Airstream LAND YACHT 1989 Owner's Manual page 26

SMART STICK OPERATION
The turn signal lever on the left side of the steering column also controls
headlight low-beam and high-beam, the windshield delay wiper/washer, and
the cruise control.
Turn Signal
Move the lever up to the second stop to signal a right turn. Move it down
to the second stop to signal a left turn. When the turn is completed the
signal will cancel and the lever will return to horizontal.
TURN SIGNAL
R.H. TURN - MOVE UPWARD
L.H. TURN - MOVE DOWNWARD
Lane Change Signal
In some turns, such as changing lanes, the steering wheel is not turned far
enough to cancel the turn signal. For convenience you can flash the turn
signal by moving the lever part way (ie: the first step) and holding it
there. The lever will return to horizontal when you release it.
LANE CHANGE
CHANGE FROM LEFT TO RIGHT LANE.
MOVE UPWARD TO 1ST STOP
CHANGE FROM RIGHT TO LEFT LANE.
MOVE DOWNWARD TO 1ST STOP
B-6