How to File a Vehicle Defect Report Form with NHTSA

To file a vehicle defect report with NHTSA, fill out the online Vehicle Owner’s Questionnaire at nhtsa.gov/report-a-safety-problem, call the Vehicle Safety Hotline at 888-327-4236, or mail a written complaint to the National Highway Traffic Safety Administration in Washington, D.C. The agency reviews every complaint it receives and uses the data to spot recurring failures that could lead to a recall. Having your Vehicle Identification Number and a clear description of the problem ready before you start makes the process faster.

What to Have Ready Before You File

Gather this information about the vehicle and the incident before opening the form:

Your 17-character Vehicle Identification Number, printed on a plate at the lower left of the windshield, on the driver’s side door jamb sticker, and on your registration and insurance documents.¹
Year, make, and model, so NHTSA can match your complaint with reports from other owners of the same vehicle.
The current odometer reading, which helps analysts see whether failures cluster at certain mileage.
The component or system involved: brakes, steering, airbags, electrical, fuel, powertrain, driver-assistance technology, or another system the form lists.
The date and circumstances of the incident, including your speed, road and weather conditions, and whether the vehicle was moving or parked.
Crash, fire, or injury details, including how many people were hurt and the extent of property damage. NHTSA uses this information to prioritize its review.

If a mechanic has already inspected the vehicle, keep the repair receipt and any written diagnosis. It supports your description, and if a recall is eventually issued, it may qualify you for reimbursement.

Filing Online

The fastest path is the NHTSA website. Go to nhtsa.gov/report-a-safety-problem and pick the category that matches your situation: vehicle, child car seat, tire, other vehicle-related equipment, or automated vehicle.² The form walks you through entering the vehicle identifiers, selecting the affected component, and describing what happened.

The narrative description box is where your report either helps investigators or gets lost in the noise. Write in plain, specific language. Rather than “the car acted weird,” write something like “at 45 mph on a dry highway, the steering wheel locked to the right for approximately two seconds before releasing.” Note whether the check-engine light or any warning indicators came on. If the problem happens intermittently, say how many times and under what conditions. Analysts sift through thousands of complaints looking for patterns, and concrete details are what make yours useful.

The form also asks for contact information so investigators can follow up during a formal inquiry. After you submit, the system generates a confirmation number. Save it. You can use it to update your complaint later if the problem worsens or produces new symptoms.

Filing by Phone or Mail

If you would rather not file online, call the Vehicle Safety Hotline at 888-327-4236. English- and Spanish-speaking representatives take calls Monday through Friday, 8 a.m. to 8 p.m. Eastern. A TTY line is available at 888-275-9171.² The representative walks you through the same questions as the online form and gives you a reference code you can use to track your filing.

You can also mail a written complaint to:

National Highway Traffic Safety Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Include the same information: VIN, year, make, model, odometer reading, the affected component, a detailed description of the incident, and your contact information. Mailed complaints are processed the same way as online and phone submissions.³

Reporting Defects in Tires, Child Seats, and Other Equipment

The complaint process is not limited to the vehicle itself. NHTSA accepts defect reports for tires, child restraint systems, helmets, brake fluid, and aftermarket equipment installed on a vehicle after it left the factory.² The same three filing methods apply. In the online form, select the matching product category instead of “vehicle.”

For tires, note the brand, model, and size printed on the sidewall along with the DOT identification number. For child car seats, include the manufacturer, model name, and model number. Those identifiers let the agency link your report to other complaints about the same product and to any applicable federal safety standards.⁴

What Happens After You File

Every complaint enters a national database where technical staff screen it for potential safety trends. Your report is added to a publicly searchable database after personally identifying information is removed.¹ Other owners can see the description of the problem, but not your name or contact details.

When analysts see a cluster of similar complaints, the agency may open a Preliminary Evaluation to look at the scope of the failure. If the evidence supports it, the next step is an Engineering Analysis involving physical testing. If a safety-related defect is confirmed and the manufacturer has not voluntarily recalled the product, NHTSA can issue a formal Recall Request letter demanding action.⁵ Recall repairs are performed at no charge to owners.

Getting Reimbursed for Pre-Recall Repairs

If you paid out of pocket to fix a problem that is later covered by a recall, federal regulations entitle you to reimbursement from the manufacturer. The rule applies as long as your repair addressed the same defect that triggered the recall, even if it was not identical to the fix the manufacturer eventually chose.⁶

Each recall notice includes instructions on where to send claims. Submit to the manufacturer:

Your name and mailing address.
Vehicle or product identification. For vehicles, the make, model, model year, and VIN. For tires, the model and size. For child restraint systems, the type and model.
The recall number, either NHTSA’s or the manufacturer’s own.
A repair receipt, original or copy, showing that the repair addressed the recalled defect and stating the total amount paid.⁶

Manufacturers can deny reimbursement if the repair was covered under the original or extended warranty, unless the dealer refused warranty coverage or the warranty repair failed to fix the defect. The eligible reimbursement window generally opens one year before the manufacturer notified NHTSA of the recall, or earlier if an Engineering Analysis was already open, and closes ten calendar days after the manufacturer mailed its last notification to owners.⁶

What NHTSA Will Not Handle

NHTSA’s job is identifying defects that affect public safety at scale. The agency does not step into individual repair disputes, order a dealership to give you a refund, or resolve warranty disagreements.⁴ If your issue is a billing dispute with a dealer or a warranty fight rather than a safety defect, another agency handles it. Car warranty complaints go to your state attorney general’s office. Deceptive advertising or rental car problems go to the Federal Trade Commission. Auto loan and payment disputes go to the Consumer Financial Protection Bureau.⁷

1
National Highway Traffic Safety Administration. Check for Recalls: Vehicle, Car Seat, Tire, Equipment
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National Highway Traffic Safety Administration. Report a Vehicle Safety Problem, Equipment Issue
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National Highway Traffic Safety Administration. Steps From Complaint to Recall
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National Highway Traffic Safety Administration. Resources Related to Investigations and Recalls
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National Highway Traffic Safety Administration. Risk-Based Processes for Safety Defect Analysis and Management of Recalls
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eCFR. Reimbursement for Pre-Notification Remedies
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USAGov. Where to File a Complaint About Your Car