Carfax and AutoCheck are well-known vehicle history reporting companies that offer free used car histories. Most used car dealerships maintain subscriptions to Carfax or AutoCheck, and generally provide vehicle history reports upon request, as a courtesy to interested buyers.
To get a free Carfax report online, the consumer designates the type of car desired and clicks Show Me Now. This brings up a list of cars that match the criteria and allows the consumer to get reports on any cars on the list. Alternatively, a vehicle identification number search provides a report, if available. AutoCheck offers free searches on vehicle identification numbers and license plate numbers.