Power Train. Review the 58 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Vehicle Speed Control. Review the 40 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Steering. Review the 35 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

32 crash reports3 fire reports16 injury reports

Engine And Engine Cooling complaints

20 reports

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Mileage unknown · Aug 18, 2010

Engine And Engine CoolingVisibility

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THE TEMPERATURE CONTROL ON MY 2004 TOYOTA HIGHLANDER KEEPS SWITCHING BY ITSELF FROM HOT TO COLD AND HOT AGAIN. I HAVE TO ACTUALLY TURN THE AC ON EVEN WHEN THE OUTSIDE AIR COMING IN IS MODERATE BECAUSE THE TEMPERATURE CONTROL WILL SWITCH BY ITSELF TO HOT AND I CAN'T SWITCH IT OFF. THIS OCCURS EVERY TIME I DRIVE AND MORE SO WHEN I GO OVER A BUMP OR MAKE A TURN. I TURN THE VENT ON FOR OUTSIDE AIR, BUT THE TEMPERATURE CONTROL GETS LOCKED ON TO HOT AND I CAN'T TURN IT OFF. I HAVE CALLED THE DEALER AND THEY HAVE SAID THAT IT WOULD COST AROUND $1000.00 TO FIX IT. THEY WANT TO REPLACE THE WHOLE CONTROL UNIT. I HAVE READ VARIOUS FORUMS OF NUMEROUS OWNERS HAVING THIS SAME ISSUE. IT SEEMS TO BE A PROBLEM WITH TOYOTA NOT LEAVING ENOUGH SLACK IN A RIBBON CABLE WITH 3 CONNECTIONS THAT CONNECT FROM THE CIRCUIT BOARD TO THE CONTROL KNOB. THE WIRES BREAK OFF FROM THE SOLDERING ON THE KNOB. THIS SOUNDS LIKE A KNOWN DEFECT TO ME THAT TOYOTA IS AWARE OF, BUT CHOOSES TO IGNORE. APPARENTLY A CHEAPER FIX IS TO RE-SOLDER THE CABLE, BUT THEY REFUSED TO DO THAT. I THINK THEY SHOULD BE FIXING THIS FOR FREE. THIS IS JUST ANOTHER EXAMPLE OF TOYOTA IGNORING KNOWN ISSUES WITH THEIR VEHICLES. *TR

NHTSA ODI #10350400

115,000 miles · Dec 6, 2009

Engine And Engine Cooling

COOLANT LOSS DUE TO STRIPPED HEAD BOLTS IN THE ENGINE BLOCK. ENGINE OVER HEATED. *TR

NHTSA ODI #10294646

40,000 miles · Jun 8, 2008

Engine And Engine Cooling

I HAVE HAD TO HAVE MY EMISSION SYSTEM/CATALYTIC CONVERTER REPLACED TWICE NOW. THE FIRST TIME WAS IN 2004, WITHIN THE FIRST 6 MONTHS OF OWNING THE VEHICLE AND THE MOST RECENT TIME WAS MAY 2008. *TR EACH TIME THE SYMPTOM WAS A SULFUR SMELL THAT I UNDERSTAND FROM THE DEALER HAPPENS TO SOME 2004 TOYOTA HIGHLANDERS.

NHTSA ODI #10230280

Mileage unknown · Jul 13, 2006

Engine And Engine Cooling

WHILE RESEARCHING ANOTHER MATTER CONCERNING MY 2004 TOYOTA HIGHLANDER ON YOUR SITE, I READ COMPLAINT #10161055 CONCERNING A HESITATION PROBLEM THE OWNER WAS HAVING AND WANTED TO SAY THAT I HAVE EXPERIENCED THE SAME PROBLEM. IT IS NOT CONSTANT, HOWEVER IT DOES HAPPEN FREQUENTLY. *JB

NHTSA ODI #10162279

20,182 miles · May 8, 2006

Engine And Engine Cooling

THERE IS A SULFUR SMELL WHEN I STOP OR BACK UP ON HILLS. THE DEALER SAID THAT THEY WOULD REPLACE THE CATALYTIC CONVERTER (PARTS ARE ON ORDER) AND THAT THIS WAS A DEFECT IN SOME VEHICLES. IF AN OWNER MENTIONS THE SMELL, THEY DO THE REPAIR UNDER WARRANTY. SHOULDN'T OWNERS BE MADE AWARE OF THE PROBLEM? *NM

