IllustrationHello, I am the Buyer of the subject Vehicle, Upon doing my research, I found out several reports stating that The subject vehicle's 2.4L engine has manufacturing defect, that causes Head Bolts to get stripped/melt down in to oil causing Engine failures and Life threating risk in the middle of the road.
2004 Toyota Highlander
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2004 Toyota Highlander do not stand out strongly from the model-year median of 186.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Highlander 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
690–25K
4325–50K
3750–75K
3075–100K
41100–150K
15150K+
235 reports with mileage · 51 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.
- Power Train. Review the 58 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 40 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Steering. Review the 35 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
32 crash reports3 fire reports16 injury reports
What owners actually said
286 reportsMy car malfunctioned my tire locked up while I was driving on the high way causing me to spin out of control and skid all the way into a guard rail totalled my car out and not one air bag went off
The passenger airbag occupancy sensor in my car has stopped sensing a passenger has been stuck on "OFF" for the past 2-6 months (I believe) even when an adult is sitting in the seat. I don't know exactly when this problem began because there was never any warning light or error message which is a massive safety oversight since …
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The passenger airbag occupancy sensor in my car has stopped sensing a passenger has been stuck on "OFF" for the past 2-6 months (I believe) even when an adult is sitting in the seat. I don't know exactly when this problem began because there was never any warning light or error message which is a massive safety oversight since I could have been in accident with no knowledge that it wasn't working properly. The car is currently at the dealership and they are telling me it's $1300 to replace the sensor and that there is no way to bypass the sensor and just have it "ON" for the safety of my passenger. There is already a recall for this same system in newer Highlanders, but why is there no support for older Highlanders?
The contact owns a 2004 Toyota Highlander. The contact stated while driving at an undisclosed speed, the front bumper inadvertently detached. The vehicle was taken to an independent mechanic where it was determined that the front lower bumper covers had been attached with mounting tabs and that the bumper assembly had failed and…
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The contact owns a 2004 Toyota Highlander. The contact stated while driving at an undisclosed speed, the front bumper inadvertently detached. The vehicle was taken to an independent mechanic where it was determined that the front lower bumper covers had been attached with mounting tabs and that the bumper assembly had failed and needed to be replaced. The vehicle was not repaired. The contact was informed of an unknown recall. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was approximately 190,000.
TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE AND PRESSING TO BRAKE PEDAL, THE PEDAL FAILED TO RETURN TO THE IDLE POSITION. THE VEHICLE STABILITY CONTROL MESSAGE DISPLAYED ON THE INSTRUMENT PANEL AND THE VEHICLE FAILED TO EXCEED 40 MPH. THE VEHICLE WAS TOWED TO AN INDEPENDENT …
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TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT WHILE OPERATING THE VEHICLE AND PRESSING TO BRAKE PEDAL, THE PEDAL FAILED TO RETURN TO THE IDLE POSITION. THE VEHICLE STABILITY CONTROL MESSAGE DISPLAYED ON THE INSTRUMENT PANEL AND THE VEHICLE FAILED TO EXCEED 40 MPH. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE. THE VEHICLE WAS THEN DRIVEN TO THE LOCAL DEALER GROOVE TOYOTA LOCATED AT 5460 S BROADWAY, ENGLEWOOD, CO 80113 HOWEVER, THE CAUSE OF THE FAILURE WAS NOT YET DETERMINED. THE MANUFACTURER WAS NOT YET CONTACTED. THE FAILURE MILEAGE WAS 126,000.
WHILE TRAVELING THROUGH A HIGHWAY CONSTRUCTION ZONE MY CAR SUDDENLY BECAME HARD TO STEER, AND MY SPEED BECAME GREATER, TRIED TO (BREAK) DECELERATE THE CAR BEGAN SLIDING OUT OF CONTROL-PLOWING INTO THE ROAD CONSTRUCTION BARRIERS PART LODGED IN FRONT PASSENGER WINDSHIELD. THE CAR WENT THROUGH THE DITCH BECAME AIRBORNE THROUGH A RO…
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WHILE TRAVELING THROUGH A HIGHWAY CONSTRUCTION ZONE MY CAR SUDDENLY BECAME HARD TO STEER, AND MY SPEED BECAME GREATER, TRIED TO (BREAK) DECELERATE THE CAR BEGAN SLIDING OUT OF CONTROL-PLOWING INTO THE ROAD CONSTRUCTION BARRIERS PART LODGED IN FRONT PASSENGER WINDSHIELD. THE CAR WENT THROUGH THE DITCH BECAME AIRBORNE THROUGH A ROD IRON FENCE SHATTERED THE REAR SECOND-ROW RIGHT SIDE WINDOW SPUN OUT , AND CAME TO REST JUST FEET FROM THE SOME PILEINGS. THIS IS THE INFORMATION OF MY DAUGHTER WHOM IS AN OUT OF STATE COLLEGE SENIOR AND VERY SHAKEN UP FROM THIS ORDEAL, THIS HER STATEMENT TO THE BEST OF MY KNOWLEDGE. POSSIBLY THE PLACEMENT OF THE 🚧 COULD HAVE BEEN A CONTRIBUTOR, AND THE UNCONTROLLABLE ACCELERATION. VEHICLE WAS BOUGHT USED A YEAR AGO. CAN YOU HELP UP LEARN WHY?
TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. WHILE DRIVING VARIOUS LOW SPEEDS, THE VEHICLE ACCELERATED RAPIDLY WITHOUT WARNING. UPON APPLYING MINIMAL PRESSURE TO THE ACCELERATOR PEDAL, THE ACCELERATOR PEDAL BECAME STUCK AND THE CONTACT'S VEHICLE CRASHED INTO ANOTHER VEHICLE, A DUMPSTER, AND ALMOST STRUCK A GROUP OF CHILDREN BE…
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TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. WHILE DRIVING VARIOUS LOW SPEEDS, THE VEHICLE ACCELERATED RAPIDLY WITHOUT WARNING. UPON APPLYING MINIMAL PRESSURE TO THE ACCELERATOR PEDAL, THE ACCELERATOR PEDAL BECAME STUCK AND THE CONTACT'S VEHICLE CRASHED INTO ANOTHER VEHICLE, A DUMPSTER, AND ALMOST STRUCK A GROUP OF CHILDREN BEFORE COMING TO A STOP. IN AN ATTEMPT TO STOP THE VEHICLE, PRESSURE WAS APPLIED TO THE ACCELERATOR PEDAL AND THEN THE BRAKE PEDAL. THE VEHICLE FINALLY STOPPED AND WAS TURNED OFF. THE VEHICLE WAS ABLE TO BE DRIVEN TO THE CONTACT'S RESIDENCE. THE CONTACT STATED THAT THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS NOT FILED. THE CONTACT SUSTAINED SEVERE PAIN TO THE NECK AND BACK, WHICH REQUIRED MEDICAL ATTENTION. A DEALER AND THE MANUFACTURER WERE NOT MADE AWARE OF THE CRASH. THE VEHICLE WAS SUBJECT TO NHTSA CAMPAIGN NUMBER: 11V112000 (VEHICLE SPEED CONTROL). THE FAILURE MILEAGE WAS 170,000.
TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT THE FRONT DRIVER'S SIDE SEAT BELT ASSEMBLY MALFUNCTIONED AND THE FABRIC MATERIAL STRAP BECAME FRAYED AND SHREDDED AT THE BUCKLE LOCATION. THE CAUSE OF THE FAILURE WAS NOT DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE LOCAL DEALER (ATLANTIC TOYOTA IN LYNN, MASS…
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TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT THE FRONT DRIVER'S SIDE SEAT BELT ASSEMBLY MALFUNCTIONED AND THE FABRIC MATERIAL STRAP BECAME FRAYED AND SHREDDED AT THE BUCKLE LOCATION. THE CAUSE OF THE FAILURE WAS NOT DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE LOCAL DEALER (ATLANTIC TOYOTA IN LYNN, MASSACHUSETTS) AND MANUFACTURER WERE NOTIFIED, BUT NO ASSISTANCE WAS OFFERED. THE FAILURE MILEAGE WAS 150,000. *JS
THE TRANSFER CASE IS LEAKING AFTER ONLY 68000 MILES. THE LEAKING OIL DROPS OVER THE HEATED EXHAUST PIPE WHICH CAUSES FUME IN THE CABIN THROUGH AIR CONDITION AND FAN
TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. WHILE DRIVING VARIOUS SPEEDS, WHILE DEPRESSING THE BRAKE PEDAL, THE PEDAL TRAVELED TO THE FLOOR. THE TRACTION CONTROL, CHECK ENGINE, VSC, AND BRAKE INDICATORS ILLUMINATED. THE VEHICLE WAS SERVICED PER NHTSA CAMPAIGN NUMBER: 10V499000 (SERVICE BRAKES), BUT THE REMEDY FAILED TO REPAIR…
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TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. WHILE DRIVING VARIOUS SPEEDS, WHILE DEPRESSING THE BRAKE PEDAL, THE PEDAL TRAVELED TO THE FLOOR. THE TRACTION CONTROL, CHECK ENGINE, VSC, AND BRAKE INDICATORS ILLUMINATED. THE VEHICLE WAS SERVICED PER NHTSA CAMPAIGN NUMBER: 10V499000 (SERVICE BRAKES), BUT THE REMEDY FAILED TO REPAIR THE VEHICLE. THE CONTACT OBSERVED BRAKE FLUID LEAKING FROM THE VEHICLE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 157,489.
