ILLUMINATED. THE PASSENGER FRONT WINDOW SWITCH WASN'T OPENING OR CLOSING THE WINDOW UNLESS THE MASTER SWITCH WAS USED. THE THROTTLE BODY HAD TO BE CLEANED. THE FAN BELT AND BRAKE LIGHT SWITCH WERE REPLACED. UPDATED 11/24/09 UPDATED 01/06/10 *BF UPDATED 01/07/10.*JB

NHTSA ODI #10292409

43,000 miles · Jan 15, 2009
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 REPEATE…

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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, RESET THE BRAKE PISTON CALPALTORS, AND THE RELAY THAT CONTROL THE BRAKES, AND THE 12 VOLT BATTERY. NONE OF THESE REPAIRS HAVE WORKED. BRAKES STILL FAIL REGULARLY. COMPLAINT LODGE WITH TOYOTA CUSTOMER SATISFACTION CENTER. *TR

NHTSA ODI #10255214

90 miles · Aug 5, 2008
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 ORDE…

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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. THANKS GOD I WAS ONLY 1 MILE FROM THE TOYOTA DEALER. I HAD A SCHEDULED EVAPORATOR REPLACEMENT ($450)SCHEDULED FOR TOMORROW SO I DECIDED TO LEAVE THE CAR AT THE DEALER (THIS IS WHAT THE MANUAL SAYS TO DO WHEN BOTH WARNINGS GO OFF). *TR

NHTSA ODI #10237067

42,980 miles · Apr 28, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2004 TOYOTA PRIUS. WHILE DRIVING 60 MPH, ALL OF THE BRAKE WARNING LIGHTS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS DIAGNOSED BY THE DEALER. THE FAILURE MILEAGE WAS 42,980.

NHTSA ODI #10225931

Mileage unknown · Dec 5, 2007
Service Brakes, Hydraulic

TOYOTA PRIUS TRACTION CONTROL SYSTEM-IF YOU ARE GOING UP A HILL AND YOU LOOSE TRACTION DUE TO SNOW AND THE CAR STOPS. YOU CANNOT EVER GO FORWARD,IF THE TIRES ATTEMPT TO SPIN AT ANY LEVEL OG GAS/ELECTRIC THE RPM GOES TO ZERO. THE ONLY WAY TO MOVE THE CAR IS TO BACK DOWN THE HILL. NEED I SAY MORE. THE DEALER AGREES AND STATED TOYO…

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TOYOTA PRIUS TRACTION CONTROL SYSTEM-IF YOU ARE GOING UP A HILL AND YOU LOOSE TRACTION DUE TO SNOW AND THE CAR STOPS. YOU CANNOT EVER GO FORWARD,IF THE TIRES ATTEMPT TO SPIN AT ANY LEVEL OG GAS/ELECTRIC THE RPM GOES TO ZERO. THE ONLY WAY TO MOVE THE CAR IS TO BACK DOWN THE HILL. NEED I SAY MORE. THE DEALER AGREES AND STATED TOYOTA NEVER GAVE US A FIX. WE HAVE THIS PROBLEM FOR YEARS. I HAVE TALKED TO OTHER PRIUS OWNERS AND THEY ALL SAY THE SAME ,YOU HAVE TO USE YOUR OTHER CAR. WHICH I DO. HOWEVER MY WIFE USED THE CAR LAST WEEK AND WE HAD SOME MINOR SNOW AND SHE WAS ON A HILL(GOING UP) FOR 2 HRS BEFORE SHE WAS ABLE TO BACK DOWN WHEN MORNING TRAFFIC SUBSIDED. THIS IS A 2004 PRIUS. THIS CAN BE A DANGEROUS SITUATION FOR A PERSON THAT IS UNCOMFORTABLE IN BACKING DOWN A HILL. *TR

NHTSA ODI #10210888

83,668 miles · Apr 29, 2007
Service Brakes, Hydraulic

WARNING TRIANGLE, DASH LIGHTS-BRAKE, ABS, CAME ON ACCOMPANIED BY A LOUD WHINING SOUND. THE NEXT TIME I NEEDED TO USE THE BRAKES I DISCOVERED THAT THERE WAS TOTAL BRAKE FAILURE - PEDAL DOWN TO THE FLOOR WITH NO BRAKES. I WAS VERY FORTUNATE THAT I WAS ABLE TO ROLL TO A STOP. I TOOK THE CAR TO AUBURN TOYOTA (IN CA) AND THEY SAID IT…

