How to spot odometer fraud on a used car

Author: Mariano · Last updated: October 12, 2026

Odometer fraud is disconnecting, rolling back or altering a car’s mileage counter so it looks less used. The seller then asks more money for a more worn-out car.

NHTSA estimates that more than 450,000 vehicles are sold each year in the US with a false odometer reading. It’s a federal crime.

Why it affects you

You overpay for the car.
You misjudge maintenance: the timing belt, brakes or transmission may need work sooner than you think.
When you resell, the problem may come out and lower the value.

The odometer statement

When a vehicle changes hands, federal law requires the seller to disclose the mileage in writing on the title or on a separate form. For model year 2011 and newer vehicles, this requirement applies until the vehicle is 20 years old. Lying on that statement is illegal.

Warning signs

In the paperwork

Mileage on the title, registration or service receipts doesn’t follow a logical line (for example, a service two years ago showing more miles than today).
Several years of maintenance records are missing.
Oil-change stickers (on the windshield or door) showing more miles than the dashboard.

On the car

Wear on the steering wheel, shifter, pedals or driver’s seat that doesn’t match low mileage. A car with 40,000 miles usually doesn’t have a brake pedal pad worn down to the metal.
New tires on a supposedly “lightly used” car, or very worn original tires.
On analog odometers: misaligned digits or numbers that move oddly.
Scratched dashboard screws or signs it was taken apart.

With tools

Some of the car’s electronic modules store their own mileage record. A mechanic with a scan tool can compare them to the dashboard.
An NMVTIS report shows the odometer reading reported when the title was issued. Commercial reports usually add readings from service visits and inspections.

How to protect yourself

Ask for service records and compare them with the dashboard.
Check the title: look for the odometer reading and any notice like “not actual mileage” or “exceeds mechanical limits”.
Buy a history report that shows readings over time.
Get a pre-purchase inspection.
If something doesn’t add up, walk away — there are plenty of used cars for sale.

Frequently asked questions

Can't digital odometers be tampered with?

They can. With electronic tools it's possible to change a digital odometer reading, and it leaves no visible marks like the misaligned numbers on analog ones.

What should I do if I find out I was sold a car with a rolled-back odometer?

Gather the documents (title, odometer statement, service records) and report it to your state attorney general's office or the police. Odometer tampering is a federal crime, and you may also want to talk to a lawyer.