Electrical System. Review the 29 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
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Service Brakes, Hydraulic. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

15 crash reports0 fire reports5 injury reports

Power Train complaints

16 reports

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125,000 miles · Mar 6, 2023

Power Train

The contact owns a 2006 Lexus RX400H. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. Additionally, the vehicle failed to shift into park(P). The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failu…

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NHTSA ODI #11510313

133,000 miles · Jun 21, 2018

Electronic Stability Control (esc)Power TrainUnknown Or Other

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2006 LEXUS RX400H TOTALLY SHUTTING DOWN WHILE I WAS DRIVING ON I4 TODAY. NO POWER STEERING, NO POWER BRAKES, ENGINE DIED AND LUCKILY I WAS ABLE TO COAST TO A SAFE PLACE FROM 70MPH! RIGHT BEFORE IT HAPPENED, THE CHECK ENGINE LIGHT CAME ON, THE ENGINE MISFIRED, THEN ALL OF THE LIGHTS ON THE DASHBOARD CAME ON INCLUDING THE CHECK VCS, CHECK HYBRID AND CHECK ANTI-LOCK. HAD TO HAVE IT TOWED TO OUR MECHANIC BECAUSE IT WOULDN'T START AND COULD NOT BE DRIVEN ONTO THE TOW TRUCK. CODES THAT IT THREW SAID IT WAS A HIGH VOLTAGE SYSTEM REGENERATIVE MALFUNCTION AND A BAD ENGINE COIL. IT WAS A VERY DANGEROUS SITUATION WITH IT SHUTTING DOWN ON THE INTERSTATE AND I HAD NO CONTROL WHAT SO EVER! THIS WAS THE SECOND TIME THIS HAPPENED TO ME IN THIS CAR AND THE COMPUTER WAS REPLACED THE WEEK AFTER I PURCHASED THIS CAR USED IN OCTOBER 2017.

NHTSA ODI #11103046

109,000 miles · May 26, 2018

EnginePower TrainService Brakes

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WHILE DRIVING 50 MPH ON A BUSY ROAD IN MA THE CAR ABRUPTLY STALLED AND LOST POWER AND ABILITY TO CONTROL IT OTHER THAN WITH A GLIDE AND MANUAL STEERING TO PULL OFF THE ROADWAY AND OUT OF BUSY TRAFFIC, WHICH COULD HAVE BEEN DEADLY FOR BOTH OUR SON AND THE PEOPLE DRIVING AROUND HIM. UPON HAVING IT TOWED TO THE LEXUS DEALERSHIP, THEY INFORMED US THAT THE DASHBOARD SENSORS WERE INDICATING A FAULTY OIL PUMP AND POSSIBLY A FAILED INVERTER. "THEY HAD NO WAY OF DETERMINING IF THE INVERTER WAS FAULTY WITHOUT FIRST REPAIRING THE OIL PUMP FOR $1200." UPON REPAIRING THE OIL PUMP, WE LEARNED THE INVERTER ($8000 REPAIR) WAS DAMAGED AND NEEDED REPAIR. THE DEALER COULD NOT EXPLAIN THIS AND HAD "NEVER SEEN OR HEARD OF SUCH A THING." FURTHER INVESTIGATION ON OUR PART, SHOWED THAT OVER 235,000 2006 AND BEYOND TOYOTA HYBRID VEHICLES HAD BEEN RECALLED FOR A FAULTY INVERTER IN 2013. WHILE OUR VEHICLE VIN DOES NOT SHOW UP ON THE RECALL LIST, WE BELIEVE WE ARE EXPERIENCING THE EXACT SAME PROBLEM. LEXUS CORPORATE IS DENYING ANY PART IN THIS AND REFUSED TO STAND BEHIND THE VEHICLE WITH ONLY 109,000 MILES AND QUICKLY CLOSED THE CASE. OUR CONCERN IS THERE ARE MORE VEHICLES OUT THERE WITH THIS ISSUE, AND THAT IT COULD BE DEADLY FOR OPERATORS AND DRIVERS. IF THE INVERTER WAS IDENTIFIED AS FAULTY ALREADY ON OVER 235,000 VEHICLES, AN EXPANDED SEARCH ON ADDITIONAL VINS NEEDS TO TAKE PLACE. LEXUS WAS VERY COMFORTABLE IN CONFIRMING THAT THEY DID NOT AND WOULD NOT STAND BEHIND THEIR VEHICLES BEYOND 100,000 MILES, AND ESSENTIALLY, IT WAS GOOD THAT OUR SON DID NOT GET INJURED, AND SORRY OUR CAR WAS ESSENTIALLY TOTALLED (VALUE OF VEHICLE IS APPROX $9000 BASED ON KELLY BLUE BOOK) FOR THE FAULTY INVERTER WHICH WAS NOT IDENTIFIED ON THE RECALL.