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WARNING TRIANGLE, DASH LIGHTS-BRAKE, ABS, CAME ON ACCOMPANIED BY A LOUD WHINING SOUND. THE NEXT TIME I NEEDED TO USE THE BRAKES I DISCOVERED THAT THERE WAS TOTAL BRAKE FAILURE - PEDAL DOWN TO THE FLOOR WITH NO BRAKES. I WAS VERY FORTUNATE THAT I WAS ABLE TO ROLL TO A STOP. I TOOK THE CAR TO AUBURN TOYOTA (IN CA) AND THEY SAID IT WAS A SKID CONTROL ECU FAILURE. THEY REPLACED IT AT A TOTAL COST OF $1868.74. *TR

NHTSA ODI #10189194

49,000 miles · Feb 21, 2007
Service Brakes, Hydraulic

TL*- THE CONTACT CALLED REGARDING THE 2004 TOYOTA PRIUS. THE CONTACT STATED HE WAS TRAVELING UP A HILL AT 10-15 MPH WITH ICY ROAD CONDITIONS AND THE ANTI-SKID CONTROL ENGAGED AND ALL FOUR WHEELS ON THE VEHICLE LOCKED. THE CONTACT PRESSED THE GAS PEDAL. HOWEVER, THE VEHICLE WOULD NOT MOVE. THE VEHICLE DID NOT LOSE POWER. …

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TL*- THE CONTACT CALLED REGARDING THE 2004 TOYOTA PRIUS. THE CONTACT STATED HE WAS TRAVELING UP A HILL AT 10-15 MPH WITH ICY ROAD CONDITIONS AND THE ANTI-SKID CONTROL ENGAGED AND ALL FOUR WHEELS ON THE VEHICLE LOCKED. THE CONTACT PRESSED THE GAS PEDAL. HOWEVER, THE VEHICLE WOULD NOT MOVE. THE VEHICLE DID NOT LOSE POWER. THE CONTACT STATED HE HAD TO BACK THE VEHICLE UP IN ORDER FOR THE WHEELS TO EVENTUALLY GO FORWARD. THE CONTACT CALLED THE DEALER, TESTED A PRIUS AND HAD THE SAME TYPE FAILURE. THE DEALER STATED THAT WAS THE NORMAL OPERATION OF THE VEHICLE. THE FAILURE MILEAGE WAS 49,000. *AK UPDATED 03/19/07. *JB

NHTSA ODI #10183148

16,997 miles · Sep 5, 2006
Electrical SystemService Brakes, HydraulicVehicle Speed Control

I TURNED LEFT INTO DRIVEWAY OF A HOME- DRIVEWAY HAS AN INCLINE. I TURNED OFF POWER AND TWO CHILDREN EXITED CAR. ONE PASSENGER RETURNED WITHIN FIVE MIN AND SAT IN FRONT. I PLACED FOOT ON BRAKE. BRAKE FELT "LOCKED" WITH NO GIVE. I PRESSED POWER BUTTON WITH FOOT ON BRAKE, AND PLACED GEAR IN REVERSE. I LET FOOT OFF BRAKE TO ROLL …

