2006 Hyundai Sonata

Fatalities reported

Owners filed 1,047 complaints about this vehicle with federal regulators, most often about the air bags. It has been recalled 11 times.

When it fails
020k40k60k90k120k200k

867 complaints record an odometer reading. Failures cluster around 60,00075,000 miles; the median is 70,000 miles.

What fails
ComponentReportsCrashesFiresInjuries
Air Bags337
14119
Visibility143
100
Electrical System55
010
Suspension49
010
Seat Belts44
201
Service Brakes37
413
Electronic Stability Control (esc)36
000
Air Bags › Frontal36
101
Engine27
012
Visibility/Wiper26
000

11 safety recalls

Part 573 reports
Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip18V026000
Filed Jan 9, 201887,854 vehiclesHyundai Motor America

Defect. Hyundai Motor America (Hyundai) is recalling certain 2006-2011 Hyundai Azera and 2006 Hyundai Sonata vehicles. Water may enter the Anti-lock Brake (ABS) Module and result in an electrical short .

Risk. An electrical short within the ABS Module may cause an engine compartment fire, even when the car is turned off, increasing the risk of an injury.

Remedy. Hyundai will notify owners, and dealers will install a relay in the vehicle's main junction box to prevent the risk of an ABS short-circuit while the car is turned off, free of charge. The recall began on February 19, 2018. Owners may call Hyundai at 1-800-633-5151. Hyundai's number for this recall is 172.

Suspension › Rear13V354000
Filed Aug 12, 2013364,502 vehiclesHyundai Motor Company

Defect. Hyundai is recalling certain model year 2006-2010 Sonata vehicles manufactured March 1, 2005, through January 21, 2010; and model year 2006-2011 Azera vehicles manufactured September 27, 2005, through November 22, 2010 originally sold in, or currently registered in, Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia. Road salt and water can enter portions of the rear crossmember, leading to corrosion of the crossmember steel. This may lead to detachment of one of the rear control arms.

Risk. Control arm separation may suddenly change the rear wheel alignment, affecting the handling of the vehicle, increasing the risk of a crash.

Remedy. Hyundai will notify owners, and dealers will repair or replace the crossmember assembly. The recall began on October 8, 2013. Owners may contact Hyundai Customer Care Center at 1-800-633-5151. Hyundai's recall number is 113.

Exterior Lighting09V280000
Filed Jul 21, 20093,011 vehiclesHyundai Caribbean-Puerto Rico

Defect. HYUNDAI IS RECALLING 3,011 MODEL YEAR 2005-2007 ELANTRA, TUCSON, SONATA, AZERA AND ACCENT VEHICLES. A MALFUNCTIONING STOP LAMP SWITCH MAY CAUSE THE BRAKE LIGHTS TO FAIL TO ILLUMINATE WHEN THE BRAKE PEDAL IS DEPRESSED OR MAY CAUSE THE BRAKE LIGHTS TO REMAIN ILLUMINATED WHEN THE BRAKE PEDAL IS RELEASED. A DEFECTIVE STOP LAMP SWITCH MAY ALSO AFFECT THE OPERATION OF THE BRAKE-TRANSMISSION SHIFT INTERLOCK FEATURE SO THE TRANSMISSION WOULD NOT BE ABLE TO BE SHIFT OUT OF THE "PARK" POSITION. IT MAY ALSO CAUSE THE ELECTRONIC STABILITY CONTROL (ESC) MALFUNCTION LIGHT TO ILLUMINATE, AND IT MAY NOT DEACTIVATE THE CRUISE CONTROL WHEN THE BRAKE PEDAL IS DEPRESSED.

Risk. ANY OF THESE MALFUNCTIONS COULD LEAD TO A CRASH.

Remedy. DEALERS WILL REPLACE THE STOP LAMP SWITCH FREE OF CHARGE. THE RECALL BEGAN ON SEPTEMBER 2, 2009. OWNERS MAY CONTACT HYUNDAI OF PUERTO RICO CUSTOMER SERVICE AT 1-787-999-4310.

