2001 GMC Sierra 1500 Pickup Owner's Manual - Page 136

Turn Signal On Chime If your turn signal is left on for more than 3/4 of a mile (1.2 km), a chime will sound at each flash of the turn signal. To turn off the chime, move the turn signal lever to the off position. If your headlamps are off or on low-beam, your high-beam headlamps will turn on. They'll stay on as long as you hold the lever toward you and the high-beam indicator on the instrument panel will come on. Release the lever to turn the high-beam headlamps off. Headlamp High/Low Beam Changer To change the headlamps from low to high beam or high to low beam, pull the multifunction lever all the way toward you. Then release it. When the high beams are on, this light on the instrument panel also will be on. Windshield Wipers Flash-To-Pass Feature This feature allows you to 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 off. To use it, pull the turn signal lever toward you, but not so far that you hear it click. You control the windshield wipers by turning the band with the wiper symbol on it. 2-53