Exterior lamps off reminder, Headlamp high/low-beam changer, Flash-to-pass – Buick 2011 Regal User Manual
Page 138: Daytime running lamps (drl), Exterior lamps off, Reminder -2, Headlamp high/low-beam, Changer -2, Flash-to-pass -2 daytime running, Lamps (drl) -2
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