NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
67 reportsClear category filter58,000 miles · Mar 13, 2014
Engine
SYSTEM WAS IN THE SHOP FOR ROUTINE MAINTENANCE I.E. NEW SPARK PLUGS, DRIVE BELTS, AND SPARK PLUG WIRES. PICKED UP THE VEHICLE AND DROVE FINE FOR A DAY. UPPER CAT CONVERTER GOT CLOGGED... THINGS JUST WENT DOWN HILL FROM THERE. CRANKSHAFT SEAL BUSTED, OIL PUMP FAILED, WATER PUMP HAD TO BE REPLACED. ENGINE RODS STARTED KNOCKING…
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SYSTEM WAS IN THE SHOP FOR ROUTINE MAINTENANCE I.E. NEW SPARK PLUGS, DRIVE BELTS, AND SPARK PLUG WIRES. PICKED UP THE VEHICLE AND DROVE FINE FOR A DAY. UPPER CAT CONVERTER GOT CLOGGED... THINGS JUST WENT DOWN HILL FROM THERE. CRANKSHAFT SEAL BUSTED, OIL PUMP FAILED, WATER PUMP HAD TO BE REPLACED. ENGINE RODS STARTED KNOCKING. ENGINE HAS TO BE REBUILT. HAVE BEEN UNABLE TO DRIVE MY SORENTO SINCE MARCH 2013. BOUGHT THE SORENTO IN OCTOBER 2012. JUST HAD THE SORENTO IN THE SHOP FOR ENGINE REBUILD. HAD MONEY SET ASIDE FROM TAX RETURNS. I PAID THE ORIGINAL QUOTED AMOUNT TO HAVE THE REBUILD DONE. IT IS COSTING ME $2000 IN ADDITION TO THE BASE COST THAT WAS ORIGINALLY QUOTED. I DON'T HAVE THAT KIND OF MONEY JUST LAYING AROUND FOR THOSE TYPES OF REPAIRS. OH WELL... GUESS I WON'T BE DRIVING MY CAR FOR ANOTHER WHOLE YEAR. OH... ONE MORE THING.... SINCE I AM THE SECOND OWNER KIA REFUSED TO SERVICE THE VEHICLE WITHOUT THEM WANTING OVER $8000 FOR A NEW MOTOR... FYI.... KIA WARRANTY'S AND BBB ARE BOTH WORTHLESS.. *TR
NHTSA ODI #10568953
106,000 miles · Mar 5, 2014
EngineCrash
TL* THE CONTACT OWNS A 2006 KIA SORRENTO. THE CONTACT STATED THAT WHILE DRIVING 50 MPH, THE VEHICLE STALLED AS THE CHECK ENGINE WARNING LAMP ILLUMINATED. THE CONTACT MENTIONED THAT ONCE THE VEHICLE STALLED, HE LOST CONTROL OF THE STEERING WHEEL AND CRASHED INTO A TREE. A POLICE REPORT WAS FILED AND NO INJURIES WERE REPORTED. THE…
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TL* THE CONTACT OWNS A 2006 KIA SORRENTO. THE CONTACT STATED THAT WHILE DRIVING 50 MPH, THE VEHICLE STALLED AS THE CHECK ENGINE WARNING LAMP ILLUMINATED. THE CONTACT MENTIONED THAT ONCE THE VEHICLE STALLED, HE LOST CONTROL OF THE STEERING WHEEL AND CRASHED INTO A TREE. A POLICE REPORT WAS FILED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS TAKEN TO THE DEALER BUT THE TECHNICIAN WAS UNABLE TO DIAGNOSE THE FAILURE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 106,000.