Exterior Lighting › Brake Lights › Switch09V122000
Filed Apr 15, 2009532,633 vehiclesHyundai Motor Company

Defect. HYUNDAI IS RECALLING 532,633 MY 2006-2007 ACCENT, ENTOURAGE, SONATA, MY 2007 AZERA, ELANTRA AND SANTA FE, MY 2005-2007 TUCSON AND MY 2007-2008 VERACRUZ VEHICLES. THE STOP LAMP SWITCH IN THE AFFECTED VEHICLES MAY MALFUNCTION. A MALFUNCTIONING STOP LAMP SWITCH MAY CAUSE THE BRAKE LIGHTS TO NOT ILLUMINATE WHEN THE BRAKE PEDAL IS DEPRESSED OR MAY CAUSE THE BRAKE LIGHTS TO REMAIN ILLUMINATED WHEN THE BRAKE PEDAL IS RELEASED. A STOP LAMP SWITCH MALFUNCTION MAY ALSO AFFECT THE OPERATION OF THE BRAKE-TRANSMISSION SHIFT INTERLOCK FEATURE SO THE TRANSMISSION SHIFTER WOULD NOT BE ABLE TO BE SHIFTED OUT OF THE PARK POSITION. IT MAY ALSO CAUSE THE ELECTRONIC STABILITY CONTROL (ESC) MALFUNCTION LIGHT TO ILLUMINATE, AND IT MAY NOT DEACTIVATE THE CRUISE CONTROL WHEN THE BRAKE PEDAL IS DEPRESSED.

Risk. ANY OF THESE MALFUNCTIONS, ALONE OR IN COMBINATION, MAY LEAD TO A CRASH.

Remedy. DEALERS WILL REPLACE THE STOP LAMP SWITCH FREE OF CHARGE. THE RECALL BEGAN ON JUNE 29, 2009. OWNERS MAY CONTACT THE HYUNDAI CUSTOMER ASSISTANCE CENTER AT 1-800-633-5151.

Exterior Lighting09E012000
Filed Apr 7, 200916,270 vehiclesSabersport

Defect. SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.

Risk. DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.

Remedy. SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT 1-909-598-7589.

Air Bags08V161000
Filed Apr 10, 2008393,308 vehiclesHyundai Motor Company

Defect. HYUNDAI IS RECALLING 393,308 MY 2006-2008 SONATA VEHICLES EQUIPPED WITH AN ADVANCED AIR BAG SYSTEM WHICH FEATURES AN OCCUPANT CLASSIFICATION SYSTEM (OCS) IN THE RIGHT FRONT SEAT. THE PURPOSE OF THE OCS IS TO DISABLE THE RIGHT PASSENGER SEAT FRONT AIR BAG WHEN IT DETECTS THE PRESENCE OF A CHILD RESTRAINT SYSTEM OR SMALL CHILD IN THE RIGHT FRONT SEAT. THE RIGHT FRONT AIR BAG IS DISABLED TO PREVENT INJURIES TO A CHILD THAT MAY RESULT FROM A RIGHT FRONT AIR BAG INFLATION DURING A CRASH.

Risk. MISCLASSIFICATION OF A SMALL STATURE ADULT AS A CHILD IN THE RIGHT FRONT PASSENGER SEAT MAY CAUSE THE RIGHT FRONT AIR BAG TO NOT INFLATE IN AN ACCIDENT THAT MERITS AIR BAG DEPLOYMENT AND MAY RESULT IN INJURY TO THE RIGHT FRONT OCCUPANT.

Remedy. DEALERS WILL VERIFY THAT THE OCS DOES NOT PROPERLY RECOGNIZE A PROPERLY SEATED ADULT OCCUPANT. AFTER VERIFICATION, DEALERS WILL REMOVE THE RIGHT FRONT SEAT CUSHION ASSEMBLY AND SHIP IT TO AN EVALUATION AND REPAIR FACILITY. THIS FACILITY WILL EVALUATE AND REPAIR OR REPROGRAM THE SEAT CUSHION AND OCS AS NECESSARY. THE RECALL IS EXPECTED TO BEGIN ON OR ABOUT MAY 26, 2008. OWNERS MAY CONTACT HYUNDAI AT 1-800-633-5151.

Exterior Lighting › Headlights08E021000
Filed Mar 7, 20084,085 vehiclesHyundai Motor Company

Defect. HYUNDAI-KIA IS RECALLING 4,085 REPLACEMENT HEADLAMP ASSEMBLIES SOLD FOR USE ON 2006-2008 SONATA AND AZERA VEHICLES. THESE HEADLAMP ASSEMBLIES MAY NOT HAVE BEEN ALIGNED PROPERLY AND FAIL TO CONFORM TO THE PHOTOMETRIC REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.

