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2005 Toyota 4RUNNER

Owner reports · Recalls · Investigations

More warning signs than most 4RUNNER years

Owner complaints for the 2005 Toyota 4RUNNER are substantially higher than the model-year median of 58.

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When problems were reported

Mileage at the reported incident

292 reports with mileage · 117 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.

  • Structure. Review the 185 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Suspension. Review the 75 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Vehicle Speed Control. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

19 crash reports3 fire reports10 injury reports

Power Train complaints

23 reports
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150,000 miles · Jan 13, 2016
Power Train

TL* THE CONTACT OWNS A 2005 TOYOTA 4RUNNER. WHEN THE VEHICLE CAME TO A COMPLETE STOP, THERE WAS A TWO SECOND DELAY BEFORE THE VEHICLE JOLTED. THE CONTACT STATED THAT IT FELT AS THOUGH SOMEONE HAD REAR-ENDED THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED INTERMITTENTLY AND BECAME PROGRESSIVELY WORSE OVER TIME. THE VEHI…

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TL* THE CONTACT OWNS A 2005 TOYOTA 4RUNNER. WHEN THE VEHICLE CAME TO A COMPLETE STOP, THERE WAS A TWO SECOND DELAY BEFORE THE VEHICLE JOLTED. THE CONTACT STATED THAT IT FELT AS THOUGH SOMEONE HAD REAR-ENDED THE VEHICLE. THE CONTACT STATED THAT THE FAILURE OCCURRED INTERMITTENTLY AND BECAME PROGRESSIVELY WORSE OVER TIME. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE DRIVESHAFT WAS LUBRICATED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 150,000.

NHTSA ODI #10819952

Mileage unknown · Jun 19, 2015
Power TrainStructureSuspension

LOW MILEAGE CAR AND PARTS OF THE FRAME ARE FALLING A PART. DEALER REFUSES TO SERVICE CAR AS IT IS UNSAFE. TOYOTA SAYS THEY HAVE NO PROBLEMS WITH THE 4RUNNERS RUSTING JUST THERE TRUCKS AT THIS TIME...?

NHTSA ODI #10726194

125,000 miles · Oct 14, 2010
Power Train

I HAVE A 2005 TOYOTA 4RUNNER AND IT HAS A LOUD CLUNK IN THE DRIVETRAIN EVERY TIME I STOP.WHEN IT CLUNKS IT ALSO LUNGES FORWARD CAUSING A FEW CLOSE CALLS I HAVE ADDRESSED THIS ISSUE WITH TOYOTA AND THEY SAY IT IS A NORMAL OPERATING CHARACTERISTIC. THE PROBLEM OCCURS IN THE 03-06 4RUNNERS,TACOMAS AND LEXUS GX470 TOYOTA HAS A T.S.B…

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I HAVE A 2005 TOYOTA 4RUNNER AND IT HAS A LOUD CLUNK IN THE DRIVETRAIN EVERY TIME I STOP.WHEN IT CLUNKS IT ALSO LUNGES FORWARD CAUSING A FEW CLOSE CALLS I HAVE ADDRESSED THIS ISSUE WITH TOYOTA AND THEY SAY IT IS A NORMAL OPERATING CHARACTERISTIC. THE PROBLEM OCCURS IN THE 03-06 4RUNNERS,TACOMAS AND LEXUS GX470 TOYOTA HAS A T.S.B ON THE LEXUS MODEL ONLY NOT THE TOYOTA 4RUNNERS OR TACOMAS WHICH MEANS AT LEAST TO ME THAT IT IS A DEFECT!!! I HAVE CONTACTED THE DEALERSHIP AND THEY SAY THEIR IS NO TSB SO THEY CANT DO ANYTHING I CONTACTED TOYOTA AND GOT NO RESPONSE. IF THEY WILL FIX THE LEXUS VERSION WHY NOT THE TOYOTA VERSION??? *TR