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I TURNED LEFT INTO DRIVEWAY OF A HOME- DRIVEWAY HAS AN INCLINE. I TURNED OFF POWER AND TWO CHILDREN EXITED CAR. ONE PASSENGER RETURNED WITHIN FIVE MIN AND SAT IN FRONT. I PLACED FOOT ON BRAKE. BRAKE FELT "LOCKED" WITH NO GIVE. I PRESSED POWER BUTTON WITH FOOT ON BRAKE, AND PLACED GEAR IN REVERSE. I LET FOOT OFF BRAKE TO ROLL SLOWLY OUT OF DRIVEWAY. WHEN I ATTEMPTED TO BRAKE TO SLOW EXIT, MY FOOT WENT ALL THE WAY TO FLOOR--NO POWER. I NOTICE GEAR WAS NEUTRAL. POWER WOULD NOT TURN OFF. CAR WAS ROLLING CLOSER TOWARD A BUSY FOUR LANE STREET. I NOTICED THE POWER BUTTON LIGHT COLOR WAS RED, AND THE FOLLOWING YELLOW WARNING INDICATORS WERE LIT: BRAKE SYSTEM WARNING LIGHT, MALFUNCTION INDICATOR LAMP, ANTI-LOCK BRAKE SYSTEM WARNING LIGHT, SLIP INDICATOR LIGHT. I DEPRESSED THE EMERGENCY BRAKE TO STOP. I TOLD MY 14 Y/O PASSENGER TO EXIT THE CAR AND WHEN SHE DID THE MASTER WARNING LIGHT CAME ON WHILE THE ABOVE LIGHTS REMAINED LIT. THE BRAKE CONTINUED TO DEPRESS TO THE FLOOR. I AGAIN ATTEMPTED TO TURN OFF THE POWER WITHOUT SUCCESS. I EXITED THE VEHICLE WITH MY SMART ENTRY KEY IN HAND AND AS EXPECTED LOUD BUZZING NOISE CAME ON. I THEN CONTACTED TOYOTA ROADSIDE ASSISTANCE. THE REFERENCE NUMBER IS 269-568-6678. I CALLED BACK LATER TO CHANGE THE REFERENCE NUMBER TO 269-492-2066. I HAD ASKED FOR POLICE ASSISTANCE FOR TRAFFIC CONTROL, BUT THE POLICE DID NOT SHOW. ON 9/6 A.M., JIM AT METRO TOYOTA SERVICE, KALAMAZOO, MI CALLED & I DESCRIBED THE ABOVE TO HIM. AT 1530 ON 9/6/06, I DESCRIBED MY EXPERIENCE TO MARVIN AT TOYOTA CUSTOMER RELATION. THE CASE NUMBER HE PROVIDED WAS 200609051137. THIS IS THE SECOND LIKE INCIDENT WITH THIS VEHICLE. I DID NOT REPORT THE FIRST INCIDENT TO THE NHTSA WHICH OCCURRED A FEW MONTHS AFTER I TOOK POSSESSION OF THE THEN NEW 2004 TOYOTA PRIUS. NO REASON WAS FOUND FOR THE FIRST INCIDENT, BY THE SAME DEALERSHIP SERVICE. *NM THE CONSUMER STATED THE VEHICLE ACCELERATED ON ITS OWN. ALSO, WHEN THE CONSUMER APPLIED THE BRAKES, THE PEDAL BECAME SOFT AND WENT DOWN TO THE FLOOR. UPDATED

NHTSA ODI #10167393

Official recalls

6

12V536000 · Engine And Engine Cooling; Hybrid Propulsion System: Inverter

Nov 14, 2012

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.

Consequence & remedy

Consequence: 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.

Remedy: Toyota will notify its owners, and dealers will replace the electric water pump, free of charge. The recall began on January 17, 2013. Owners may contact their Toyota dealer or the Toyota Customer Experience Center at 1-800-331-4331.

Additional source detail variants (2)

Hybrid Propulsion System: Inverter

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.

Consequence: 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.

Remedy: Toyota will notify its owners, and dealers will replace the electric water pump, free of charge. The recall began on January 17, 2013. Owners may contact their Toyota dealer or the Toyota Customer Experience Center at 1-800-331-4331.

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.

Consequence: 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.

Remedy: Toyota will notify its owners, and dealers will replace the electric water pump, free of charge. The recall began on January 17, 2013. Owners may contact their Toyota dealer or the Toyota Customer Experience Center at 1-800-331-4331.

12V537000 · Steering; Steering:gear Box:shaft Sector

Nov 14, 2012

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.

Consequence & remedy

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

Remedy: Toyota will notify owners, and dealers will inspect the extension shaft and replace it if it is one with insufficient hardness, free of charge. The recall began during December 2012. Owners may contact their Toyota dealer or the Toyota Customer Experience Center at 1-800-331-4331.

Additional source detail variants (2)

Steering:gear Box:shaft Sector

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.

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

Remedy: Toyota will notify owners, and dealers will inspect the extension shaft and replace it if it is one with insufficient hardness, free of charge. The recall began during December 2012. Owners may contact their Toyota dealer or the Toyota Customer Experience Center at 1-800-331-4331.

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.

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

Remedy: Toyota will notify owners, and dealers will inspect the extension shaft and replace it if it is one with insufficient hardness, free of charge. The recall began during December 2012. Owners may contact their Toyota dealer or the Toyota Customer Experience Center at 1-800-331-4331.

09V388000 · Vehicle Speed Control:accelerator Pedal

Oct 5, 2009

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.

Consequence & remedy

Consequence: 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.