Risk. IMPROPER AIMING OF THE HEADLAMP MAY RESULT IN POOR VISIBILITY POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy. HYUNDAI-KIA DEALERS HAVE BEEN NOTIFIED AND INSTRUCTED TO RETURN THEIR SUPPLY TO HYUNDAI MOTOR AMERICA. NONE OF THE HEADLAMPS WERE SOLD AS RETAIL. AS A RESULT, AN OWNER NOTIFICATION LETTER WILL NOT BE ISSUED.

Equipment › Other › Labels06V234000
Filed Jun 26, 200643,301 vehiclesHyundai Motor Company

Defect. ON CERTAIN PASSENGER VEHICLES, THE AIR BAG WARNING LABEL INSTALLED ON THE SUNVISORS HAD LOST ADHESION TO THE SUNVISORS AND HAD DISTORTED OR SEPARATED FROM THE SUN VISORS.

Risk. IF THE LABELS ARE DISTORTED OR MISSING, THE DRIVER OR FRONT SEAT PASSENGER WILL NOT HAVE INFORMATION AVAILABLE THAT MAY HELP PROTECT THEM IN THE EVENT OF A CRASH.

Remedy. DEALERS WILL REPLACE THE SUNVISOR ASSEMBLIES FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 2, 2006. OWNERS MAY CONTACT HYUNDAI AT 1-800-633-5151.

Exterior Lighting › Headlights06V180000
Filed May 22, 2006463 vehiclesHyundai Motor Company

Defect. ON CERTAIN PASSENGER VEHICLES, THE INNER BEZELS OF THE HEADLAMPS WERE NOT PROPERLY ASSEMBLED WHICH MAY CAUSE THE TURN SIGNAL LENSES TO BE IMPROPERLY POSITIONED.

Risk. AN IMPROPERLY POSITIONED TURN SIGNAL LENS MAY REDUCE THE INTENSITY OF THE TURN SIGNAL ILLUMINATION, REDUCING ITS VISIBILITY TO ONCOMING TRAFFIC, WHICH MAY RESULT IN A CRASH.

Remedy. DEALERS WILL REPLACE THE LEFT AND RIGHT HEADLAMP ASSEMBLIES FREE OF CHARGE. THE RECALL BEGAN ON JUNE 26, 2006. OWNERS MAY CONTACT HYUNDAI AT 1-800-633-5151.

Seats › Front Assembly › Recliner05V377000
Filed Aug 29, 200536,000 vehiclesHyundai Motor Company

Defect. ON CERTAIN PASSENGER VEHICLES, THE FRONT SEAT BELT MAY INTERFERE WITH THE MANUAL SEAT BACK RECLINER KNOB AND COULD CAUSE THE FRONT MANUAL SEAT BACK RECLINER TO INADVERTENTLY RELEASE.

Risk. THE INADVERTENT RELEASE OF A FRONT SEAT BACK RECLINER MAY RESULT IN INJURY TO VEHICLE OCCUPANTS.

Remedy. DEALERS WILL REPLACE THE MANUAL SEAT BACK RECLINER KNOB(S) FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 14, 2005. OWNERS MAY CONTACT HYUNDAI AT 1-800-633-5151.

Showing 10 of 11 campaigns, newest first.

What owners reported

Newest filings
Engine
Filed Dec 22, 2025112,000 milesNY

The contact owns a 2006 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power. No warning light was illuminated. The contact was able to pull over to the shoulder of the roadway and noticed that engine oil was leaking onto the ground and the coolant level was abnormally low. The contact stated that the vehicle failed to restart and was towed to a local independent mechanic, where it was diagnosed with a valve cover leak. The vehicle was repaired at the owner's expense; however, the failure reoccurred. The local dealer was not contacted. In addition, the contact stated that several other unknown repairs were made; however, the failure reoccurred. The contact related the failure to an unknown NHTSA Campaign; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 112,000.

Engine
Filed May 25, 2025WI

I am filing this complaint regarding a serious engine issue with my 2006 Hyundai Sonata equipped with a 2.4L GDI engine. My vehicle experienced [engine knocking, stalling, and then seized up indicating complete Engine failure] without warning, posing a potential safety hazard while driving. The issue appears to be identical to the known manufacturing defects that Hyundai has acknowledged in its recall of 2013–2014 Sonata models with the same engine Class Type. Although my vehicle is not currently included in the official recall “ SONATA ENGINE RECALL CAMPAIGN it contains the Theta II MPI Engine which constitutes and Further solidifies proof of the ongoing Manufacturing Defects of Theta Model Engine design and exhibits the same symptoms of sudden engine failure. This raises concerns that the defect may affect a broader range of model years than Hyundai has acknowledged. I urge NHTSA to investigate this issue and determine whether the scope of the current recall should be expanded to include earlier model years such as 2006. The defect creates a significant safety risk to drivers and passengers, and Hyundai should be held accountable for all affected vehicles—not just those produced within a narrow window.

