DRIVER SIDE HEADLIGHT WHEN TURNED ON RANDOMLY GOES OFF I HAVE TO TURN THE LIGHTS OFF AGAIN AND THEN IT TURNS BACK ON BUT A LOT OF TIMES IT'LL KEEP TURNING OFF. IT'S BEEN DOING THIS FOR YEARS. I RARELY DRIVE MY CAR ONLY HAS 35K MILES ON IT.
2007 Toyota Prius
Owner reports · Recalls · Investigations
More warning signs than most Prius years
Owner complaints for the 2007 Toyota Prius are substantially higher than the model-year median of 164.
About this comparison →How this year compares
Owner complaints by model year
Compare all Prius years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
1,721 reports with mileage · 282 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 1,060 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 248 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 184 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Exterior Lighting complaints
1,060 reports2007 PRIUS 144K MILES WHEN PROBLEM 1ST OCCURRED. CAR SERVICED REGULARLY - OIL CHANGED EVERY 3500 MILES. MASTER WARNING LIGHT WOULD COME ON RANDOMLY WHEN TURNING OR GOING UP/DOWN HILL AT HIGHWAY SPEEDS. COMPUTER DIAGNOSTICS RUN REPEATEDLY (AT TOYOTA AND AT LOCAL MECHANIC) NOTHING EVER FOUND. 12/2016 BROUGHT CAR TO TOYOTA…
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2007 PRIUS 144K MILES WHEN PROBLEM 1ST OCCURRED. CAR SERVICED REGULARLY - OIL CHANGED EVERY 3500 MILES. MASTER WARNING LIGHT WOULD COME ON RANDOMLY WHEN TURNING OR GOING UP/DOWN HILL AT HIGHWAY SPEEDS. COMPUTER DIAGNOSTICS RUN REPEATEDLY (AT TOYOTA AND AT LOCAL MECHANIC) NOTHING EVER FOUND. 12/2016 BROUGHT CAR TO TOYOTA SERVICE COULDN'T FIND ANYTHING INITIALLY. 2+ HOURS LATER TOLD OIL IS VERY LOW WHICH MADE NO SENSE; NO OIL SPOT IN GARAGE, CAR PASSED INSPECTION AND WASN'T DUE FOR AN OIL CHANGE . WAS TOLD THE 'OIL WARNING INDICATOR' WAS LIT DESPITE THE FACT THAT THE OIL WARNING LIGHT NEVER CAME ON. EVER. (OIL INDICATOR SHOULD COME ON WHEN CAR IS STARTED AND REMAIN ON -BRIEFLY IF THE OIL IS LOW. IT DOES NOT.) TOLD TECH THAT ONLY THE MASTER LIGHT COMES ON AND THE CIRCUMSTANCES. NEVER GIVEN AN EXPLANATION. PROBLEM HAS GOTTEN PROGRESSIVELY WORSE. MASTER INDICATOR ONLY COMES ON WHEN THERE IS ALMOST NO OIL. LAST TIME THIS HAPPENED I ADDED 4 QTS. OF OIL, DROVE 687 MILES AND HAD TO ADD ANOTHER 4 QTS. AT THIS POINT I HAVE TO CHECK THE OIL EVERY TIME I GET INTO THE CAR.
THE HEADLIGHTS KEEP BURNING OUT AND STOPS WORKING WITHOUT WARNING. *TR
HID LIGHTS GOING OFF WHILE DRIVING. ONE LIGHT INTERMITTENTLY GOING ON AND OFF. TURNING LIGHT SWITCH OFF AND THEN ON AGAIN TURNS THEM BACK ON. HAVE SEEN ONLINE NUMEROUS REPORTS OF THIS PROBEL
FOR A FEW MONTHS, THE LEFT HAND SIDE FRONT HEADLIGHT HAS GONE OUT, IF I TURN THE LIGHTS OFF AND THEN BACK ON AGAIN, IT COMES BACK ON. HOWEVER LAST NIGHT, WHILE DRIVING ON A DARK NC HIGHWAY BOTH LIGHTS WENT OUT. THEY CAME BACK ON WHEN I TURNED THE LIGHTS ON AN OFF AGAIN. THIS HAPPENED TWO MORE TIMES. IT IS CLEARLY A SAFETY IS…
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FOR A FEW MONTHS, THE LEFT HAND SIDE FRONT HEADLIGHT HAS GONE OUT, IF I TURN THE LIGHTS OFF AND THEN BACK ON AGAIN, IT COMES BACK ON. HOWEVER LAST NIGHT, WHILE DRIVING ON A DARK NC HIGHWAY BOTH LIGHTS WENT OUT. THEY CAME BACK ON WHEN I TURNED THE LIGHTS ON AN OFF AGAIN. THIS HAPPENED TWO MORE TIMES. IT IS CLEARLY A SAFETY ISSUE THAT I SEE MANY OTHER PRIUS OWNERS EXPERIENCE. IT IS ENTIRELY POSSIBLE BOTH LIGHTS HAVE BEEN GOING OUT FOR SOME TIME, SINCE DRIVING ON DARK COUNTRY HIGHWAYS AT 70 MPH IS NOT SOMETHING I REGULARLY DO.
