NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
52 reportsClear category filter10,000 miles · Sep 27, 2004
EquipmentPower TrainVehicle Speed Control
2002 LEXUS ES300 WITH ABOUT 18,000 MILES HAS A PROBLEM WITH HESITATION WHEN ACCELERATING AFTER SLOWING DOWN, ESPECIALLY AFTER COMPLETING A TURN. IT IS LIKE THE TRANSMISSION DOESN'T ADJUST WITH THE PRESSING OF THE GAS PEDAL. ALMOST HAD AN ACCIDENT BECAUSE OF THE HESITATION. ALSO I HAVE HAD PROBLEMS WITH THE CAR DOWN SHIFTING…
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2002 LEXUS ES300 WITH ABOUT 18,000 MILES HAS A PROBLEM WITH HESITATION WHEN ACCELERATING AFTER SLOWING DOWN, ESPECIALLY AFTER COMPLETING A TURN. IT IS LIKE THE TRANSMISSION DOESN'T ADJUST WITH THE PRESSING OF THE GAS PEDAL. ALMOST HAD AN ACCIDENT BECAUSE OF THE HESITATION. ALSO I HAVE HAD PROBLEMS WITH THE CAR DOWN SHIFTING AS I COME DOWN A HILL. ALSO A PROBLEM WITH THE CAR TRYING TO DECIDE WHAT GEAR TO BE IN WHEN GOING AROUND 20 TO 25 MILES PER HOUR. YOU CAN FEEL THE CAR CHANGE GEAR. PASSENGERS EVEN HAVE ASKED WHAT WAS THAT? COMPLAINED TO DEALERSHIP, AND WAS TOLD IT WAS THE WAY I DRIVE. I HAD THE SB-TC004-03 PERFORMED AFTER RECEIVING THE LETTER FROM LEXUS, BUT IT DIDN'T HELP. MAY HAVE MADE IT WORSE. *AK
NHTSA ODI #10093211
Mileage unknown · Jul 29, 2004
Power Train
WHILE DRIVING AT ANY SPEED,TRANSMISSION SLIPPED WHILE SHIFTING FROM THIRD TO FOURTH GEAR. ALSO, THERE WA S HESITATION, AND THE RPMS WENT WAY UP. DEALERSHIP REPLACED A CHIP AND CALIBRATED THE TRANSMISSION, AND PROBLEM RECURRED. *AK
NHTSA ODI #10083721
Mileage unknown · Jun 23, 2004
Power Train
LACK OF RESPONSE BETWEEN THE TRANSMISSION AND THE ENGINE.*MR THE CONSUME EXPLAINED THAT THERE IS A LAG TIME BETWEEN STEPPING ON THE GAS AN THE TRANSMISSION RESPONDING. THIS HESITATION WAS MOST PRONOUNCED WHEN BRAKING AND THEN NEEDING TO RAPIDLY ACCELERATE, SUCH AS WHEN MERGING INTO TRAFFIC. THE CONSUMER FEELS THE VEHICLE INAB…
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LACK OF RESPONSE BETWEEN THE TRANSMISSION AND THE ENGINE.*MR THE CONSUME EXPLAINED THAT THERE IS A LAG TIME BETWEEN STEPPING ON THE GAS AN THE TRANSMISSION RESPONDING. THIS HESITATION WAS MOST PRONOUNCED WHEN BRAKING AND THEN NEEDING TO RAPIDLY ACCELERATE, SUCH AS WHEN MERGING INTO TRAFFIC. THE CONSUMER FEELS THE VEHICLE INABILITY TO RESPOND IN A TIMELY MANNER IS A HAZARD. THE CONSUMER CONTACTED THE MANUFACTURER WHO INDICATED THAT HE VEHICLE WAS PERFORMING WITH IN THEIR SPECIFICATIONS. THE PROBLEM IS SO BAD THAT THE CONSUMER INTENDS TO GET RID OF THE VEHICLE. *NM
NHTSA ODI #10079873
100 miles · Jun 13, 2004
Power Train
2003 LEXUS HESITATES ON ACCELERATION WHEN SLOWING ( E.G., MAKING A TURN) AND THEN PROCEEDING TO FULL SPEED. THE MANUFACTURER WAS AWARE OF THE PROBLEM IN PRESS REVIEWS ON RELEASE OF THE CAR, AND TOOK 2 YEARS TO PROVIDE A SOFTWARE PATCH THAT WAS ALLEGED TO HAVE CORRECTED THE PROBLEM. THE PATCH DOES NOT WORK, AND THE CONDITION IS A…