NHTSA ODI #10567472
73,100 miles · Feb 10, 2014
Electrical SystemEngineExterior Lighting
2006 KIA SORENTO COMPLAINT: ENGINE , STEERING, ELECTRICAL SYSTEM , EXTERIOR LIGHTING ,THROTTLE POSITION SENSOR I AM CHANGING THE HEAD LIGHTS EVERY 4-5 MONTH AND I THINK IT NEEDS TO BE LOOKED AT. WAS DRIVING 35 MPH WHEN THE ENGINE LIGHT AND BRAKE LIGHT CAME ON WITH NO WARNING. AND JUST LAST WEEK 2/2/2014 THE ENGINE ST…
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2006 KIA SORENTO COMPLAINT: ENGINE , STEERING, ELECTRICAL SYSTEM , EXTERIOR LIGHTING ,THROTTLE POSITION SENSOR I AM CHANGING THE HEAD LIGHTS EVERY 4-5 MONTH AND I THINK IT NEEDS TO BE LOOKED AT. WAS DRIVING 35 MPH WHEN THE ENGINE LIGHT AND BRAKE LIGHT CAME ON WITH NO WARNING. AND JUST LAST WEEK 2/2/2014 THE ENGINE STOPPED AND I HAD NO POWER STEERING AND ALSO NO BRAKES. I WAS ABLE TO COAST TO A SIDE ROAD AND BARELY GOT THE VEHICLE TO STOP. THE VEHICLE WAS TAKEN TO AN MECHANIC, WHO DIAGNOSED AND HAD TO REPLACE A THROTTLE POSITION SENSOR AND A MASS AIR FLOW METER AND AIR FILTER AND THE HARMONIC BALANCER. THIS IS CRAZY THESE PROBLEMS AND REQUIRES EXTENSIVE AND EXPENSIVE REPAIR TO THE ENGINE. THIS INDICATES TO US A MANUFACTURER'S DESIGN FLAW AND PROBABLE SAFETY ISSUE THAT SHOULD BE ADDRESSED BY KIA WORLDWIDE. IT'S DISTURBING WITH HOW MANY OTHER COMPLAINTS I'M READING ON THIS SITE ABOUT THE SAME EXACT THING! IS THERE ANY HELP OUT THERE THIS IS TOO EXPENSIVE FOR ALL THESE REPAIR. THE FAILURE MILEAGE WAS 73,100. *TR
NHTSA ODI #10563656
79,000 miles · Nov 29, 2013
Engine
WIFE WAS DRIVING 40 MPH WHEN THE ENGINE LIGHT AND BRAKE LIGHT CAME ON WITH NO WARNING. THE ENGINE STOPPED AND SHE HAD NO POWER STEERING AND ALSO NO BRAKES. SHE WAS ABLE TO COAST TO A SIDE ROAD AND BARELY GOT THE VEHICLE TO STOP. THE STEERING WAS VERY DIFFICULT. IF IT WOULD HAVE BROKE ANOTHER 200 FEET AHEAD SHE WOULD NOT HAVE BEE…
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WIFE WAS DRIVING 40 MPH WHEN THE ENGINE LIGHT AND BRAKE LIGHT CAME ON WITH NO WARNING. THE ENGINE STOPPED AND SHE HAD NO POWER STEERING AND ALSO NO BRAKES. SHE WAS ABLE TO COAST TO A SIDE ROAD AND BARELY GOT THE VEHICLE TO STOP. THE STEERING WAS VERY DIFFICULT. IF IT WOULD HAVE BROKE ANOTHER 200 FEET AHEAD SHE WOULD NOT HAVE BEEN AS LUCKY SINCE THERE IS A VERY SHARP AND DANGEROUS CURVE. THE CURVE HAS A SINGLE GUARD RAIL THAT SHE MORE IN LIKELY WOULD HAVE WENT THROUGH RESULTING IN A 400 FOOT DROP DOWN A STEEP HILL. POSSIBLY RESULTING IN A FATAL CRASH.THE VEHICLE WAS TOWED TO COUGHLIN KIA DEALERSHIP IN NEWARK OHIO. WE WERE INFORMED THAT THE CRANKSHAFT BOLT HAD BROKE IN THE MOTOR. THIS CAUSED THE TIMING PULLING AND MAIN PULLEY TO BREAK OFF. THE RESULT WAS MAJOR ENGINE DAMAGE.THE SERVICE MANAGER CONTACTED HIS KIA REGIONAL REP.AND WAS INFORMED THE DAMAGE WAS NOT COVERED UNDER THE 10 YR./100000 MILE WARRANTY. WE DID HAVE THE SAME DEALERSHIP REPLACE