Remedy: TOYOTA FILED AN AMENDED DEFECT REPORT ON NOVEMBER 25, 2009, STATING THAT DEALERS WILL MODIFY THE ACCELERATOR PEDAL AND, ON CERTAIN VEHICLES, ALTER THE SHAPE OF THE FLOOR SURFACE UNDER THE PEDAL. THESE CHANGES ADDRESS THE RISK OF PEDAL ENTRAPMENT DUE TO INTERFERENCE WITH THE FLOOR MAT. REDESIGNED ACCELERATOR PEDALS WILL BECOME AVAILABLE BEGINNING IN APRIL 2010 AND DEALERS WILL REPLACE ANY MODIFIED PEDAL WITH THE NEW PEDAL IF DESIRED. ALSO, DEALERS WILL REPLACE ANY GENUINE TOYOTA OR LEXUS ALL-WEATHER FLOOR MATS WITH REDESIGNED ALL-WEATHER MATS, OR REPURCHASE THE PREVIOUS MATS FROM OWNERS WHO DO NOT WANT THE NEW ONES. ADDITIONALLY, SOFTWARE MODIFICATIONS WILL BE INSTALLED ON CAMRY, AVALON AND LEXUS ES 350, IS 350 AND IS 250 MODELS THAT WILL ENSURE THAT THE BRAKE OVERRIDES THE ACCELERATOR IN THE EVENT BOTH BRAKE AND ACCELERATOR PEDALS ARE APPLIED. TOYOTA WILL BEGIN MAILING LETTERS TO OWNERS ON DECEMBER 31, 2009. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331, LEXUS AT 1-800-255-3987.

06V188000 · Steering:electric Power Assist System

May 31, 2006

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.

Consequence & remedy

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

Remedy: TOYOTA WILL REPLACE THE STEERING INTERMEDIATE SHAFT AND INSPECT THE SLIDING YOKE AND REPLACE IT IF NECESSARY. THE RECALL BEGAN ON JUNE 9, 2006. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

06V096000 · Air Bags

Apr 3, 2006

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.

Consequence & remedy

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

Remedy: DEALERS WILL REPLACE THE SPECIFIC SRS AIR BAG. THE RECALL BEGAN ON APRIL 6, 2006. OWNERS MAY CONTACT TOYOTA AT 1-888-270-9371, SCION AT 1-866-548-1851, OR LEXUS AT 1-800-255-3987.

04V558000 · Exterior Lighting:brake Lights:switch

Nov 22, 2004

CERTAIN PASSENGER VEHICLES MAY BE EQUIPPED WITH AN IMPROPERLY DESIGNED BRAKE LIGHT SWITCH. A SILICON OXIDE BUILD-UP OCCURS ON THE CONTACTS INSIDE THE BRAKE LIGHT SWITCH, WHICH CAN MAKE IT INOPERABLE.

Consequence & remedy

Consequence: IF THE SWITCH IS INOPERABLE, THE BRAKE LIGHTS WILL NOT ILLUMINATE AND CAN INCREASE THE RISK OF A CRASH.

Remedy: DEALERS WILL REPLACE THE BRAKE LIGHT SWITCH. THE RECALL BEGAN DURING DECEMBER 2004. OWNERS SHOULD CONTACT TOYOTA AT 1-800-331-4331.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

3

DP22005 · Pedestrian Alert Sounds

Opened Jan 27, 2023 · Closed Aug 7, 2023

Status: closed (inferred from source dates) · Electrical System:propulsion System

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 March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

DP13001 · Intermediate Steering Shaft Separation

Opened Feb 21, 2013 · Closed Apr 8, 2020

Status: closed (inferred from source dates) · Steering; Steering:column; Steering:linkages

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, 6.Requested and examined complaint, claim, field report, service history, and warranty information from Toyota.ODI's review revealed that the petition vehicle had been recalled (Recall 06V188) to remedy a defect in the system identified in the petition with the remedy taking place prior to the failure that prompted the petition. Circumstances point to incorrect reassembly of the petitioner's vehicle by those who performed the recall remedy.ODI examined the issues raised by this petition to identify any related safety defect trend in the general subject vehicle population.That review identified a low rate of related consumer complaints (twenty-five over a eight year period from a population of over 600,000 vehicles) and no pattern that would identify either a safety defect not already covered by the two existing steering safety recalls by Toyota or a systematic problem with either recall remedy.Based on this evaluation, ODI does not believe that additional investigation will lead to a finding that a defect related to motor vehicle safety exists in the subject vehicles. Therefore, in view of the need to allocate and prioritize NHTSA?s limited resources to best accomplish the agency's safety mission, the petition is denied. The denial of this petition does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take further action if warranted by the circumstances.For more information, see the Federal Register notice in the public file for this action (https://www.nhtsa.gov/recalls#vehicle, select NHTSA ID, enter: DP13001)The ODI reports cited above can be reviewed on-line (https://www.nhtsa.gov/recalls#vehicle) under the following NHTSA ID numbers:10407520, 10418710, 10429551, 10473654, 10478195, 10478053, 10437229, 10489425, 10510722, 10639984, 10648277, 10499778, 10712626, 10723196, 10787530, 10808124, 10838803, 11071646, 11098144, 11099507, 11102659, 11160767, 11192607, 11287550, 11287606

