Tennessee Code Title 55. Motor and Other Vehicles § 55-8-130

(c)(1) The driver of a vehicle who is faced with a yield sign at the entrance to a through highway, drive, or other public roadway is not necessarily required to stop, but is required to exercise caution in entering the highway, drive, or other roadway and to yield the right-of-way to other vehicles which have entered the intersection from the highway, drive, or other roadway, or which are approaching so closely on the highway, drive, or other roadway as to constitute an immediate hazard, and the driver having so yielded may proceed when the way is clear.

(2) Where there is provided more than one (1) lane for vehicular traffic entering a through highway, drive, or other public roadway, if one (1) or more lanes at the entrance are designated a yield lane by an appropriate marker, this subsection (c) shall control the movement of traffic in any lane so marked with a yield sign, even though traffic in other lanes may be controlled by an electrical signal device or other signs, signals, markings or controls.