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2003 LEXUS HESITATES ON ACCELERATION WHEN SLOWING ( E.G., MAKING A TURN) AND THEN PROCEEDING TO FULL SPEED. THE MANUFACTURER WAS AWARE OF THE PROBLEM IN PRESS REVIEWS ON RELEASE OF THE CAR, AND TOOK 2 YEARS TO PROVIDE A SOFTWARE PATCH THAT WAS ALLEGED TO HAVE CORRECTED THE PROBLEM. THE PATCH DOES NOT WORK, AND THE CONDITION IS A SAFETY PROBLEM.*AK
NHTSA ODI #10075325
Mileage unknown · Jun 4, 2004
Power TrainVehicle Speed Control
POWER TRAIN: AUTOMATIC TRANSMISSION. VEHICLE SPEED CONTROL: ACCELERATOR PEDAL. AR HESITATES ON ACCELERATION, LUNGES AT TIMES, SEARCHES FOR PROPER GEAR AND SHIFTS HARD. THE HEISTATION CAN BE QUITE DRAMATIC; ENOUGH TO LOSE CONFIDENCE IN CRITICAL SITUATIONS. THE CAR HAS BEEN "RE-PROGRAMMED" BY LEXUS, BUT PROBLEMS CONTINUE. LE…
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POWER TRAIN: AUTOMATIC TRANSMISSION. VEHICLE SPEED CONTROL: ACCELERATOR PEDAL. AR HESITATES ON ACCELERATION, LUNGES AT TIMES, SEARCHES FOR PROPER GEAR AND SHIFTS HARD. THE HEISTATION CAN BE QUITE DRAMATIC; ENOUGH TO LOSE CONFIDENCE IN CRITICAL SITUATIONS. THE CAR HAS BEEN "RE-PROGRAMMED" BY LEXUS, BUT PROBLEMS CONTINUE. LEXUS DENIES THERE IS A PROBLEM AND SAYS THE CAR FUNCTIONS AS DESIGNED. PROBLEMS SURFACED SHORTLY AFTER PURCHASE AND CONTINUE.*AK
NHTSA ODI #10074804
1,900 miles · May 19, 2004
Power Train
DANGEROUS CONDITION EXISTS WITH 2002 LEXUS ES300, WHERE A SEVERE HESITATION EXISTS WHEN ACCELERATING AT SLOW ROLL (< 5MPH) AT INTERSECTION TURNS, EXITING DRIVEWAYS, AND GENERALLY ANYWHERE WHEN TRYING TO GET INTO FLOW OF TRAFFIC WHEN NEARLY STOPPED - ESPECIALLY WHEN A TURN IS INVOLVED ALONG WITH THE ACCELERATION. VERY DANGEROUS C…
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DANGEROUS CONDITION EXISTS WITH 2002 LEXUS ES300, WHERE A SEVERE HESITATION EXISTS WHEN ACCELERATING AT SLOW ROLL (< 5MPH) AT INTERSECTION TURNS, EXITING DRIVEWAYS, AND GENERALLY ANYWHERE WHEN TRYING TO GET INTO FLOW OF TRAFFIC WHEN NEARLY STOPPED - ESPECIALLY WHEN A TURN IS INVOLVED ALONG WITH THE ACCELERATION. VERY DANGEROUS CONDITION EXISTS WHEN TRYING TO ENTER LANE, OR MAKE A TURN, IN FRONT OF FAST-MOVING TRAFFIC. IT SEEMS THE CAR'S ELECTRONICS DOES NOT REGOGNIZE THE ACCELERATOR'S REQUEST FOR FUEL UNDER THOSE CONDITIONS. THIS IS EXACTLY WHAT COMPLAINT /CASE #100375515 LISTED AND I HAVE THE EXACT SAME PROBLEMS. I HAVE TAKEN IT BACK TO THE DEALER TWICE AND ANOTHER ONE SHEDULED FOR 5/21/2004. *AK
NHTSA ODI #10072876
Mileage unknown · May 7, 2004
Power Train
2002 LEXUS ES300 HAS A LAG IN TIME BETWEEN STEPPING ON THE GAS AND THE TRANSMISSION RESPONDING TO PUT THE CAR IN MOTION. *MR THE HESITATION IS MOST PRONOUNCED WHEN BRAKING AND THEN NEEDING TO RAPIDLY ACCELERATE. THE CONSUMER FEELS THE INABILITY OF THE VEHICLE TO RESPOND IN A TIMELY MANNER IS HAZARDOUS. THE MANUFACTURER WAS C…