NHTSA ODI #11098091

130,000 miles · Jul 5, 2016

Electrical SystemFuel/propulsion SystemPower Train

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I WAS TRAVELING 60 MPH ON THE HIGHWAY AND MY DISPLAY STARTED READING "CHECK HYBRID SYSTEM" AND "CHECK VSC SYSTEM" SIMULTANEOUSLY. I SEARCHED AND SAW THERE WAS A RECALL FOR THIS EXACT ISSUE (INTELLIGENT POWER MODULE INSIDE THE INVERTER MODULE) FOR CERTAIN VEHICLES OF MY EXACT MAKE/MODEL/YEAR BUT FOR SOME REASON MY VEHICLE IS NOT ON THE RECALL LIST. I TOOK IT TO THE DEALERSHIP AND THEY SAID THE REGULAR 12 VOLT CAR BATTERY WAS THE ISSUE SO THEY REPLACED IT AND THE LIGHT WENT OFF AND THE CAR TESTED NORMAL FOR SEVERAL DAYS HOWEVER WHEN TRAVELING ON THE HIGHWAY ABOUT A WEEK LATER THE SAME LIGHTS CAME ON AGAIN.

NHTSA ODI #10882529

114,275 miles · Mar 6, 2015

Power Train

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WHILE DRIVING ON I-70, ELEVATED SECTION DOWN TOWN DENVER, VEHICLE LOST POWER, WARNING LIGHTS CAME ON INCLUDING HYBRID SYSTEM, CHECK ENGINE, ANTISKID, AND SEVERAL OTHERS. VEHICLE COASTED TO A STOP AFTER DIFFICULTY GETTING TO THE SAFETY LANE NEARLY CAUSING AND ACCIDENT. THIS INCIDENT HAPPENED AFTER THE RECALL WHERE THE IPM MODULE WAS REPLACED. TOWED TO DEALER BUT AFTER 3 DAYS OF TESTS DEALER REPORTED THAT THEY COULD NOT REPLICATE THE MALFUNCTION. SIMILAR INCIDENT REPORTED ON SAME CAR 6 MONTHS EARLIER JUST AFTER RECALL. OWNER TRADED CAR BACK TO DEALER AND VEHICLE WAS TOWED TO THE AUCTION 3 DAYS LATER. *TR

NHTSA ODI #10692513

65,000 miles · Jul 25, 2014

EnginePower Train

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DEAR SIRS! THE CAR WAS BOUGHT FEB 2009 FROM IRA LEXUS IN DENVER MA WITH 17K MILES ON IT. NOW THE CAR HAS 65K MI. IT DID DIE ON THE STREET ABOUT TWO WEEKS AGO MECHANICS DID CHECK THE CAR AND DID WRITE A REPORT, THAT THE PROBLEM IS DUE TO THE MANUFACTURING ISSUE WHICH WAS A REASON FOR THE RECALL. I HAVE RECALL INFO AND REPORT, CAN EMAIL. I DID NOT RECEIVE THE RECALL NOTICE. THE LEXUS DEALER SAYS THAT THE CAR SHOULD BE FIXED BY THEM, BUT NEED A LEXUS APPROVAL. THE COST IS ABOUT $10K I DID CONTACT LEXUS AND RECEIVED A CALL THAT THEY WON'T PAY FOR THE REPAIRS. THE PROBLEM IN THE CAR ' INVERTER WENT BAD AND THE REASON FOR THAT ' A SMALL PART INSIDE, WHICH WAS ON THE RECALL. LEXUS SAY THAT THE RECALL WAS FOR A SMALL PART AND THEY DO NOT WANT TO PAY FOR THE WHOLE THING. AND I BELIEVE THAT SINCE I DID NOT RECEIVE THE RECALL LETTERS - THEY SHOULD FIX THE CAR. *TR

