Section 41-6a-804 - Turning or changing lanes - Safety - Signals - Stopping or sudden decrease in speed - Signal flashing - Where prohibited(1)(a) A person may not turn a vehicle, merge into a continuing lane from a lane of travel that is ending, or otherwise move right or left on a roadway or change lanes until: (i) the movement can be made with reasonable safety; and(ii) an appropriate signal has been given as provided under this section.(b) A signal of intention to turn right or left or to change lanes shall be given continuously for at least the last two seconds preceding the beginning of the movement.(2) A person may not stop or suddenly decrease the speed of a vehicle without first giving an appropriate signal to the operator of any vehicle immediately to the rear when there is opportunity to give a signal.(3)(a) A stop or turn signal when required shall be given either by the hand and arm or by signal lamps.(b) If hand and arm signals are used, a person operating a vehicle shall give the required hand and arm signals from the left side of the vehicle as follows: (i) left turn: hand and arm extended horizontally;(ii) right turn: hand and arm extended upward; and(iii) stop or decrease speed: hand and arm extended downward.(c)(i) A person operating a bicycle or device propelled by human power may give the required hand and arm signals for a right turn by extending the right hand and arm horizontally to the right.(ii) This Subsection (3)(c) is an exception to the provision of Subsection (3)(b)(ii).(4) A person required to make a signal under this section may not flash a signal: (a) on one side only on a disabled vehicle;(b) as a courtesy or "do pass" to operators of other vehicles approaching from the rear; or(c) on one side only of a parked vehicle.(5) A violation of this section is an infraction.Amended by Chapter 99, 2021 General Session ,§ 1, eff. 5/5/2021.Amended by Chapter 412, 2015 General Session ,§ 64, eff. 5/12/2015.Amended by Chapter 52, 2007 General Session