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
EA86020 Engineering Analysis Closed
1986-07-02

ENGINE COMPARTMENT FIRES

PE86063 Preliminary Evaluation Closed
1986-07-01

REAR SUSPENSION FAILURE

TOYOTA TOYOTA

PE86062 Preliminary Evaluation Closed
1986-06-26

LOCKING MECHANISM

PE86061 Preliminary Evaluation Closed
1986-06-23

DEFECTIVE CASTLE NUT

DP86012 Defect Petition Closed
1986-06-20

SUDDEN ACCELERATION

PE86060 Preliminary Evaluation Closed
1986-06-18

CO INTRUSION

PE86059 Preliminary Evaluation Closed
1986-06-17

AIR BRAKE VALVE LEAKS

EA86019 Engineering Analysis Closed
1986-06-17

REAR BRAKE FAILURE

PE86058 Preliminary Evaluation Closed
1986-06-16

FUEL SPURTING/FIRES

FORD FORD

DP86011 Defect Petition Closed
1986-05-30

SUDDEN ACCELERATION

EA86016 Engineering Analysis Closed
1986-05-30

SUDDEN ACCELERATION

EA86015 Engineering Analysis Closed
1986-05-30

HYDRAULIC FLUID LEAKS

PE86057 Preliminary Evaluation Closed
1986-05-23

BRAKE FAILURE/FIREWALL

DP86010 Defect Petition Closed
1986-05-21

FRAME AND CHASSIS COMPONENTS

PE86056 Preliminary Evaluation Closed
1986-05-12

AXLE FAILURE

PE86055 Preliminary Evaluation Closed
1986-05-12

FIRES

MASERATI MASERATI

PE86054 Preliminary Evaluation Closed
1986-05-09

LINING SEPARATION

EA86013 Engineering Analysis Closed
1986-05-08

CRUISE CONTROL

DP86009 Defect Petition Closed
1986-05-07

UNCONTROLLED ACCELERATION

PE86053 Preliminary Evaluation Closed
1986-05-01

INADEQUATE REAR BRAKES

PE86052 Preliminary Evaluation Closed
1986-05-01

REAR AXLE OVERLOAD

CHEVROLET CHEVROLET

PE86050 Preliminary Evaluation Closed
1986-04-28

SUDDEN ACCELERATION

EA86012 Engineering Analysis Closed
1986-04-28

HANDLING DIFFICULTIES

PE86051 Preliminary Evaluation Closed
1986-04-28

WINDSHIELD WIPER FAILURE

PE86049 Preliminary Evaluation Closed
1986-04-24

SEAT TRACK LOCK

PE86048 Preliminary Evaluation Closed
1986-04-23

FIRES

EA86011 Engineering Analysis Closed
1986-04-17

REAR SUSPENSION OVERLOAD

TOYOTA TOYOTA

DP86008 Defect Petition Closed
1986-04-02

SUDDEN ACCELERATION

DP86007 Defect Petition Closed
1986-04-02

SUDDEN ACCELERATION

EA86010 Engineering Analysis Closed
1986-03-26

SEATBACK FAILURE

FORD FORD

DP86006 Defect Petition Closed
1986-03-19

SUDDEN ACCELERATION

EA86009 Engineering Analysis Closed
1986-03-10

OVERLOAD

CHEVROLET CHEVROLET

PE86031 Preliminary Evaluation Closed
1986-02-18

UNDERHOOD FIRES

DP86005 Defect Petition Closed
1986-02-06

UNCONTROLLABLE ACCELERATION

DP86004 Defect Petition Closed
1986-01-21

INCORRECT TIRES

DP86003 Defect Petition Closed
1986-01-13

GM FLEXIBLE BLADE COOLING FANS

DP86002 Defect Petition Closed
1985-12-17

GM AFTERMARKET BRAKE LININGS

PE86018 Preliminary Evaluation Closed
1985-12-13

ALLEGED FIRES

EA86006 Engineering Analysis Closed
1985-11-27

BRAKE BACKING PLATE

EA86005 Engineering Analysis Closed
1985-11-25

POWER BRAKE BOOSTER

FORD FORD

EA86003 Engineering Analysis Closed
1985-10-28

SIDE DOOR FIRES

DP86001 Defect Petition Closed
1985-10-18

CORRODED SHEET METAL TIE ROD ARM

C85010 C Closed
1985-09-30

DUAL REAR WHEEL RETENTION

DP85031 Defect Petition Closed
1985-09-03

SUDDEN ACCELERATION AND ENGINE SURGING

DP85030 Defect Petition Closed
1985-09-03

FAILURE OF 4 SPEED AUTOMATIC TRANSMISSIO

EA85046 Engineering Analysis Closed
1985-08-30

POWER BRAKE ASSIST

EA85045 Engineering Analysis Closed
1985-08-30

SUDDEN ACCELERATION

TOYOTA CRESSIDA

DP85032 Defect Petition Closed
1985-08-29

GLOVE COMPARTMENT DOOR FLEW DOWN

DP85029 Defect Petition Closed
1985-08-26

RECALL OF 1977-1985 MID TO FULL SIZE REA

DP85028 Defect Petition Closed
1985-08-26

SIDE DOOR STRENGTH

EA85043 Engineering Analysis Closed
1985-08-21

UNWANTED VEHICLE ACCEL

