NHTSA

Defect investigations

NHTSA opens defect investigations when complaint patterns suggest a possible safety risk. Browse all 4,161 investigations, including 98 currently open.

According to the National Highway Traffic Safety Administration (NHTSA), the agency Office of Defects Investigation has opened 4,161 formal defect investigations into U.S. vehicles as of June 2026. Each investigation can precede a recall; see our methodology for how these federal case files are tracked.

4,161
Total
98
Open
2325
Preliminary
868
Engineering
210
Recall Queries
Status: All Open
Type: All PEEARQ
PE21003 Preliminary Evaluation Closed
2021-02-18

Extended Stopping Distance

DP21001 Defect Petition Closed
2021-01-15

Backup Lights Fail To Illuminate

PORSCHE 911 CARRERA

PE21002 Preliminary Evaluation Closed
2021-01-15

Trolley bus circuit breaker fires

FREIGHTLINER CUSTOM CHASSIS

RQ21001 Recall Query Closed
2021-01-15

Power Tailgate Release Systems

FORD FORD

PE21001 Preliminary Evaluation Closed
2021-01-08

Front Roof Panel Detachment

MERCEDES-BENZ MERCEDES BENZ

DP20005 Defect Petition Closed
2020-11-23

Loss of Direction Control

HONDA ACCORD

PE20021 Preliminary Evaluation Closed
2020-11-23

Trimark 060-1650 Door Latch Failures

PE20020 Preliminary Evaluation Closed
2020-11-22

Fore Link Failure

TESLA MODEL S

EA20003 Engineering Analysis Closed
2020-11-12

Loss of rearview camera

TESLA MODEL S

PE20019 Preliminary Evaluation Closed
2020-11-06

Rear Toe Link Adjuster Separation

PE20018 Preliminary Evaluation Closed
2020-11-05

Fuel Tank Outlet Flange Leak

PE20016 Preliminary Evaluation Closed
2020-10-09

Electric Vehicle Battery Fires

CHEVROLET CHEVROLET

PE20017 Preliminary Evaluation Closed
2020-10-09

The steering arm may fall onto roadway

PE20015 Preliminary Evaluation Closed
2020-09-21

Quarter Fender Failures

PE20014 Preliminary Evaluation Closed
2020-09-21

Rear Wheel Speed Sensor Failure

FREIGHTLINER FREIGHTLINER

RQ20001 Recall Query Closed
2020-08-31

SAM Cab Water Intrusion

EA20002 Engineering Analysis Closed
2020-08-31

Outboard Front Seat Belt Anchor Cable Failure

CHEVROLET CHEVROLET

EA20001 Engineering Analysis Closed
2020-08-31

Loss of Brake Power Assist

LAND ROVER RANGE ROVER EVOQUE

PE20013 Preliminary Evaluation Closed
2020-08-10

Clogged fuel filter causing a stall.

HONDA HONDA

PE20012 Preliminary Evaluation Closed
2020-08-06

Interior Vehicle Fire

CHRYSLER TOWN AND COUNTRY

AQ20001 Audit Query Closed
2020-07-20

Timeliness of 49 CFR 579 Reporting (EWR)