THE TIMING CHAIN 2YRS. EARLIER AT APPR. 57000 MILES AS KIA REQUIRES THIS MAINTENANCE DONE BEFORE 60000 MILES.THEY ALSO REPLACED THE CRANKSHAFT BOLT AS KIA RECOMMENDS IT ALSO. THIS WAS A COST OF NEARLY $800 FOR THIS SERVICE. THE ESTIMATE FOR THE ENGINE REPLACEMENT IS $4000 ON A VEHICLE VALUED AT $6000. KIA REFUSES TO DEAL WITH THIS ISSUE ON THESE MOTORS. THEIR WAS ARECALL ON THE 03 & 04 ENGINES BUT THE PROBLEM STILL EXIST. IT IS JUST A MATTER OF TIME BEFORE SOMEONE WILL BE KILLED DRIVING THESE VEHICLES. *TR
NHTSA ODI #10554094
82,000 miles · Aug 9, 2013
Engine
WE ARE THE ORIGINAL OWNERS OF THIS VEHICLE.THE ENGINE SHUTS DOWN-QUITS AT ANY SPEED (EVEN IDLE) LAST TIME AT 60 MILES AN HOUR ON THE FREEWAY. LUCKILY WAS ABLE TO GET TO THE SHOULDER W/O BEING REAR ENDED. THE VEHICLE REFUSED TO START FOR ABOUT 10 MINUTES. THEN I GOT IT STARTED AND RAN ROUGH A COUPLE OF MINUTES THEN CLEARED UP TH…
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WE ARE THE ORIGINAL OWNERS OF THIS VEHICLE.THE ENGINE SHUTS DOWN-QUITS AT ANY SPEED (EVEN IDLE) LAST TIME AT 60 MILES AN HOUR ON THE FREEWAY. LUCKILY WAS ABLE TO GET TO THE SHOULDER W/O BEING REAR ENDED. THE VEHICLE REFUSED TO START FOR ABOUT 10 MINUTES. THEN I GOT IT STARTED AND RAN ROUGH A COUPLE OF MINUTES THEN CLEARED UP THE REST OF THE WAY. ANOTHER OCCASION THE ENGINE QUIT IN THE MIDDLE OF AN INTERSECTION IN 5:00 TRAFFIC, CAUSING BAD CONJESTION. THE ENGINE LIGHT IS TRIGGERED OCCASIONALLY BUT NO REPAIR CODES ARE SEEN WHEN THE COMPUTER IS HOOKED UP. THIS IS HAPPENING ABOUT EVERY 3 -4 DAYS AND MAYBE 2 X'S IN A DAY. THIS HAS HAPPENED EVER SINCE THE DEALER CHANGED THE TIMING BELT-REGULAR MAINTENENCE ABOUT 80,0000 MI. THE VEHICLE WAS RUNNING AND SOUNDING JUST GREAT BEFORE THE KIA DEALER DID THIS. ON THE WAY HOME, THE VEHICLE WENT DEAD AND HAD NO POWER. GOT THE DEALER TO TAKE IT BACK. THINGS WERE NOT PLUGGED IN--ALTERNATOR ETC. THE MECHANIC WAS IN A HURRY TO LEAVE FOR THE WEEKEND. NOW LEFT LIFTER BANK CLATTERS UPON STARTUP A CODE WAS GIVEN THAT THE DEALER DID NOT CLEAR THE COMPUTER WHEN THE BELT WAS CHANGED. WE CLEARED IT AND THE ENGINE STILL QUITS. THE DEALER WENT OUT OF BUSINESS (GO FIGURE). ALSO THE AIR CONDITIONING QUIT DUE TO A LINE THAT WAS SPLIT POSSIBLY WHEN THE MECHANIC WAS WORKING ON THE TIMING BELT. SOMEONE IS GOING TO GET HURT (ACCIDENT) IF THIS VEHICLE CONTINUES TO DO THIS.NO ONE SEEMS TO KNOW WHAT IS WRONG. *TR
NHTSA ODI #10534483
97,000 miles · Jul 30, 2013
EnginePower TrainSteering
I WAS MERGING ONTO A HIGHWAY WHEN ALL OF A SUDDEN I HEARD A LOUD THUD AND MY BATTERY LIGHT & E BRAKE LIGHT CAME ON AND I LOST POWER STEERING. I WAS ABLE TO DRIVE THE VEHICLE TO A LOCAL MECHANIC WHO INFORMED ME THAT THE HARMONIC BALANCER HAD FALLEN OFF DUE TO THE CRANKSHAFT BOLT SHEARING OFF. ONCE IT WAS FIXED BY AN ASE CERTIFIED…