Suspension
Filed May 7, 2025UT

There is a recall for the rear lower control arms for the 2006 Hyundai sonata getting rusty and not performing. My car was taken in for an alignment and the mechanic said he isn’t able to make the toe match up to be in good driving standards. I tried reaching out to a Hyundai dealership and they checked the VIN and said they couldn’t do anything about it because my car isn’t in a certain part of the United States. If I don’t get this fixed soon the mechanic said my when could fall out of alignment and cause some serious damage to me or someone else.

Suspension
Filed Oct 3, 2024176,000 milesND

The contact owns a 2006 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the contact heard a loud bang and scraping sound coming from the vehicle. The ABS and check engine warning lights were illuminated. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the control arm and suspension had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made not aware of the failure. The failure mileage was approximately 176,000.

Air Bags
Filed Aug 8, 2024140,000 milesNV

The contact owns a 2006 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was not taken to the dealer or an independent mechanic. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 08V161000 (Air Bags); however, the VIN was not included. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 140,000.

Suspension
Filed Apr 8, 2024DE

I have a 06 sonata 2.4l that had rear control arms rotted out plus the subframe. And my esc light is on not really sure what to wit that. But my car is down now due to rear control arms needed replaced.

Suspension
Filed Feb 23, 202497,000 milesNY

The contact owns a 2006 Hyundai Sonata. The contact stated that while making a turn at 10-15 MPH, the contact heard a loud bang and scraping sound coming from the vehicle. The contact pulled over and discovered that the rear crossmember had detached. The vehicle was towed to an independent mechanic, who diagnosed that the lower and upper control arm bolts were severely corroded; however, the contact was not yet informed of what needed to be replaced. The vehicle was not repaired. The vehicle had previously been repaired under NHTSA Campaign Number: 13V354000 (Suspension); however, the failure occurred. The manufacturer was made aware of the failure. The failure mileage was approximately 97,000.

Suspension
Filed Dec 31, 2023PA

Rear lower control arm snapped

Service Brakes, Hydraulic
Filed Oct 13, 202370,000 milesFL

The contact owns a 2006 Hyundai Sonata. The contact stated that while his wife was driving at an undisclosed speed, the ABS warning light illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that water had entered the ABS module and caused an electrical short. The contact was informed that the vehicle was included in NHTSA Campaign Number: 18V026000 (Service Brakes, Hydraulic). The vehicle was not repaired. An undisclosed dealer and the manufacturer were notified of the failure and confirmed that the VIN was not included in a recall. The failure mileage was approximately 70,000. The VIN was unavailable.

Suspension
Filed Jun 30, 2023OH

The rear suspension became corroded and one of the coils or bars broke off while driving. After the coil from the suspension broke off, it punctured a tire, which blew while driving. Thankfully, I had just exited the interstate, otherwise this would've happened at high speeds. This is a known issue that has previously been reported in a recall (113). The vehicle is registered in Ohio and has been since 2014.

Engine
Filed Jun 8, 2023CA

UNKNOWN

Vehicle Speed ControlCrash
Filed May 30, 2023CA

On 5/30/23 while in traffic I pressed the brake to slow down and the car kept moving forward. I pressed the brake all the way down and I was still unable to stop the car from accelerating. I rear-ended the vehicle in front of me. My car is currently being inspected by a mechanic that my insurance company recommended.

EngineFire2 injured
Filed May 20, 2023MO

MY SON WAS DRIVING AND HEARD LOUD POP AND SAW FLAMES COMING FROM HOOD FIRE DEPARTMENT PUT OUT FIRE CAR IS COMPLETE LOSS

Air Bags
Filed May 3, 202348,000 milesPA

The contact owns a 2006 Hyundai Sonata. The contact stated that the air bag warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The dealer was notified of the failure. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 48,000.

Service Brakes, Hydraulic › Foundation Components › Hoses, Lines/Piping, and Fittings
Filed Mar 8, 2023168,000 milesIL

The contact owns a 2006 Hyundai Sonata. The contact stated that while driving into the driveway and depressing the brake pedal, the brake pedal went to the floorboard. The failure caused the vehicle to roll to a stop instead of stopping immediately. The brake failure warning light was illuminated. The contact, who is a certified mechanic, inspected the vehicle and found that the rear brake lines and the cross over line was completely rusted and there was a hole from the rust in the lines. The vehicle had not been repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 168,000.