Additional source detail variants (3)

Steering:column

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, 6.Requested and examined complaint, claim, field report, service history, and warranty information from Toyota.ODI's review revealed that the petition vehicle had been recalled (Recall 06V188) to remedy a defect in the system identified in the petition with the remedy taking place prior to the failure that prompted the petition. Circumstances point to incorrect reassembly of the petitioner's vehicle by those who performed the recall remedy.ODI examined the issues raised by this petition to identify any related safety defect trend in the general subject vehicle population.That review identified a low rate of related consumer complaints (twenty-five over a eight year period from a population of over 600,000 vehicles) and no pattern that would identify either a safety defect not already covered by the two existing steering safety recalls by Toyota or a systematic problem with either recall remedy.Based on this evaluation, ODI does not believe that additional investigation will lead to a finding that a defect related to motor vehicle safety exists in the subject vehicles. Therefore, in view of the need to allocate and prioritize NHTSA?s limited resources to best accomplish the agency's safety mission, the petition is denied. The denial of this petition does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take further action if warranted by the circumstances.For more information, see the Federal Register notice in the public file for this action (https://www.nhtsa.gov/recalls#vehicle, select NHTSA ID, enter: DP13001)The ODI reports cited above can be reviewed on-line (https://www.nhtsa.gov/recalls#vehicle) under the following NHTSA ID numbers:10407520, 10418710, 10429551, 10473654, 10478195, 10478053, 10437229, 10489425, 10510722, 10639984, 10648277, 10499778, 10712626, 10723196, 10787530, 10808124, 10838803, 11071646, 11098144, 11099507, 11102659, 11160767, 11192607, 11287550, 11287606

Steering:linkages

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, 6.Requested and examined complaint, claim, field report, service history, and warranty information from Toyota.ODI's review revealed that the petition vehicle had been recalled (Recall 06V188) to remedy a defect in the system identified in the petition with the remedy taking place prior to the failure that prompted the petition. Circumstances point to incorrect reassembly of the petitioner's vehicle by those who performed the recall remedy.ODI examined the issues raised by this petition to identify any related safety defect trend in the general subject vehicle population.That review identified a low rate of related consumer complaints (twenty-five over a eight year period from a population of over 600,000 vehicles) and no pattern that would identify either a safety defect not already covered by the two existing steering safety recalls by Toyota or a systematic problem with either recall remedy.Based on this evaluation, ODI does not believe that additional investigation will lead to a finding that a defect related to motor vehicle safety exists in the subject vehicles. Therefore, in view of the need to allocate and prioritize NHTSA?s limited resources to best accomplish the agency's safety mission, the petition is denied. The denial of this petition does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take further action if warranted by the circumstances.For more information, see the Federal Register notice in the public file for this action (https://www.nhtsa.gov/recalls#vehicle, select NHTSA ID, enter: DP13001)The ODI reports cited above can be reviewed on-line (https://www.nhtsa.gov/recalls#vehicle) under the following NHTSA ID numbers:10407520, 10418710, 10429551, 10473654, 10478195, 10478053, 10437229, 10489425, 10510722, 10639984, 10648277, 10499778, 10712626, 10723196, 10787530, 10808124, 10838803, 11071646, 11098144, 11099507, 11102659, 11160767, 11192607, 11287550, 11287606

Steering

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, 6.Requested and examined complaint, claim, field report, service history, and warranty information from Toyota.ODI's review revealed that the petition vehicle had been recalled (Recall 06V188) to remedy a defect in the system identified in the petition with the remedy taking place prior to the failure that prompted the petition. Circumstances point to incorrect reassembly of the petitioner's vehicle by those who performed the recall remedy.ODI examined the issues raised by this petition to identify any related safety defect trend in the general subject vehicle population.That review identified a low rate of related consumer complaints (twenty-five over a eight year period from a population of over 600,000 vehicles) and no pattern that would identify either a safety defect not already covered by the two existing steering safety recalls by Toyota or a systematic problem with either recall remedy.Based on this evaluation, ODI does not believe that additional investigation will lead to a finding that a defect related to motor vehicle safety exists in the subject vehicles. Therefore, in view of the need to allocate and prioritize NHTSA?s limited resources to best accomplish the agency's safety mission, the petition is denied. The denial of this petition does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take further action if warranted by the circumstances.For more information, see the Federal Register notice in the public file for this action (https://www.nhtsa.gov/recalls#vehicle, select NHTSA ID, enter: DP13001)The ODI reports cited above can be reviewed on-line (https://www.nhtsa.gov/recalls#vehicle) under the following NHTSA ID numbers:10407520, 10418710, 10429551, 10473654, 10478195, 10478053, 10437229, 10489425, 10510722, 10639984, 10648277, 10499778, 10712626, 10723196, 10787530, 10808124, 10838803, 11071646, 11098144, 11099507, 11102659, 11160767, 11192607, 11287550, 11287606