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I WAS MERGING ONTO A HIGHWAY WHEN ALL OF A SUDDEN I HEARD A LOUD THUD AND MY BATTERY LIGHT & E BRAKE LIGHT CAME ON AND I LOST POWER STEERING. I WAS ABLE TO DRIVE THE VEHICLE TO A LOCAL MECHANIC WHO INFORMED ME THAT THE HARMONIC BALANCER HAD FALLEN OFF DUE TO THE CRANKSHAFT BOLT SHEARING OFF. ONCE IT WAS FIXED BY AN ASE CERTIFIED MECHANIC, APPROXIMATELY 8000 MILES LATER I WAS DRIVING TO WORK AND THE CAR STARTED SHAKING LIKE I WAS DRIVING ON RUMBLE STRIPS. I TOOK IT BACK TO A SERVICE GARAGE AND AFTER REPLACING THE HARMONIC BALANCER AND CRANKBOLT AGAIN THEY CAME TO THE CONCLUSION THAT THE CRANKSHAFT WAS BENT. THE GARAGE SUGGESTED REPLACING THE ENTIRE CRANKSHAFT AND BALANCER AND THEN HAVING THE ENGINE REBALANCED OR A COMPLETE ENGINE REPLACEMENT BOTH OF WHICH ARE GREATER THAN $3500 TO REPAIR ON A VEHICLE THAT'S WORTH ABOUT $5500..IT'S BEEN APPROXIMATELY $2000 THAT I'VE ALREADY SPENT TO CORRECT THIS PROBLEM AND THE PROBLEM STILL EXISTS. IT'S AT A LOCAL KIA DEALERSHIP NOW, WHERE I PURCHASED THE VEHICLE AND THEY TOLD ME THAT IT'S NOT FIXABLE AND THEY CAN ONLY RECOMMEND TO REPLACE THE ENGINE WHICH WOULD COST $6,700 FOR A USED ENGINE WITH 71,000 MILES ON IT. IT SEEMS THAT THIS SAME ISSUE HAPPENS ON THESE MOTORS BETWEEN 60K AND 90K MILES THEN FROM DOING SOME RESEARCH, IT SEEMS AFTER REPAIRS ARE DONE THE SAME PROBLEM HAPPENS APPROXIMATELY 6K-10K MILES LATER. AFTER LOOKING INTO IT, IT LEADS ME TO BELIEVE THAT THE ONLY CAUSE OF THIS PROBLEM WOULD BE MANUFACTURER DEFECTS AND FAULTY PARTS. THIS HAS CAUSED ME TO BE OUT OF A VEHICLE SINCE MID NOVEMBER OF 2012. IT'S DISTURBING WITH HOW MANY OTHER COMPLAINTS I'M READING ON THIS SITE ABOUT THE SAME EXACT THING! *TR
NHTSA ODI #10532771
99,440 miles · Jul 26, 2013
EngineEngine And Engine Cooling
TL* THE CONTACT OWNS A 2006 KIA SORENTO. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE BRAKE AND BATTERY LIGHTS ILLUMINATED AS THE VEHICLE STALLED. THE CONTACT WAS ABLE TO RESTART MOMENTS LATER. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION WHERE THEY STATED THAT A BOLT IN THE CRANK SHAFT WAS FRACTURED AND THE ENGINE WO…
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TL* THE CONTACT OWNS A 2006 KIA SORENTO. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE BRAKE AND BATTERY LIGHTS ILLUMINATED AS THE VEHICLE STALLED. THE CONTACT WAS ABLE TO RESTART MOMENTS LATER. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION WHERE THEY STATED THAT A BOLT IN THE CRANK SHAFT WAS FRACTURED AND THE ENGINE WOULD NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 99,440. 8/26/13 *CN THE CONSUMER ALSO STATED THE BELTS AND CRANK PULLEY BROKER
NHTSA ODI #10531964
94,000 miles · Jul 22, 2013
Engine
FROM 9/2011 TO 7/2013 MY 2006 KIA HAS HAD THIS PROBLEM 3 TIMES AND IS CURRENTLY IN THE SHOP. WHILE DRIVING I HEAR A WEIRD NOISE AND THEN ALL THE DASHBOARD WARNING LIGHTS COME ON AND I LOSE POWER STEERING. WHEN CHECKING UNDER THE HOOD, THE BELTS HAVE ALL FALLEN OFF, A PULLEY IS LAYING UNDER ENGINE AS IS A BOLT. THE LAST TIME …