NHTSA ODI #10360552

62,800 miles · Sep 2, 2010
Power Train

2005 TOYOTA 4-RUNNER SPORT EDITION. HAD CAR PARKED IN DRIVEWAY. CAR WAS IN PARK WITH NO KEY IN THE IGNITION. 4-YEAR OLD CHILD CLIMBED INTO CAR AND PUT CAR GEAR-SHFT INTO NEUTRAL (NO KEY IN IGNITION AND FOOT WAS NOT ON BRAKE PEDAL). CAR ROLLED OUT OF DRIVEWAY INTO A BUSY ROAD. ANOTHER CAR NEARLY HIT THE 4-RUNNER. DRIVER OF …

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2005 TOYOTA 4-RUNNER SPORT EDITION. HAD CAR PARKED IN DRIVEWAY. CAR WAS IN PARK WITH NO KEY IN THE IGNITION. 4-YEAR OLD CHILD CLIMBED INTO CAR AND PUT CAR GEAR-SHFT INTO NEUTRAL (NO KEY IN IGNITION AND FOOT WAS NOT ON BRAKE PEDAL). CAR ROLLED OUT OF DRIVEWAY INTO A BUSY ROAD. ANOTHER CAR NEARLY HIT THE 4-RUNNER. DRIVER OF OTHER VEHICLE STOPPED AND HALTED OTHER TRAFFIC BY HONKING THEIR HORN. OWNER OF 4-RUNNER HEARD HONKING, CAME OUT OF HOUSE AND FOUND 4-RUNNER SITTING ACROSS THE ROAD WITH THE 4-YEAR OLD CHILD STILL IN IT. CONDITION OF PUTTING 4-RUNNER INTO NEUTRAL WITHOUT KEY OR FOOT ON BRAKE PEDAL WAS TESTED SEVERAL MORE TIMES AND FOUND TO BE REPEATABLE. *TR

NHTSA ODI #10353624

90,000 miles · Apr 29, 2010
Electrical SystemPower TrainTraction Control System

THE VEHICLE RPMS WOULD GO UP BUT THE CAR WOULD BARLEY MOVE, OR WHILE DRIVING GOING TO ACCELERATE THE VEHICLE WOULD NOT GO FASTER TO ENGAGE IN TRAFFIC, CORROSION OF PINS IN THE TRANSMISSION WIRING HARNESS THAT CONNECTS TO THE ENGINE WIRING HARNESS. THIS HARNESS IS ALSO TIED TO THE ABS, TRACTION CONTROL. IT CAUSES THE VEHICLE T…

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THE VEHICLE RPMS WOULD GO UP BUT THE CAR WOULD BARLEY MOVE, OR WHILE DRIVING GOING TO ACCELERATE THE VEHICLE WOULD NOT GO FASTER TO ENGAGE IN TRAFFIC, CORROSION OF PINS IN THE TRANSMISSION WIRING HARNESS THAT CONNECTS TO THE ENGINE WIRING HARNESS. THIS HARNESS IS ALSO TIED TO THE ABS, TRACTION CONTROL. IT CAUSES THE VEHICLE TO BECOME UNSAFE WHEN DRIVING AS IF IT ACTS UP YOU CANNOT ACCELERATE AND SORT OF CHUGS ALONG. DANGEROUS IN ON RAMP AND TRAFFIC SITUATIONS. THIS ALSO CAUSED THE SOLENOID IN THE TRANSMISSION TO SHORT OUT AS IT WAS HANGING UP ON THE SHIFT WHICH CAUSED A CLUNKING SOUND. THE TRANSMISSION WIRE HARNESS WAS REPLACED WHICH SHOWED 3 CORRODED PINS. THE SOLENOID IN THE TRANSMISSION WAS ALSO REPLACED. *TR

NHTSA ODI #10328140

1 miles · Mar 11, 2010
Power Train

WHEN BRINGING VEHICLE TO A STOP, THERE IS A VERY LOUD CLUNK THAT CAN BE PHYSICALLY FELT SHUDDERING THROUGH THE ENTIRE VEHICLE. MANY MANY TRIPS TO THE DEALER RESULTED IN NOTHING. THERE IS A TSB FOR THE LEXUS EQUIVALENT OF THE 4RUNNER WITH THIS PROBLEM. THIS MEANS THEY ADMIT THERE IS A PROBLEM, BUT REFUSE TO ACKNOWLEDGE IT ON N…

