Tennessee Code Title 55. Motor and Other Vehicles § 55-23-103

(a) Persons engaged in the business of towing motor vehicles by wrecker or otherwise or the storing of these motor vehicles for any type of remuneration, whether as the principal business of those persons or as an incidence to the persons' principal business, shall not charge the owner or lienholder of any stored motor vehicle a storage fee for a period exceeding twenty-one (21) days without the consent of the owner or lienholder, except as provided in § 55-23-104.

(b) Persons engaged in the businesses described in subsection (a) shall not charge a storage fee for any day on which the vehicle is not available for release to the owner, lienholder, or insurer, unless such failure to release is based on a hold placed on the vehicle by law enforcement.

(c) Upon provision of documentation from an insurer or lienholder showing its right to take custody of the vehicle, persons engaged in the businesses described in subsection (a) shall release the vehicle to the insurer or lienholder, or an authorized agent or representative for such insurer or lienholder, upon the insurer's or lienholder's payment of reasonable charges due, without requiring additional consent from the owner of the vehicle. The insurer or lienholder shall indemnify and hold harmless the releasing person or entity from any action, cause of action, claim, judgment, loss, liability, damage, or cost that it may incur due to wrongful release of the vehicle to an authorized agent or representative of the insurer or lienholder.

(d) For purposes of subsection (c), “reasonable charges” do not include the following: