A person shall be guilty of reckless driving who fails to give adequate and timely signals of intention to turn, partly turn, slow down, or stop, as required by Article 6 (§ 46.2-848 et seq.) of this chapter.
Failing to give proper signals
Va. Code Ann. § 46.2-860, under Chapter 8. Regulation of Traffic..
Va. Code Ann. § 46.2-860