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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

Structure complaints

185 reports
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217,000 miles · Jul 23, 2018
Structure

TL* THE CONTACT OWNS A 2005 TOYOTA 4RUNNER. WHILE THE VEHICLE WAS UNDERGOING ROUTINE MAINTENANCE AT DAYTON TOYOTA (2291 US-130, DAYTON, NJ 08810, (732) 329-9191), THE CONTACT WAS INFORMED THAT THERE WAS SEVERE RUST TO THE SUBFRAME OF THE VEHICLE. THE CONTACT WAS INFORMED THAT THE SUBFRAME NEEDED TO BE REPLACED. THE VEHICLE WAS N…

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TL* THE CONTACT OWNS A 2005 TOYOTA 4RUNNER. WHILE THE VEHICLE WAS UNDERGOING ROUTINE MAINTENANCE AT DAYTON TOYOTA (2291 US-130, DAYTON, NJ 08810, (732) 329-9191), THE CONTACT WAS INFORMED THAT THERE WAS SEVERE RUST TO THE SUBFRAME OF THE VEHICLE. THE CONTACT WAS INFORMED THAT THE SUBFRAME NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 217,000.

NHTSA ODI #11113094

Mileage unknown · Jul 13, 2018
Structure

EXCESSIVE FRAME RUSTING AND ROTTING. TOYOTA HAS DONE DECAL ON OTHER VEHICLES SUCH AS THE TACOMA AND OTHERS BUT FREQUENTLY NEGLECTS THE 4RUNNER MODELS. FOR EXAMPLE THE RECALL FOR THE SECONDARY AIR PUMP FOR THE V8'S INCLUDED THE TUNDRA AND SEQUOIA BUT NEGLECTED THE 4RUNNER WHICH ALL THREE VEHICLES SHARE THE SAME IDENTICAL MOTOR. I…

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EXCESSIVE FRAME RUSTING AND ROTTING. TOYOTA HAS DONE DECAL ON OTHER VEHICLES SUCH AS THE TACOMA AND OTHERS BUT FREQUENTLY NEGLECTS THE 4RUNNER MODELS. FOR EXAMPLE THE RECALL FOR THE SECONDARY AIR PUMP FOR THE V8'S INCLUDED THE TUNDRA AND SEQUOIA BUT NEGLECTED THE 4RUNNER WHICH ALL THREE VEHICLES SHARE THE SAME IDENTICAL MOTOR. I BELIEVE TOYOTA NEGLECT THE 4RUNNER LINE DUE TO THE HIGH VOLUME OF SALES COMPARED TO OTHER MODELS.

NHTSA ODI #11111258

Mileage unknown · Jul 1, 2018
Structure

I HAVE TOYOTA 4RUNNER 2005 AND WHEN I WENT TO THE DEALER TO CHANGE MY OIL I WAS TOLD THAT THE CAR HAS FRAME DAMAGE AND IT IS DANGEROUS TO DRIVE. THE CAR IS IN EXCELLENT CONDITION,BUT THIS PROBLEM WAS UNEXPECTED. I NEVER BEEN TOLD BY MY DEALER OR TOYOTA COMPANY THAT THIS IS A COMMON ISSUE FOR THIS MAKE AND THAT THERE WAS A RECALL…

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I HAVE TOYOTA 4RUNNER 2005 AND WHEN I WENT TO THE DEALER TO CHANGE MY OIL I WAS TOLD THAT THE CAR HAS FRAME DAMAGE AND IT IS DANGEROUS TO DRIVE. THE CAR IS IN EXCELLENT CONDITION,BUT THIS PROBLEM WAS UNEXPECTED. I NEVER BEEN TOLD BY MY DEALER OR TOYOTA COMPANY THAT THIS IS A COMMON ISSUE FOR THIS MAKE AND THAT THERE WAS A RECALL FEW YEARS AGO FOR THIS PROBLEM. I AM NOT ABLE TO AFFORD NEW CAR AND THIS IS PUTTING A HARDSHIP ON MY FAMILY AND OUR SAFETY. I CALL TOYOTA BUT I WAS TOLD THAT THEY ARE NOT ABLE TO HELP ME IN ANY WAY. WHO CAN ASSIST IN THIS SITUATION?

