turn signal

or turn-signal

noun

1. any of four signal lights on the front left, front right, rear left, and rear right of an automotive vehicle that, when actuated by the driver, flash in pairs on the side toward which a turn is to be made.

Example Sentences

You, bicycling fast in the bike lane, could plainly see our car braking with our turn signal on to make a right.

From Seattle Times

Police dashcam audio captures the troopers laughing and giggling at the notion of citing Guessford for using an improper hand turn signal because of the obscene gesture.

From Seattle Times

Find out where your turn signal lever is and use it!

From Seattle Times

Introduced in 2015, the system included such advanced features as allowing drivers to change lanes by tapping a turn signal and parallel parking on command.

From Reuters

Spying an empty spot in a parking lot, a driver flicks on the turn signal and steers the car into the space.

From New York Times