Power Train. Review the 51 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Vehicle Speed Control. Review the 39 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Steering. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

35 crash reports4 fire reports16 injury reports

What owners actually said

224 reports

19,279 miles · Jul 15, 2006

Power Train

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SUMMARY: 2005 TOYOTA HIGHLANDER HAS SIGNIFICATION HESITATION WHEN ACCELERATING. 1.) EVENTS LEADING TO FAILURE: FAILURE IS CONSTANT SINCE IT IS PRESENT DURING NORMAL OPERATION OF VEHICLE; 2. FAILURE AND ITS CONSEQUENCES: IF I ACCELERATE (STEP ON THE GAS PEDAL), THE VEHICLE HESITATES/LAGS/DIES FOR A FEW SECONDS BEFORE VEHICLE WILL BEGIN MOVING. THE CONSEQUENCES OF THIS FAILURE IS THAT THERE IS CONSTANT DANGER WHEN MAKING A LEFT TURN DURING GAPS IN ONCOMING TRAFFIC. ALTHOUGH A MARGIN OF SAFETY IS ALWAYS USED, I AM AFRAID THAT ONE DAY, SOMETHING MAY HAPPEN TO REDUCE THIS MARGIN, E.G. ONCOMING CAR IS ACCELERATING VERY QUICKLY OR THE HESITATION WORSENS FROM A FEW SECONDS TO SEVERAL SECONDS; 3.) WHAT WAS DONE TO CORRECT THE FAILURE: NOTHING. CONTACTED TWO TOYOTA DEALERS, DON DAVIS TOYOTA AND FREEMAN TOYOTA, AND WAS TOLD BY JOHN AND TIM, SERVICE DEPT ADVISORS, THAT THIS IS NORMAL FOR TOYOTAS SINCE ADOPTING FLY-BY OR DRIVE-BY WIRE. BOTH AUTHORIZED TOYOTA SERVICE DEPARTMENT EMPLOYEES SAY THAT TOYOTA IS AWARE OF THIS COMPLAINT BUT THAT THERE IS NOTHING TO BE DONE; THIS IS NORMAL OPERATING PROCEDURE AND FALLS WITHIN THEIR DESIGN PARAMETERS. NO PARTS WILL BE REPAIRED OR REPLACED. THIS SEEMS TO BE A DANGEROUS DESIGN FLAW BY TOYOTA. WHILE THEY ACKNOWLEDGE THE EXISTENCE OF THE PROBLEM, THEY DO NOT FEEL THEY NEED TO RESOLVE AND OFFER NO SOLUTION. *JB

NHTSA ODI #10162467

25 miles · Jul 13, 2006

Power Train

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2005 TOYOTA HIGHLANDER. ISSUES WITH AUTOMATIC TRANSMISSION SHIFTING PROPERLY. SHIFT LAGS SEVERELY WHEN GAS PEDAL IS ENGAGED CAUSING VEHICLE TO LAG BEHIND AND NOT CATCH UP TO THE PROPER SPEED. VEHICLES BEHIND IT ARE IN A POSITION TO SEVERELY IMPACT THE REAR BUMPER BECAUSE VEHICLE IS NOT MOVING. HAVE HAD CAR TO DEALER AND THEY CLAIM THERE'S NOTHING THEY CAN DO. HAVE ASKED THEM TO CHECK SERVICE BULLETINS AND SEE ABOUT RESETTING THE COMPUTER WHICH TOYOTA CLAIMS IS THE PROBLEM. RESETTING THE COMPUTER DOESN'T WORK. *JB

