NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
50 reportsClear category filter22,300 miles · Mar 11, 2004
Vehicle Speed Control
I PUCHASED A 2002 LEXUS 300 FROM WESTSIDE LEXUS IN HOUSTON, TEXAS. SINCE PURCHASE THE VEHICLE HAS SURGED WHEN SHIFTING AT LOWER SPEEDS NUMEROUS TIMES AND HAS SURGED WHEN THE VECHILE IS ON CRUISE CONTROL. I HAVE COMPLAINED NUMEROUS TIMES TO WESTSIDE LEXUS ABOUT THE PROBLEM BUT THEY AWAYS SAY THAT LEXUS IS AWARE OF THE PROBLEM A…
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I PUCHASED A 2002 LEXUS 300 FROM WESTSIDE LEXUS IN HOUSTON, TEXAS. SINCE PURCHASE THE VEHICLE HAS SURGED WHEN SHIFTING AT LOWER SPEEDS NUMEROUS TIMES AND HAS SURGED WHEN THE VECHILE IS ON CRUISE CONTROL. I HAVE COMPLAINED NUMEROUS TIMES TO WESTSIDE LEXUS ABOUT THE PROBLEM BUT THEY AWAYS SAY THAT LEXUS IS AWARE OF THE PROBLEM AND IS TRYING TO COME UP WITH A FIX. LAST YEAR THEY ADJUSTED THE ENGINE CONTROL MODULE (ECM) CALIBRATION AND LEXUS SAID THE CAR SHOULD DRIVE BETTER - IT DID AT FIRST BUT IS NOW BACK TO THE SAME OLD SURGING AT SLOW SHIFTING SPEEDS. I BELIEVE LEXUS INTRODUCED THE ES330 MODEL THIS YEAR TO AVOID A PROBLEM WITH THE ES300 THEY COULD NOT FIX. I AM DRIVIG AN UNSAFE VEHICLE THAT LEXUS MAKES NO EFFORT TO FIX EXCEPT HAVE THE SERVICE TECH. GIVE LAME EXCUSES. I THOUGHT I WAS PURCHASING AN UPSCALE CAR TO DRIVE INSTEAD IT HAS TURNED OUT TO BE A MISERABLE UNSAFE EXPERIENCE. PLEASE MAKE LEXUS FIX THE DEFECT OR MAKE THEM REFUND ME MY PURCHASE PRICE. THANK YOU.*AK
NHTSA ODI #10061924
19,500 miles · Mar 9, 2004
Vehicle Speed Control
WAS DRIVING TO CALIFORNIA IN MY 2002 LEXUS ES300 LAST SEPTEMBER AND WAS ADJUSTING THE CRUISE CONTROL WHEN SUDDENLY IT ACCELERATED AS IF I HAD FLOORED THE GAS PEDAL. INCIDENT DID NOT RESULT IN AN ACCIDENT. NO PROBLEMS SINCE THEN BUT DECIDED TO REPORT IT AS I READ AN ARTICLE IN THE NEWSPAPER TODAY THAT YOU WERE INVESTIGATING UNEX…
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WAS DRIVING TO CALIFORNIA IN MY 2002 LEXUS ES300 LAST SEPTEMBER AND WAS ADJUSTING THE CRUISE CONTROL WHEN SUDDENLY IT ACCELERATED AS IF I HAD FLOORED THE GAS PEDAL. INCIDENT DID NOT RESULT IN AN ACCIDENT. NO PROBLEMS SINCE THEN BUT DECIDED TO REPORT IT AS I READ AN ARTICLE IN THE NEWSPAPER TODAY THAT YOU WERE INVESTIGATING UNEXPECTED ACCELERATIONS FOR THIS CAR.