Air Bags
Filed Aug 11, 2022CA

Passenger occupant classification sensor fails to properly identify whether an adult or child is sitting in the front passenger seat causing the airbag to deploy when it shouldn't. If a child is in the front passenger seat and we get into an accident, the child could be hurt or killed by the airbag. We brought it into the Hyundai dealership after receiving a recall notice that it may fail to properly detect whether a child is in the seat or not. At the time of the recall, the dealerships instructions were to place a certain amount of weight on the seat and if the airbag was still disabled then it was determined to be working correctly. I have since been made aware of a Hyundai TSB that came out a couple of years later that stated in all cases the seat cushion was to be removed and sent back to Hyundai for recalibration. In June 2021 the airbag light came on due to a code B1448. In September 2021 I found another TSB by Hyundai stating that they have extended the warranty on the passenger OCS to 15 years, unlimited mileage. The inspection report for the B1448 was on June 7, 2021 and we purchased the car in July 2006. When I called the closest Hyundai dealership regarding the issue they said I was 2 months past the 15 year warranty and there was nothing they could do. I explained that that the code presented itself before the 15 year warranty. It upsets me that I took it in for the airbag recall and the faulty OCS was not replaced at that time. Now I'm stuck driving around a car

Air Bags
Filed Jul 28, 2022150,000 milesCA

The contact owns a 2006 Hyundai Sonata. The contact stated the air bag warning light remained illuminated. The contact also stated that the air bag warning light was related to the seat belt which was repaired before; however, the air bag light continued to remain illuminated. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 150,000.

Air BagsFire
Filed Jul 11, 2022MD

I financed my 2006 Hyundai Sonata from a Maryland state car dealer. At the time of my purchase, the dealer didn’t disclose to me that the vehicle had a branded title. The branded title was discovered by Toco Warranty when I requested a auto extended warranty quote. I contacted the MVA, and was informed that it’s illegal to finance a vehicle in the state of Maryland with a branded title since the actual miles are unknown and this is required by dealers in Maryland in order to finance vehicles to consumers. Although I was no longer required to make payments to the dealer, my vehicle has a ABS malfunction, brake line failure, that has caused brake fluid leakage and brake failure as well as a critical control arm needed repair. I’m disabled and on a fixed income, and purchased this vehicle to assist in getting to and from medical appointments. The total cost of repair from Mr. Tire Auto service centers estimâtes at $2700 and Triple AAA Auto repair centers estimates $ 4700 with $ 2800 to get my vehicle in safe driving condition. Because of my low fixed income, I’m unable to make another vehicle purchase without at least $4,600 for a down payment and I don’t have the money for a new purchase nor to make needed repairs.

Air Bags
Filed Jun 22, 2022CA

The red warning airbag light stays on and it’s visible as I drive. Does this mean the airbags are not going to work should I be involved in an auto accident?

Air Bags
Filed Mar 29, 2022VA

The airbag light in my car stays illuminated and I’m not sure why. No auto/body shops will touch it and the dealership is backed up so bad it’ll be a month and a half before someone can look at it. My car can’t pass inspection like this and if I were to get into an accident it would be extremely dangerous if the airbags didn’t go off.

20 of 1,047 complaints, reproduced as filed.

Across model years

Worst on record: 2011
YearComplaintsRecallsFiresDeathsAssessment
20263100Routine
202516000Routine
202446100Routine
202386200Routine
202292300Routine
2021131400Routine
2020178410Routine
2019161060Routine
20183721131Fatalities reported
20177633111Fatalities reported
20167256281Fatalities reported
20151,1449482Do not drive
20147457400High concern
20131,9099971Fatalities reported
20121,5568951Fatalities reported
20113,376141123Fatalities reported
2010345232Fatalities reported
20094602110Above average
20084255110Above average
2007696760Above average
2006 — this page1,0471191Fatalities reported
2005165120Routine
2004202120Above average
2003199620Routine
2002319740Above average
2001205300Above average
2000276490Above average
1999124430Routine
199849100Routine
199749211Fatalities reported
199623101Fatalities reported
199566210Routine
19943100Routine
199326100Routine
199222100Routine
199129160Routine
199016300Routine

Compare every Sonata year →

Reading this record

1 death reported in complaints filed with NHTSA.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.

Most recent recall on file: Jan 9, 2018. Source: NHTSA Office of Defects Investigation.