Pontiac 2001 Aztek Owner's Manual page 128

Turn Signal and Lane-Change Indicator
The turn signal has two upward (for right) and two
downward (for left) positions. These positions allow
you to signal a turn or a lane change.
To signal a turn, move the lever all the way up
or down. When the turn is finished, the lever will
return automatically.
To signal a lane change, just raise or lower the lever
until the arrow starts to flash. Hold it there until you
complete your lane change. The lever will return by
itself when you release it.
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An arrow on the
instrument panel cluster
and the optional HUD
display will flash in the
direction of the turn or
lane change.
As you signal a turn or a lane change, if the arrow
flashes faster than normal, a signal bulb may be
burned out and other drivers won't see your turn signal.
If a bulb is burned out, replace it to help avoid an
accident. If the arrows don't go on at all when you
signal a turn, check for burned
fuse (see "Fuses and Circuit Breakers" in the Index).
If you have a trailer towing option with added wiring
for the trailer lamps, the signal indicator will flash at a
normal rate even if a turn signal bulb is burned out.
Check the front and rear turn signal lamps regularly to
make sure they are working.
Turn Signal On Chime
If either turn signal is left on for more than 3/4 mile
(1.2 km), a chime will sound to let the driver know to
turn it off.
If you need to leave the signal on for more than 3/4 mile
(1.2 km), turn off the signal and then turn it back on.
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out bulbs and check the