NHTSA ODI #10060813
12 miles · Nov 11, 2003
Air BagsService Brakes, HydraulicSteeringCrash
1. WHILE PULLING INTO A PARKING SPACE, AT 2-4 MPH, WITH MY FOOT ON THE BRAKE, THE CAR SUDDENLY ACCELERATED AT FULL SPEED, JUMPING THE CURB AND HITTING A TREE WITH FULL FORCE. BECAUSE OF PREVIOUS CONCERNS WITH THROTTLE PROBLEMS NOTED WITH THE DEALERSHIP AT 1000 AND 5000 MILE CHECK, I IMMEDIATELY CALLED THE LEXUS DEALERSHIP. AF…
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1. WHILE PULLING INTO A PARKING SPACE, AT 2-4 MPH, WITH MY FOOT ON THE BRAKE, THE CAR SUDDENLY ACCELERATED AT FULL SPEED, JUMPING THE CURB AND HITTING A TREE WITH FULL FORCE. BECAUSE OF PREVIOUS CONCERNS WITH THROTTLE PROBLEMS NOTED WITH THE DEALERSHIP AT 1000 AND 5000 MILE CHECK, I IMMEDIATELY CALLED THE LEXUS DEALERSHIP. AFTER A CONFERENCE CALL WITH LEXUS ROADSIDE ASSISTANCE AND THE DEALERSHIP, MY CAR WAS FLAT BEDDED TO THE DEALERSHIP. THE FRONTAL CRASH RENDERED THE VEHICLE UN-DRIVABLE. RADIATOR DAMAGE WITH LEAKAGE OF FLUID COVERED A PORTION OF THE PARKING LOT. THE LEXUS DEALERSHIP SAID THEY WAS NO PROBLEM WITH THE CAR. I COULD HAVE BEEN KILLED OR SOMEBODY ELSE LIVE COULD HAVE BEEN IN DANGER. 2. THE FRONT AIR BAGS DID NOT INFLATE. 3. THE BRAKE ROTORS HAD TO BE CORRECTED AT 1500 MILES AND A "PART" WAS ORDERED AND PUT ON THE CARE TO CORRECT THIS PROBLEM. 4. THE CAR WHEN DRIVING AT ABOVE 50 PULLS TO THE LEFT AND FROM THE BEGINNING IT FELT AS THOUGH THE CAR WAS UNEVEN EVEN WHEN NOT MOVING. AT THAT TIME I REQUESTED A WRITTEN EXPLANATION OF THIS PROBLEM AND TOLD MY RECORD AT THE DEALERSHIP WOULD SUBSTANTIATE THIS. ON THE NIGHT OF THE ACCIDENT I LEARNED BY REVIEWING COMPLAINTS FROM THE OFFICE OF DEFECT INVESTIGATIONS ON THE NHTSA WEB SITE THAT THE PROBLEMS HAVE BEEN KNOWN BY THE CORPORATE OFFICE OF LEXUS FROM AS EARLY AS JANUARY, 2002 IN REGARDS TO ALL OF THE ABOVE PROBLEMS. I ALSO FOUND OUT THERE HAVE BEEN TWO RECALLS ON THIS VEHICLE THAT I WAS NOT INFORMED ABOUT. I WILL BE REQUESTING AN INVESTIGATION WITH THE LEXUS EAST REGIONAL OFFICE AND DISCUSSING THIS WITH THE ROCKVILLE LEXUS OFFICE. I BELIEVE THAT THIS CAR IS UNSAFE TO DRIVE. I BROUGHT THE LEXUS VEHICLE EVEN WITH IT'S PRICE TAG BECAUSE OF ITS REPUTATION AND TO DRIVE MY 3 YEAR OLD GRANDSON AND 1 YEAR OLD GRANDDAUGHTER IN THE SAFEST MANNER I COULD FACILITATE. I AM SURE THAT MY SON AND DAUGHTER-IN-LAW WILL NOT ALLOW THIS AFTER THIS CRASH!!!!*AK UPDATED 7/3/12 *CN