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2002 LEXUS ES300 HAS A LAG IN TIME BETWEEN STEPPING ON THE GAS AND THE TRANSMISSION RESPONDING TO PUT THE CAR IN MOTION. *MR THE HESITATION IS MOST PRONOUNCED WHEN BRAKING AND THEN NEEDING TO RAPIDLY ACCELERATE. THE CONSUMER FEELS THE INABILITY OF THE VEHICLE TO RESPOND IN A TIMELY MANNER IS HAZARDOUS. THE MANUFACTURER WAS CONTACTED. *NM
NHTSA ODI #10073330
Mileage unknown · Apr 23, 2004
Power Train
I HAVE A 2002 LEXUS ES300. IF YOU STOMP ON THE GAS WHILE DRIVING IN ORDER TO MERGE OR PASS THE ENGIN REVES BUT THE CAR DOES NOT PICK UP SPEED I.E THERE IS A BIG DEAD SPOT. I TOOK IT TO THE DEALOR AND WAS TOLD THAT WAS HOW THE CARE WAS DESIGNED TO WORK. I FEEL THAT THE HESITATION IS A BIG SAFTY PROBLEM THAT COULD LEAD TO A AC…
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I HAVE A 2002 LEXUS ES300. IF YOU STOMP ON THE GAS WHILE DRIVING IN ORDER TO MERGE OR PASS THE ENGIN REVES BUT THE CAR DOES NOT PICK UP SPEED I.E THERE IS A BIG DEAD SPOT. I TOOK IT TO THE DEALOR AND WAS TOLD THAT WAS HOW THE CARE WAS DESIGNED TO WORK. I FEEL THAT THE HESITATION IS A BIG SAFTY PROBLEM THAT COULD LEAD TO A ACCIDENT. WHAT CAN BE DONE TO GET LEXUS TO FIX THIS PROBLEM?*AK
NHTSA ODI #10067710
Mileage unknown · Apr 14, 2004
Power Train
2002 LEXUS ES300 EXHIBITS MOST OF THE PECULARITIES MENTIONED IN PE 04021 AND DP 04003 IN ADDITION TO INCONSISTENT 1/2 AND 2/3 SHIFTS AND MAJOR LAG TIME IN DOWNSHIFTS AT SPEED. A MAJOR DEFECT THAT HAS CAUSED NUMEROUS NEAR MISSES.
NHTSA ODI #10066196
Mileage unknown · Mar 23, 2004
Power TrainService Brakes, HydraulicTires
BRAKE ROTORS WERE REPLACED, ENTIRE NEW BRAKE KIT INSTALLED AND ALL FOUR TIRE WERE REPLACED PRIOR TO REACHING 20K MILES. *PH THE CONSUMER HAS NOT BEEN PLEASED WITH THE SHIFTING PERFORMANCE OF THE VEHICLE. THE AUTOMATIC TRANSMISSION DEMONSTRATE ERRATIC, ROUGH AND INCONSISTENT SHIFTING. THE MANUFACTURER INSTALLED A SOFTWARE UPG…
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BRAKE ROTORS WERE REPLACED, ENTIRE NEW BRAKE KIT INSTALLED AND ALL FOUR TIRE WERE REPLACED PRIOR TO REACHING 20K MILES. *PH THE CONSUMER HAS NOT BEEN PLEASED WITH THE SHIFTING PERFORMANCE OF THE VEHICLE. THE AUTOMATIC TRANSMISSION DEMONSTRATE ERRATIC, ROUGH AND INCONSISTENT SHIFTING. THE MANUFACTURER INSTALLED A SOFTWARE UPGRADE BUT IT ONLY SLIGHTLY IMPROVED THE PERFORMANCE. THE CONSUMER ALSO HAD A 2000 LEXUS GS 300 WHICH HAD A MORE DRAMATIC TRANSMISSION PROBLEM. THE LOCAL DEALER INSISTED THAT NOTHING WAS WRONG WITH THE VEHICLE. *NM
NHTSA ODI #10064969
NHTSA investigations
4DP09001 · Unwanted And Unintended Acceleration
Opened Apr 8, 2009 · Closed Oct 29, 2009
Status: closed (inferred from source dates) · Vehicle Speed Control
THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED DP09-001 ON APRIL 8, 2009, TO EVALUATE A DEFECT PETITION REQUESTING ADDITIONAL INVESTIGATION OF POTENTIAL THROTTLE CONTROL SYSTEM DEFECTS UNRELATED TO FLOOR MAT INTERFERENCE WITH ACCELERATOR PEDALS IN MODEL YEAR (MY) 2007 LEXUS ES 350 VEHICLES.THE PETITIONER REFERENCED AN EARLIER ODI INVESTIGATION CONCERNING FLOOR MAT INTERFERENCE WITH ACCELERATOR PEDAL RETURN (PE07-016/EA07-010), WHICH HE STATED WAS TOO NARROW IN SCOPE AS IT DID NOT INCLUDE ALL INCIDENTS OF UNWANTED ACCELERATION AND CONSIDER ALL POTENTIAL CAUSES OF VEHICLE SPEED CONTROL CONCERNS.THE PETITION ALSO REQUESTED AN INVESTIGATION OF MY 2002-2003 LEXUS ES300 FOR THOSE 'LONGER DURATION INCIDENTS INVOLVING UNCONTROLLABLE ACCELERATION WHERE BRAKE PEDAL APPLICATION ALLEGEDLY HAD NO EFFECT' THAT WERE DETERMINED NOT TO BE WITHIN THE SCOPE OF INVESTIGATION PE04-021. AS BACKGROUND, THE PETITIONER OWNS A MY 2007 LEXUS ES350 THAT ALLEGEDLY EXPERIENCED AN UNWANTED AND UNCONTROLLED ACCELERATION EVENT (ODI COMPLAINT NUMBER 10261660).TOYOTA CONCLUDED THAT THE INCIDENT WAS CAUSED BY AN UNSECURED FLOOR MAT. TO ASSESS THE PETITIONER'S REQUEST, ODI INTERVIEWED THE PETITIONER, INSPECTED HIS VEHICLE, REVIEWED INFORMATION SUBMITTED BY TOYOTA, REVIEWED OWNER COMPLAINTS ALLEGING INCIDENTS OF UNWANTED ACCELERATION IN THE SUBJECT VEHICLES AND MATERIAL RELATED TO THE INVESTIGATIONS CITED BY THE PETITIONER.ODI IDENTIFIED 64 COMPLAINTS ALLEGING INCIDENTS OF UNWANTED ACCELERATION IN MY 2007 LEXUS VEHICLES, RESULTING IN 8 CRASHES AND 15 INJURIES.ODI'S ANALYSIS OF THESE COMPLAINTS DETERMINED THAT 50 (78%) INVOLVED INCIDENTS OF FLOOR MAT INTERFERENCE, INCLUDING 7 (88%) OF THE CRASHES AND ALL 15 INJURIES.THEREFORE, ODI'S ANALYSIS FOUND THAT THE ONLY DEFECT TREND RELATED TO VEHICLE SPEED CONTROL IN THE SUBJECT VEHICLES INVOLVED THE POTENTIAL FOR ACCELERATOR PEDALS TO BECOME TRAPPED NEAR THE FLOOR BY OUT-OF-POSITION OR INAPPROPRIATE FLOOR MAT INSTALLATIONS. ON OCTOBER 5, 2009, TOYOTA INITIATED A SAFETY RECALL (RECALL 09V-388) TO ADDRESS CONCERNS WITH POTENTIAL ACCELERATOR PEDAL ENTRAPMENT BY FLOOR MATS IN APPROXIMATELY 3.8 MILLION VEHICLES, INCLUDING THE SUBJECT VEHICLES.EXCEPT INSOFAR AS THE PETITIONER'S CONTENTIONS RELATE TO THAT RECALL, THE FACTUAL BASES OF THE PETITIONER'S CONTENTIONS THAT ANY FURTHER INVESTIGATION IS NECESSARY ARE UNSUPPORTED. IN OUR VIEW, ADDITIONAL INVESTIGATION IS UNLIKELY TO RESULT IN A FINDING THAT A DEFECT RELATED TO MOTOR VEHICLE SAFETY EXISTS OR A NHTSA ORDER FOR THE NOTIFICATION AND REMEDY OF A SAFETY-RELATED DEFECT, AS ALLEGED BY THE PETITIONER, AT THE CONCLUSION OF THE REQUESTED INVESTIGATION.THEREFORE, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA'S LIMITED RESOURCES TO BEST ACCOMPLISH THE AGENCY'S SAFETY MISSION, THE PETITION IS DENIED.THIS ACTION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY FUTURE CIRCUMSTANCES.PLEASE SEE THEFEDERAL REGISTER NOTICE FOR FURTHER DETAILS.