NHTSA ODI #11104962

60,000 miles · Jun 10, 2018
Structure

RIGHT FRONT SUBFRAME HAS RUST THAT HAS STEADILY GOTTEN WORSE DESPITE A 2ND ATTEMPT TO GRIND RUST OFF REPAINT AND UNDERCOAT. THIS SHOULD NOT BE HAPPENING ON VEHICLE THAT HAS BEEN METICULOUSLY MAINTAINED TOP TO BOTTOM INCLUDING SALT AND GRIME REMOVAL CONSISTENTLY SINCE PURCHASED BRAND NEW . THIS US SOON GOING TO BREAK RESULTING IN…

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RIGHT FRONT SUBFRAME HAS RUST THAT HAS STEADILY GOTTEN WORSE DESPITE A 2ND ATTEMPT TO GRIND RUST OFF REPAINT AND UNDERCOAT. THIS SHOULD NOT BE HAPPENING ON VEHICLE THAT HAS BEEN METICULOUSLY MAINTAINED TOP TO BOTTOM INCLUDING SALT AND GRIME REMOVAL CONSISTENTLY SINCE PURCHASED BRAND NEW . THIS US SOON GOING TO BREAK RESULTING IN VEHICLE NOT PASSING INSPECTION. THIS SHOULD BE RECTIFIED LIKE THE TACOMA ONE PICTURE US THE SIDE WITH HOLES AND UNDERCOATING I HAVE BEEN FIXING THE OTHER SIFE HAS NO ISSUE

NHTSA ODI #11100771

100,000 miles · May 9, 2018
Structure

I PURCHASED THIS VEHICLE NEW IN 2005 IN VIRGINIA. IT HAS SPENT THE LAST 13 YEARS IN NORTH CAROLINA WHERE SALT IS RARELY USED ON THE ROADS. I OCCASIONALLY TAKE IT ON THE BEACH BUT ALWAYS FULLY SPRAY THE UNDERBODY WITH FRESH WATER AFTERWARDS. ABOUT 2 YRS AGO I STARTED NOTICING SEVERE RUST NEAR CRITICAL WELDS ON THE FRAME. I CLEA…

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I PURCHASED THIS VEHICLE NEW IN 2005 IN VIRGINIA. IT HAS SPENT THE LAST 13 YEARS IN NORTH CAROLINA WHERE SALT IS RARELY USED ON THE ROADS. I OCCASIONALLY TAKE IT ON THE BEACH BUT ALWAYS FULLY SPRAY THE UNDERBODY WITH FRESH WATER AFTERWARDS. ABOUT 2 YRS AGO I STARTED NOTICING SEVERE RUST NEAR CRITICAL WELDS ON THE FRAME. I CLEANED, PRIMED AND PAINTED THESE AREAS THE BEST I COULD COULD TO TRY AND SLOW DOWN THE RUST. YESTERDAY WHEN GETTING TIRES MOUNTED MY MECHANIC TOLD ME THE RUST IS GETTING TO THE POINT IT IS A SAFETY ISSUE. I'M GETTING READY TO DRIVE CROSS COUNTRY THE END OF THE MONTH SO THIS WAS NOT GOOD NEWS. I HAVE MAINTAINED THE TRUCK METICULOUSLY AND ONLY HAVE 130K MILES ON IT. I FIND IT HARD TO BELIEVE TOYOTA HAS NOT ADDRESSED THIS PROBLEM. I CAN'T AFFORD A NEW TRUCK AND SELLING THIS ONE, THOUGH IT LOOKS AND DRIVES MINT, WILL BE DIFFICULT OR IMPOSSIBLE ONCE THE FRAME IS INSPECTED. I HAVE NEVER HAD A VEHICLE RUST OUT LIKE THIS THOUGH I OWNED MANY WHEN I LIVED IN THE HEAVY SALT USING STATE OF NY YEARS AGO. THERE IS DEFINITELY A PROBLEM WITH THESE 4RUNNERS THAT TOYOTA IS FAILING TO ADDRESS, I JUST HOPE IT DOESN'T DECIDE TO FAIL WHEN I'M 2000 MILES FROM HOME AND DRIVING 70 MPH.

NHTSA ODI #11092644

135,000 miles · Feb 26, 2018
Structure

FRAME ON 4RUNNER RUSTED IN NUMEROUS LOCATIONS AND THE A ARM RUSTED OFF WHILE MY WIFE AND 2 YEAR OLD DAUGHTER WERE DRIVING IN IT. LUCKILY THEY WERE UNINJURED.