HEADLIGHTS INTERMITTENTLY FAIL. SOMETIMES ONE HEADLIGHT WILL GO OUT AND OTHER TIMES BOTH. SO FAR, IF I DETECT ONE OR BOTH HEADLIGHTS ARE OUT, TURNING THE HEADLIGHT SWITCH OFF AND BACK ON WILL CORRECT THE PROBLEM. DEPENDING ON STREET LIGHTING, I AM NOT ALWAYS ABLE TO DETECT IF THE HEADLIGHTS ARE OFF UNTIL ANOTHER CAR FLASHES TO L…
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HEADLIGHTS INTERMITTENTLY FAIL. SOMETIMES ONE HEADLIGHT WILL GO OUT AND OTHER TIMES BOTH. SO FAR, IF I DETECT ONE OR BOTH HEADLIGHTS ARE OUT, TURNING THE HEADLIGHT SWITCH OFF AND BACK ON WILL CORRECT THE PROBLEM. DEPENDING ON STREET LIGHTING, I AM NOT ALWAYS ABLE TO DETECT IF THE HEADLIGHTS ARE OFF UNTIL ANOTHER CAR FLASHES TO LET ME KNOW OR I ENTER A DARK ROADWAY WHERE IT BECOMES OBVIOUS.
SIMILAR TO THIS COMPLAINT (NHTSA ID NUMBER:11268053) I HAVE BEEN STRUGGLING TO KEEP BOTH OF MY HEADLIGHTS WORKING FOR OVER A YEAR NOW. I HAVE TRIED REPLACING THE LIGHTBULBS AND THE BALLASTS WITHOUT SUCCESS. BOTH THE REGULAR LIGHTS AND THE HIGH BEAMS TURN OFF ABOUT EVERY COUPLE OF MINUTES AND SOMETIMES FASTER. I DRIVE WITH ONE HA…
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SIMILAR TO THIS COMPLAINT (NHTSA ID NUMBER:11268053) I HAVE BEEN STRUGGLING TO KEEP BOTH OF MY HEADLIGHTS WORKING FOR OVER A YEAR NOW. I HAVE TRIED REPLACING THE LIGHTBULBS AND THE BALLASTS WITHOUT SUCCESS. BOTH THE REGULAR LIGHTS AND THE HIGH BEAMS TURN OFF ABOUT EVERY COUPLE OF MINUTES AND SOMETIMES FASTER. I DRIVE WITH ONE HAND ON THE SWITCH AND CONSTANTLY TURN THEM OFF THEN BACK ON IN ORDER TO GET WHERE I AM GOING. PLEASE HELP! I AM INTENDING TO GO TO THE TOYOTA DEALER BUT IT IS EXPENSIVE AND I BELIEVE THIS IS A FLAW IN THE VEHICLE. THIS PROBLEM OCCURS REGARDLESS OF WHETHER THE CAR IS IN MOTION OR NOT.
WHILE DRIVING PASSENGER SIDE HEADLIGHT WENT OUT. AFTER SEVERAL TRIES OF TURNING LIGHTS ON AND OFF, THE HEADLIGHT STAYED ON.IT CUTS OUT AT DIFFICULT TIMES LIKE DRIVING ON HIGHWAY. WORRIED POLICE MAY STOP ME. HAVE TRIED SEVERAL FIXES LIKE NEW HEADLIGHT ASSEMBLY, ETC.
WHILE DRIVING AT NIGHT, THE HEADLIGHTS WILL RANDOMLY TURN OFF. THIS IS DANGEROUS AND SCARY. PLEASE HELP!