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WHEN BRINGING VEHICLE TO A STOP, THERE IS A VERY LOUD CLUNK THAT CAN BE PHYSICALLY FELT SHUDDERING THROUGH THE ENTIRE VEHICLE. MANY MANY TRIPS TO THE DEALER RESULTED IN NOTHING. THERE IS A TSB FOR THE LEXUS EQUIVALENT OF THE 4RUNNER WITH THIS PROBLEM. THIS MEANS THEY ADMIT THERE IS A PROBLEM, BUT REFUSE TO ACKNOWLEDGE IT ON NON-LEXUS VEHICLES. UNACCEPTABLE. IF THE DRIVESHAFT IS IMPACTING THAT HARD EVERY TIME THE VEHICLE STOPS, IT IS A MATTER OF TIME BEFORE EXCESSIVE WEAR WILL CAUSE A SAFETY ISSUE. *TR

NHTSA ODI #10318809

100,000 miles · Feb 28, 2010
Power Train

WHEN COMING TO A STOP VEHICLE TENDS TO SHIFT INTO FIRST GEAR LATE, RIGHT AT STOPPING AND IT FEELS LIKE A BUMP OR SOMEONE HITTING YOU FROM BEHIND. THIS DEPENDS ON HOW FAST THE VEHICLE IS STOPPED. IF STOPPED FASTER, THE VEHICLE NEVER SHIFTS INTO FIRST GEAR AT STOPPING. AFTER THE BRAKE IS RELEASED THE VEHICLE FEELS AS IF SHIFTI…

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WHEN COMING TO A STOP VEHICLE TENDS TO SHIFT INTO FIRST GEAR LATE, RIGHT AT STOPPING AND IT FEELS LIKE A BUMP OR SOMEONE HITTING YOU FROM BEHIND. THIS DEPENDS ON HOW FAST THE VEHICLE IS STOPPED. IF STOPPED FASTER, THE VEHICLE NEVER SHIFTS INTO FIRST GEAR AT STOPPING. AFTER THE BRAKE IS RELEASED THE VEHICLE FEELS AS IF SHIFTING FROM SECOND TO FIRST GEAR. MANUALLY DOWN SHIFTING THE VEHICLE IN ALL GEARS FEELS NORMAL EXCEPT FROM SECOND TO FIRST. THERE IS A HESITATION BETWEEN THESE GEARS, THE VEHICLE COAST AS IF IN NEUTRAL FOR ABOUT TWO SECONDS THEN SHIFTS INTO FIRST GEAR. THIS WEBSITE ALSO DESCRIBES THE "BUMP" FEEL FROM OTHER OWNERS, SEARCH FOR "BUMP" HTTP://TOWNHALL-TALK.EDMUNDS.COM/DIRECT/VIEW/.F0DACC5/175. *TR

NHTSA ODI #10314922

Mileage unknown · Feb 22, 2010
EquipmentPower Train

EVERY SO OFTEN MY 2005 TOYOTA 4-RUNNER WILL LURCH FORWARD AT A STOP. ITS LIKE THE VEHICLE IS BEING REARENDED. THIS OCCURS WITHOUT WARNING AND AT RANDOM TIMES DURING A TYPICAL DAY. THE TRANSMISSION WILL ALSO LOCK IN 4TH GEAR IF WHILE DRIVING ON THE INTERSTATE THE VEHICLE SLOW SUDDENLY - THIS IS CORRECTED BY PULLING OFF THE INTERS…

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EVERY SO OFTEN MY 2005 TOYOTA 4-RUNNER WILL LURCH FORWARD AT A STOP. ITS LIKE THE VEHICLE IS BEING REARENDED. THIS OCCURS WITHOUT WARNING AND AT RANDOM TIMES DURING A TYPICAL DAY. THE TRANSMISSION WILL ALSO LOCK IN 4TH GEAR IF WHILE DRIVING ON THE INTERSTATE THE VEHICLE SLOW SUDDENLY - THIS IS CORRECTED BY PULLING OFF THE INTERSTATE, SHUTTING DOWN THE VEHICLE AND WAITING A FEW MOMENTS. *TR

NHTSA ODI #10312726

83,000 miles · Feb 5, 2010
Power TrainService Brakes, HydraulicVehicle Speed Control

