Vehicle defect investigations

When owner complaints, crash reports or a petition point to a possible safety defect, NHTSA opens an investigation; some end in a recall. Newest first; 110 listed here are still open. An investigation is not a recall: check your VIN for recalls that apply to your car.

• NHTSA opens probe into Comma.AI Comma 3X and 2 other models: Crashes involving comma.ai driving automation products
  PE26007Preliminary EvaluationOpened September 21, 2026Open
• NHTSA reviews defect petition on 2022 BMW 540I: Driveshaft to rear differential connection failure
  DP26009Defect PetitionOpened September 14, 2026OpenPower Train: Driveline: Driveshaft
• NHTSA opens audit query into Avride Automated Driving System: Compliance with Standing General Order 2021-01 Reporting Requirements
  AQ26003Audit QueryOpened September 14, 2026Open
• NHTSA reviews defect petition on 2015–2018 Ford Edge: Loss of Motive Power
  DP26008Defect PetitionOpened September 3, 2026OpenEngine and Engine Cooling
• NHTSA opens audit query into 2026 Tesla Robotaxi (Cybercab): Tesla Cybercab FMVSS Certification
  AQ26002Audit QueryOpened September 3, 2026Open
• NHTSA reviews defect petition on 2024 Ford Maverick Hybrid: 2024 Ford Maverick Hybrid Intermittent Loss of Braking
  DP26007Defect PetitionOpened August 24, 2026OpenService Brakes
• NHTSA opens engineering analysis of 2023–2026 Buick, Cadillac and 2 other makes’ vehicles: Electronic Brake Module Component Failure
  EA26006Engineering AnalysisOpened August 21, 2026OpenService Brakes
• NHTSA opens engineering analysis of 2021–2026 Cadillac, Chevrolet and GMC vehicles: Loss of motive power due to engine failure post recall remedy
  EA26005Engineering AnalysisOpened August 20, 2026OpenEngine
• NHTSA reviews defect petition on 2024–2026 Toyota Grand Highlander and Grand Highlander Hybrid: Road debris/rocks damaging the heat exchangers
  DP26006Defect PetitionOpened August 20, 2026OpenEngine and Engine Cooling: Cooling System
• NHTSA opens engineering analysis of 2014–2018 Ford Fiesta and Focus: Timing Belt Failure
  EA26004Engineering AnalysisOpened July 31, 2026OpenEngine; Engine and Engine Cooling: Engine: Gasoline: Belts and Associated Pulleys
• NHTSA opens probe into 2018–2023 Tesla Model 3 and Model Y: Lower Lateral Link detachment
  PE26006Preliminary EvaluationOpened July 29, 2026OpenSuspension: Front: Control Arm: Lower Arm
• NHTSA closes defect petition review on 2011–2017 Honda Odyssey: Inadvertent Deployment of Air Bags
  DP26005Defect PetitionOpened July 13, 2026Closed September 24, 2026Air Bags: Air Bag/Restraint Control Module: Software
• NHTSA opens probe into Doona CAR Seat/ Stroller: Carry Handle Separation
  PE26005Preliminary EvaluationOpened July 6, 2026OpenChild Seat: Handle (Infant)
• NHTSA opens audit query into Ford and Hyundai vehicles: NU Car rental of vehicles with open recalls
  AQ26001Audit QueryOpened June 9, 2026OpenNone
• NHTSA opens probe into 2022–2025 Rivian R1S and R1T: Rear Toe Link May Separate
  PE26004Preliminary EvaluationOpened May 26, 2026OpenSuspension: Rear
• NHTSA opens probe into Avride Automated Driving System: Automated Driving System (ADS) conflict avoidance, driving behavior competence and assertiveness
  PE26003Preliminary EvaluationOpened May 6, 2026OpenElectrical System: Adas: Autonomous/Self Driving: Software
