Tenn. R. Civ. P. 39.02
As amended through January 18, 2024
Issues not demanded for trial by jury as provided in Rule 38 shall be tried by the court; but, notwithstanding the failure of a party to demand a jury as to any issue with respect to which demand might have been made of right, the court in its discretion upon motion may order a trial by jury of any or all issues.
Tenn. R. Civ. P. 39.02