DP05002 · Vehicle Speed Control
Opened Aug 5, 2005 · Closed Jan 5, 2006
Status: closed (inferred from source dates) · Vehicle Speed Control
IN A LETTER DATED JULY 8, 2005, AND AFTER EXPERIENCING TWO INCIDENTS (AND ONE CRASH) WHERE HE ALLEGES HIS MODEL YEAR (MY) 2002 CAMRY ACCELERATED WITHOUT DRIVER INPUT, MR. JORDAN ZIPRIN PETITIONED THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION?S (NHTSA) OFFICE OF DEFECTS INVESTIGATION (ODI) TO COMMENCE A PROCEEDING TO DETERMINE THE EXISTENCE OF A DEFECT WITHIN THE ETC SYSTEM IN MY 2002 TO 2005 TOYOTA AND LEXUS VEHICLES, OR TO REOPEN A PRIOR INVESTIGATION PRELIMINARY EVALUATION (PE) 04-021.IN A LETTER DATED AUGUST 18, 2005, MR. ZIPRIN AMENDED HIS PETITION TO INCLUDE ALLEGATIONS OF INTERRELATED BRAKE AND ACCELERATION PROBLEMS THAT ALLEGEDLY RESULT IN INAPPROPRIATE AND UNCONTROLLABLE VEHICLE ACCELERATIONS.THE 1172 VEHICLE OWNER QUESTIONNAIRE REPORTS CITED BY THE PETITIONER INVOLVE 4 LEXUS AND 15 TOYOTA MODELS DEFINING A POPULATION OF 7 MILLION VEHICLES.THE REPORTS TYPICALLY ALLEGED A DEFECT IN THE BRAKE SYSTEM, THE THROTTLE CONTROL SYSTEM, OR A COMBINATION OF BOTH SYSTEMS.IN ITS REVIEW OF THE REPORTS, ODI A) FAILED TO FIND EVIDENCE TO SUPPORT THE EXISTENCE OF A BRAKE RELATED DEFECT IN THE CITED MODELS, AND B) DETERMINED THAT MANY CITED PRODUCTS WERE NOT EQUIPPED WITH ETC.ACCORDINGLY, ODI RESTRICTED ITS ANALYSIS TO THE 432 PETITIONER REPORTS INVOLVING MY 2002 TO 2005 CAMRY, SOLARA, AND ES MODELS (ALL EQUIPPED WITH ETC) THAT ALLEGED AN ABNORMAL THROTTLE CONTROL EVENT (SEE THE JANUARY 3, 2006 FEDERAL REGISTER NOTICE FOR FURTHER DETAILS).ABOUT 40% OF THE 432 REPORTS INVOLVE A DRIVEABILITY CONCERN WHERE THE OPERATOR INTENTIONALLY APPLIES THE THROTTLE PEDAL, IN EXPECTATION THAT THE VEHICLE WILL ACCELERATE, AND THEN EXPERIENCES A DELAY OR HESITATION IN VEHICLE RESPONSE.THESE REPORTS INVOLVE VEHICLE RESPONSE TO INTENTIONAL DRIVER COMMANDS WHICH ODI CONSIDERS UNRELATED TO THE ALLEGATIONS RAISED BY THE PETITIONER.THEREFORE, THE REPORTS DO NOT PROVIDE SUPPORT FOR THE INVESTIGATION REQUESTED.ABOUT 20% OF THE REPORTS INVOLVE INCIDENTS WHERE OPERATORS ALLEGE VEHICLE ACCELERATION WITHOUT DRIVER INPUT AND AN INABILITY OF THE BRAKE SYSTEM TO CONTROL THE VEHICLE WHEN APPLIED.NEITHER THE REPORTS, NOR THE INTERVIEWS CONDUCTED BY ODI, IDENTIFIED ANY VEHICLE-BASED CAUSE TO EXPLAIN THE INCIDENTS OR DISCLOSED EVIDENCE TO SUPPORT THAT A FAILURE OF THE BRAKE OR THROTTLE CONTROL SYSTEM HAD OCCURRED.BECAUSE THESE REPORTS DO NOT INDICATE A DISTINCT SAFETY DEFECT FOR INVESTIGATION, THE REPORTS DO NOT PROVIDE SUPPORT FOR THE INVESTIGATION