I AM WRITING TODAY TO ALERT YOU TO A POTENTIAL ACCELERATOR PROBLEM WITH THE 2005 TOYOTA 4RUNNER SUV. IN MID-DECEMBER, MY HUSBAND AND I WERE DRIVING ON THE HIGHWAY WHEN THE CAR INEXPLICABLY ACCELERATED, GOING FROM APPROXIMATELY 40 MPH TO ABOUT 60 MPH WITHIN A MATTER OF SECONDS. MY HUSBAND, WHO HAS HAD PROFESSIONAL DRIVING INSTRUC…

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I AM WRITING TODAY TO ALERT YOU TO A POTENTIAL ACCELERATOR PROBLEM WITH THE 2005 TOYOTA 4RUNNER SUV. IN MID-DECEMBER, MY HUSBAND AND I WERE DRIVING ON THE HIGHWAY WHEN THE CAR INEXPLICABLY ACCELERATED, GOING FROM APPROXIMATELY 40 MPH TO ABOUT 60 MPH WITHIN A MATTER OF SECONDS. MY HUSBAND, WHO HAS HAD PROFESSIONAL DRIVING INSTRUCTION, PUT THE CAR INTO NEUTRAL AND WAS ABLE TO SLOW THE CAR DOWN, AT WHICH POINT THE ACCELERATOR (WHICH WAS MOVING TOWARDS THE FLOOR WITHOUT A FOOT ON IT) POPPED BACK UP AND THE BRAKES BEGAN WORKING AGAIN. HOWEVER, WITHIN THIS SAME JOURNEY, THIS SAME ACCELERATOR PROGRAM OCCURRED TWO ADDITIONAL TIMES. WE IMMEDIATELY TOOK THE SUV TO TOYOTA OF ALEXANDRIA IN VIRGINIA AND EXPLAINED WHAT HAPPENED. THEY NOTIFIED US THAT OUR CAR WAS NOT SUBJECT TO A RECALL FOR ACCELERATOR PROBLEMS BUT, BASED ON OUR CONCERNS, AGREED TO EXAMINE THE SUV. TO THEIR CREDIT, THEY DID CALL IN A CORPORATE INSPECTOR TO EXAMINE THE DISSEMBLED DRIVE TRAIN WHO IN TURN DETERMINED THAT AN ACCUMULATION OF OIL IN THE DIFFERENTIALS CAUSED THE CARS COMPUTER TO MISREAD ACCELERATION AND DECELERATION INFORMATION. DESPITE THIS DIAGNOSIS -- AND SUBSEQUENT REPLACEMENT OF THE DRIVE TRAIN AND REAR DIFFERENTIALS -- TOYOTA MECHANICS WERE NEVER ABLE TO REPLICATE THE ACCELERATION PROBLEM THAT WE EXPERIENCED. AFTER TALKING TO SEVERAL TOYOTA REPRESENTATIVES, AS WELL AS A NUMBER OF INDEPENDENT MECHANICS, WE WERE ADVISED TO PURSUE ARBITRATION WITH TOYOTA AND ARE CURRENTLY ENTRENCHED IN THAT PROCESS. IN THE INTERIM, WE ARE USING THE CAR ONLY FOR LOCAL JOURNEYS OUR OF CONCERN THAT THIS ACCELERATOR PROBLEM COULD REOCCUR. I AM WRITING TODAY TO INFORM YOU OF THE PROBLEM SO THAT YOU HAVE A RECORD THAT TOYOTA'S ACCELERATOR PROBLEMS MAY EXTEND BEYOND THE CARS/SUVS INCLUDED IN THE RECENT RECALL. *TR

NHTSA ODI #10306653

15,000 miles · Oct 20, 2009
Power Train

1. HAPPENED SINCE ABOUT 15-20K MILES ON MY 2005 4RUNNER (I'M THE FIRST AND ONLY OWNER). 2. OCCURS WHEN COMING TO A STOP, LARGE CLUNK SOUND AND VEHICLE JOLTS FORWARD RIGHT AFTER A FULL STOP. 3. NOTHING HAS BEEN DONE TO CORRECT THE FAILURE. EACH TIME THE TOYOTA DEALER SERVICE TECH TAKES IT FOR A RIDE THEY CANNOT REPLICATE I…

