Headlamp High/Low-Beam Changer; Flash-To-Pass - Chevrolet TrailBlazer 2007 Owner's Manual

If a bulb is burned out, replace it to help avoid an
accident. If the arrows do not go on at all when
you signal a turn, check the fuse. See Fuses and
Circuit Breakers on page 501 and check for
burned-out bulbs.
If you have a trailer towing option with added
wiring for the trailer lamps, a turn signal flasher is
used. With this flasher installed, the signal
indicator flashes 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 your turn signal is left on for more than 3/4 of a
mile (1.2 km), a chime sounds at each flash of
the turn signal. To turn off the chime, move
the turn signal lever to the off position.

Headlamp High/Low-Beam Changer

To change the headlamps from low to high
beam, push the lever toward the instrument panel.
To return to low-beam headlamps, pull the
multifunction lever toward you. Then release it.
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Flash-to-Pass

This feature lets you use your high-beam
headlamps to signal a driver in front of you that
you want to pass. It works even if your headlamps
are in the automatic position.
To use it, pull the turn signal lever toward you,
then release it.
If the headlamps are in the automatic position or
on low beam, the high-beam headlamps turn
on. They will stay on as long as you hold the lever
toward you. The high-beam indicator on the
instrument panel cluster comes on. Release the
lever to return to normal operation.
When the high beams
are on, this indicator light
on the instrument panel
cluster will also be on.