NHTSA ODI #10616220

90,000 miles · May 4, 2014

Fuel/propulsion SystemPower TrainStructure

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HAVING ENJOYED OWNING A LEXUS RX300, I MADE A HUGE "INVESTMENT" AND PURCHASED THE 2006 RX400H. IN APRIL OF 2014, THE VEHICLE WOULD NOT START DUE TO A FAILURE OF THE HYBRID SYSTEM. I ATTEMPTED TO JUMP START THE VEHICLE AS SUGGESTED BY THE LEXUS DEALER. UPON FURTHER INVESTIGATION I DISCOVERED THE CARPET INSIDE THE CABIN AREA WAS SOAKING WET! THE CAR HAD BEEN OUTSIDE IN THE RAIN WITH THE WINDOWS, SUNROOF AND DOORS CLOSED. ALSO, I TAKE THE CAR TO AN AUTOMATIC CAR WASH ON A REGULAR BASIS. WHILE LOADING THE CAR ON TO THE JERR-DAN TOW TRUCK, A LARGE AMOUNT OF WATER POURED OUT OF THE REAR TRUNK AREA. THE TOW TRUCK OPERATOR WAS AMAZED AT THE AMOUNT OF WATER THAT WAS POURING ONTO THE DRIVEWAY. THE VEHICLE WAS TAKEN TO THE LEXUS DEALER. AFTER SEVERAL DAYS, A LEAK IN THE REAR HATCH AREA WAS FOUND TO BE THE SOURCE OF THE WATER. THERE APPARENTLY IS A METAL SEAM WHERE THE WELDS DO NOT HOLD UP OR WERE NOT WELDED PROPERLY. WATER COLLECTED IN THE HYBRID BATTERY AREA CAUSING OVER $7000 DAMAGE. OF COURSE, LUCKILY FOR LEXUS, THE VEHICLE WARRANTY HAD EXPIRED. THE ONLY RECOURSE I HAD WAS TO MAKE A CLAIM TO MY INSURANCE, WHICH ONLY COVERED THE DAMAGES BUT NOT THE CAUSE. MY OUT OF POCKET EXPENSES ARE APPROXIMATELY $3000. WATER LEAKING FROM THE OUTSIDE INTO THE CABIN OF A VEHICLE, ESPECIALLY ONE OF THIS PRICE, IS UNACCEPTABLE. AND TO HAVE WATER COLLECT INTO THE "HEART" OF THE VEHICLE AND RENDER THE VEHICLE INOPERABLE IS FRIGHTENING. I COULD HAVE BEEN ON AN ISOLATED ROAD OR A BUSY HIGHWAY AND THE VEHICLE COULD HAVE SUDDENLY QUIT. LEXUS KNEW ABOUT THIS POTENTIAL PROBLEM BUT DID NOT ADVISE THEIR CUSTOMERS TO WATCH FOR ANY SIGNS OF MOISTURE. THE REPAIR TO THE POPPED SEAM COULD HAVE BEEN DONE BY ANY BODY SHOP OR, I'M TOLD, THE USE OF A GOOD QUALITY SILICONE. THERE IS A TECHNICAL SERVICE BULLETIN FROM 3/10/2009 THAT SPECIFICALLY ADDRESSES THIS PROBLEM: TSB-L-SB0019-09 REV 1. *TR

