Odometer rollback is a term used when someone reverses the numbers of the odometer. An odometer is a device that tells how much the vehicle has driven. Nowadays, there are digital odometers, which means it is difficult to make any changes to the readings. But earlier, there used to be a mechanical odometer in which numbers could be reversed manually.
Although it is difficult to reverse rollback readings of digital odometers, not impossible. Readers of digital odometers can be reversed by changing the circuit board of the car and then changing the mileage display. Now when a vehicle is shown it has travelled less, its price automatically increases. The buyer will think it is more durable, functions better, etc. And it is used by a lot of scammers for looting innocent buyers. But, you can check mileage with VIN Number.
To save yourself from the scam, you can confirm if the vehicle has travelled as it is showing with the help of a vehicle identification number.