ONE HEADLIGHT ON MY CAR KEEPS SHUTTING OFF, WHILE THE OTHER IS FINE. I AM ABLE TO "FIX" THE ISSUE BY TURNING MY HEADLIGHTS OFF AND THEN TURNING THEM ON AGAIN. DEALERS INITIALLY TOLD ME IT WAS BECAUSE THE BULB BURNED OUT, BUT I REPLACED BOTH AT THE SAME TIME, AND IT'S ALWAYS THE DRIVER'S SIDE BULB THAT "BURNS OUT." UPON FURTH…
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ONE HEADLIGHT ON MY CAR KEEPS SHUTTING OFF, WHILE THE OTHER IS FINE. I AM ABLE TO "FIX" THE ISSUE BY TURNING MY HEADLIGHTS OFF AND THEN TURNING THEM ON AGAIN. DEALERS INITIALLY TOLD ME IT WAS BECAUSE THE BULB BURNED OUT, BUT I REPLACED BOTH AT THE SAME TIME, AND IT'S ALWAYS THE DRIVER'S SIDE BULB THAT "BURNS OUT." UPON FURTHER REVIEW ON PUBLIC FORUMS, IT APPEARS THE BULB IS PERFECTLY FINE AND THERE'S SOME TYPE OF ELECTRICAL ISSUE/CONNECTION PROBLEM THAT CAUSES PROBLEMS WITH THE BULB. THIS HAPPENS WHEN THE VEHICLE IS ON AND IN-MOTION ON ANY STREET.
Official recalls
412V536000 · 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.
10V036000 · Equipment:other:labels
Feb 3, 2010
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.
Consequence & remedy
Consequence: A DRIVER MAY OVERLOAD A VEHICLE WHICH MAY INCREASE THE RISK OF A CRASH.
Remedy: DEALERS WILL MAIL TO CONSUMERS THE CORRECTED LABEL OR THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS TO INSTALL THE LABEL FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MAY 27, 2010. OWNERS MAY CONTACT SOUTHEAST TOYOTA AT 1-800-301-6859.
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.
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
3DP22005 · 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
PE09019 · Headlight Failure
Opened Apr 17, 2009 · Closed Aug 27, 2009
Status: closed (inferred from source dates) · Exterior Lighting; Exterior Lighting:headlights
ODI OPENED THIS INVESTIGATION AFTER RECEIVING REPORTS THAT BOTH HEADLIGHTS WOULD GO OUT, OR EXTINGUISH WHILE DRIVING.THE SUBJECT VEHICLES ARE EQUIPPED WITH HIGH INTENSITY DISCHARGE (HID) HEADLAMPS THAT OPERATE ON INDEPENDENT LAMPS AND ECU'S (ELECTRONIC CONTROL UNITS) FOR EACH HEADLIGHT, MEANING THAT EACH HEADLIGHT RUNS INDEPENDENTLY OF THE OTHER, AND A FAILURE IN ONE LAMP OR ECU DOES NOT NECESSARILY RESULT IN A FAILURE OF THE OTHER.DURING THE INVESTIGATION, A RANDOM SAMPLE OF FORTY CONSUMERS WAS CONTACTED BY ODI IN A TELEPHONE SURVEY TO VERIFY THEIR EXPERIENCES.THE CONSUMERS STATED IN COMPLAINTS TO TOYOTA THAT BOTH HEADLIGHTS FAILED AT THE SAME TIME.ODI DISCOVERED THROUGH TALKING WITH THESE COMPLAINANTS THAT IN FACT ONE HEADLIGHT WOULD BEGIN TO FLICKER AND THEN CUT OFF.THE OTHER HEADLIGHT WOULD STILL BE OPERATIONAL.IN A FEW CASES WHERE NO ACTION WAS TAKEN, SOME COMPLAINANTS STATED THAT AFTER A FEW MONTHS BOTH HEADLAMPS WOULD BEGIN TO FAIL RESULTING IN NO HEADLIGHTS; HOWEVER NONE REPORTED THAT BOTH LAMPS FAILED SIMULTANEOUSLY.COMPLAINANTS ALSO STATED THAT THEY COULD TOGGLE THE HEADLAMP SWITCH ON AND OFF TO TEMPORARILY RESTORE LIGHTING WHEN THIS