PE20011 Preliminary Evaluation Closed
2020-07-05

Fuel Line Leak

CHEVROLET CHEVROLET

PE20010 Preliminary Evaluation Closed
2020-06-22

Loss of rearview camera

TESLA MODEL S

PE20008 Preliminary Evaluation Closed
2020-06-01

Headlight Failure

KIA SORENTO

PE20009 Preliminary Evaluation Closed
2020-06-01

Momentary Increased Steering Effort

CHEVROLET CHEVROLET

PE20007 Preliminary Evaluation Closed
2020-05-07

Spoiler Cover Detachment

LAND ROVER RANGE ROVER

PE20006 Preliminary Evaluation Closed
2020-05-01

Intermittent Loss of Power Steering Assist

FREIGHTLINER FREIGHTLINER

PE20005 Preliminary Evaluation Closed
2020-04-28

mDrive Transmission Failure to Disengage

MACK MACK

DP20004 Defect Petition Closed
2020-04-24

Rear brake line failure

MERCEDES-BENZ E350

PE20004 Preliminary Evaluation Closed
2020-04-07

Loss of headlights

SUZUKI SUZUKI

DP20003 Defect Petition Closed
2020-04-03

Car (child) seat crashworthiness

NISSAN FRONTIER

PE20002 Preliminary Evaluation Closed
2020-04-01

Brake fluid leak at front brake caliper

BMW BMW

PE20003 Preliminary Evaluation Closed
2020-04-01

Vehicle Roll Away

MACK MACK

PE20001 Preliminary Evaluation Closed
2020-03-13

Supply and return heater hose rupture

DP20002 Defect Petition Closed
2020-02-07

HVAC Blower Motor Connector

PONTIAC SOLSTICE

DP20001 Defect Petition Closed
2020-01-13

Sudden Unintended Acceleration

RQ19005 Recall Query Closed
2019-12-19

Door Latch Failures

LINCOLN LINCOLN

EQ19002 EQ Closed
2019-12-16

Takata Non-Azide Driver Air Bag Inflator Ruptures

EA19005 Engineering Analysis Closed
2019-12-13

Front Wiper Transmission Inoperative

CHEVROLET CHEVROLET

PE19017 Preliminary Evaluation Closed
2019-12-12

Front Driveshaft Failure

EA19004 Engineering Analysis Closed
2019-12-01

Steering loss due to linkage separation

RAM 2500

PE19016 Preliminary Evaluation Closed
2019-11-12

Aerial Turntable Failures

EA19003 Engineering Analysis Closed
2019-10-11

Steering Oscillation

BMW BMW

PE19015 Preliminary Evaluation Closed
2019-10-09

Front Occupant Classification System Mat

NISSAN NISSAN

DP19005 Defect Petition Closed
2019-10-01

Battery Management Software Updates

TESLA MODEL S

DP19004 Defect Petition Closed
2019-09-30

Brake Actuator Valve Wear

TOYOTA AVALON HYBRID

PE19013 Preliminary Evaluation Closed
2019-09-17

Passenger Sensing System

CHEVROLET CHEVROLET

PE19011 Preliminary Evaluation Closed
2019-09-16

Seat Belt Retraction

JEEP GRAND CHEROKEE

PE19012 Preliminary Evaluation Closed
2019-09-16

Frame weld deficiencies

JEEP JEEP

PE19010 Preliminary Evaluation Open
2019-09-09

False Automatic Emergency Braking

NISSAN ROGUE SPORT

PE19014 Preliminary Evaluation Closed
2019-09-09

Active Head Rest Inadvertent Deployment

DODGE DURANGO

DP19003 Defect Petition Closed
2019-09-03

Vehicle Stalling - Manual Transmission

VOLKSWAGEN VOLKSWAGEN

DP19002 Defect Petition Closed
2019-08-16

Front Occupant Classification System Mat

NISSAN NISSAN

PE19009 Preliminary Evaluation Closed
2019-08-06

Occupant Detection System (ODS) Failure

SUBARU FORESTER

PE19008 Preliminary Evaluation Closed
2019-07-29

Seat belt buckle bracket failure

JEEP WRANGLER

EA19002 Engineering Analysis Closed
2019-07-29

Rear Suspension Control Arm Failure

NISSAN MAXIMA

EQ19001 EQ Closed
2019-07-02

Seat Belt Buckle Casings may Fail

RQ19004 Recall Query Closed
2019-06-28

Fuel Tank Flange Leak

LAND ROVER ROVER

PE19007 Preliminary Evaluation Closed
2019-06-18

Rear Leaf Spring Fractures

RQ19003 Recall Query Closed
2019-05-28

Seat Belt Anchor Cable Failure

CHEVROLET CHEVROLET

RQ19002 Recall Query Closed
2019-05-10

Brake Vacuum Pump Failure

MITSUBISHI MITSUBISHI

RQ19001 Recall Query Closed
2019-05-09

Loss of Power Steering Assist

PE19006 Preliminary Evaluation Closed
2019-05-02

Inadvertent Curtain Air Bag Deployment

MAZDA MAZDA

EA19001 Engineering Analysis Closed
2019-04-19

Electrical overstress

PE19005 Preliminary Evaluation Closed
2019-04-19

Unintended Movement

