Headlamp High/ Low-Beam Changer
Headlamp High/Low-Beam Changer: Push the turn signal/lane change lever away from you and release, to turn the high beams on.
To return to low beams, push the lever again or pull it toward you and release.

This indicator light turns on in the instrument panel cluster when the high-beam headlamps are on.
See also:
2011 Buick Regal Review
More than a few surprises have accompanied the rebirth of General Motors.
Chief among them is the resurgence of Buick, which was chosen as one of just
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Vehicle Overview
Buick brings back one of its well-known nameplates — Regal — for its new
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FM Stereo
FM stereo gives the best sound, but FM signals
reach only about 10 to 40 miles (16 to 65 km). Tall
buildings or hills can interfere with FM signals,
causing the sound to fade in and out. ...