NHTSA ODI #10045944
18,000 miles · Sep 9, 2003
Vehicle Speed Control
I WAS DRIVING AT ABOUT 35 MPH ON HIGHWAY. WHEN THE TRAFFIC SLOWED DOWN, I APPLIED THE BRAKE TO BRING DOWN THE SPEED OF THE CAR TO ABOUT 3-7 MPH. AFTER FOLLOWING THE CAR IN FRONT OF ME FOR ABOUT 5 SECONDS AT ABOUT 3/4 CAR DISTANCE, I SAW THE CAR IN FRONT OF ME SPEEDED UP SLOWLY AND I DECIDED TO FOLLOW UP BY PRESSING THE ACCELERAT…
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I WAS DRIVING AT ABOUT 35 MPH ON HIGHWAY. WHEN THE TRAFFIC SLOWED DOWN, I APPLIED THE BRAKE TO BRING DOWN THE SPEED OF THE CAR TO ABOUT 3-7 MPH. AFTER FOLLOWING THE CAR IN FRONT OF ME FOR ABOUT 5 SECONDS AT ABOUT 3/4 CAR DISTANCE, I SAW THE CAR IN FRONT OF ME SPEEDED UP SLOWLY AND I DECIDED TO FOLLOW UP BY PRESSING THE ACCELERATOR MODERATLY. THE CAR FIRST SHUDDERED, THEN PAUSED FOR ABOUT 1 SECOND, AND FINALLY ACCELERATED AT ALMOST MAXIMUM POWER. THIS WAS A NEAR MISS. BEFORE THIS HAPPENED, I BROUGHT OUR CAR TO LEXUS DEALER TO COMPLAIN ABOUT SHUDDERING/PAUSING WHEN ACCELERATING FROM LOW SPEED AFTER THE CAR WAS UPDATED WITH TSB-TC004-03; THE CHIEF TECHNICIAN DROVE THE CAR AND REPRODUCED THE KIND OF PROBLEMS THAT WE HAD. HOWEVER, HE SAID THAT HE COULD NOT DO ANYTHING ABOUT IT AND WAS GOING TO WRITE A REPORT TO TOYOTA CORP BECAUSE IT WAS A SOFTWARE PROBLEM. ON THE OTHER HAND, THE RECEIPT FROM THE DEALER SAID THAT THEY DID NOT FIND ANY ABNORMAL TRANSMISSION SHIFT DURING TEST DRIVING, BUT WOULD FILE A REPORT. WHAT A CONTRADICATION! THE DANGER OF THIS TRANSMISSION PROBLEM WAS FURTHER MAGNIFIED BY THE FACT THAT 2002 ES300 RUNS VERY SMOOTHLY AT MOST TIMES (>98%). THIS SHUDDER/PAUSE/ACCELERATION OR PAUSE/ACCELERATION THAT ONLY OCCURS SPORADICALLY UNDER VERY SPECIAL CONDITIONS GIVES DRIVERS SURPRISE THAT IS THE LAST THING THEY WANT DURING DRIVING. FOR CURIOSITY, I TESTED DRIVING THE CAR FOR ABOUT 50 MINIUTES BY REPEATLY SLOWING DOWN TO ABOUT 5 - 10 MPH BY APPLYING BRAKE, THEN ALLOWING THE CAR TO ROLL FOR ABOUT 3 SECONDS WITHOUT PRESSING GAS PADDLE, AND THEN ACCELERATING MODERATELY TO ABOUT 20 - 30 MPH. THE PROBOBILITY FOR THE SHUDDER/PAUSE/ACCELERATION IS ABOUT 5%, WHILE THAT FOR PAUSE/ACCELERATION ABOUT 15%. IT SEEMED THAT THIS PROBLEM HAPPENDED MORE OFTEN ON DOWN/UP HILL.. *AK
NHTSA ODI #10037542
17,000 miles · Aug 14, 2003
Air BagsService Brakes, HydraulicVehicle Speed ControlCrash