ISUZU N-SERIES

DP19001 Defect Petition Closed
2019-04-08

False Automatic Emergency Braking

NISSAN ROGUE SPORT

PE19004 Preliminary Evaluation Closed
2019-03-29

Non-crash Vehicle Fires

KIA SORENTO

PE19003 Preliminary Evaluation Closed
2019-03-29

Non-crash Vehicle Fires

HYUNDAI SANTA FE

PE19002 Preliminary Evaluation Closed
2019-03-25

Steering Oscillation

BMW BMW

PE19001 Preliminary Evaluation Closed
2019-02-01

Roof Skin Separation While Driving

CADILLAC CADILLAC

PE18015 Preliminary Evaluation Closed
2018-12-17

Lap seat belts fail to latch

PE18016 Preliminary Evaluation Closed
2018-12-17

Steering loss due to linkage separation

RAM 2500

PE18013 Preliminary Evaluation Closed
2018-12-01

Rear Suspension Control Arm Failure

NISSAN NISSAN

AQ18006 Audit Query Open
2018-12-01

Sale of noncompliant school bus

CHEVROLET CHEVROLET

PE18014 Preliminary Evaluation Closed
2018-12-01

Loss of Brake Power Assist

LAND ROVER RANGE ROVER EVOQUE

PE18012 Preliminary Evaluation Closed
2018-11-20

Brake Vacuum Pump Failure

CHEVROLET SILVERADO 1500

EA18006 Engineering Analysis Closed
2018-11-16

Steering Column Separation

DP18004 Defect Petition Closed
2018-11-16

Frame Weld Deficiencies

JEEP WRANGLER

RQ18002 Recall Query Closed
2018-11-02

Windshield Wiper Transmission Failure

CHEVROLET CHEVROLET

AQ18005 Audit Query Closed
2018-10-22

Discrepancies in Required CFR Reporting

VOLVO VOLVO

AQ18004 Audit Query Closed
2018-10-22

Recall Administration Concerns

MERCEDES-BENZ

PE18011 Preliminary Evaluation Closed
2018-10-12

Power tailgate opens unintended

FORD SUPER DUTY

PE18010 Preliminary Evaluation Closed
2018-08-21

Internal transmission failure

FORD ECONOLINE

PE18009 Preliminary Evaluation Closed
2018-08-21

Unintended aerial platform movement

DP18003 Defect Petition Closed
2018-08-21

Non-crash Vehicle Fires

HYUNDAI SANTA FE

DP18002 Defect Petition Closed
2018-08-17

Frame corrosion

TOYOTA 4RUNNER

PE18008 Preliminary Evaluation Closed
2018-08-03

Seatbelt Pretensioner Fire

FORD F-150

AQ18003 Audit Query Closed
2018-07-19

Recall Administration Concerns

PE18007 Preliminary Evaluation Closed
2018-07-16

Loss of Motive Power

FORD ESCAPE

EA18005 Engineering Analysis Closed
2018-07-03

Seat Belt Webbing Failure

VOLKSWAGEN VOLKSWAGEN

EA18004 Engineering Analysis Closed
2018-07-02

Door latch failure

LAND ROVER RANGE ROVER SPORT

DP18001 Defect Petition Closed
2018-05-23

Fuel Tank Retention Failure

HONDA HONDA

PE18006 Preliminary Evaluation Closed
2018-05-21

Front Subframe Corrosion

MAZDA MAZDA6

PE18005 Preliminary Evaluation Closed
2018-05-04

Upper Steering Column Separation

TOYOTA HIGHLANDER

AQ18002 Audit Query Closed
2018-04-23

Daimler Trucks North America Recalls

PE18004 Preliminary Evaluation Closed
2018-04-23

PNDB Electrical Power Distribution

FREIGHTLINER FREIGHTLINER

EA18003 Engineering Analysis Open
2018-04-18

Air Bag Clockspring Failure

VOLKSWAGEN JETTA SPORTWAGEN

RQ18001 Recall Query Closed
2018-04-18

Idler Pulley Bolt Failure

BMW BMW

EA18002 Engineering Analysis Closed
2018-04-18

Extended Braking Distance

MERCURY MERCURY

EA18001 Engineering Analysis Closed
2018-04-18

Extended Braking Distances

NISSAN NISSAN

Understanding NHTSA Investigations

Preliminary Evaluation (PE)

Initial assessment of a potential safety defect, typically opened after receiving multiple consumer complaints about similar issues.

Engineering Analysis (EA)

In-depth technical evaluation that may include testing, data collection from manufacturers, and detailed defect analysis.

Recall Query (RQ)

Evaluation of the effectiveness of a previously issued recall remedy, often triggered when complaints persist after a recall.

Investigation Outcomes

Investigations may result in a voluntary recall by the manufacturer, a mandatory recall order, or closure if no defect is found.

Data from NHTSA Office of Defects Investigation. PlainCars does not rate or recommend vehicles. about how PlainCars sources NHTSA data.