• NHTSA opens engineering analysis of 2014–2022 Land Rover Range Rover and Range Rover Sport: Front Steering Knuckle Fractures
  EA26003Engineering AnalysisOpened April 24, 2026OpenSteering: Linkages: Knuckle: Spindle: Arm
• NHTSA reviews defect petition on 2010 Ford Fusion Hybrid: Anti-lock brake system (ABS) Malfunction Indicator Lamp (MIL) illuminated
  DP26004Defect PetitionOpened April 9, 2026OpenService Brakes, Hydraulic: Antilock/Traction Control/Electronic Limited Slip: Control Unit/Module
• NHTSA reviews defect petition on 2006 Nissan Frontier: Fuel smell and loss of motive power
  DP26003Defect PetitionOpened March 30, 2026OpenEngine and Engine Cooling; Fuel System, Gasoline
• NHTSA opens engineering analysis of 2016–2026 Tesla Cybertruck and 4 other models: FSD Collisions in Reduced Roadway Visibility Conditions
  EA26002Engineering AnalysisOpened March 18, 2026OpenElectrical System: Adas
• NHTSA closes defect petition review on 2021–2023 Acura MDX and 3 other models: All wheel drive allegation
  DP26001Defect PetitionOpened March 6, 2026Closed August 4, 2026Power Train: Automatic Transmission: Internal: Shaft: Output; Power Train: Transfer Case (4-Wheel Drive)
• NHTSA closes defect petition review on Fleetwood and Western Star vehicles: Redundant wheel fastener locking mechanism
  DP26002Defect PetitionOpened March 4, 2026Closed August 13, 2026Wheels: Lugs/Nuts/Bolts/Studs
• NHTSA opens probe into 2022–2023 Braun and RAM vehicles: Loss of Power Steering Assist
  PE26002Preliminary EvaluationOpened March 2, 2026OpenElectrical System: Wiring: Connectors/Plugs/Receptacles; Steering: Electric Power Assist System; Steering: Rack and Pinion: Rack
• NHTSA opens engineering analysis of 2015–2017 Ford F-150: Unintended Transmission Downshift and Rear Wheel Lock-up
  EA26001Engineering AnalysisOpened January 30, 2026OpenPower Train: Automatic Transmission: Control Module (Tcm/Pcm/Tecm)
• NHTSA opens probe into Waymo 5TH Generation ADS: Waymo AV striking a child in the area of a school.
  PE26001Preliminary EvaluationOpened January 29, 2026OpenElectrical System: Adas: Autonomous/Self Driving: Software
• NHTSA opens recall query into 2024–2025 Mazda CX-90 and CX-90 Plug-IN Hybrid: Momentary increase in steering effort after recall remedy
  RQ26002Recall QueryOpened January 26, 2026OpenSteering: Rack and Pinion
• NHTSA closes recall query into 2021–2024 Cadillac, Chevrolet and GMC vehicles: Loss of motive power due to engine failure post recall remedy
  RQ26001Recall QueryOpened January 16, 2026Closed August 20, 2026Engine
• NHTSA closes defect petition review on 2022 Tesla Model 3: Emergency egress controls are not readily accessible and clearly identifiable.
  DP25002Defect PetitionOpened December 23, 2025Closed July 22, 2026Structure: Body: Door: Handle: Interior
• NHTSA closes probe into 2014–2018 Ford Fiesta and Focus: Timing Belt Failure
  PE25020Preliminary EvaluationOpened December 18, 2025Closed July 31, 2026Engine; Engine and Engine Cooling: Engine: Gasoline: Belts and Associated Pulleys
• NHTSA opens recall query into 2021–2023 Jeep Grand Cherokee and Grand Cherokee L: Recall 23V-413 Post Remedy Failures
  RQ25005Recall QueryOpened December 11, 2025OpenSuspension: Rear: Springs: Coil Springs

Source: NHTSA Office of Defects Investigation investigations file, updated daily. Summaries on each page are ODI’s own words.