NHTSA ODI #10162363

13,750 miles · Jul 4, 2006

Power TrainVehicle Speed ControlCrash

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UNEXPLAINED VEHICLE ACCELERATION WITH INABILITY TO STOP BEFORE HITTING VEHICLE IN FRONT OF ME. PULLED OFF OF ROAD BEHIND TRUCK TO PARK. LIFTED FOOT FROM GAS PEDAL TO PUT ON BRAKE SO AS TO PUT VEHICLE INTO PARK. THERE WAS THEN AN EXTREME VEHICLE ACCELERATION WHICH WAS UNCONTROLLABLE WITH BRAKE. SLAMMED INTO TRUCK. TOYOTA CORP CLAIMS NO ERRORS LOGGED IN COMPUTER SYSTEM, AND THAT IF FOOT WOULD HAVE BEEN ON BRAKE PEDAL, THE FILAMENT WOULD HAVE BROKEN. I CAN'T BE CERTAIN THE BRAKING HAPPENED BEFORE THE ACCIDENT-IT WAS VERY FAST. I AM CERTAIN FOOT WAS ON BRAKE AND NOT ON GAS!! THERE HAS BEEN A PREVIOUS DENIAL OF A PETITION TO INVESTIGATE NUMEROUS INSTANCES OF THIS IDENTICAL SITUATION WITH OTHER TOYOTA'S-(NHTSA ACTION # DP05002). NHTSA PLEASE INVESTIGATE THIS!! THERE ARE TOO MANY COMPLAINTS OF THIS HAPPENING-DO SOMETHING BEFORE THERE ARE DEATHS! IS TOYOTA IMMUNE FROM SAFETY RECALLS? I'M SORRY YOU COULDN'T FIND EVIDENCE OF A DEFECT, BUT THERE IS SOMETHING SERIOUSLY WRONG. SEVERE HESITATION, SUDDEN ACCELERATION=POSSIBLE DEATHS. I'VE RECEIVED MY REPAIRED VEHICLE, AND WHEN I WENT TO TRADE IT IN, I WAS OFFERED THOUSANDS LESS THAN TRADE IN IS SUPPOSED TO BE! IF TOYOTA REALLY BELIEVES THERE'S NOTHING WRONG WITH THEIR CAR, WHAT'S THE PROBLEM? AGAIN THEY'RE NOT BEING HELD ACCOUNTABLE! *NM

NHTSA ODI #10161408

13,500 miles · Jun 14, 2006

Vehicle Speed ControlCrash

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I DROVE UP HILL, SLOWED, TURNED, AND PULLED BEHIND TRUCK TO PARK OFF THE SIDE OF THE ROAD. THIS WAS ALSO UPHILL. THE CAR WAS STOPPED, I WENT TO PUT MY FOOT ON THE BRAKE TO SHIFT INTO PARK, AND THE CAR FOR SOME REASON ACCELERATED WILDLY (LOUD ROARING OF ENGINE). IT THEN LURCHED FORWARD VERY FAST AND SLAMMED INTO THE TRUCK THAT WAS IN FRONT OF ME. I HAD NO POWER TO STOP IT. THIS INCIDENT WAS COMPLETELY OUT OF MY CONTROL. I HAVE HAD PROBLEMS IN THE PAST WITH THIS VEHICLE WITH SEVERE HESITATION. I HAVE ALSO HAD A HESITATION, FOLLOWED BY EXTREME ACCELERATION. I DID FILE A COMPLAINT PREVIOUSLY. THIS IS A VERY DANGEROUS CONDITION. IT COULD HAVE BEEN A CHILD I HIT INSTEAD OF A TRUCK!. THE DEALER SAYS THEY CAN'T FIND A PROBLEM WITH MY CAR. THIS IS A SPORADIC OCCURRENCE, BUT IT SHOULDN'T HAPPEN AT ALL. *NM

NHTSA ODI #10159869

Mileage unknown · May 4, 2006

Power Train

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I HAVE MADE NUMEROUS COMPLAINTS ABOUT THE FUNCTIONING OF THE TRANSMISSION IN MY 2005 TOYOTA HIGHLANDER. IT BEGAN ONE MONTH AFTER I PURCHASED THE NEW CAR. THE PROBLEMS HAVE PROGRESSIVELY GROWN WORSE AND ARE MORE FREQUENT. THE DEALERSHIP INDICATES THAT THE HESITATION AND JERKING OF THE TRANSMISSION IS NORMAL AND A RESULT OF THE ELECTRONIC CONTROLLING OF THE TRANSMISSION. EVEN AFTER THE DEALERSHIP UPDATED THE SOFTWARE, THE TRANSMISSION CONTINUES TO HAVE PROBLEMS. THE DEALERSHIP NOR TOYOTA HAVE NOT OFFERED ANY SOLUTIONS. *JB

