Tennessee Code Title 47. Commercial Instruments and Transactions § 47-18-607

(A) Permits a consumer who fails to make a timely rental payment to reinstate the agreement, without losing any rights or options which exist under the agreement, by the payment of all past due rental charges, the reasonable costs of pickup, redelivery, any refurbishing and any applicable late fee within five (5) days of the renewal date if the consumer pays monthly, or within two (2) days of the renewal date if the consumer pays more frequently than monthly;

(B) In the case where a consumer, at the request of the lessor or its agent, has returned or voluntarily surrendered the property, other than through judicial process, permits the consumer to reinstate the agreement during a period of not less than thirty (30) days after the date of the return of the property. In the event the consumer has paid not less than sixty percent (60%) of the amount called for under the contract to obtain ownership, the reinstatement period under this subsection (a) shall be extended to a total of ninety (90) days after the date of the return of the property. In the event the consumer has paid not less than eighty percent (80%) of the amount called for under the contract to obtain ownership, the reinstatement period under this subsection (a) shall be extended to a total of one hundred eighty (180) days after the date of the return of the property.