NHTSA ODI #10586442

104,000 miles · Apr 14, 2014

Power TrainStructure

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THE CAR IS A HYBRID. IT WOULD NOT START (THE READY LIGHT WOULD NOT COME ON), THEREFORE IT WAS INOPERABLE. FORTUNATELY, THE CAR WAS PARKED AND DID NOT DIE WHILE DRIVING. IF IT WOULD HAVE DIED WHILE DRIVING, MANY DANGEROUS POSSIBILITIES COULD HAVE INCURRED. AFTER HAVING IT TOWED TO A LEXUS DEALER IN COLUMBUS, THE SOURCE OF THE PROBLEM WAS DIAGNOSED AS WATER IN THE HYBRID BATTERY AREA. AFTER LENGTHY DISCUSSION WITH LEXUS SERVICE PERSONNEL, THEY CONCLUDED THAT "WELDS" NEAR THE HATCH HINGES HAD COME APART, WHICH ALLOWED WATER TO SEEP INTO THE INTERIOR OF THE CAR TO THE HYBRID ELECTRONIC CONTROLS. LEXUS SERVICE HAD EXPERIENCE THESE PROBLEMS BEFORE, AND HAD GUESSED AT A VARIETY OF REASONS (SUCH AS EXCESSIVE OPENING AND CLOSING OF THE HATCH, WIND CATCHING THE HATCH WHILE IT WAS OPEN, AND OTHER LAME REASONS). THERE IS NO TICKER ON THE HATCH TO COUNT HOW MANY TIMES IT WAS OPENED NOR WHAT THERE ANY GUST OF WIND THAT WOULD HAVE CAUSE THE WELDS, TWO WELDS, TO BREAK ALLOWING WATER TO SEEP INTO THE CAR. MY CONCLUSION IS THAT SINCE THE PROBLEM HAS OCCURRED BEFORE, THAT THERE IS EITHER A MANUFACTURING ISSUE, AN ENGINEERING ISSUE, OR BOTH. I AM NEITHER AN EXPERT IN THESE AREAS, BUT DO HAVE SOME COMMON SENSE. LEXUS CORPORATE OR THE DEALER WOULD NOT CONFESS TO THE WRONGDOING AND THEREFORE I HAD TO SHELL OUT OVER $1600 IN REPAIRS. THEY WANTED ANOTHER $1100 TO RE-WELD THE 3 INCH GAP ON BOTH SIDES WITH PAINTING INCLUDED. DUE TO THE EXPENSE, I HAD TO OPT FOR USING SILICONE TO SEAL THE GAPS AND AM FORCED TO DRIVE THE CAR IN DRY WEATHER. *JS

NHTSA ODI #10579631

53,602 miles · Jan 26, 2014

Electrical SystemEngine And Engine CoolingFuel/propulsion System

LEAKAGE OF COOLANT FROM THE RADIATOR DISCOVERED AND IN LESS THAN 50 MILES AN ENGINE WARNING LIGHT LIT, INDICATING FAILURE OF THE HYBRID SYNERGY DRIVE SYSTEM , NAMELY THE HYBRID INVERTER. VEHICLE WAS BROUGHT INTO A LEXUS DEALERSHIP AND THE RADIATOR AND INVERTER WERE REPLACED. *TR

NHTSA ODI #10561527

90,000 miles · Dec 21, 2010

Engine And Engine CoolingPower Train

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NO FAILURE, YET. BUT VEHICLE (LEXUS RX400H - 2006) IS A HYBRID. THERE IS A SEPARATE COOLING SYSTEM FOR THE HYBRID COMPONENTS (INVERTER, AND ELECTRIC MOTORS IN TRANSAXLE). COOLANT IS LEAKING FROM THE TRANSAXLE. IF ALL COOLANT LEAKS OUT, THE INVERTER WILL FAIL. WITHOUT THE INVERTER, THERE IS NO POWER - NO ELECTRIC STEERING, NO ELECTRIC BRAKES, AND NO MOTIVE POWER TO THE WHEELS. ADDITIONALLY, THE COOLANT MAY LEAK SOMEWHERE OR ONTO SOMETHING THAT MAY SHORT OUT OR CAUSE A FIRE. THIS IS NOT A LEAK FROM A WORN OUT COOLANT HOSE, BUT DIRECTLY FROM THE TRANSAXLE. BEING A HYBRID, THE AVAILABILITY OF ELECTRIC POWER IS ABSOLUTELY ESSENTIAL. THERE HAVE BEEN REPORTS OF INVERTERS FAILING (JUST CHECK THE LEXUS. TOYOTA AND OTHER HYBRID FORUMS) ON THE HIGHWAY AT SPEED, LEADING TO A COMPLETE LOSS OF POWER. TO THE BEST OF MY KNOWLEDGE, THERE HAVE BEEN NO INJURIES OR ACCIDENTS, BUT THE POTENTIAL IS FRIGHTENING. *TR

NHTSA ODI #10371976

Official recalls

13V396000 · Hybrid Propulsion System: Inverter

Sep 4, 2013

Toyota is recalling certain model year 2006-2010 Highlander hybrid vehicles manufactured February 16, 2005, through July 29, 2010; and model year 2006-2008 Lexus RX400h vehicles manufactured February 23, 2005, through December 2, 2008. The Intelligent Power Module (IPM) inside the inverter module may contain transistors that have higher operating temperatures than the solder can support and the transistors may be heat damaged by the solder. If this occurs, various warning lamps, including the malfunction indicator lamp, slip indicator light, brake system warning light, and master warning light, will be illuminated on the instrument panel.