NHTSA ODI #10156791

7,000 miles · Mar 31, 2006

Structure

DT*: THE CONTACT STATED WHILE THE REAR WINDOWS WERE DOWN AND THE VEHICLE WAS DRIVEN AT SPEEDS ABOVE 60 MPH, THE VEHICLE SHUTTERED. THE MANUFACTURER DETERMINED THIS WAS A NORMAL CONDITION FOR THE VEHICLE. *AK UPDATED 4/19/2006 - *NM

NHTSA ODI #10154297

22,900 miles · Mar 28, 2006

Seat BeltsCrashInjury

I WAS REAR ENDED BY A TRUCK WHILE STOPPED COMPLETELY ON THE HARDY TOLL ROAD IN HOUSTON. THE TRUCK WAS GOING APPROX 30 MPH. MY SEAT BELT DID NOT WORK AND MY HEAD HIT THE STEERING WHEEL RESULTING IN A CONCUSSION. TOYOTA TOLD ME THAT SEAT BELTS PROVIDE NO PROTECTION DURING A REAR END COLLISION. I THINK THEY ARE WRONG. *JB

NHTSA ODI #10153955

Mileage unknown · Mar 21, 2006

Unknown Or Other

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PRODUCT BRAND/MODEL: GARMIN / STREET PILOT I5 (NAVIGATION/GPS): THERE IS A SINGLE BUT SERIOUS SAFETY ISSUE. MY I5 LOSES SUCTION FROM THE WINDSHIELD DAILY WITHOUT WARNING AND/OR CONSISTENT CONDITIONS (I.E. HOT/COLD/WET/DRY/MOVING/STILL). THERE IS NO DAMAGE TO THE RUBBER SUCTION CUP AND MY CAR IS NEW (2005 HIGHLANDER) AND CLEAN. I TOLD A NEIGHBOR ABOUT IT (HE IS AN ENGINEER) HE SAID THE DEVISES SUCTION CUP IS TOO SMALL RELATIVE TO IT'S WEIGHT AND THUS GRAVITY AND LEVERAGE OVER POWER THE VACUUM OF THE SUCTION OVER TIME (I.E. THE SUCTION CUP IS TO SMALL RELATIVE TO THE WEIGHT IT MUST HOLD UP). THIS CREATES A VERY DANGEROUS TRAFFIC SAFETY ISSUE AS THE UNIT HAS FALLEN ONTO MY LAP SEVERAL TIMES IN THE MIDST OF DRIVING MY CAR AND CAN BE A POTENTIALLY DANGEROUS DISTRACTION (IT COULD JUST AS EASILY FALLEN ON THE FLOOR UNDER MY BREAKS AS WELL). I HAVE CONTACTED THE COMPANY THROUGH OUT THEIR WEB SITE BUT HAVE NOT RECEIVED A RESPONSE TO DATE. THE BIGGER ISSUE IS THAT I AM SURE THOUSANDS OF PEOPLE HAVE THIS AND PRIOR MODELS (I1 TO I4) WHICH WILL ALL HAVE THE SAME SAFETY ISSUE (WHY WAIT FOR A SERIES OF ACCIDENTS TO TAKE ACTION) HELP!*JB

NHTSA ODI #10153379

13,811 miles · Mar 14, 2006

Steering

2005 HIGHLANDER STEERING COLUMN SHAFT WAS BENT, THIS CAUSED VEHICLE TO MAKE A RATTLING NOISE. *TS THE RATTLING OCCURRED WHEN GOING OVER ROAD EXPANSION GAPS AND MINOR BUMPS. ***NAR***

