Tennessee Code Title 39. Criminal Offenses § 39-17-1313

(a) Notwithstanding any law or any ordinance or resolution adopted by the governing body of a city, county, or metropolitan government, including any ordinance or resolution enacted before April 8, 1986, that prohibits or regulates the possession, transportation, or storage of a firearm or firearm ammunition, a person who has a valid enhanced handgun carry permit or concealed handgun carry permit or who lawfully carries a handgun pursuant to § 39-17-1307(g) may, unless expressly prohibited by federal law, transport and store a firearm or firearm ammunition in the person's motor vehicle, as defined in § 55-1-103, while on or utilizing any public or private parking area if:

(b) No business entity, public or private employer, or the owner, manager, or legal possessor of the property shall be held liable in any civil action for damages, injuries or death resulting from or arising out of another's actions involving a firearm or ammunition transported or stored by a person in a person's motor vehicle pursuant to subsection (a) unless the business entity, public or private employer, or the owner, manager, or legal possessor of the property commits an offense involving the use of the stored firearm or ammunition or intentionally solicits or procures the conduct resulting in the damage, injury or death. Nor shall a business entity, public or private employer, or the owner, manager, or legal possessor of the property be responsible for the theft of a firearm or ammunition stored by a person in a person's motor vehicle pursuant to subsection (a).

(c) For purposes of this section:

(d) A person transporting, storing or both transporting and storing a firearm or firearm ammunition in accordance with this section does not violate this section if the firearm or firearm ammunition is observed by another person or security device during the ordinary course of the person securing the firearm or firearm ammunition from observation in or on a motor vehicle.