IllustrationTRANSMISSION JUMPS AT DIFFERENT SPEEDS. *TR
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
Power Train complaints
58 reportsVEHICLE WAS DRIVEN NORMALLY AND PARKED. WHILE PARKED, OWNER NOTICED SMALL LEAK UNDER FRONT AXLE, INVESTIGATED AND LEAK APPEARED TO BE TRANSMISSION FLUID OR ANTIFREEZE. OWNER DROVE VEHICLE NEXT DAY, PARKED AND NOTICED LEAK WAS LARGER. OWNER TOOK VEHICLE TO DEALER NEXT MORNING AND WAS TOLD THE HEAD GASKET WAS FAILING. DEALER S…
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VEHICLE WAS DRIVEN NORMALLY AND PARKED. WHILE PARKED, OWNER NOTICED SMALL LEAK UNDER FRONT AXLE, INVESTIGATED AND LEAK APPEARED TO BE TRANSMISSION FLUID OR ANTIFREEZE. OWNER DROVE VEHICLE NEXT DAY, PARKED AND NOTICED LEAK WAS LARGER. OWNER TOOK VEHICLE TO DEALER NEXT MORNING AND WAS TOLD THE HEAD GASKET WAS FAILING. DEALER SAID ALTERNATIVES WERE TO REPAIR HEAD GASKET ($3200+), REPLACE ENGINE OR BUY ANOTHER VEHICLE. OWNER DECLINED REPAIR AND TOOK VEHICLE TO INDEPENDENT MECHANIC, WHO CONFIRMED HEAD GASKET LEAK AND RECOMMENDED EITHER SEALANT ($250) OR HEAD GASKET REPAIR ($1200). OWNER CHOSE SEALANT. ABOUT FOUR DAYS AFTER SEALANT FIX, OWNER WAS DRIVING VEHICLE AND STOPPED AT A STARBUCKS DRIVE-THROUGH. MINUTES INTO THE WAIT, THE VEHICLES TEMP GAUGE BEGAN TO CLIMB RAPIDLY. OWNER REVVED ENGINE AND TEMP DECLINED. OWNER DROVE VEHICLE HOME AND INSPECTED ENGINE, DISCOVERED COOLANT HAD BEGUN TO SPRAY FROM OVERFLOW RESERVOIR. OWNER LET VEHICLE COOL. NEXT DAY, OWNER DROVE VEHICLE AT MODEST SPEED ACROSS TOWN, WATCHING THE TEMP GAUGE. TEMP WOULD INCREASE INCREMENTALLY, THEN DECLINE, BUT NO OVERHEATING APPEARED. THIRD DAY, OWNER DID SAME, BUT THIS TIME, AS OWNER APPROACHED HIS HOME, THE TEMP GAUGE SHOT TO RED. OWNER PARKED IN DRIVEWAY, OPENED HOOD AND FOUND OVERFLOW RESERVOIR BUBBLING, COOLANT SPRAY AND OVERFLOW ON FRAME. PRIOR TO THESE INCIDENTS, ABOUT ONE YEAR AGO THE OWNER HAD BEEN TOLD BY TOYOTA DEALER THAT A FEW ENGINE MOUNTS WERE CRACKED AND NEEDED REPLACEMENT, WHICH WAS DONE. NO OTHER MAJOR REPAIRS OR ISSUES HAVE EXISTED WITH VEHICLE. VEHICLE IS NOT 10 YEARS OLD, ITS 103,500 MILES HAS BEEN GENERALLY LIGHT HIGHWAY AND SHORT-DISTANCE CITY DRIVING. OIL AND OTHER MAINTENANCE HAS BEEN ROUTINELY PERFORMED. *TR
TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT THE SMELL OF BURNING OIL WAS EMITTED FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE DEALER CONFIRMED THAT THE TRANSMISSION OIL BEARING SEAL NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE M…
