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2006 Toyota 4RUNNER

Owner reports · Recalls · Investigations

More warning signs than most 4RUNNER years

Owner complaints for the 2006 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

270 reports with mileage · 111 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 143 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Suspension. Review the 65 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 30 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

28 crash reports3 fire reports15 injury reports

Unknown Or Other complaints

74 reports
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140,000 miles · Jun 2, 2018
Unknown Or OtherFire

THE VEHICLE WAS TRAVELING ON IN TOWN HIGHWAY SPEEDS BETWEEN 25-55 MILES PER HOUR FOR APPROXIMATELY 10 MILES WHILE TOWING A 14 FOOT TRAILER. AS I APPROACHED AN INTERSTATE ON RAMP IN WINCHESTER, KENTUCKY, I SMELLED SMOKE AND PULLED OVER TO INSPECT THE VEHICLE. THE SOURCE OF THE SMOKE/FLAME WAS COMING FROM THE REAR MUFFLER PIPE F…

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THE VEHICLE WAS TRAVELING ON IN TOWN HIGHWAY SPEEDS BETWEEN 25-55 MILES PER HOUR FOR APPROXIMATELY 10 MILES WHILE TOWING A 14 FOOT TRAILER. AS I APPROACHED AN INTERSTATE ON RAMP IN WINCHESTER, KENTUCKY, I SMELLED SMOKE AND PULLED OVER TO INSPECT THE VEHICLE. THE SOURCE OF THE SMOKE/FLAME WAS COMING FROM THE REAR MUFFLER PIPE FIBERGLASS HEAT INSULATOR (TOYOTA PART NUMBER 58155-60100). THE FIBERGLASS HEAT INSULATOR HAD DRY ROTTED AND WAS RESTING ON THE REAR MUFFLER PIPE AS IT BENDS OVER THE REAR AXLE. I WAS ABLE TO CRAWL UNDER THE TRUCK AND PULL THE INSULATOR OFF THE BOTTOM OF THE TRUCK AND EXTINGUISH ON THE SIDE OF THE ROAD. AFTER DISCUSSING WITH TOYOTA DEALER, NO PRODUCT RECALL HAS BEEN ISSUED BUT THE PART HAS NOW BEEN REMANUFACTURERED OUT OF TIN/ALUMINUM TO REDUCE THIS RISK. DUE TO THE HIGH RISK FOR FIRE / INJURY THAT IS VERY NEAR THE GAS TANK, SHOULD THIS BE ISSUED AS A MANUFACTURER RECALL?

NHTSA ODI #11099300

62,502 miles · Apr 19, 2017
Unknown Or Other

I AM ASKING FOR YOU TO CANCEL THE SALE OF THE 2006 TOYOTA 4 RUNNER THAT I PURCHASED ON 3/22/2017 AND RETURN MY CASH DEPOSIT OF $2,000 AND REIMBURSE ME FOR THE GAS IT TOOK ME TO DRIVE IT HOME AND THE EXTRA KEY I PURCHASED. I AM ACTUALLY AFRAID TO TAKE IT BACK TO YOUR DEALERSHIP, BUT IF I HAVE TO I WILL. THE FACTS ARE BELOW PU…

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I AM ASKING FOR YOU TO CANCEL THE SALE OF THE 2006 TOYOTA 4 RUNNER THAT I PURCHASED ON 3/22/2017 AND RETURN MY CASH DEPOSIT OF $2,000 AND REIMBURSE ME FOR THE GAS IT TOOK ME TO DRIVE IT HOME AND THE EXTRA KEY I PURCHASED. I AM ACTUALLY AFRAID TO TAKE IT BACK TO YOUR DEALERSHIP, BUT IF I HAVE TO I WILL. THE FACTS ARE BELOW PURCHASED CAR IN BOULDER 3/22/2017 2006 TOYOTA 4 RUNNER RUST DAMAGE / DEALER STATED RUST WAS BECAUSE CAR WAS FROM NY, BUT WOULD NOT GET WORSE AND WAS JUST SUPERFICIAL RUST. PURCHASED CAR AND SET AN APPT. WITH PUEBLO TOYOTA 3/24/2017 TO MOUNT SPARE TIRE AND DO AND INSPECTION TOYOTA COULD NOT MOUNT SPARE TIRE AND STATED VEHICLE WAS IN GOOD CONDITION EXCEPT FOR SEVERE RUST DAMAGE AND MAY COST DOUBLE TO DO REPAIRS IN THE FUTURE BECAUSE OF RUST DAMAGE. TOOK CAR TO PRO-MASTERS ON 3/24/2017 AND THEY INFORMED MY SON THAT THE RUST WAS SEVERE AND THEY WOULD NOT ATTEMPT TO REPAIR, BUT ESTIMATED COSTS TO REPAIR THE REAR END TO BE $6,000 TO $7,000 REVIEWED ON INTERNET AND THERE WERE SEVERAL COMPLAINTS ABOUT RUST DAMAGE ON 4-RUNNERS, TUNDRAS, AND TACOMA?S FROM N.E. STATES. COMMENTS WERE ALSO MADE THAT THE VEHICLE WITH SEVERE RUST DAMAGE COULD BE UNSAFE TO DRIVE. TOOK CAR TO INDIVIDUAL WHO RESTORES CARS AND HE SAID THE RUST WAS SO SEVERE AND CAR WAS NOT WORTH REPAIRING AND UNSAFE AND HE WOULD NOT LET HIS WIFE OR FAMILY DRIVE IT. TOOK CAR TO CUSTOM CARE REPAIR SHOP TO REVIEW RUST AND INSTALL SPARE TIRE AND THEY CONCURRED THAT THE RUST WAS SEVERE AND UNSAFE AND COULD NOT INSTALL SPARE TIRE. I CALLED PRO-MASTERS TO CONFIRM WHAT THEY HAD INSPECTED AND IF I COULD GIVE HIS NAME AND PHONE NUMBER IF ASKED. HE INFORMED ME THAT RUST WAS SO SEVERE THAT IF HE ATTEMPTED TO SECURE SPARE TIRE, THAT THE FRAME HOLDING IT WAS SO THIN HE COULD NOT GUARANTEE IT WOULD NOT FALL OFF & HE INFORMED ME THAT AS THE VEHICLE GETS WET THE FRAME BECOMES WORSE