REQUESTED BY THE PETITIONERTHE REMAINING REPORTS (~ 40%, SIMILAR TO THE PETITIONER?S AND THOSE OF PE04-021) TYPICALLY DESCRIBE INCIDENTS WHERE A VEHICLE IS BEING MANEUVERED AT SLOW SPEED IN A CLOSE QUARTER SITUATION AT WHICH POINT THE OPERATOR ALLEGES THAT THE VEHICLE ACCELERATES WITHOUT DRIVER INPUT AND CRASHES.IN THE AFTERMATH, OPERATORS ARE UNSURE OF WHETHER THE BRAKES WERE APPLIED OR NOT, SOMETIMES STATING THERE WAS INSUFFICIENT TIME TO USE THE BRAKE; A CRASH OCCURRED AND THE OPERATOR BELIEVES AN UNCOMMANDED ACCELERATION CAUSED IT.IN SPITE OF THE EFFORT EXPENDED DURING PE04-021 AND DURING THIS ANALYSIS, ODI HAS NOT IDENTIFIED ANY VEHICLE-BASED CAUSE TO EXPLAIN THE REPORTS, OR UNCOVERED ANY EVIDENCE TO INDICATE THAT A THROTTLE CONTROL SYSTEM FAILURE OCCURRED.THEREFORE, THE REPORTS HAVE AMBIGUOUS SIGNIFICANCE AND DO NOT CONSTITUTE A BASIS ON WHICH ANY FURTHER INVESTIGATIVE ACTION IS WARRANTED.BASED ON THE ANALYSIS CONDUCTED, IT IS UNLIKELY THAT THE NHTSA WOULD ISSUE AN ORDER FOR THE NOTIFICATION AND REMEDY OF A SAFETY RELATED DEFECT AT THE CONCLUSION OF THE INVESTIGATION REQUESTED IN THE PETITION.CONSEQUENTLY, IN VIEW OF THE NEED TO ALLOCATE AND PRIORITIZE NHTSA?S LIMITED RESOURCES T
PE04021 · Throttle Control System
Opened Mar 3, 2004 · Closed Jul 22, 2004
Status: closed (inferred from source dates) · Vehicle Speed Control
THE LEXUS MODELS WERE THE SUBJECT OF DEFECT PETITION (DP) 04-003.TWELVE ODI COMPLAINTS ARE DUPLICATIVE TO TOYOTA REPORTS, INCLUDING THE TWO MINOR CRASHES.THE V6 EQUIPPED SOLARA MODELS HAVE BEEN EXCLUDED BECAUSE THEY DO NOT CONTAIN THE SUBJECT THROTTLE CONTROL SYSTEM.TOYOTA INTRODUCED ELECTRONIC THROTTLE CONTROL (ETC) ON THE SUBJECT VEHICLES BEGINNING IN MODEL YEAR (MY) 2002.ODI OPENED THE INVESTIGATION TO DETERMINE IF THE SYSTEM COULD BE THE CAUSE OF COMPLAINTS ALLEGING THE ENGINE SPEED INCREASED, OR FAILED TO DECREASE, (FOR A SHORT DURATION) WHEN THE ACCELERATOR PEDAL WAS NOT DEPRESSED (THE ALLEGED DEFECT).DURING THE COURSE OF THE INVESTIGATION, ODI ANALYZED AGENCY DATA AND REVIEWED VEHICLE OWNER QUESTIONNAIRE (VOQ) REPORTS, CONDUCTED INTERVIEWS INVOLVING 113 VOQ AND 36 TOYOTA REPORTS, INSPECTED TWO COMPLAINANT VEHICLES, REVIEWED RELEVANT TOYOTA SERVICE AND NEW CAR FEATURE DOCUMENTATION, REVIEWED AND ANALYZED TOYOTA?S RESPONSES TO ODI?S INFORMATION REQUEST LETTER, CONDUCTED A LIMITED CONTROL PEDAL ASSESSMENT, AND ATTENDED A TOYOTA TECHNICAL PRESENTATION THAT INCLUDED THE ASSESSMENT OF TWO DEMONSTRATION VEHICLES.THROUGH INTERVIEWS, ODI IDENTIFIED 14 VOQ AND 6 TOYOTA REPORTS (20 UNIQUE VEHICLES) WHERE COMPLAINANTS REPORT MULTIPLE