NHTSA ODI #10154060

Mileage unknown · Feb 21, 2006

Power Train

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MULTIPLE TIMES, I HAVE TRIED TO ACCELERATE THE VEHICLE AND THERE HAS BEEN "HESITATION" WHEN I DEPRESSED THE GAS PEDAL--THE CAR SEEMED TO BE IN NEUTRAL, THERE WAS NO RESPONSE. THIS HAS HAPPENED MANY TIMES AT DIFFERENT SPEEDS/GEARS--IT IS NOT PREDICTABLE. I HAVE ALMOST BEEN REAR ENDED ONCE; IN THAT INSTANCE THE CAR ACTUALLY "BUCKED" AND STOPPED. I HAD TO TURN OFF THE ENGINE, RESTART, AND DRIVE A SHORT DISTANCE TO A SAFE PLACE TO STOP. AT OTHER TIMES, I HAVE BEEN ON A RELATIVELY EMPTY STREET AND IT HAS NOT BEEN AS MUCH OF A PROBLEM SINCE NO ONE WAS BEHIND ME. HOWEVER, THIS IS AN ACCIDENT WAITING TO HAPPEN AS I HAVE A LONG COMMUTE TO WORK (AND BOUGHT THIS CAR BECAUSE OF WHAT I THOUGHT WAS ITS SAFETY AND RELIABILITY). ON MY FIRST VISIT TO THE DEALER, TOYOTA MADE A FIX ACCORDING TO A TECHNICAL BULLETIN. ON THE SECOND VISIT, THEY DID NOTHING BECAUSE THEY COULD NOT REPLICATE THE PROBLEM--EVEN THOUGH THEY WERE TOLD THAT THE PROBLEM HAPPENS INTERMITTENTLY. ON THIS SECOND VISIT, THEY MERELY TEST DROVE THE VEHICLE AND WE WERE TOLD WE COULD RENT A LOANER VEHICLE FROM THEM AT THEIR COST BECAUSE THERE WAS NO PROBLEM WITH THE VEHICLE. *JB

NHTSA ODI #10150714

Official recalls

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.

11V539000 · Engine And Engine Cooling

Nov 9, 2011

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2004 AVALON VEHICLES; 2004 AND 2005 CAMRY, CAMRY SOLARA, HIGHLANDER, AND SIENNA VEHICLES, 2006 HIGHLANDER HYBRID; 2004 AND 2005 LEXUS ES330 AND RX330; AND 2006 LEXUS RX400H VEHICLES MANUFACTURED FROM JUNE 1, 2004 THROUGH MARCH 31, 2005, EQUIPPED WITH THE 1MZ-FE OR 3MZ-FE ENGINE. THE AMOUNT OF ADHESIVE AGENT APPLIED BETWEEN THE OUTER RING AND THE TORSIONAL RUBBER DAMPER (INNER RING) IN THE CRANKSHAFT PULLEY MAY BE INADEQUATE. IF THE ADHESIVE IS INSUFFICIENT, THERE IS A POSSIBILITY THAT THE OUTER RING MAY BECOME MISALIGNED AND IT MAY NOT PROPERLY ROTATE WITH THE INNER RING, CAUSING NOISE AND/OR ILLUMINATION OF THE BATTERY DISCHARGE INDICATOR LIGHT.

Consequence & remedy

Consequence: IN SOME CASES, THE BELT FOR THE POWER STEERING PUMP MAY BECOME DETACHED FROM THE PULLEY WHICH COULD RESULT IN A LOSS OF POWER STEERING AND A SUDDEN INCREASE IN STEERING EFFORT, INCREASING THE RISK OF A CRASH.

Remedy: TOYOTA WILL NOTIFY OWNERS, AND DEALERS WILL CHECK THE CRANKSHAFT PULLEY TO IDENTIFY WHETHER IT WAS PRODUCED BY THE U.S. SUPPLIER. IF SO, THE DEALER WILL REPLACE THE PULLEY WITH A NEW ONE AT NO CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING EARLY JANUARY 2012. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

11V112000 · Vehicle Speed Control:accelerator Pedal

Feb 24, 2011

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2004-2006 HIGHLANDER, HIGHLANDER HYBRID, AND MODEL YEAR 2004-2007 LEXUS RX330, RX350, AND RX400H VEHICLES. IF THE FORWARD RETENTION CLIP USED TO SECURE THE FLOOR CARPET COVER, WHICH IS LOCATED IN FRONT OF THE CENTER CONSOLE, IS NOT INSTALLED PROPERLY THE COVER MAY LEAN TOWARD THE ACCELERATOR PEDAL AND INTERFERE WITH THE ACCELERATOR PEDAL ARM.