NHTSA ODI #10980728

179,000 miles · Apr 7, 2017
StructureUnknown Or Other

WE HAVE JUST BEEN INFORMED THAT THE FRAME OF OUR 2006 TOYOTA 4RUNNER IS COMPLETELY RUSTED OUT. THIS HAPPENED WHILE I WAS DRIVING DOWN THE ROAD. THIS CAUSED THE CONTROL JOINT TO COME LOOSE, AND GIVING ME VERY LITTLE CONTROL OVER THE VEHICLE. THE RUST IS AN ISSUES...AND A HUGE SAFETY HAZARD. I WAS ABLE TO GET THE CAR TO THE SI…

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WE HAVE JUST BEEN INFORMED THAT THE FRAME OF OUR 2006 TOYOTA 4RUNNER IS COMPLETELY RUSTED OUT. THIS HAPPENED WHILE I WAS DRIVING DOWN THE ROAD. THIS CAUSED THE CONTROL JOINT TO COME LOOSE, AND GIVING ME VERY LITTLE CONTROL OVER THE VEHICLE. THE RUST IS AN ISSUES...AND A HUGE SAFETY HAZARD. I WAS ABLE TO GET THE CAR TO THE SIDE OF THE ROAD, AND CALL A TOW TRUCK, BUT HAD THIS HAPPENED DRIVING DOWN THE EXPRESS WAY I CANNOT IMAGINE THE END RESULT. TOYOTA IS AWARE OF THE RUST ISSUES. THEY HAVE GREAT VEHICLES THAT WILL RUN FOREVER IF YOU TAKE CARE OF THEM, BUT THIS ISSUE IS NOT A CARE ISSUE - IS A MANUFACTURE ISSUE.

NHTSA ODI #10971169

135,880 miles · Mar 11, 2017
Unknown Or Other

DRIVING TO WORK ON 3-6-17. IT WAS 34 F AT 8:15 AM. TURNED ON THE REAR WINDOW DEFROSTER ABOUT ONE MILE FROM HOME. DROVE ANOTHER 0.5 MILES AND STOPPED AT RED LIGHT. ABOUT 15 SECONDS INTO THE RED LIGHT MY REAR WINDOW IMPLODED AND FELL INTO THE REAR CARGO AREA. VEHICLE WAS STATIONARY AND NO OTHER VEHICLE STRUCK ME. DROVE BACK …

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DRIVING TO WORK ON 3-6-17. IT WAS 34 F AT 8:15 AM. TURNED ON THE REAR WINDOW DEFROSTER ABOUT ONE MILE FROM HOME. DROVE ANOTHER 0.5 MILES AND STOPPED AT RED LIGHT. ABOUT 15 SECONDS INTO THE RED LIGHT MY REAR WINDOW IMPLODED AND FELL INTO THE REAR CARGO AREA. VEHICLE WAS STATIONARY AND NO OTHER VEHICLE STRUCK ME. DROVE BACK HOME AND CLEANED UP THE GLASS AND SAW NO EVIDENCE OF A ROCK OR PELLET OR BULLET WITH THE GLASS OR IN THE VEHICLE. ONLINE DISCUSSIONS INDICATE THE REAR DEFROSTER MAY HAVE OVERHEATED AND SHATTERED GLASS. I HAVE 3 PHOTOS ON FILE IN COMPUTER, BUT NOT IN CORRECT FORMAT. TRIED TO UPLOAD, BUT WAS NOT ABLE TO DO SO.