Official recalls
511V539000 · Engine And Engine Cooling
Nov 9, 2011
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2004 AVALON VEHICLES; 2004 AND 2005 CAMRY, CAMRY SOLARA, HIGHLANDER, AND SIENNA VEHICLES, 2006 HIGHLANDER HYBRID; 2004 AND 2005 LEXUS ES330 AND RX330; AND 2006 LEXUS RX400H VEHICLES MANUFACTURED FROM JUNE 1, 2004 THROUGH MARCH 31, 2005, EQUIPPED WITH THE 1MZ-FE OR 3MZ-FE ENGINE. THE AMOUNT OF ADHESIVE AGENT APPLIED BETWEEN THE OUTER RING AND THE TORSIONAL RUBBER DAMPER (INNER RING) IN THE CRANKSHAFT PULLEY MAY BE INADEQUATE. IF THE ADHESIVE IS INSUFFICIENT, THERE IS A POSSIBILITY THAT THE OUTER RING MAY BECOME MISALIGNED AND IT MAY NOT PROPERLY ROTATE WITH THE INNER RING, CAUSING NOISE AND/OR ILLUMINATION OF THE BATTERY DISCHARGE INDICATOR LIGHT.
Consequence & remedy
Consequence: IN SOME CASES, THE BELT FOR THE POWER STEERING PUMP MAY BECOME DETACHED FROM THE PULLEY WHICH COULD RESULT IN A LOSS OF POWER STEERING AND A SUDDEN INCREASE IN STEERING EFFORT, INCREASING THE RISK OF A CRASH.
Remedy: TOYOTA WILL NOTIFY OWNERS, AND DEALERS WILL CHECK THE CRANKSHAFT PULLEY TO IDENTIFY WHETHER IT WAS PRODUCED BY THE U.S. SUPPLIER. IF SO, THE DEALER WILL REPLACE THE PULLEY WITH A NEW ONE AT NO CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING EARLY JANUARY 2012. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.
11V112000 · Vehicle Speed Control:accelerator Pedal
Feb 24, 2011
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2004-2006 HIGHLANDER, HIGHLANDER HYBRID, AND MODEL YEAR 2004-2007 LEXUS RX330, RX350, AND RX400H VEHICLES. IF THE FORWARD RETENTION CLIP USED TO SECURE THE FLOOR CARPET COVER, WHICH IS LOCATED IN FRONT OF THE CENTER CONSOLE, IS NOT INSTALLED PROPERLY THE COVER MAY LEAN TOWARD THE ACCELERATOR PEDAL AND INTERFERE WITH THE ACCELERATOR PEDAL ARM.
Consequence & remedy
Consequence: IF THIS OCCURS, THE ACCELERATOR PEDAL MAY TEMPORARILY BECOME STUCK IN A PARTIALLY DEPRESSED POSITION RATHER THAN RETURN TO THE IDLE POSITION. A STUCK ACCELERATOR PEDAL MAY RESULT IN UNINTENDED AND SUSTAINED VEHICLE SPEEDS AND MAKE IT DIFFICULT TO STOP, INCREASING THE RISK OF A VEHICLE CRASH.
Remedy: DEALERS WILL REPLACE THE FLOOR CARPET COVER WITH A NEWLY DESIGNED ONE FREE OR CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING MARCH 2011. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.
10V499000 · Service Brakes, Hydraulic:foundation Components:master Cylinder
Oct 21, 2010
TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2006 AVALON, MODEL YEAR 2004-2006 HIGHLANDER, MODEL YEAR 2004-2006 LEXUS RX, AND MODEL YEAR 2006 LEXUS GS AND IS VEHICLES. BRAKE FLUID CONTAINING POLYMERS IS USED THAT ACTS AS LUBRICANTS FOR CERTAIN BRAKE SYSTEM COMPONENTS. IF REPLACEMENT BRAKE FLUID IS USED THAT DOES NOT CONTAIN SUCH POLYMERS, OR THAT CONTAINS ONLY SMALL AMOUNTS, A PART OF THE RUBBER SEAL LOCATED AT THE REAR OF THE BRAKE MASTER CYLINDER MAY BECOME DRY, AND THE SEAL MAY CURL DURING MOVEMENT OF THE PISTON. IF THIS OCCURS, A SMALL AMOUNT OF BRAKE FLUID COULD SLOWLY LEAK FROM THE SEAL INTO THE BRAKE BOOSTER.