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FROM 9/2011 TO 7/2013 MY 2006 KIA HAS HAD THIS PROBLEM 3 TIMES AND IS CURRENTLY IN THE SHOP. WHILE DRIVING I HEAR A WEIRD NOISE AND THEN ALL THE DASHBOARD WARNING LIGHTS COME ON AND I LOSE POWER STEERING. WHEN CHECKING UNDER THE HOOD, THE BELTS HAVE ALL FALLEN OFF, A PULLEY IS LAYING UNDER ENGINE AS IS A BOLT. THE LAST TIME THE BOLT HAD BROKEN OFF CAUSING THE PULLEY TO FALL OFF. MECHANIC FOUND THAT THE CRANKSHAFT SPROCKET WAS BROKEN. I'M NOT SURE ABOUT TODAY AS THE CAR IS AT THE SHOP WITH THE BOLT LAYING UNDER THE ENGINE, BUT THE DRIVE PIN THAT GOES INTO THE SPROCKET OF THE PULLEY FELL OUT THE BOTTOM WHEN BEING LIFTED ONTO THE TOW TRUCK. *TR
NHTSA ODI #10526277
237,000 miles · Jun 1, 2013
Engine
I WAS DRIVING AND NOTICED THE 4-WHEEL LIGHT CAME ON. I STOPPED THE CAR AND WAITED A FEW MINUTES. WHEN I TURNED THE CAR BACK ON IT WAS MAKING A NOISE. UPON FURTHER INVESTIGATION, I FOUND THE CRANKSHAFT VERY LOOSE. THE CAR IS PRESENTLY AT THE REPAIR GARAGE AWAITING AN ESTIMATE. *TR
NHTSA ODI #10514636
92,700 miles · Apr 10, 2013
Engine
MY 22 YEAR OLD DAUGHTER WAS DRIVING THE CAR AT COLLEGE WHEN IT SUDDENLY LOST POWER STEERING AND THEN SHUT DOWN IN TRAFFIC IN THE MIDDLE OF AN INTERSECTION. LUCKILY SHE WAS NOT ON A CURVY ROAD WHEN THE POWER STEERING WENT OUT. WE HAD THE CAR TOWED AND AFTER MECHANIC'S INSPECTION WERE TOLD THAT THE CRANKSHAFT BOLT "WOBBLED" LOO…
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MY 22 YEAR OLD DAUGHTER WAS DRIVING THE CAR AT COLLEGE WHEN IT SUDDENLY LOST POWER STEERING AND THEN SHUT DOWN IN TRAFFIC IN THE MIDDLE OF AN INTERSECTION. LUCKILY SHE WAS NOT ON A CURVY ROAD WHEN THE POWER STEERING WENT OUT. WE HAD THE CAR TOWED AND AFTER MECHANIC'S INSPECTION WERE TOLD THAT THE CRANKSHAFT BOLT "WOBBLED" LOOSE AND DISRUPTED THE TIMING BELT ASSEMBLY SHUTTING DOWN THE ENGINE. THIS $2 BOLT HAS CAUSED AN ESTIMATED $3500 REPAIR BILL OR EVEN AN ENGINE REPLACEMENT. OUR RESEARCH HAS UNCOVERED TO US THAT THIS IS A COMMON PROBLEM WITH THIS 3.5L ENGINE. THIS BOLT EITHER BREAKS OR WOBBLES OUT OF IT'S THREADING TO CAUSE TIMING BELT PROBLEMS AND REQUIRES EXTENSIVE AND EXPENSIVE REPAIR TO THE ENGINE. THIS INDICATES TO US A MANUFACTURER'S DESIGN FLAW AND PROBABLE SAFETY ISSUE THAT SHOULD BE ADDRESSED BY KIA WORLDWIDE. *TR
NHTSA ODI #10505794
NHTSA investigations
1DP21003 · Throttle Control System Vulnerabilities
Opened Nov 12, 2021 · Closed Jun 20, 2023
Status: closed (inferred from source dates) · Vehicle Speed Control:throttle