NHTSA ODI #10960127

95,000 miles · May 11, 2016
Unknown Or Other

FRAME ROT EXCESSIVE RUST ON FRAME, COMPROMISING THE INTEGRITY AND PUTTING THE PASSENGERS LIVES AT RISK IF THE FRAME SHOULD FAIL. CONTACTED TOYOTA, THEY INFORMED ME THAT NO RECALLS OR SERVICE CAMPAIGNS ARE AVAILABLE FOR FRAME ROT ON 4RUNNERS, HOWEVER TACOMAS, SEQUOIAS, AND TUNDRAS HAVE HAD FRAME ROT RECALLS. VERY UNHAPPY AS TO HO…

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FRAME ROT EXCESSIVE RUST ON FRAME, COMPROMISING THE INTEGRITY AND PUTTING THE PASSENGERS LIVES AT RISK IF THE FRAME SHOULD FAIL. CONTACTED TOYOTA, THEY INFORMED ME THAT NO RECALLS OR SERVICE CAMPAIGNS ARE AVAILABLE FOR FRAME ROT ON 4RUNNERS, HOWEVER TACOMAS, SEQUOIAS, AND TUNDRAS HAVE HAD FRAME ROT RECALLS. VERY UNHAPPY AS TO HOW THIS MATTER IS BEING TREATED ESPECIALLY AFTER ALL THE OTHER FRAME ISSUES FROM TOYOTA VEHICLES.

NHTSA ODI #10864455

122,696 miles · Nov 7, 2015
SuspensionUnknown Or Other

PURCHASED A TCUV IN 2012 AND LIVE IN EASTERN NC. TOOK VEHICLE IN FOR DIAGNOSTIC AND WAS TOLD THAT FRAME WAS SEVERELY RUSTED. WAS NOT MADE AWARE WHEN PURCHASED. CALLED TOYOTA AND AWAITING A CALL BUT REP SAYS THAT ITS OUT OF WARRANTY AND WILL NOT ASSIST. VEHICLE CAN'T GO FROM FINE TO SEVERE IN 3 YEARS AND WAS CERTIFIED BY TOYO…

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PURCHASED A TCUV IN 2012 AND LIVE IN EASTERN NC. TOOK VEHICLE IN FOR DIAGNOSTIC AND WAS TOLD THAT FRAME WAS SEVERELY RUSTED. WAS NOT MADE AWARE WHEN PURCHASED. CALLED TOYOTA AND AWAITING A CALL BUT REP SAYS THAT ITS OUT OF WARRANTY AND WILL NOT ASSIST. VEHICLE CAN'T GO FROM FINE TO SEVERE IN 3 YEARS AND WAS CERTIFIED BY TOYOTA TO BE FINE OR "LIKE NEW". SOMETHING HAS TO BE DONE AND A RECALL HAS TO BE ISSUED. THIS IS AN ONGOING ISSUES THAT MANY INDIVIDUALS ARE EXPERIENCING AND A SEVERE SAFETY HAZARD SHOULD SOMETHING GO WRONG ON THE FREEWAY. NO ONE SHOULD HAVE TO DIE BEFORE SOMETHING GETS DONE AND IT WOULD BE IN POOR TASTE FOR THIS TO HAPPEN BEFORE THIS COMPLAINT MOVES FROM ITS CURRENT STATUS TO INVESTIGATION BY OUR GOVERNMENT TO PROTECT US FROM COMPANIES LIKE THIS.

NHTSA ODI #10789040

107,036 miles · Aug 22, 2015
Unknown Or Other

I AM THE ORIGINAL OWNER OF THIS VEHICLE AND HAVE KEPT THIS VEHICLE IN EXCELLENT CONDITION. I HAVE SPENT LOTS OF MONEY ON ROUTINE MAINTENANCE OF THIS VEHICLE AS WELL AS MORE INVOLVED TUNE-UPS. I HAVE ALSO WASHED THIS VEHICLE REGULARLY INCLUDING THE UNDERSIDE OF THIS VEHICLE, ESPECIALLY DURING THE WINTER MONTHS TO CLEAN OFF ROAD …