NHTSA ODI #10157016

37,000 miles · Nov 14, 2005

Engine And Engine CoolingVehicle Speed ControlCrash

DT: THE CONTACT STATED WHILE PULLING INTO A PARKING SLOT HEARD A GRINDING NOISE FOLLOWED BY THE VEHICLE LURCHING INTO ANOTHER PARKED VEHICLE. HE TOOK THE VEHICLE TO THE DEALER. THE DEALER COULD NOT DUPLICATE THE SUDDEN ACCELERATION. THE DEALER REPLACED THE MASS AIR FLOW SENSOR, OXYGEN SENSOR, AND REPROGRAMMED THE ECU. THE DE…

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NHTSA ODI #10142635

3,000 miles · Oct 15, 2005

Engine And Engine Cooling

MY 2004 TOYOTA HIGHLANDER HESITATES FOR A COUPLE OF SECONDS WHEN I ACCELERATE FROM ABOUT 40 TO 50 MPH SUCH AS GETTING ONTO A FREEWAY. I HAVE NEVER EXPERIENCED THIS IN ANY OTHER VEHICLE. I FIND THIS HESITATION TO BE VERY DISCONCERTING AND MAKES ME WORRY ABOUT MERGING INTO TRAFFIC. *JB

NHTSA ODI #10139796

Mileage unknown · Jul 13, 2005

Engine And Engine CoolingTires

INDICATOR LIGHTS ON DASH SAY CONTACT YOUR DEALER. ONE IS THE TIRE PRESSURE AND THE OTHER IS THE ENGINE. HAVE CARRIED TO DEALER 3 TIMES AND STILL OCCURS. THEY ARE SUPPOSED TO PICKUP TOMORROW AND CORRECT TIRE PRESSURE LIGHT. ONLY LISTED LAST DATE

NHTSA ODI #10128624

Mileage unknown · May 9, 2005

Engine And Engine Cooling

EXCESSIVE SULFUR DIOXIDE IN 2004 V6 TOYOTA HIGHLANDER, THERE IS ALREADY A TSB ON THE V4, BUT I OWN A V6 AND HAVE HAD THIS PROBLEM FOR ALMOST A YEAR NOW (STOP AND GO AND ACCELERATION, THERE IS A ROTTEN-EGG SMELL). I'VE BEEN TOLD BY 2 TOYOTA SERVICE STATIONS THAT IT IS THE GAS. THIS IS DEFINITELY NOT THE CASE. I'VE TRIED EVERY T…

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NHTSA ODI #10120348

15,200 miles · Jan 24, 2005

Engine And Engine Cooling

ENGINE HESITATION AND DELAYED ACCELERATION. *NM

NHTSA ODI #10107842

Official recalls

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.

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.

04V181000 · Latches/locks/linkages:doors:latch

Apr 15, 2004

CERTAIN SPORT UTILITY VEHICLES HAVE A CHILD PROTECTION LOCK (CPL) SYSTEM ON BOTH OF THE REAR SIDE DOORS. WHEN AN OPERATOR OF THE VEHICLE CLOSES THE DOOR VERY HARD WITH THE CPL LEVER SET TO THE LOCK POSITION, THERE IS A POSSIBILITY THAT THE LEVER MAY CONTACT THE BODY PANEL, CAUSING THE CPL LEVER TO MOVE INTO THE UNLOCK POSITION.

Consequence & remedy

Consequence: THIS CONDITION COULD ALLOW THE DOOR TO BE OPENED WITH THE INSIDE WHILE THE OPERATOR BELIEVES THAT THE CPL WAS ACTIVATED. IF THE DOOR WERE OPENED FROM THE INSIDE WHILE THE VEHICLE WAS IN MOTION, AN OCCUPANT COULD FALL OUT AND BE INJURED.

Remedy: DEALERS WILL SHORTEN THE CPL LEVER. OWNER NOTIFICATION BEGAN MAY 7, 2004. OWNERS SHOULD CONTACT TOYOTA AT 1-800-331-4331.

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