The Office of Defects Investigation (ODI) of the National Highway Traffic Safety Administration (NHTSA) received a petition letter dated October 10, 2021, requesting an investigation of possible defects in the electronic throttle control (ETC) system on certain Kia vehicles resulting in the opening of DP21-003. Accordingly, Model Year (MY) 2005-2016 Kia Optima/K5, MY 2006-2015 Kia Sorento, MY 2007-2016 Hyundai Elantra, MY 2007-2016 Hyundai Santa Fe, MY 2006-2015 Hyundai Sonatas are all part of the subject population. The petition was originally filed as a Vehicle Owner Questionnaire that can be reviewed at NHTSA.gov under reference (ODI) number 11439675.On November 12, 2021, ODI opened Defect Petition DP21-003 to evaluate the petitioner?s request. ODI performed trend analyses of the VOQs related to vehicle speed control issues for all the subject vehicles and found that none of the 52 Model/Model Year Hyundai/Kia vehicles demonstrated any actionable trend that warranted an investigation.Petitioners submitted 1119 VOQs and non-VOQ cases in which sudden uncommanded acceleration (SUA) or loss of motive power (LOMP) incidents were alleged.For the 1119 reports, 220 were incidents involving crashes, from which 69 subject Hyundai-Kia vehicles were inspected by Hyundai/Kia dealer technicians, Hyundai/Kia engineers, and/or third-party representatives.ODI found the inspections identified no vehicle defects related to the ETC system.Of the 220 crash-involved reports, 13 Event Data Recorder (EDR) records were downloaded successfully and 11 of those indicated driver error: (i.e.) pedal misapplication.A condition where the accelerator pedal is mistakenly applied instead of the brake pedal when the driver wants to stop the vehicle.In addition, ODI reviewed a scientific journal paper published in Forensic Science International in 2016 by Mr. Park et al ., as well as related test videos. ODI does not believe there is any evidence of uncontrollable SUA occurrences in any of the tests reviewed. NHTSA's Office of Vehicle Safety Compliance (OVSC) reviewed the allegations regarding the potential noncompliance with Federal Motor Vehicle Safety Standard No. 124.Based on the information provided, the Agency concludes there is insufficient information for us to determine if a possible non-compliance exists.Finally, both Hyundai and Kia informed ODI that all their vehicles manufactured after 2012 were equipped with an ETC management system, in which the engine speed will go to idle when the system sees signals from both the brake pedal and accelerator pedal at the same time; this is commonly known as the brake-throttle override system.After thoroughly assessing the material submitted by the petitioner, information already in NHTSA's possession, information submitted by Hyundai and Kia in response to an Information Request letter, and the potential risks to safety implicated by the petitioner's allegation, NHTSA does not believe that a formal investigation is warranted. After full consideration of appropriate factors, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA?s reasons for denial of the petition will be published.