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I AM THE ORIGINAL OWNER OF THIS VEHICLE AND HAVE KEPT THIS VEHICLE IN EXCELLENT CONDITION. I HAVE SPENT LOTS OF MONEY ON ROUTINE MAINTENANCE OF THIS VEHICLE AS WELL AS MORE INVOLVED TUNE-UPS. I HAVE ALSO WASHED THIS VEHICLE REGULARLY INCLUDING THE UNDERSIDE OF THIS VEHICLE, ESPECIALLY DURING THE WINTER MONTHS TO CLEAN OFF ROAD SALT. THERE ARE NO EXISTING MECHANICAL OR OTHER PROBLEMS WITH THIS VEHICLE AND CAN POTENTIALLY DRIVE THIS VEHICLE FOR MANY MORE YEARS TO COME. HOWEVER, DURING A ROUTINE VISIT TO MY LOCAL TOYOTA SERVICE CENTER, I WAS TOLD THAT THERE EXISTS A LARGE PERFORATION ON THE FRAME OF THIS VEHICLE DUE TO RUST. I WAS FURTHER TOLD THAT THIS FRAME PERFORATION MAKES THIS VEHICLE UNSAFE TO DRIVE AND WAS INSTRUCTED NOT TO USE THIS VEHICLE SINCE IT COULD RESULT IN A DEADLY SITUATION FOR THE OCCUPANTS OF THIS VEHICLE IF THE FRAME BROKE (WHICH I WAS TOLD WILL HAPPEN) WHILE DRIVING. I AM NOW UNABLE TO USE THIS VEHICLE DUE TO SAFETY CONCERNS. I CALLED TOYOTA HQ TO COMPLAIN, BUT THEY TOLD ME THAT THEY CANNOT HELP ME AND THAT MY VEHICLE IS OUT OF WARRANTY.

NHTSA ODI #10758536

116,000 miles · Jun 9, 2015
Unknown Or Other

THE FRAME RUST ON MY 2006 4RUNNER IS BECOMING EXTENSIVE AND THE AMOUNT FOR THE YEAR THAT CAN BECOME POTENTIALLY DANGEROUS IN THE NEAR FUTURE IS INEXCUSABLE QUALITY AT BEST. THERE ARE AREAS ON THE FRAME THAT I AM ABLE TO PUSH IN WITH MY FINGERS BECAUSE OF THE RUST. THERE ARE ALSO OTHER PARTS WHERE OTHER PARTS THAT HAVE BEEN BOLTE…

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THE FRAME RUST ON MY 2006 4RUNNER IS BECOMING EXTENSIVE AND THE AMOUNT FOR THE YEAR THAT CAN BECOME POTENTIALLY DANGEROUS IN THE NEAR FUTURE IS INEXCUSABLE QUALITY AT BEST. THERE ARE AREAS ON THE FRAME THAT I AM ABLE TO PUSH IN WITH MY FINGERS BECAUSE OF THE RUST. THERE ARE ALSO OTHER PARTS WHERE OTHER PARTS THAT HAVE BEEN BOLTED ON TO THE FRAME OR WELDED ON HAVE COMPLETELY RUSTED OFF. I AM ABLE TO IN SPOTS PEEL THE FRAME APART PIECE BY PIECE LIKE AN ONION ONLY EXPOSING THE RIDICULOUSLY THIN AMOUNT THAT IS LEFT. I HAVE A 2003 CHEVY PICKUP THAT DRIVES IN SAME CONDITIONS AS THE 4RUNNER AND LOOKS YEARS NEWER UNDERNEATH THAN THE 4RUNNER THAT IS ACTUALLY THE NEWER OF THE TWO. I WOULD LIKE TO MAKE IT KNOWN THAT FRAME RUST FROM OTHER RESEARCH REGARDING THESE VEHICLES AS WELL AS MY OWN IS SOMETHING WORTHY OF A TOYOTA RECAL OR BUY BACK PROGRAM SUCH AS WHAT WAS DONE WITH OTHER GENERATION TACOMAS.

NHTSA ODI #10724412

166,260 miles · May 10, 2015
Unknown Or Other

WHILE DRIVING LAST EVENING, MY REAR WINDOW EXPLODED.

NHTSA ODI #10715530

109,000 miles · May 27, 2014
SuspensionUnknown Or Other

TL* THE CONTACT OWNS A 2006 TOYOTA 4RUNNER. THE CONTACT STATED THAT THERE WAS AN EXTENSIVE LEAK OF AN UNKNOWN FLUID UNDER THE FRONT OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE HYDRAULIC SYSTEM NEEDED TO BE REPLACED. ALSO, THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR A SECOND OPI…

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TL* THE CONTACT OWNS A 2006 TOYOTA 4RUNNER. THE CONTACT STATED THAT THERE WAS AN EXTENSIVE LEAK OF AN UNKNOWN FLUID UNDER THE FRONT OF THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN DIAGNOSED THAT THE HYDRAULIC SYSTEM NEEDED TO BE REPLACED. ALSO, THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR A SECOND OPINION WHO DIAGNOSED THAT THE SUSPENSION SYSTEM NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 109,000.

NHTSA ODI #10594392

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.