NHTSA ODI #11075098

160,000 miles · Jan 22, 2018
Service BrakesStructure

I PURCHASED THIS BEAUTIFUL USED BLACK 2005 4RUNNER IN OCTOBER OF 2016 AND THE BODY STILL LOOKS BEAUTIFUL - NO VISIBLE RUST ANYWHERE ON DOORS ETC - BUT I TOOK IT IN TO AUTO CRAFTSMEN IN MONTPELIER, VT TO CHECK MY BRAKES AND REPLACE A COUPLE OF BULBS TO GET THE VEHICLE READY FOR VERMONT STATE INSPECTION AS THE CAR IS DUE FOR INSPE…

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I PURCHASED THIS BEAUTIFUL USED BLACK 2005 4RUNNER IN OCTOBER OF 2016 AND THE BODY STILL LOOKS BEAUTIFUL - NO VISIBLE RUST ANYWHERE ON DOORS ETC - BUT I TOOK IT IN TO AUTO CRAFTSMEN IN MONTPELIER, VT TO CHECK MY BRAKES AND REPLACE A COUPLE OF BULBS TO GET THE VEHICLE READY FOR VERMONT STATE INSPECTION AS THE CAR IS DUE FOR INSPECTION IN FEB 2018 AND I WANTED TO HEAD UP ANY MAINTENANCE NEEDED. WAS SHOCKED WHEN I WENT BACK AND CRAFTSMEN TOLD ME NOT TO PUT ANY MONEY INTO THE VEHICLE - THAT THE FRAME WAS BROKEN, HAD MAJOR HOLE IN IT AND THAT THE FRAME WAS TOO RUSTY TO PATCH THE HOLE - HOLY UNEXPECTED BATMAN. PARTIAL NOTES FROM CRAFTSMEN AUTO ON 12/28/2017 ARE AS FOLLOWS: "UNDER BODY IS VERY RUSTY & THE FRAME IS BROKEN ...MUFFLER IS BROKEN OFF AND EVERY FLANGE IS RUSTED AND LEAKING ...BRAKES ARE SHAKING WHEN APPLIED...ROTORS HAVE A SIGNIFICANT RUST RIDGE...THE BRAKE LINES ARE VERY RUSTY...BECAUSE OF THE BROKEN FRAME AND THE AMOUNT OF RUST ON THE UNDERBODY, IT WON'T PASS VT STATE INSPECTION THE END OF FEB." I BOUGHT THIS VEHICLE IN A PRIVATE SALE IN OCTOBER OF 2016 FOR $7,200 BUT HAD TO PAY SALES TAX TO THE VERMONT DMV FOR A VEHICLE PURCHASED FOR $8,000 BECAUSE IT WAS IN GREAT SHAPE, LOOKED TERRIFIC AND WAS SUPPOSEDLY WORTH THAT EXTRA MONEY. I AD SPENT THAT MONEY EXPECTING TO GET A THREE OR FOUR YEARS OUT OF THE VEHICLE AND HAVE MAINTAINED IT WELL WITH SYNTHETIC OIL CHANGES AND USING EXPENSIVE GAS WHEN IT'S COLD OUT AND SPENT $850 ON NEW TIRES JUST THIS FALL. I LOVE TOYOTA. MY DISABLED HUSBAND AND MY TWO DAUGHTERS ALL DRIVE (USED) TOYOTAS (TWO PRIUSES AND A COROLLA). AM WONDERING IF TOYOTA CAN DO ANYTHING TO STAND BEHIND THEIR PRODUCT HERE? THE ENGINE FEELS STRONG (IT'S A TOYOTA!) AND THE 4RUNNER POWER AND ALL-WHEEL DRIVE HAS BEEN GREAT HERE IN RURAL VERMONT. THANK YOU FOR YOUR CONSIDERATION. BEST, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).' *PM

NHTSA ODI #11064169

118,000 miles · Jan 17, 2018
Structure

I JUST WANTED TO ADD MY 2005 TOYOTA 4RUNNER TO THE COMPLAINT LIST WITH HIGHLY COMPROMISED STRUCTURAL INTEGRITY DUE TO EXTREME RUST. THE VEHICLE HAS 118,000 MILES WITH ONLY ONE OWNER AND THE VEHICLE WAS GARAGED THE ENTIRE TIME. THERE ARE CRACKS AND HOLES IN MY REAR FRAME THAT HAS LED OUR MECHANIC TO DEEM THE VEHICLE UNSAFE. HE HA…

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I JUST WANTED TO ADD MY 2005 TOYOTA 4RUNNER TO THE COMPLAINT LIST WITH HIGHLY COMPROMISED STRUCTURAL INTEGRITY DUE TO EXTREME RUST. THE VEHICLE HAS 118,000 MILES WITH ONLY ONE OWNER AND THE VEHICLE WAS GARAGED THE ENTIRE TIME. THERE ARE CRACKS AND HOLES IN MY REAR FRAME THAT HAS LED OUR MECHANIC TO DEEM THE VEHICLE UNSAFE. HE HAS SUGGESTED WE REPLACE THIS VEHICLE AS SOON AS WE CAN. PRIOR TO COMING ON THIS COMPLAINT SITE, I WAS UNDER THE IMPRESSION THE WE HAD THE UNFORTUNATE LUCK OF PURCHASING A LEMON; INSTEAD IT APPEARS THIS IS A KNOWN ISSUE THAT IS BEING IGNORED AND SWEPT UNDER THE RUG. I AM APPALLED AT THE INACTION OF TOYOTA AND THE NHTSA REGARDING THIS STRUCTURAL ISSUE.

