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
DP78052 Defect Petition Closed
1978-08-15

BRAKES

DP78050 Defect Petition Closed
1978-08-07

CLUTCH RELEASE CABLE

DP79010 Defect Petition Closed
1978-07-06

AUTOMOBILES WITH GAS TANK BEHIND REAR AX

DP78041 Defect Petition Closed
1978-06-15

MULTI-PIECE TRUCK WHEES & RIMS

DP78040 Defect Petition Closed
1978-06-09

CN 54 TIRES

DP78038 Defect Petition Closed
1978-06-06

STEERING GEAR BOX MOUNT

DP78037 Defect Petition Closed
1978-05-31

GOODYEAR POLYSTEEL RADIALS

DP78036 Defect Petition Closed
1978-05-11

ENGINE COMPARTMENT FIRES RE: 7805110002,

DP78035 Defect Petition Closed
1978-05-02

BUS BRAKES

DP78034 Defect Petition Closed
1978-05-02

SPARK PLUG FOULING

DP78033 Defect Petition Closed
1978-04-24

BATTERY ACID CORROSION

DP78032 Defect Petition Closed
1978-04-24

BRAKES

DP78029 Defect Petition Closed
1978-03-20

SUSPENSION SYSTEM

DP78026 Defect Petition Closed
1978-03-09

121 BRAKING SYSTEMS, ERRATIC COMPUTER

DP78025 Defect Petition Closed
1978-02-07

FUEL TANK FIRES

DP78024 Defect Petition Closed
1978-02-01

121 BRAKING SYSTEM, BRAKE RELEASE

DP78023 Defect Petition Closed
1978-02-01

121 BRAKING SYSTEM, VARIOUS PROBLEMS

DP78022 Defect Petition Closed
1978-02-01

STEERING COUPLING FLANGE FAILURE

DP78021 Defect Petition Closed
1978-01-19

121 BRAKING SYSTEM, BRAKES LOCK UP

DP78020 Defect Petition Closed
1978-01-19

121 BRAKING SYSTEM, BRAKES SLOW TO RELEA

DP78019 Defect Petition Closed
1978-01-17

121 BRAKING SYSTEM, FRONT BRAKES FREEZE

DP78018 Defect Petition Closed
1978-01-06

STEEL BELTED RADIAL TIRES, BR78-13

DP78017 Defect Petition Closed
1978-01-06

121 BRAKING SYSTEM, PREMATURE RELEASE

DP78015 Defect Petition Closed
1977-12-23

BOLTS FAILED, PULLEY SEPARATED FROM DAMP

DP78014 Defect Petition Closed
1977-12-23

VOLKSWAGEN OF AMERICA

VOLKSWAGEN VOLKSWAGEN

DP78013 Defect Petition Closed
1977-12-23

121 BRAKING SYSTEM, WIRING HARNESS DEFEC

DP78016 Defect Petition Closed
1977-12-14

121 BRAKING SYSTEM (EATON)

DP78012 Defect Petition Closed
1977-12-12

HUBCAP CRACKS MAY CAUSE BEARING AND/OR A

DP78011 Defect Petition Closed
1977-12-02

121 BRAKING SYSTEM, DOT LIGHT STAYS ON

DP78009 Defect Petition Closed
1977-12-02

121 BRAKING SYSTEM, ALL WHEEL LOCK DOWN

DP78008 Defect Petition Closed
1977-12-02

121 BRAKING SYSTEM, ALL WHEELS LOCK DOWN

DP78010 Defect Petition Closed
1977-11-28

121 BRAKING SYSTEM, VARIOUS PROBLEMS

DP78007 Defect Petition Closed
1977-11-25

FUEL INJECTION LEAKS

DP78006 Defect Petition Closed
1977-11-23

121 BRAKING SYSTEM (WARNER), AIR CONTROL

DP78005 Defect Petition Closed
1977-11-22

121 BRAKING SYSTEM, WHEEL SENSOR FALLS O

DP78004 Defect Petition Closed
1977-11-17

121 BRAKING SYSTEM NON-FUNCTIONAL

DP78003 Defect Petition Closed
1977-11-17

121 BRAKING SYSTEM, ERRATIC OPERATION

DP78002 Defect Petition Closed
1977-11-08

121 BRAKING SYSTEM, ALUMINUM HUB MISPOSI

DP78001 Defect Petition Closed
1977-10-06

SEAT BELT ASSEMBLY DOES NOT FULLY RETRAC

DP77012 Defect Petition Closed
1977-07-25

HONDA EXPRESS NC 50

HONDA HONDA

DP77008 Defect Petition Closed
1977-03-01

POWER BRAKE BOOSTER

DP77005 Defect Petition Closed
1976-11-16

DEFECTIVE AND UNRELIABLE TRANSMISSION

DP77003 Defect Petition Closed
1976-11-16

EXCESSIVE REFLECTIVE GLARE

DP77004 Defect Petition Closed
1976-10-03

BROKEN SWAY BAR

DP77002 Defect Petition Closed
1976-09-01

ELECTRONIC IGNITION FAILURE AND GAS FUME

DP77001 Defect Petition Closed
1976-07-27

TIE ROD BREAKAGE

DP76011 Defect Petition Closed
1976-06-27

FAULTY BRAKE WARNING LIGHT

DP76012 Defect Petition Closed
1976-06-21

POOR ILLUMINATION OF SPEEDOMETER

DP76010 Defect Petition Closed
1976-06-03

TRANSMISSION FAILURES

DP76009 Defect Petition Closed
1976-03-23

POWER STEERING COLD WEATHER PROBLEMS

DP76008 Defect Petition Closed
1976-03-23

CATALYTIC CONVERTER CAUSED CARPET TO BUR

DP76007 Defect Petition Closed
1976-03-18

FAILURE OF RACK AND PINION STEERING BOX

DP76006 Defect Petition Closed
1976-03-18

UNSTABLE STEERING AND FISHTAILS

DP76005 Defect Petition Closed
1976-03-01

POOR STEERING AND HANDLING

DP76004 Defect Petition Closed
1975-12-04

FRONT END VIBRTION, EXCESSIVE STEERING E

DP76003 Defect Petition Closed
1975-12-01

FUEL TANK LEAKAGE

DP76002 Defect Petition Closed
1975-11-03

CARBURETOR,REAR UPPER & LOWER CONTROL AR

DP76001 Defect Petition Closed
1975-07-20

WHEEL LUGS/NUTS

DP75001 Defect Petition Closed
1975-03-28

CARBURETOR FUEL LEAKAGE

DP75002 Defect Petition Closed
1975-03-27

VACUUM BRAKE HOSE FAILURE

DP77006 Defect Petition Closed
-

FAILURE OF REAR AIR BRAKE SYSTEM

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.