OCCURRENCES OF THE ALLEGED DEFECT.IN SOME CASES THE CONDITION WAS EXPERIENCED BY DIFFERENT VEHICLE OPERATORS OR WAS WITNESSED BY OTHER OCCUPANTS.ODI WAS UNABLE TO MAKE A DETERMINATION AS TO THE CAUSE OF 9 TOYOTA AND AN ADDITIONAL 37 VOQ REPORTS (WHICH DESCRIBE 28 UNIQUE INCIDENTS) DUE TO INSUFFICIENT INFORMATION.THE REMAINING COMPLAINANTS INTERVIEWED (62 VOQ, 21 TOYOTA) DESCRIBED CONDITIONS NOT CAUSED BY A FAILURE OF THE THROTTLE CONTROL SYSTEM AND WERE THUS CONSIDERED UNRELATED TO THE INVESTIGATION.NONE OF THE COMPLAINANTS INTERVIEWED REPORTED A COMPONENT FAILURE (OR OTHER INDICATOR OF A SYSTEM FAILURE) AS THE POTENTIAL CAUSE OF INCIDENTS RELEVANT TO THIS INVESTIGATION.IN MANY CASES, THE COMPLAINT VEHICLES WERE SUBSEQUENTLY INSPECTED BY DEALERSHIP OR MANUFACTURER REPRESENTATIVES WHO ALSO FAILED TO IDENTIFY A FAULT WITHIN THE VEHICLE.TOYOTA IDENTIFIED 43 RELATED WARRANTY CLAIMS, 24 OF WHICH WERE FOR DIAGNOSTIC PURPOSES ONLY (NO REPAIRS PERFORMED).ODI FOUND NOTHING ABNORMAL IN THE CONTROL PEDAL CONFIGURATION OF THE SUBJECT VEHICLES.A DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE THE ATTACHED SUMMARY FOR FURTHER DETAIL.
DP04003 · Throttle Control System
Opened Feb 17, 2004 · Closed Mar 5, 2004
Status: closed (inferred from source dates) · Vehicle Speed Control
THE POPULATION NUMBER NOTED ABOVE IS ESTIMATED.IN THE JANUARY 15TH, 2004 PETITION REQUEST LETTER TO THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION (NHTSA), THE PETITIONER IDENTIFIED 37 VOQ COMPLAINTS AS RELATED TO VEHICLE SPEED CONTROL ISSUES SIMILAR TO THOSE THE PETITIONER ALLEGEDLY EXPERIENCED IN THEIR OWN VEHICLE ON MULTIPLE OCCASIONS (AS DESCRIBED IN THE PETITION REQUEST LETTER).DURING IT'S CONSIDERATION OF THE REQUEST, THE OFFICE OF DEFECTS INVESTIGATION (ODI) REVIEWED THE 37 COMPLAINTS AND CONCLUDED THAT 34 OF THE COMPLAINTS DID NOT INVOLVE A THROTTLE CONTROL ISSUE AS DESCRIBED AND ALLEGED BY THE PETITIONER; THREE VOQS (ONE OF WHICH IS THE PETITIONER'S) DO ALLEGE A THROTTLE CONTROL ISSUE.HOWEVER, THE THROTTLE CONTROL ISSUES ALLEGED BY THE PETITIONER ARE SIMILAR TO THOSE ALLEGED IN THE SUPPORTING VOQS FOR PRELIMINARY EVALUATION PE04-021 WHICH INVOLVES THE THROTTLE CONTROL SYSTEM ON MODEL YEAR 2002 AND 2003 TOYOTA CAMRY AND CAMRY SOLARA MODELS.BASED ON ODI'S REVIEW OF AVAILABLE SERVICE INFORMATION, IT APPEARS THE THROTTLE CONTROL SYSTEM MANUFACTURED ON THE LEXUS ES300 MODELS IS THE SAME AS, OR SIMILAR TO, THE THROTTLE CONTROL SYSTEM USED ON THE TOYOTA CAMRY AND CAMRY SOLARA MODELS.ACCORDINGLY, THE ES300 MODELS WILL BE ADDED TO THE SCOPE OF PE04-021 AND THE PETITION IS GRANTED.