PE05029 · Engine Stalling

Opened May 31, 2005 · Closed Oct 12, 2005

Status: closed (inferred from source dates) · Engine And Engine Cooling; Engine And Engine Cooling:engine; Unknown Or Other

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 CONSUMERS REPORTED THAT THEY WERE ABLE TO RESTART THE VEHICLE EITHER IMMEDIATELY OR AFTER ALLOWING THE VEHICLE SIT FOR A SHORT TIME, WHEREAS OTHERS REPORTED THAT THEY HAD THEIR VEHICLE TOWED.DURING PE05-029, ADDITIONAL FAILURE DATA WAS IDENTIFIED AS NOTED IN THE FAILURE REPORT SUMMARY ABOVE.THE COMPLAINT DATA REPRESENTS INCIDENTS WHERE ENGINE STALLING WAS ALLEGED OR WHERE THE VEHICLE WAS ALLEGED TO HAVE ONE OF THE VARIOUS CONDITIONS THAT CAUSES THE GAS ENGINE TO STALL.IN ITS AUGUST 26, 2005 RESPONSE TO ODI'S INFORMATION REQUEST, TOYOTA IDENTIFIED VARIOUS CONDITIONS THAT COULD CAUSE THE SUBJECT VEHICLES TO EXPERIENCE A GAS ENGINE STALL.IF THIS HAPPENS, THE DRIVER IS ALERTED BY AN AUDIBLE SOUND AND VARIOUS WARNING LIGHTS.THE VEHICLE WILL CONTINUE TO OPERATE IN THE ELECTRIC MODE AND THE ELECTRICALLY-POWERED BRAKE AND STEERING OPERATION WILL CONTINUE TO FUNCTION NORMALLY. ANALYSIS OF THE WARRANTY DATA INDICATED THAT OVER 97% OF VEHICLES EXPERIENCING A GAS ENGINE STALL RESULTED FROM AN ISSUE WITH THE PROGRAM LOGIC IN THE ELECTRONIC CONTROL MODULE (ECM) SYSTEM, WHICH MAY CAUSE THE ECM SYSTEM TO NOT START THE GAS ENGINE WHEN REQUIRED.AS A RESULT, THE VEHICLE WILL ENTER THE LIMITED OPERATION MODE DESCRIBED ABOVE.THE MAJORITY OF THE ODI COMPLAINTS ALSO INDICATED THAT THE DRIVER EXPERIENCED THIS CONDITION IN CONJUNCTION WITH THE ENGINE STALL. DURING OCTOBER 2005, TOYOTA INFORMED ODI THAT IT WOULD INITIATE A SPECIAL SERVICE CAMPAIGN (SSC) TO REPROGRAM THE ECM SOFTWARE ON APPROXIMATELY 75,000 MY 2004 AND EARLY 2005 SUBJECT VEHICLES TO ADDRESS THE GAS ENGINE STALLING CONDITION.DURING THIS SSC, DEALERS WILL ALSO APPLY SPECIAL DIELECTRIC GREASE TO A TRANSAXLE CONNECTOR TO PREVENT WATER INTRUSION WHICH MAY ALSO CAUSE SIMILAR LIMITED OPERATION CONDITIONS.BASED ON ODI'S ANALYSIS, THIS REMEDY SHOULD ADDRESS MOST OF THE INCIDENTS RESULTING IN A LIMITED OPERATION MODE.GIVEN THESE CIRCUMSTANCES, FURTHER USE OF THE AGENCY RESOURCES IN THIS MATTER DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.

Additional source detail variants (3)

