TMU (true mileage unknown) must be announced if the odometer is inoperable, replaced or repaired. An inoperable odometer must be arbitrated the day of sale.
In a case where the buyer finds an odometer discrepancy or rollback, it must be validated by the Department of Motor Vehicles of the vehicle’s title state. With valid proof the vehicle may be arbitrated regardless of elapsed time. At the time of discovery the buyer must return the vehicle within 48 hours. The seller is responsible for reasonable expenses and transportation.
Odometer discrepancies found by AutoCheck (Experian) must be announced, if they cannot be corrected by the Seller.