NHTSA ODI #11063251

102,516 miles · Dec 12, 2017
StructureSuspension

2005 TOYOTA 4RUNNER STRUCTURAL FRAME RAPID OXIDATION TO STRUCTURE CAUSING LEFT FRONT CONTROL ARM TO FRAME (AS WELL AS FRAME ITSELF) TO BREAK WHILE IN MOTION AT SLOW SPEED LEAVING DRIVEWAY. I HAVE CONTACTED TOYOTA CASE# 1712112893 TO ASK WHY THERE IS NO BUYBACK PROGRAM ON FRAMES THAT THEY PRODUCED IN 2004 THAT WERE FOUND DEFECTIV…

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2005 TOYOTA 4RUNNER STRUCTURAL FRAME RAPID OXIDATION TO STRUCTURE CAUSING LEFT FRONT CONTROL ARM TO FRAME (AS WELL AS FRAME ITSELF) TO BREAK WHILE IN MOTION AT SLOW SPEED LEAVING DRIVEWAY. I HAVE CONTACTED TOYOTA CASE# 1712112893 TO ASK WHY THERE IS NO BUYBACK PROGRAM ON FRAMES THAT THEY PRODUCED IN 2004 THAT WERE FOUND DEFECTIVE IN TACOMA'S/4RUNNERS THAT WERE ALSO USED FOR THEIR 2005 MODEL PRODUCTION 4RUNNERS. TOYOTA REP TOLD MYSELF THAT NO CAMPAIGNS WOULD EXIST UNLESS OTHERWISE TOLD SO (OR PERHAPS INVESTIGATED FOR THEIR PRIOR ACKNOWLEDGED DEFECTIVE FRAMES USED IN PREVIOUS MODEL YEARS). THOUGH I AM LUCKY THAT THIS OCCURRED AT SLOW SPEED I DON'T KNOW HOW MANY OTHER AMERICANS MAY FACE MY SITUATION WHILE AT 60-70MPH ON THE HIGHWAY WITH THEIR FAMILIES WHOM TRUST TOYOTA FOR THEIR SAFETY AND PRODUCT RELIABILITY THAT END IN ULTIMATE TRAGEDY. I'VE INCLUDED PHOTOS AS WELL AS A CLEAN CARFAX REPORT TO SHOW NO PRIOR INCIDENTS. THANK YOU.

NHTSA ODI #11054205

40,000 miles · Dec 7, 2017
Structure

TL* THE CONTACT OWNS A 2005 TOYOTA 4RUNNER. THE CONTACT STATED THAT THERE WAS EXTENSIVE RUST ON THE FRAME OF THE VEHICLE, WHICH HAD COMPLETELY ROTTED DUE TO THE FAILURE. THE FRAME WAS COATED, BUT THE FAILURE CONTINUED. BOTH DEALERS (SANSONE TOYOTA, 90-100 US-1, AVENEL, NJ 07001, (732) 815-0500 AND BAY RIDGE TOYOTA, 6401 6TH AVE,…

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TL* THE CONTACT OWNS A 2005 TOYOTA 4RUNNER. THE CONTACT STATED THAT THERE WAS EXTENSIVE RUST ON THE FRAME OF THE VEHICLE, WHICH HAD COMPLETELY ROTTED DUE TO THE FAILURE. THE FRAME WAS COATED, BUT THE FAILURE CONTINUED. BOTH DEALERS (SANSONE TOYOTA, 90-100 US-1, AVENEL, NJ 07001, (732) 815-0500 AND BAY RIDGE TOYOTA, 6401 6TH AVE, BROOKLYN, NY 11220, (888) 995-2299) PROVIDED NO SOLUTION AND THE VEHICLE WAS EXCLUDED FROM A MANUFACTURER RECALL. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE VEHICLE WAS EXCLUDED FROM A MANUFACTURER RECALL. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.

NHTSA ODI #11052906

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.