Engine And Engine Cooling:engine

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 CONSUMERS REPORTED THAT THEY WERE ABLE TO RESTART THE VEHICLE EITHER IMMEDIATELY OR AFTER ALLOWING THE VEHICLE SIT FOR A SHORT TIME, WHEREAS OTHERS REPORTED THAT THEY HAD THEIR VEHICLE TOWED.DURING PE05-029, ADDITIONAL FAILURE DATA WAS IDENTIFIED AS NOTED IN THE FAILURE REPORT SUMMARY ABOVE.THE COMPLAINT DATA REPRESENTS INCIDENTS WHERE ENGINE STALLING WAS ALLEGED OR WHERE THE VEHICLE WAS ALLEGED TO HAVE ONE OF THE VARIOUS CONDITIONS THAT CAUSES THE GAS ENGINE TO STALL.IN ITS AUGUST 26, 2005 RESPONSE TO ODI'S INFORMATION REQUEST, TOYOTA IDENTIFIED VARIOUS CONDITIONS THAT COULD CAUSE THE SUBJECT VEHICLES TO EXPERIENCE A GAS ENGINE STALL.IF THIS HAPPENS, THE DRIVER IS ALERTED BY AN AUDIBLE SOUND AND VARIOUS WARNING LIGHTS.THE VEHICLE WILL CONTINUE TO OPERATE IN THE ELECTRIC MODE AND THE ELECTRICALLY-POWERED BRAKE AND STEERING OPERATION WILL CONTINUE TO FUNCTION NORMALLY. ANALYSIS OF THE WARRANTY DATA INDICATED THAT OVER 97% OF VEHICLES EXPERIENCING A GAS ENGINE STALL RESULTED FROM AN ISSUE WITH THE PROGRAM LOGIC IN THE ELECTRONIC CONTROL MODULE (ECM) SYSTEM, WHICH MAY CAUSE THE ECM SYSTEM TO NOT START THE GAS ENGINE WHEN REQUIRED.AS A RESULT, THE VEHICLE WILL ENTER THE LIMITED OPERATION MODE DESCRIBED ABOVE.THE MAJORITY OF THE ODI COMPLAINTS ALSO INDICATED THAT THE DRIVER EXPERIENCED THIS CONDITION IN CONJUNCTION WITH THE ENGINE STALL. DURING OCTOBER 2005, TOYOTA INFORMED ODI THAT IT WOULD INITIATE A SPECIAL SERVICE CAMPAIGN (SSC) TO REPROGRAM THE ECM SOFTWARE ON APPROXIMATELY 75,000 MY 2004 AND EARLY 2005 SUBJECT VEHICLES TO ADDRESS THE GAS ENGINE STALLING CONDITION.DURING THIS SSC, DEALERS WILL ALSO APPLY SPECIAL DIELECTRIC GREASE TO A TRANSAXLE CONNECTOR TO PREVENT WATER INTRUSION WHICH MAY ALSO CAUSE SIMILAR LIMITED OPERATION CONDITIONS.BASED ON ODI'S ANALYSIS, THIS REMEDY SHOULD ADDRESS MOST OF THE INCIDENTS RESULTING IN A LIMITED OPERATION MODE.GIVEN THESE CIRCUMSTANCES, FURTHER USE OF THE AGENCY RESOURCES IN THIS MATTER DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.

Engine And Engine Cooling

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 CONSUMERS REPORTED THAT THEY WERE ABLE TO RESTART THE VEHICLE EITHER IMMEDIATELY OR AFTER ALLOWING THE VEHICLE SIT FOR A SHORT TIME, WHEREAS OTHERS REPORTED THAT THEY HAD THEIR VEHICLE TOWED.DURING PE05-029, ADDITIONAL FAILURE DATA WAS IDENTIFIED AS NOTED IN THE FAILURE REPORT SUMMARY ABOVE.THE COMPLAINT DATA REPRESENTS INCIDENTS WHERE ENGINE STALLING WAS ALLEGED OR WHERE THE VEHICLE WAS ALLEGED TO HAVE ONE OF THE VARIOUS CONDITIONS THAT CAUSES THE GAS ENGINE TO STALL.IN ITS AUGUST 26, 2005 RESPONSE TO ODI'S INFORMATION REQUEST, TOYOTA IDENTIFIED VARIOUS CONDITIONS THAT COULD CAUSE THE SUBJECT VEHICLES TO EXPERIENCE A GAS ENGINE STALL.IF THIS HAPPENS, THE DRIVER IS ALERTED BY AN AUDIBLE SOUND AND VARIOUS WARNING LIGHTS.THE VEHICLE WILL CONTINUE TO OPERATE IN THE ELECTRIC MODE AND THE ELECTRICALLY-POWERED BRAKE AND STEERING OPERATION WILL CONTINUE TO FUNCTION NORMALLY. ANALYSIS OF THE WARRANTY DATA INDICATED THAT OVER 97% OF VEHICLES EXPERIENCING A GAS ENGINE STALL RESULTED FROM AN ISSUE WITH THE PROGRAM LOGIC IN THE ELECTRONIC CONTROL MODULE (ECM) SYSTEM, WHICH MAY CAUSE THE ECM SYSTEM TO NOT START THE GAS ENGINE WHEN REQUIRED.AS A RESULT, THE VEHICLE WILL ENTER THE LIMITED OPERATION MODE DESCRIBED ABOVE.THE MAJORITY OF THE ODI COMPLAINTS ALSO INDICATED THAT THE DRIVER EXPERIENCED THIS CONDITION IN CONJUNCTION WITH THE ENGINE STALL. DURING OCTOBER 2005, TOYOTA INFORMED ODI THAT IT WOULD INITIATE A SPECIAL SERVICE CAMPAIGN (SSC) TO REPROGRAM THE ECM SOFTWARE ON APPROXIMATELY 75,000 MY 2004 AND EARLY 2005 SUBJECT VEHICLES TO ADDRESS THE GAS ENGINE STALLING CONDITION.DURING THIS SSC, DEALERS WILL ALSO APPLY SPECIAL DIELECTRIC GREASE TO A TRANSAXLE CONNECTOR TO PREVENT WATER INTRUSION WHICH MAY ALSO CAUSE SIMILAR LIMITED OPERATION CONDITIONS.BASED ON ODI'S ANALYSIS, THIS REMEDY SHOULD ADDRESS MOST OF THE INCIDENTS RESULTING IN A LIMITED OPERATION MODE.GIVEN THESE CIRCUMSTANCES, FURTHER USE OF THE AGENCY RESOURCES IN THIS MATTER DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.