Consequence & remedy
Consequence: A LEAK OF BRAKE FLUID COULD LEAD TO A CHANGE IN BRAKE PEDAL FEEL AND OVERTIME A DEGRADATION IN BRAKING PERFORMANCE INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE SEAL WITH A NEWLY DESIGNED ONE. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON NOVEMBER 15, 2010. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331 AND LEXUS AT 1-800-255-3987.
06V253000 · Vehicle Speed Control:accelerator Pedal
Jul 13, 2006
ON CERTAIN SPORT UTILITY AND HYBRID VEHICLES, THE TWO RETAINING CLIPS FOR THE DRIVER'S SIDE FORWARD CENTER CONSOLE CAN BECOME LOOSE. IF BOTH CLIPS SEPARATE FROM THE FLOOR CARPET COVER, THE COVER MAY LEAN TOWARD THE ACCELERATOR PEDAL, CAUSING INTERFERENCE WITH THE ACCELERATOR PEDAL ROD.
Consequence & remedy
Consequence: THIS CONDITION MAY INTERFERE WITH THE ACCELERATOR PEDAL RETURNING TO THE IDLE POSITION INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE TWO FLOOR CARPET COVER RETAINING CLIPS FREE OF CHARGE. THE RECALL BEGAN ON JULY 24, 2006, AND SHOULD BE COMPLETED BY EARLY SEPTEMBER 2006. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331 OR LEXUS AT 1-800-255-3987.
04V181000 · Latches/locks/linkages:doors:latch
Apr 15, 2004
CERTAIN SPORT UTILITY VEHICLES HAVE A CHILD PROTECTION LOCK (CPL) SYSTEM ON BOTH OF THE REAR SIDE DOORS. WHEN AN OPERATOR OF THE VEHICLE CLOSES THE DOOR VERY HARD WITH THE CPL LEVER SET TO THE LOCK POSITION, THERE IS A POSSIBILITY THAT THE LEVER MAY CONTACT THE BODY PANEL, CAUSING THE CPL LEVER TO MOVE INTO THE UNLOCK POSITION.
Consequence & remedy
Consequence: THIS CONDITION COULD ALLOW THE DOOR TO BE OPENED WITH THE INSIDE WHILE THE OPERATOR BELIEVES THAT THE CPL WAS ACTIVATED. IF THE DOOR WERE OPENED FROM THE INSIDE WHILE THE VEHICLE WAS IN MOTION, AN OCCUPANT COULD FALL OUT AND BE INJURED.
Remedy: DEALERS WILL SHORTEN THE CPL LEVER. OWNER NOTIFICATION BEGAN MAY 7, 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
1RQ10003 · Unintended And Uncontrolled Acceleration
Opened Feb 16, 2010 · Closed Mar 1, 2011
Status: closed (inferred from source dates) · Electrical System:software; Vehicle Speed Control:accelerator Pedal
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, NHTSA requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to NHTSA pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V-112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V-113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V-388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V-115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After NHTSA opened RQ10-003, NHTSA launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.NHTSA launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.NHTSA enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on NHTSA's website.NASA's report is entitled Technical Support to the National Highway Traffic Safety Administration (NHTSA) on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).NHTSA's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. NHTSA did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.
Additional source detail variants (6)
Electrical System:software
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, NHTSA requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to NHTSA pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V-112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V-113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V-388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V-115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After NHTSA opened RQ10-003, NHTSA launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.NHTSA launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.NHTSA enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on NHTSA's website.NASA's report is entitled Technical Support to the National Highway Traffic Safety Administration (NHTSA) on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).NHTSA's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. NHTSA did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.
Electrical System:software
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, NHTSA requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to NHTSA pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V-112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V-113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V-388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V-115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After NHTSA opened RQ10-003, NHTSA launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.NHTSA launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.NHTSA enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on NHTSA's website.NASA's report is entitled Technical Support to the National Highway Traffic Safety Administration (NHTSA) on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).NHTSA's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. NHTSA did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.