EA85040 Engineering Analysis Closed
1985-08-19

SEAT BACK RECLINER

EA85041 Engineering Analysis Closed
1985-08-19

SEAT BACK RECLINER

EA85042 Engineering Analysis Closed
1985-08-16

VEHICLE FIRES

VOLVO VOLVO WHITE

EA85037 Engineering Analysis Closed
1985-07-31

ENGINE COMPARTMENT FIRES

AUDI AUDI

EA85036 Engineering Analysis Closed
1985-07-31

FAILURE OF SPRING HANGERS

FREIGHTLINER FREIGHTLINER

EA85038 Engineering Analysis Closed
1985-07-31

ENGINE COMPARTMENT FIRES

EA85035 Engineering Analysis Closed
1985-07-29

SEPARATION

MINI

DP85027 Defect Petition Closed
1985-07-16

DOOR LOCKS AND DOOR LATCHES

DP85026 Defect Petition Closed
1985-07-16

ENGINE COMPARTMENT FIRE

EA85031 Engineering Analysis Closed
1985-07-12

REAR WHEEL LOCKUP

FORD FORD

C85007 C Closed
1985-06-19

REAR BRAKE LOCKUP

DP85025 Defect Petition Closed
1985-06-14

FUEL LEAKAGE AT FILLER NECK

DP85024 Defect Petition Closed
1985-05-28

STALLING IN FULL AND MIDSIZE FUEL INJECT

DP85023 Defect Petition Closed
1985-05-10

EXCESSIVE RUSTING OF MACPHERSON STRUT FR

EA85029 Engineering Analysis Closed
1985-05-09

SUDDEN ACCELERATION

NISSAN NISSAN

DP85022 Defect Petition Closed
1985-04-30

FLEX FAN FAILURE

DP85020 Defect Petition Closed
1985-04-11

STALLING WHEN COLD

DP85018 Defect Petition Closed
1985-04-10

CARBON MONOXIDE FLOW INTO PASSENGER AREA

DP85019 Defect Petition Closed
1985-04-10

WHEEL BEARING FAILURE AND AXLE

DP85017 Defect Petition Closed
1985-03-29

PULLING TO LEFT AND VIBRATING STEERING W

EA85018 Engineering Analysis Closed
1985-03-13

CRANKSHAFT PULLEY BOLT

DP85015 Defect Petition Closed
1985-03-06

FAILURE TO HOLD OR ENGAGE IN PARK AUTOMA

DP85016 Defect Petition Closed
1985-03-04

DEFECTIVE ELECTRONIC IGNITION SYSTEMS

EA85016 Engineering Analysis Closed
1985-02-22

FLOOR PAN CRACKS

FORD FORD

EA85011 Engineering Analysis Closed
1985-02-14

REAR SUSPENSION OVERLOAD

EA85008 Engineering Analysis Closed
1985-02-14

REAR SUSPENSION OVERLOAD

MINI

EA85010 Engineering Analysis Closed
1985-02-14

REAR SUSPENSION OVERLOAD

DP85014 Defect Petition Closed
1985-02-06

HUB CAP RETENTION

DP85013 Defect Petition Closed
1985-01-31

FRAME RAIL RUST

DP85011 Defect Petition Closed
1985-01-29

REOPEN TRANS. PARK TO REVERSE INVSTGTN A

DP85010 Defect Petition Closed
1985-01-29

FRONT SUSPENSION ALLEGED LOSS OF CONTROL

DP85009 Defect Petition Closed
1985-01-29

FAILURE OF SEAT BACK SECURING BOLTS

DP85012 Defect Petition Closed
1985-01-18

BRAKE PROBLEMS

DP85008 Defect Petition Closed
1985-01-04

STALLING

DP85007 Defect Petition Closed
1984-12-14

CONSTANT VELOCITY JOINT BOOT FAILURE

DP85006 Defect Petition Closed
1984-12-10

LEAKING FUEL RESERVOIRS AND RESULTANT FI

PE85016 Preliminary Evaluation Closed
1984-12-03

ENGINE COMPARTMENT FIRES

DP85005 Defect Petition Closed
1984-11-15

BRAKE POWER ASSIST FAILURE

PE85011 Preliminary Evaluation Closed
1984-11-14

ENGINE COMPARTMENT FIRES

DP85004 Defect Petition Closed
1984-11-07

CARBURETOR PROBLEMS - PLYMOUTH

PLYMOUTH PLYMOUTH

DP85003 Defect Petition Closed
1984-10-31

MOTORCYCLE CONTROL PROBLEMS

DP85002 Defect Petition Closed
1984-10-10

CRANKSHAFT PULLEY BOLT BREAKS

EA84035 Engineering Analysis Closed
1984-09-27

REAR SUSPENSION

CHEVROLET CHEVROLET

DP85001 Defect Petition Closed
1984-09-21

SHOULDER HARNESS PROBLEM

DP84022 Defect Petition Closed
1984-09-21

STEERING LOCKUP

EA84030 Engineering Analysis Closed
1984-09-19

REAR TRAILING ARM

EA84028 Engineering Analysis Closed
1984-08-28

REAR BRAKE LOCKUP

EA84027 Engineering Analysis Closed
1984-08-28

REAR BRAKE LOCKUP

DP84021 Defect Petition Closed
1984-08-28

HYDROPLANING OF DUNLOP SP SPORT D3 RADIA

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.