How to Check a Used Car for Flood Damage

The car is two states from any flood, the price is a little under the market, and the title looks ordinary. Water damage is the defect that hides best: the carpet is new, the interior smells of cleaner, and the corrosion is quietly working through wiring looms and airbag connectors where nobody looks. Storm cars are dried out, retitled and moved inland, so where the car is standing tells you nothing. Start with the number on the dash.

Run the VIN through the federal title system first

NMVTIS, the federal title database, says a report returns five things: the current state of title and last title date, the brand history, the odometer reading, total loss history, and salvage history. State titling agencies, junk yards, salvage yards, auto recyclers and insurers are all required by federal law to report into it. Buy the report from the approved provider list, which also states that consumers cannot get an NMVTIS report from Carfax, DMVDesk or Experian, because those three sell only to dealerships. The Texas DMV says prices start at a couple of dollars as of September 2026, so compare vendors before picking one.

Read the brand and the state that issued the title

A brand is a permanent label a state prints on the title. The Wisconsin DMV brand list defines flood damaged as water damage where repair costs run to more than 70 percent of fair market value, and says brand information from a previous jurisdiction carries onto the new title. The FTC defines a flood title as damage from sitting in water deep enough to fill the engine compartment, and a salvage title as a total loss declared by an insurer. The New York DMV tells buyers to look at when the title was issued and to give a title dated just after a hurricane extra scrutiny.

Look for the water line the seller could not reach

The FTC alert says to check for water stains, mildew, sand or silt under the carpet, the floor mats and the dashboard, and for fogging inside the headlights and taillights. New carpet or upholstery in an older car is a flag. So is a heavy smell of cleaner or disinfectant, which is used to mask mold. Lift a corner of the carpet and put a hand under the spare tire well rather than looking at the surface.

Pay a mechanic to inspect it before any money moves

The FTC states that a vehicle history report is not a substitute for an independent inspection, and that a report may list accidents and flood damage but usually will not list mechanical problems. The New York DMV makes the same point: a used car that looks fine can still carry substantial damage. A car that was repaired privately, with no insurance claim ever filed, does not appear in any database.

Get the Buyers Guide and every promise in writing

The FTC Used Car Rule requires a dealer to display a Buyers Guide in every used car offered for sale, including light-duty vans and trucks, demonstrators and program cars. It must say whether the car is sold as is or with a warranty, and what percentage of repair costs the dealer pays under that warranty. The FTC warns that spoken promises are hard to enforce, so a verbal assurance that the car was never in water is worth nothing.

If the report comes back empty. NMVTIS deliberately leaves out repair history, recall information and maintenance records, so a thin report is not a clean bill of health. Some states do not brand flood damage at all, and a seller can retitle a car in one of them. Treat an empty file as a reason to inspect harder.

If you already bought one. Report the seller at ReportFraud.ftc.gov and to your state titling agency. If the paperwork is still open, transferring the title is the step where a brand lands on your own record.

Sources. NMVTIS report contents, NMVTIS approved providers, Texas DMV Title Check, Wisconsin DMV title brands, FTC alert on flood-damaged cars, FTC buying a used car from a dealer, New York DMV flood damage warning, FTC fraud reporting.