Electrical System:software
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, NHTSA requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to NHTSA pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V-112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V-113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V-388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V-115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After NHTSA opened RQ10-003, NHTSA launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.NHTSA launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.NHTSA enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on NHTSA's website.NASA's report is entitled Technical Support to the National Highway Traffic Safety Administration (NHTSA) on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).NHTSA's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. NHTSA did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.
Vehicle Speed Control:accelerator Pedal
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, NHTSA requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to NHTSA pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V-112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V-113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V-388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V-115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After NHTSA opened RQ10-003, NHTSA launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.NHTSA launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.NHTSA enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on NHTSA's website.NASA's report is entitled Technical Support to the National Highway Traffic Safety Administration (NHTSA) on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).NHTSA's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. NHTSA did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.
Vehicle Speed Control:accelerator Pedal
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, NHTSA requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to NHTSA pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V-112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V-113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V-388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V-115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After NHTSA opened RQ10-003, NHTSA launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.NHTSA launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.NHTSA enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on NHTSA's website.NASA's report is entitled Technical Support to the National Highway Traffic Safety Administration (NHTSA) on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).NHTSA's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. NHTSA did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.
Vehicle Speed Control:accelerator Pedal
On February 16, 2010, NHTSA's Office of Defects Investigation (ODI) opened RQ10-003 to determine whether the scope of prior Toyota recalls relating to potential unintended acceleration were sufficiently broad, including, among others, Toyota recalls 07E-082, 09V-388, 10V-017, and 10V-023.NHTSA also requested information regarding potential electronic causes of unintended acceleration in Toyota and Lexus vehicles.I. Pedal Interference from Floor mats, Carpet Covers and Plastic Pads in Carpets.During the RQ10-003 investigation, ODI reviewed a large volume of documents to assess whether additional vehicles should be recalled.Following the agency's analysis, NHTSA requested that Toyota recall additional vehicles.Toyota complied with the agency's request.The details of these recalls are set forth more fully in Toyota's reports to NHTSA pursuant to 49 CFR Part 573.These recalls are as follows:Recall 11V-112: (1) model year (MY) 2004-2006 Toyota Highlander and Highlander Hybrid; and, (2) MY 2004-2007 Lexus RX330,RX350, and RX400h (hybrid model). The total estimated population under this recall is 769,379 vehicles.This recall remedies potential accelerator pedal entrapment caused by a loose floor carpet cover (trim panel). Recall 11V-113: (1) MY 2003-2009 through 2009 Toyota 4Runner; (2) MY 2006-2010 Toyota RAV4; and, (3) MY 2008-2011 Lexus LX570.The total estimated population under this recall is 1,381,000 vehicles.This recall supplements recall 09V-388 and remedies potential accelerator pedal entrapment by an unsecured floor mat.Recall 11V-115: (1) MY 2006-2007 Lexus GS300 (all wheel drive vehicles); and, (2) MY 2006-2007 Lexus GS350 (all wheel drive vehicles). The total estimated population under this recall is 19,647 vehicles.This recall remedies potential accelerator pedal entrapment caused by inadequate clearance between the pedal linkage and a plastic pad embedded in the vehicle's carpet.II. Potential Electronic Causes of Unintended Acceleration.After NHTSA opened RQ10-003, NHTSA launched a ten-month study of potential electronic causes of unintended acceleration in Toyota vehicles.NHTSA launched the study in the spring of 2010 in light of concerns aired in Congressional hearings.NHTSA enlisted engineers at the National Aeronautics and Space Administration (NASA) with expertise in areas such as computer controlled electronic systems, electromagnetic interference and software integrity to assess whether electronic systems or electromagnetic interference played a role in incidents of unintended acceleration in Toyota vehicles.That study has concluded.Two reports are associated with the study and are available on NHTSA's website.NASA's report is entitled Technical Support to the National Highway Traffic Safety Administration (NHTSA) on the Reported Toyota Motor Corporation (TMC) Unintended Acceleration (UA) Investigation, NESC Assessment No. TI-10-00618 (Jan. 18, 2011).NHTSA's report is entitled Technical Assessment of Toyota Electronic Throttle Control (ETC) Systems (Feb. 2011).Both reports should be read in conjunction with each other. As stated in its report, NASA did not find an electronic cause of large throttle openings that can result in unintended acceleration incidents. NHTSA did not find a vehicle-based cause of unintended acceleration incidents other than the physical pedal interference causes that are being addressed by Toyota's recalls. This RQ is closed.