WHEN PULLING INTO A PARKING SPACE TRAVELING AT LESS THEN 10 MILES PER HOUR, THE CAR SUDDENLY ACCELERATED, PROCEEDED FORWARD HITTING ANOTHER PARKED CAR HEAD ON. THE VEHICLE THEN JUMPED A CURB AND HIT A SECOND CAR. WHEN ATTEMPTING TO STOP THE CAR USING THE BRAKES, THE BRAKE PEDAL WAS DEPRESSED BUT THE CAR DID NOT STOP. IN ADDIT…
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WHEN PULLING INTO A PARKING SPACE TRAVELING AT LESS THEN 10 MILES PER HOUR, THE CAR SUDDENLY ACCELERATED, PROCEEDED FORWARD HITTING ANOTHER PARKED CAR HEAD ON. THE VEHICLE THEN JUMPED A CURB AND HIT A SECOND CAR. WHEN ATTEMPTING TO STOP THE CAR USING THE BRAKES, THE BRAKE PEDAL WAS DEPRESSED BUT THE CAR DID NOT STOP. IN ADDITION THE AIR BAG FAILED TO DEPLOY. SIGNIFICANT DAMAGE WAS DONE TO TWO OTHER VEHICLES BESIDE MINE.*AK UPDATED 7/3/12 *CN
NHTSA ODI #10032815
Mileage unknown · Jun 4, 2003
Vehicle Speed ControlCrash
2002 LEXUS MALFUNCTIONING BRAKE SYSTEM. *MR THE ENGINE SURGED WHILE BRAKING. IT WAS INDICATED THAT THIS MAY BE DUE TO AN INCREASE IN IDLING SPEED WHEN THE A/C WAS OPERATING. ON ONE OCCASION THE VEHICLE CONTINUED TO MOVE ALTHOUGH THE CONSUMER APPLIED EXTREME PRESSURE ON THE BRAKE PEDAL. *SCC *NLM
NHTSA ODI #10022535
Mileage unknown · Jan 9, 2003
Vehicle Speed Control
THE SPEEDOMETER IS NOT VISIBLE IN BRIGHT SUNLIGHT. CONSUMER HAS NO IDEA HOW FAST THE VEHICLE IS GOING. *JG *JB *NLM
NHTSA ODI #10001465
Mileage unknown · Dec 17, 2002
Vehicle Speed Control
WHILE DRIVING THE VEHICLE AT ANY SPEED, THE ENGINE SUFFERED SUDDEN ACCELERATION. THE DEALER COULD NOT DUPLICATE OR CORRECT THE PROBLEM. TS WHEN ACCELERATING TO CHANGE LANE OR ENTER THE FREEWAY, THE VEHICLE ALMOST STALLED AND OR DECELERATED. SCC
NHTSA ODI #10001095
Mileage unknown · Aug 26, 2002
Vehicle Speed ControlCrash
WHILE PULLING INTO PARK WITH FOOT ON THE BRAKES, VEHICLE SUDDENLY ACCELERATED AND HIT A TREE. ALSO WHILE DRIVING IN CRUISE CONTROL, TAPPED ON BRAKES TO DISENGAGE CRUISE CONTROL AND VEHICLE SUDDENLY ACCELERATED.*AK DEALER CHECKED VEHICLE AND COULD NOT FIND ANY PROBLEMS. *SLC
NHTSA ODI #8017143
Mileage unknown · Jul 15, 2002
Vehicle Speed Control
WE HAVE A SURGE OR SKIP ON DEACCELERATION.THIS WILL HAPPEN FROM 40 TO 60 MPH. THE DEALER WILL ONLY TELL US THEY ARE AWARE OF THE PROBLEM BUT HAVE NO CURE. I FEEL THAT AFTER 7 MONTHS THEY SHOULD HAVE A FIX.*AK
NHTSA ODI #764271
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.