CONDITION OCCURRED, EVEN IN CASES WERE BOTH HEADLAMPS WERE EXTINGUISHED.THE RESULTS OF THIS SURVEY ARE LARGELY CONSISTENT WITH ODI'S ASSESSMENT OF THE REPORTS AND WARRANTY DATA.TOYOTA SUBMITTED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER THAT, GENERALLY SPEAKING, ONLY ONE LAMP FAILED AT A TIME, AND THAT TOGGLING THE SWITCH RESTORED THE LAMP.TOYOTA REQUESTED A MEETING WITH ODI AND ON AUGUST 6, 2009, PRESENTED THEIR ASSESSMENT OF HEADLAMP FAILURE.TOYOTA CONFIRMED THAT A HEADLAMP COULD EXTINGUISH WHILE DRIVING DUE TO A BULB FAILURE, AND THAT IT COULD BE TEMPORARILY RESTORED BY TURNING THE HEADLIGHT SWITCH ON AND OFF, AND THAT SIMULTANEOUS FAILURE OF BOTH HEADLAMPS WAS RARE AND UNLIKELY.TOYOTA ALSO BRIEFLY DISCUSSED THEIR INTENTION TO CONDUCT A CUSTOMER SERVICE CAMPAIGN TO ADDRESS CONSUMER DISSATISFACTION WITH HID BULB FAILURES.SINCE THERE IS STILL ONE HEADLIGHT OPERATING WHEN THE OTHER ONE CUTS OFF, THERE IS STILL LIGHTING AVAILABLE TO GET THE VEHICLE TO A REPAIR FACILITY.THUS, A SAFETY DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES 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 TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Additional source detail variants (2)
Exterior Lighting:headlights
ODI OPENED THIS INVESTIGATION AFTER RECEIVING REPORTS THAT BOTH HEADLIGHTS WOULD GO OUT, OR EXTINGUISH WHILE DRIVING.THE SUBJECT VEHICLES ARE EQUIPPED WITH HIGH INTENSITY DISCHARGE (HID) HEADLAMPS THAT OPERATE ON INDEPENDENT LAMPS AND ECU'S (ELECTRONIC CONTROL UNITS) FOR EACH HEADLIGHT, MEANING THAT EACH HEADLIGHT RUNS INDEPENDENTLY OF THE OTHER, AND A FAILURE IN ONE LAMP OR ECU DOES NOT NECESSARILY RESULT IN A FAILURE OF THE OTHER.DURING THE INVESTIGATION, A RANDOM SAMPLE OF FORTY CONSUMERS WAS CONTACTED BY ODI IN A TELEPHONE SURVEY TO VERIFY THEIR EXPERIENCES.THE CONSUMERS STATED IN COMPLAINTS TO TOYOTA THAT BOTH HEADLIGHTS FAILED AT THE SAME TIME.ODI DISCOVERED THROUGH TALKING WITH THESE COMPLAINANTS THAT IN FACT ONE HEADLIGHT WOULD BEGIN TO FLICKER AND THEN CUT OFF.THE OTHER HEADLIGHT WOULD STILL BE OPERATIONAL.IN A FEW CASES WHERE NO ACTION WAS TAKEN, SOME COMPLAINANTS STATED THAT AFTER A FEW MONTHS BOTH HEADLAMPS WOULD BEGIN TO FAIL RESULTING IN NO HEADLIGHTS; HOWEVER NONE REPORTED THAT BOTH LAMPS FAILED SIMULTANEOUSLY.COMPLAINANTS ALSO STATED THAT THEY COULD TOGGLE THE HEADLAMP SWITCH ON AND OFF TO TEMPORARILY RESTORE LIGHTING WHEN THIS CONDITION OCCURRED, EVEN IN CASES WERE BOTH HEADLAMPS WERE EXTINGUISHED.THE RESULTS OF THIS SURVEY ARE LARGELY CONSISTENT WITH ODI'S ASSESSMENT OF THE REPORTS AND WARRANTY DATA.TOYOTA SUBMITTED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER THAT, GENERALLY SPEAKING, ONLY ONE LAMP FAILED AT A TIME, AND THAT TOGGLING THE SWITCH RESTORED THE LAMP.TOYOTA REQUESTED A MEETING WITH ODI AND ON AUGUST 6, 2009, PRESENTED THEIR ASSESSMENT OF HEADLAMP FAILURE.TOYOTA CONFIRMED THAT A HEADLAMP COULD EXTINGUISH WHILE DRIVING DUE TO A BULB FAILURE, AND THAT IT COULD BE TEMPORARILY RESTORED