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1. HAPPENED SINCE ABOUT 15-20K MILES ON MY 2005 4RUNNER (I'M THE FIRST AND ONLY OWNER). 2. OCCURS WHEN COMING TO A STOP, LARGE CLUNK SOUND AND VEHICLE JOLTS FORWARD RIGHT AFTER A FULL STOP. 3. NOTHING HAS BEEN DONE TO CORRECT THE FAILURE. EACH TIME THE TOYOTA DEALER SERVICE TECH TAKES IT FOR A RIDE THEY CANNOT REPLICATE IT, I WENT ONCE AND WAS NOT ABLE TO REPLICATE IT AT THAT TIME. HOWEVER, THERE ARE NUMEROUS ONLINE FORUM DISCUSSIONS ABOUT THE ISSUE (SEE THIS ONE: HTTP://WWW.TUNDRASOLUTIONS.COM/FORUMS/4RUNNER/53302-4RUNNER-V8-CLUNK-IN-DRIVETRAIN/). APPARENTLY A RECALL FIX FOR THE LEXUS 470 (SAME AS A TOYOTA 4RUNNER LIKE MINE) HAS BEEN PROVIDED FOR LEXUS OWNERS BUT NOT FOR TOYOTA OWNERS. THE PARTS TO SOLVE THE ISSUE ARE IDENTICAL. TOYOTA DEALER SERVICE DEPARTMENT STATED UNLESS TOYOTA MOTOR CORP. ACTUALLY ISSUES A RECALL AND PROVIDES DETAILS ON A FIX, THEY ARE NOT ABLE TO DO ANYTHING SINCE WE CANNOT REPLICATE IT WHEN THEY ARE SERVICING MY 4RUNNER. *TR

NHTSA ODI #10289044

Official recalls

5

16V396000 · Seats:front Assembly:seat Heater/cooler

Jun 2, 2016

Southeast Toyota Distributors, LLC (SET) is recalling certain 2005-2011 4Runner, Highlander, Sequoia, and Sienna, 2005-2010 Avalon and Tundra, 2006-2008 Camry Solara, 2006-2010 Highlander hybrid, 2006-2011 Rav4 and Tacoma, 2007-2010 FJ Cruiser, 2007-2011 Camry hybrid, 2009-2010 Venza, 2010-2012 Prius, 1988-1990 and 2005-2010 Camry, and 1989 and 2009-2010 Corolla vehicles equipped with aftermarket accessory seat heaters with a copper strand heating element. The electrical wiring in the seat heaters may be damaged when the seat cushion is compressed.

Consequence & remedy

Consequence: If damaged, the copper strand heating element may short circuit, increasing the risk of a fire.

Remedy: SET will notify owners, and dealers will disconnect the seat heaters, free of charge, and refund the purchase price of the seat heater accessory. The recall began on July 14, 2016. Owners may contact SET customer service at 1-866-405-4226. SET number for this recall is SET16B.

16V065000 · Air Bags:side/window

Feb 5, 2016

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain model year 2003-2006 Toyota Land Cruiser and Lexus LX470, 2005-2006 Toyota Tundra and Sequoia, 2004-2006 Toyota 4Runner and Lexus GX470 vehicles equipped with side curtain-shield-air bags. The affected vehicles have an air bag control module that may be improperly programmed, causing the side curtain-shield-air bags to deploy inadvertently.

Consequence & remedy

Consequence: If the side curtain-shield-air bags deploy unexpectedly, it can increase the risk of occupant injury.

Remedy: Toyota will notify owners, and dealers will replace the air bag control module with one that has improved programming, free of charge. The recall began on December 1, 2016. Owners may contact Toyota customer service at 1-888-271-9371. Toyota's number for this recall is G0C and GLB.

11V113000 · Vehicle Speed Control:accelerator Pedal

Feb 24, 2011

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2008 THROUGH 2011 LEXUS LX570, 2003 THROUGH 2009 TOYOTA 4RUNNER, AND 2006 THROUGH 2010 RAV4 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: THE REMEDY IS NOW AVAILABLE. THE SAFETY RECALL BEGAN EARLY APRIL 2011. THE REMEDY WILL INVOLVE MODIFICATION OR REPLACEMENT OF THE ACCELERATOR PEDAL AND REPLACEMENT OF ANY TOYOTA ALL-WEATHER FLOOR MAT. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331 OR LEXUS AT 1-800-255-3987.

