I bought a new vehicle and traded in the old one. But to make an offer on the trade in, they checked the Carfax report. I went to the dealer for the last few repairs and they entered the wrong odometer mileage! The mileage number was entered incorrectly on multiple Instances.
In evaluating the trade in, they assumed the odometer was rolled back (that is embarrassing). They gave me an offer thousands of dollars lower that what I expected.
The first time, I actually noted the discrepancy at the time of the service, but the service department just shrugged it off. And I did not understand the consequences at the time. I mention it here because we have to be watchful as consumers.
(of course, I chose not to purchase the same brand as before).