BY TURNING THE HEADLIGHT SWITCH ON AND OFF, AND THAT SIMULTANEOUS FAILURE OF BOTH HEADLAMPS WAS RARE AND UNLIKELY.TOYOTA ALSO BRIEFLY DISCUSSED THEIR INTENTION TO CONDUCT A CUSTOMER SERVICE CAMPAIGN TO ADDRESS CONSUMER DISSATISFACTION WITH HID BULB FAILURES.SINCE THERE IS STILL ONE HEADLIGHT OPERATING WHEN THE OTHER ONE CUTS OFF, THERE IS STILL LIGHTING AVAILABLE TO GET THE VEHICLE TO A REPAIR FACILITY.THUS, A SAFETY DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES 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 TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Exterior Lighting
ODI OPENED THIS INVESTIGATION AFTER RECEIVING REPORTS THAT BOTH HEADLIGHTS WOULD GO OUT, OR EXTINGUISH WHILE DRIVING.THE SUBJECT VEHICLES ARE EQUIPPED WITH HIGH INTENSITY DISCHARGE (HID) HEADLAMPS THAT OPERATE ON INDEPENDENT LAMPS AND ECU'S (ELECTRONIC CONTROL UNITS) FOR EACH HEADLIGHT, MEANING THAT EACH HEADLIGHT RUNS INDEPENDENTLY OF THE OTHER, AND A FAILURE IN ONE LAMP OR ECU DOES NOT NECESSARILY RESULT IN A FAILURE OF THE OTHER.DURING THE INVESTIGATION, A RANDOM SAMPLE OF FORTY CONSUMERS WAS CONTACTED BY ODI IN A TELEPHONE SURVEY TO VERIFY THEIR EXPERIENCES.THE CONSUMERS STATED IN COMPLAINTS TO TOYOTA THAT BOTH HEADLIGHTS FAILED AT THE SAME TIME.ODI DISCOVERED THROUGH TALKING WITH THESE COMPLAINANTS THAT IN FACT ONE HEADLIGHT WOULD BEGIN TO FLICKER AND THEN CUT OFF.THE OTHER HEADLIGHT WOULD STILL BE OPERATIONAL.IN A FEW CASES WHERE NO ACTION WAS TAKEN, SOME COMPLAINANTS STATED THAT AFTER A FEW MONTHS BOTH HEADLAMPS WOULD BEGIN TO FAIL RESULTING IN NO HEADLIGHTS; HOWEVER NONE REPORTED THAT BOTH LAMPS FAILED SIMULTANEOUSLY.COMPLAINANTS ALSO STATED THAT THEY COULD TOGGLE THE HEADLAMP SWITCH ON AND OFF TO TEMPORARILY RESTORE LIGHTING WHEN THIS CONDITION OCCURRED, EVEN IN CASES WERE BOTH HEADLAMPS WERE EXTINGUISHED.THE RESULTS OF THIS SURVEY ARE LARGELY CONSISTENT WITH ODI'S ASSESSMENT OF THE REPORTS AND WARRANTY DATA.TOYOTA SUBMITTED IN RESPONSE TO ODI'S INFORMATION REQUEST LETTER THAT, GENERALLY SPEAKING, ONLY ONE LAMP FAILED AT A TIME, AND THAT TOGGLING THE SWITCH RESTORED THE LAMP.TOYOTA REQUESTED A MEETING WITH ODI AND ON AUGUST 6, 2009, PRESENTED THEIR ASSESSMENT OF HEADLAMP FAILURE.TOYOTA CONFIRMED THAT A HEADLAMP COULD EXTINGUISH WHILE DRIVING DUE TO A BULB FAILURE, AND THAT IT COULD BE TEMPORARILY RESTORED BY TURNING THE HEADLIGHT SWITCH ON AND OFF, AND THAT SIMULTANEOUS FAILURE OF BOTH HEADLAMPS WAS RARE AND UNLIKELY.TOYOTA ALSO BRIEFLY DISCUSSED THEIR INTENTION TO CONDUCT A CUSTOMER SERVICE CAMPAIGN TO ADDRESS CONSUMER DISSATISFACTION WITH HID BULB FAILURES.SINCE THERE IS STILL ONE HEADLIGHT OPERATING WHEN THE OTHER ONE CUTS OFF, THERE IS STILL LIGHTING AVAILABLE TO GET THE VEHICLE TO A REPAIR FACILITY.THUS, A SAFETY DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES 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 TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
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