10V035000 · Equipment:other:labels

Feb 3, 2010

GULF STATES TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2010 VEHICLES FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THESE VEHICLES WERE SOLD BETWEEN SEPTEMBER 1, 2005 AND JUNE 2, 2008 WITHOUT THE REQUISITE LOAD CARRYING CAPACITY MODIFICATION LABELS.

Consequence & remedy

Consequence: THIS DOES NOT MEET THE STANDARD REQUIREMENTS.

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. DEALERS WILL ALSO CORRECT THE OWNER'S MANUAL. THE SAFETY RECALL BEGAN ON MAY 27, 2010. OWNERS MAY CONTACT GULF STATES TOYOTA AT 713-580-3300.

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.

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

2

DP18002 · Frame Corrosion

Opened Aug 17, 2018 · Closed Mar 18, 2022

Status: closed (inferred from source dates) · Structure:frame And Members

On August 7, 2018, the Office of Defects Investigation (ODI) received a defect petition from Mr. Gary Weinreich alleging premature frame corrosion failure in model year (MY) 2002 - 2006 Toyota 4Runner vehicles. The petitioner based his request upon a corrosion-related front suspension failure he experienced in his MY 2005 Toyota 4Runner, a class action lawsuit settlement involving other Toyota products, and other complaints of underbody corrosion in Toyota 4Runner vehicles that he found in NHTSA?s online complaint database. The petitioner submitted a complaint to NHTSA documenting his experience (NHTSA ID 11098055). On August 17, 2018, ODI opened DP18-002 to evaluate the petitioner?s request. ODI?s evaluation included information provided by the petitioner regarding his vehicle, facts related to the class action lawsuit cited by the petitioner, and consumer complaint data received by NHTSA regarding underbody corrosion in third and fourth-generation Toyota 4Runner vehicles.The undercarriage of the petitioner?s vehicle exhibited severe corrosion damage indicative of seawater immersion. The vehicle?s service history shows that concerns with underbody corrosion were first noted by a Toyota dealer in a multi-point vehicle inspection performed on April 28, 2011. The invoice for that inspection noted ?severe and excessive amount of rust on the undercarriage and on the drive shaft transmission.? Two years later, on October 21, 2013, another multi-point inspection by a Toyota dealer observed further progression of underbody corrosion damage, noting: ?rust on shocks/struts and other components,? ?rust on exhaust system,? ?both splash shields severely rusted,? and ?undercarriage very rusty.? On July 17, 2017, approximately 10 months prior to experiencing the suspension failure incident, an independent repair facility performing routine oil change and brake maintenance informed the Petitioner of a concern with ?excessive frame corrosion? on his vehicle. The service history, severe general corrosion damage, failure age, and environment do not support the petitioner?s allegation of premature corrosion failure.ODI?s analysis of NHTSA complaint data identified fifteen incidents of front lower control arm failure in fourth-generation Toyota 4Runner sport utility vehicles. Two of the failures, including the petitioner?s vehicle, involve vehicles operated in ocean front communities with continuous exposure to aerosolized marine salts and potential exposure to seawater immersion. The remaining thirteen failures all involved vehicles owned or previously registered in states with the greatest use of deicing salts to treat road surfaces in winter months (?Salt states?). On average, the front lower control arm failures occurred after 13.1 years in service in highly corrosive environments. The failure ages and environments do not support the petitioner?s allegation of premature corrosion failure. NHTSA is authorized to issue an order requiring notification and remedy of a defect if the Agency?s investigation shows a defect in design, construction, or performance of a motor vehicle that presents an unreasonable risk to safety. 49 U.S.C. ?? 30102(a)(9), 30118. Since the information before the Agency is not indicative of a vehicle-based defect, it is unlikely that any investigation opened because of granting this petition would result in an order concerning the notification and remedy of a safety-related defect. Therefore, upon full consideration of the information presented in the petition and the potential risks to safety, the petition is denied. The denial of this petition does not foreclose the Agency from taking further action if warranted or the p

RQ10003 · 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.