Consequence & remedy

Consequence: IF THIS OCCURS, THE ACCELERATOR PEDAL MAY TEMPORARILY BECOME STUCK IN A PARTIALLY DEPRESSED POSITION RATHER THAN RETURN TO THE IDLE POSITION. A STUCK ACCELERATOR PEDAL MAY RESULT IN UNINTENDED AND SUSTAINED VEHICLE SPEEDS AND MAKE IT DIFFICULT TO STOP, INCREASING THE RISK OF A VEHICLE CRASH.

Remedy: DEALERS WILL REPLACE THE FLOOR CARPET COVER WITH A NEWLY DESIGNED ONE FREE OR CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN DURING MARCH 2011. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

10V499000 · Service Brakes, Hydraulic:foundation Components:master Cylinder

Oct 21, 2010

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2005-2006 AVALON, MODEL YEAR 2004-2006 HIGHLANDER, MODEL YEAR 2004-2006 LEXUS RX, AND MODEL YEAR 2006 LEXUS GS AND IS VEHICLES. BRAKE FLUID CONTAINING POLYMERS IS USED THAT ACTS AS LUBRICANTS FOR CERTAIN BRAKE SYSTEM COMPONENTS. IF REPLACEMENT BRAKE FLUID IS USED THAT DOES NOT CONTAIN SUCH POLYMERS, OR THAT CONTAINS ONLY SMALL AMOUNTS, A PART OF THE RUBBER SEAL LOCATED AT THE REAR OF THE BRAKE MASTER CYLINDER MAY BECOME DRY, AND THE SEAL MAY CURL DURING MOVEMENT OF THE PISTON. IF THIS OCCURS, A SMALL AMOUNT OF BRAKE FLUID COULD SLOWLY LEAK FROM THE SEAL INTO THE BRAKE BOOSTER.

Consequence & remedy

Consequence: A LEAK OF BRAKE FLUID COULD LEAD TO A CHANGE IN BRAKE PEDAL FEEL AND OVERTIME A DEGRADATION IN BRAKING PERFORMANCE INCREASING THE RISK OF A CRASH.

Remedy: DEALERS WILL REPLACE THE SEAL WITH A NEWLY DESIGNED ONE. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON NOVEMBER 15, 2010. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331 AND LEXUS AT 1-800-255-3987.

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.

06V253000 · Vehicle Speed Control:accelerator Pedal

Jul 13, 2006

ON CERTAIN SPORT UTILITY AND HYBRID VEHICLES, THE TWO RETAINING CLIPS FOR THE DRIVER'S SIDE FORWARD CENTER CONSOLE CAN BECOME LOOSE. IF BOTH CLIPS SEPARATE FROM THE FLOOR CARPET COVER, THE COVER MAY LEAN TOWARD THE ACCELERATOR PEDAL, CAUSING INTERFERENCE WITH THE ACCELERATOR PEDAL ROD.

Consequence & remedy

Consequence: THIS CONDITION MAY INTERFERE WITH THE ACCELERATOR PEDAL RETURNING TO THE IDLE POSITION INCREASING THE RISK OF A CRASH.

Remedy: DEALERS WILL REPLACE THE TWO FLOOR CARPET COVER RETAINING CLIPS FREE OF CHARGE. THE RECALL BEGAN ON JULY 24, 2006, AND SHOULD BE COMPLETED BY EARLY SEPTEMBER 2006. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331 OR LEXUS AT 1-800-255-3987.

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

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

Vehicle Speed Control:accelerator Pedal