Unknown Or Other

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 CONSUMERS REPORTED THAT THEY WERE ABLE TO RESTART THE VEHICLE EITHER IMMEDIATELY OR AFTER ALLOWING THE VEHICLE SIT FOR A SHORT TIME, WHEREAS OTHERS REPORTED THAT THEY HAD THEIR VEHICLE TOWED.DURING PE05-029, ADDITIONAL FAILURE DATA WAS IDENTIFIED AS NOTED IN THE FAILURE REPORT SUMMARY ABOVE.THE COMPLAINT DATA REPRESENTS INCIDENTS WHERE ENGINE STALLING WAS ALLEGED OR WHERE THE VEHICLE WAS ALLEGED TO HAVE ONE OF THE VARIOUS CONDITIONS THAT CAUSES THE GAS ENGINE TO STALL.IN ITS AUGUST 26, 2005 RESPONSE TO ODI'S INFORMATION REQUEST, TOYOTA IDENTIFIED VARIOUS CONDITIONS THAT COULD CAUSE THE SUBJECT VEHICLES TO EXPERIENCE A GAS ENGINE STALL.IF THIS HAPPENS, THE DRIVER IS ALERTED BY AN AUDIBLE SOUND AND VARIOUS WARNING LIGHTS.THE VEHICLE WILL CONTINUE TO OPERATE IN THE ELECTRIC MODE AND THE ELECTRICALLY-POWERED BRAKE AND STEERING OPERATION WILL CONTINUE TO FUNCTION NORMALLY. ANALYSIS OF THE WARRANTY DATA INDICATED THAT OVER 97% OF VEHICLES EXPERIENCING A GAS ENGINE STALL RESULTED FROM AN ISSUE WITH THE PROGRAM LOGIC IN THE ELECTRONIC CONTROL MODULE (ECM) SYSTEM, WHICH MAY CAUSE THE ECM SYSTEM TO NOT START THE GAS ENGINE WHEN REQUIRED.AS A RESULT, THE VEHICLE WILL ENTER THE LIMITED OPERATION MODE DESCRIBED ABOVE.THE MAJORITY OF THE ODI COMPLAINTS ALSO INDICATED THAT THE DRIVER EXPERIENCED THIS CONDITION IN CONJUNCTION WITH THE ENGINE STALL. DURING OCTOBER 2005, TOYOTA INFORMED ODI THAT IT WOULD INITIATE A SPECIAL SERVICE CAMPAIGN (SSC) TO REPROGRAM THE ECM SOFTWARE ON APPROXIMATELY 75,000 MY 2004 AND EARLY 2005 SUBJECT VEHICLES TO ADDRESS THE GAS ENGINE STALLING CONDITION.DURING THIS SSC, DEALERS WILL ALSO APPLY SPECIAL DIELECTRIC GREASE TO A TRANSAXLE CONNECTOR TO PREVENT WATER INTRUSION WHICH MAY ALSO CAUSE SIMILAR LIMITED OPERATION CONDITIONS.BASED ON ODI'S ANALYSIS, THIS REMEDY SHOULD ADDRESS MOST OF THE INCIDENTS RESULTING IN A LIMITED OPERATION MODE.GIVEN THESE CIRCUMSTANCES, FURTHER USE OF THE AGENCY RESOURCES IN THIS MATTER DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.