Consequence & remedy

Consequence: The vehicle may enter a fail-safe/limp-home mode that limits the drivability of the vehicle. It is possible that the hybrid system will shut down while the vehicle is being driven, causing the vehicle to stall unexpectedly, increasing the risk of a crash.

Remedy: Toyota will notify owners, and dealers will replace the IPM free of charge. Owners may contact Toyota at 1-800-331-4331. Vehicles that had their IPM replaced under recall 11V-342 are not affected by this campaign.

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.

11V342000 · Electrical System

Jun 29, 2011

TOYOTA IS RECALLING CERTAIN MODEL YEAR 2006-2007 HIGHLANDER HYBRID AND LEXUS RX400H PASSENGER CARS MANUFACTURED FROM FEBRUARY 16, 2005, THROUGH AUGUST 30, 2006. A MODULE INSIDE THE INVERTER MODULE MAY CONTAIN INADEQUATELY SOLDERED TRANSISTORS THAT DURING HIGH-LOAD DRIVING, MAY BE DAMAGED BY HEAT CAUSED BY THE LARGE CURRENT. IF THIS OCCURS, VARIOUS WARNING LAMPS, INCLUDING THE MALFUNCTION INDICATOR LAMP, SLIP INDICATOR LIGHT, BRAKE SYSTEM WARNING LIGHT, AND MASTER WARNING LIGHT, WILL BE ILLUMINATED ON THE INSTRUMENT PANEL.

Consequence & remedy

Consequence: THE VEHICLE MAY ENTER A FAIL-SAFE/LIMP-HOME MODE THAT LIMITS THE DRIVABILITY OF THE VEHICLE. IT IS POSSIBLE THAT THE HYBRID SYSTEM WILL SHUT DOWN WHILE THE VEHICLE IS BEING DRIVEN, CAUSING THE VEHICLE TO STALL UNEXPECTEDLY, INCREASING THE RISK OF A CRASH.

Remedy: TOYOTA/LEXUS MAILED AN INTERIM OWNER NOTIFICATION ON JULY 19, 2011 TO ADVISE OWNERS OF THIS RECALL AND THE FACT THAT THEY WILL RECEIVE A FUTURE NOTICE WHEN PARTS BECOME AVAILABLE TO COMPLETE REPAIRS. TOYOTA DEALERS WILL INSPECT THE HYBRID INVERTER PRODUCTION NUMBER TO DETERMINE WHETHER THE INVERTER CONTAINS SUSPECT TRANSISTORS AND REPLACE THE MODULE FREE OF CHARGE. 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.

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

DP22005 · Pedestrian Alert Sounds

Opened Jan 27, 2023 · Closed Aug 7, 2023

Status: closed (inferred from source dates) · Electrical System:propulsion System

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

PE11005 · Hybrid Inverter Failure - Vehicle Stall

Opened Feb 15, 2011 · Closed Jul 20, 2011

Status: closed (inferred from source dates) · Hybrid Propulsion System: Inverter

In a June 29, 2011 letter to NHTSA, Toyota submitted a Defect Information Report regarding a safety recall of certain Toyota Highlander Hybrid and Lexus RX400h vehicles to address a defect condition with the hybrid inverter assembly (NHTSA Recall No. 11V-342).Toyota's letter identified a defect related to inadequately soldered transistors on the Intelligent Power Module (IPM) of some of the subject vehicles that could result in sudden loss of power while driving.Toyota's remedy procedure instructs dealers to inspect the hybrid inverter production number to determine if the inverter contains suspect transistors.If so, the dealer will replace the IPM.The recall covers approximately 45,528 model year (MY) 2006 and 2007 Toyota Highlander Hybrid vehicles manufactured from February 16, 2005 through August 29, 2006 and approximately 36,745 MY 2006 and 2007 Lexus RX400h vehicles manufactured from February 23, 2005 through August 30, 2006.This Preliminary Evaluation is closed.

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