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TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT THE SMELL OF BURNING OIL WAS EMITTED FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE DEALER CONFIRMED THAT THE TRANSMISSION OIL BEARING SEAL NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 85,000 AND THE CURRENT MILEAGE WAS 85,250. UPDATED 08/08/2012 *JS
SINCE I PURCHASED MY 2004 TOYOTA HIGHLANDER V6 IT HAS VERY ROUGH SHIFTS. THE TRANSMISSIONS SEEMS TO HESITATE AND LAG WHEN I TRY TO ACCELERATE DURING NORMAL DRIVING SPEEDS, (I FEEL LIKE I AM ON A CARNIVAL RIDE). I HAVE HAD IT TO 3 DIFFERENT DEALERSHIP IN FLORIDA & THEY ALL SAY THE SAME THING ("THAT THIS MODEL DRIVES LIKE THAT" & …
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SINCE I PURCHASED MY 2004 TOYOTA HIGHLANDER V6 IT HAS VERY ROUGH SHIFTS. THE TRANSMISSIONS SEEMS TO HESITATE AND LAG WHEN I TRY TO ACCELERATE DURING NORMAL DRIVING SPEEDS, (I FEEL LIKE I AM ON A CARNIVAL RIDE). I HAVE HAD IT TO 3 DIFFERENT DEALERSHIP IN FLORIDA & THEY ALL SAY THE SAME THING ("THAT THIS MODEL DRIVES LIKE THAT" & IT'S THE WAY YOU DRIVE") FUNNY THOUGH WHEN THE MECHANIC DROVE IT, WITH ME IN THE CAR HE SAID THAT IT WAS THE TRANSMISSION. THE UNDERWRITERS IN SERVICE THINK BECAUSE I'M A WOMEN, IT'S THE WAY I DRIVE. I LOVE MY CAR BUT, THIS PROBLEM NEEDS TO BE ADDRESSED BY TOYOTA & FIXED !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! *JS
HESITATION DURING AUTO TRANSMISSION GEAR CHANGES. ENGINE REVS VERY HIGH THEN CHANGES GEARS. *TR
TOYOTA HIGHLANDER 2004 6 CYL AWD - LAST MAY SQUEALING NOISE COMING FROM BACK OF THE CAR. MADE IT TO A TOYOTA DEALER AND FOUND OUT IT WAS THE REAR DIFFERENTIAL. TOOK 4 DAYS AND OVER $1200 TO FIX. THIS WEEK, NOISE COMING FROM FRONT OF THE CAR. CONTINUED TO GET WORSE. TOOK TO TOYOTA DEALER AND WAS INFORMED IT WAS THE DRIVE SHAFT -…
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TOYOTA HIGHLANDER 2004 6 CYL AWD - LAST MAY SQUEALING NOISE COMING FROM BACK OF THE CAR. MADE IT TO A TOYOTA DEALER AND FOUND OUT IT WAS THE REAR DIFFERENTIAL. TOOK 4 DAYS AND OVER $1200 TO FIX. THIS WEEK, NOISE COMING FROM FRONT OF THE CAR. CONTINUED TO GET WORSE. TOOK TO TOYOTA DEALER AND WAS INFORMED IT WAS THE DRIVE SHAFT - SO FAR OUT OF ALIGNMENT NEEDS TO BE REPLACED? JUST HAD IT AT THE SAME DEALER FOR MAINTENANCE 3 WEEKS AGO - SAID NOTHING. THIS WILL COST $1300. SEARCHING INTERNET AND FINDING I'M NOT ALONE, BUT NO RECALL. WHAT GIVES WITH THESE CARS? *TR
CAR HESITATES AND SUDDENLY SURGES FORWARD. THE IS THE 2ND TIME THIS HAS OCCURRED IN THE PAST 3 MONTHS. THE FIRST TIME WAS NEAR MY GARAGE AND FORTUNATELY THE CAR ONLY TRAVELED SEVERAL FEET FORWARD BEFORE HITTING THE CORNER OF THE GARAGE AND COMING TO A STOP. LAST SUNDAY, I WAS LEAVING A PARKING LOT. I WAS TURNING LEFT WHEN TH…
