Recall, service bulletin or investigation? What each one means for your car

All three documents live in NHTSA’s public files, and all three can name your car. They are not three levels of the same thing. They come from different people, carry different obligations, and call for different things from you.

“Free” for a recall means the manufacturer pays for the remedy on vehicles first sold no more than 15 calendar years before the recall notice (5 years for tires). Bulletin repairs are free only when a warranty or a coverage program pays.

A recall starts when a manufacturer decides — or NHTSA pushes it to decide — that a vehicle has a defect related to motor vehicle safety, or does not comply with a Federal Motor Vehicle Safety Standard. From that decision the law runs on a clock. The manufacturer must file a Part 573 Safety Recall Report with NHTSA within five business days, describing the defect, the vehicles it believes are affected and the remedy it plans. Owners must be notified by first-class mail no later than 60 days after that report is filed.

The remedy is the manufacturer’s cost, not yours: repair, replacement or, in some cases, a refund. Federal law makes it free for any vehicle first sold to a buyer no more than 15 calendar years before the recall notice, and it does not matter how many owners the car has had since.

It happens more often than most owners assume. In the last twelve months manufacturers filed 391 vehicle recall campaigns covering the vehicles on this site, with 40,096,292 vehicles named as potentially affected.

The 60-day rule is mostly kept. Across the 3,509 campaigns on file that record both dates, the median gap between the manufacturer’s filing and the owner letter was 48 days, and 79% of letters went out inside the 60-day limit.

Two things a recall does not tell you. It covers a range of vehicles built between two dates, not every car of a model year, so a recall listed against your model does not mean your car is in it. And the list of VINs inside a campaign exists only at the manufacturer. The only way to settle it for one vehicle is a VIN lookup — at nhtsa.gov/recalls or on the manufacturer’s own recall site, which large manufacturers are required to run and keep current.

A few recalls come with an instruction for today, not for the service appointment: park outside and away from buildings because of a fire risk, or do not drive until the repair is done. 117 campaigns on this site carry one of those advisories — every one is listed here.

A service bulletin is the manufacturer writing to its dealers. It might explain how to diagnose a noise, give a revised repair procedure, announce a software update, or extend the warranty on a part that is failing more often than it should. Most are not about safety at all, and none of them obliges anyone to repair your car.

What makes them public is a federal rule. Under 49 CFR 579.5 a manufacturer must send NHTSA a copy of every notice, bulletin or other communication it sends to more than one dealer or owner about a defect in its vehicles — whether or not the defect is safety-related. That is why a bulletin about a rattling heat shield sits in the same federal file as a recall.

Communications filed with NHTSA for the vehicles on this site, by the kind each one is.

Bulletins are frequent: 9,159 of the ones on file are dated within the last twelve months.

Whether a bulletin repair costs you anything depends on what is paying for it. Inside the factory warranty, a dealer will normally do the work at no charge because the warranty covers the part. A warranty extension or special coverage program is a promise to pay for one specific part for longer than the warranty — often years longer — and it is the bulletin type most worth knowing about. Outside both, the bulletin is a repair procedure, and you pay for it like any other repair.

An investigation is NHTSA’s Office of Defects Investigation (ODI) looking at whether a safety defect exists. It usually starts from a pattern — owner complaints, crash and injury reports that manufacturers must submit, a petition from the public, or something in a manufacturer’s own filings.

• Defect Petition (DP) — anyone can ask NHTSA to open an investigation; the agency decides whether to grant it.
• Preliminary Evaluation (PE) — the usual first formal step. ODI asks the manufacturer for data and analyses it.
• Engineering Analysis (EA) — the deeper second step when a PE is not enough: more data, sometimes testing.
• Recall Query (RQ) — a look at whether an existing recall covered enough vehicles, or whether its remedy works.

An investigation can close with no finding, or with a recall. Most recalls that follow an investigation are filed by the manufacturer itself; NHTSA has the power to order one, but only after a formal decision process that is rarely used.

Right now 77 investigations on this site are open (24 PE, 20 EA, 13 AQ, 11 RQ, 9 DP).

Of the 713 closed investigations on file, 49% list a recall among their outcomes.

For an owner, an open investigation is a signal rather than an instruction. Nothing is required of you, and nothing is owed to you yet. But if your car shows the symptom being investigated, it is exactly the moment to file a complaint with NHTSA, because complaints are the evidence investigations are built on.

The three records often describe the same problem at different stages. A condition can appear first as a service bulletin telling dealers how to repair it, draw owner complaints, become an investigation when the pattern looks like a safety risk, and end as a recall — sometimes with the bulletin’s repair as the remedy. Just as often a problem stays a bulletin forever, because it is a comfort or durability issue rather than a safety one.

That is why reading only one of them misses things. A car with no recalls can still have a well-documented problem in its bulletins, and a car with an open investigation may be months from a recall that has not been filed yet. Each vehicle page on this site puts all three side by side for that reason.

1. Check the VIN for open recalls.
   Once, now, and again whenever you buy or sell. It is free at nhtsa.gov/recalls and settles the question for your specific car. If a recall is open, any franchised dealer for that brand will do the repair at no charge.
2. Search the bulletins when something goes wrong.
   A symptom that a bulletin describes is a symptom the manufacturer already knows about. Bring the number to the service desk and ask whether a warranty or coverage program pays for it.
3. Treat an open investigation as a reason to report, not to panic.
   If your car has the problem under investigation, file a complaint with NHTSA. If it does not, keep driving and keep an eye on the outcome.
4. Let the record come to you.
   A recall alert tells you when a new campaign is filed against your vehicle, so you are not relying on a letter reaching the right address. Set one up for free →

• NHTSA — Motor Vehicle Safety Defects and Recalls: What Every Vehicle Owner Should Know
• 49 CFR Part 573 — Defect and Noncompliance Responsibility and Reports
• 49 CFR 577.7 — Time and manner of owner notification
• 49 U.S.C. 30120 — Remedies for defects and noncompliance
• 49 CFR 579.5 — Notices, bulletins and other communications
• NHTSA — Risk-Based Processes for Safety Defect Analysis and Management of Recalls (DOT HS 812 984)
• NHTSA — Check for recalls by VIN