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CAR HESITATES AND SUDDENLY SURGES FORWARD. THE IS THE 2ND TIME THIS HAS OCCURRED IN THE PAST 3 MONTHS. THE FIRST TIME WAS NEAR MY GARAGE AND FORTUNATELY THE CAR ONLY TRAVELED SEVERAL FEET FORWARD BEFORE HITTING THE CORNER OF THE GARAGE AND COMING TO A STOP. LAST SUNDAY, I WAS LEAVING A PARKING LOT. I WAS TURNING LEFT WHEN THE CAR HESITATED AND SUDDENLY SURGED FORWARD AT A RAPID SPEED. BEFORE I WAS ABLE TO REGAIN CONTROL, THE CAR HAD TRAVELED APPROXIMATELY 20-25 FEET FORWARD, RAN UP ON A MEDIAN AND CRASHED INTO A TREE. I CALLED THE POLICE ABOUT FILING A REPORT BUT AS IT OCCURRED ON PRIVATE PROPERTY, THEY DECLINED. *TR
TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT WHILE DRIVING 40 MPH AND DEPRESSING THE ACCELERATOR, THE VEHICLE WAS HESITANT TO RESPOND. THE FAILURE WOULD OCCUR MOST PROMINENTLY WHEN THE VEHICLE WAS FIRST STARTED. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE …
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TL* THE CONTACT OWNS A 2004 TOYOTA HIGHLANDER. THE CONTACT STATED THAT WHILE DRIVING 40 MPH AND DEPRESSING THE ACCELERATOR, THE VEHICLE WAS HESITANT TO RESPOND. THE FAILURE WOULD OCCUR MOST PROMINENTLY WHEN THE VEHICLE WAS FIRST STARTED. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE DEALER WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 91,000 AND CURRENT MILEAGE IS 93,000.
MY 2004 TOYOTA HIGHLANDER V6 AT TIME HAS VERY ROUGH SHIFTS. THE TRANSMISSIONS SEEMS TO HESITATE AND LAG WHEN I TRY TO ACCELERATE DURING NORMAL DRIVING SPEEDS. THIS HAS HAPPENED WHEN I WAS GOING 20 TO 60. *TR
S10 APPROPRIATE HANDLING RE COMPLAINT AGAINST TOYOTA MOTOR CORPORATION AND JAY WOLFE TOYOTA OF WEST COUNTY FM OWNER OF A 2004 TOYOTA HIGHLANDER. *TGW AFTER DRIVING THE VEHICLE FOR A FEW WEEKS, IT BECAME APPARENT THERE WAS A PROBLEM WITH THE SHIFTING WITH THE AUTOMATIC TRANSMISSION. THE CONDITION WAS MOST NOTICEABLE DURING SHAR…
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S10 APPROPRIATE HANDLING RE COMPLAINT AGAINST TOYOTA MOTOR CORPORATION AND JAY WOLFE TOYOTA OF WEST COUNTY FM OWNER OF A 2004 TOYOTA HIGHLANDER. *TGW AFTER DRIVING THE VEHICLE FOR A FEW WEEKS, IT BECAME APPARENT THERE WAS A PROBLEM WITH THE SHIFTING WITH THE AUTOMATIC TRANSMISSION. THE CONDITION WAS MOST NOTICEABLE DURING SHARP ACCELERATION PERIODS. THE ENGINE WOULD REV UP, BUT IT DID NOT GAIN SPEED RELATIVE TO THE AMOUNT OF PRESSURE APPLIED TO THE ACCELERATOR. THE ENGINE WOULD SOUND AS IF IT WAS UNDER STRESS AND IT WOULD THEN SHIFT WITH A SEVERE JOLT. THE DEALER INFORMED THE CONSUMER TOYOTA WAS AWARE OF THE TRANSMISSION FLAW, BUT THERE WAS NO FIX. THE CONSUMER HAS SINCE TRADED THE VEHICLE.
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.