Cadillac CT6 Owner Manual (GMNA-Localizing-U.S./Canada-9235592) -2016 - crc - 11/6/15172 LightingThe automatic high-beamheadlamps may need to be disabledif any of the above conditions exist.Exterior Lamps OffReminderA warning chime sounds if the driverdoor is opened while the ignition isoff and the exterior lamps are on.Headlamp High/Low-Beam Changer3 : Push the turn signal lever awayfrom you and release, to turn thehigh beams on. To return to lowbeams, push the lever again or pullit toward you and release.This indicator light turns on in theinstrument cluster when thehigh-beam headlamps are on.Flash-to-PassTo flash the high beams, pull theturn signal lever toward you, andrelease.Daytime RunningLamps (DRL)DRL can make it easier for others tosee the front of your vehicle duringthe day. Fully functional DRL arerequired on all vehicles first sold inCanada.If equipped with Light-EmittingDiode (LED) headlamps, thededicated DRL will come on whenall of the following conditionsare met:. The ignition is on.. The exterior lamp control isin AUTO.. The light sensor determines it isdaytime.. The parking brake is released orthe vehicle is not in P (Park).When the DRL are on, the taillamps,sidemarker lamps, and other lampswill not be on.The DRL turn off when theheadlamps are turned to O or theignition is off.Automatic HeadlampSystemWhen the exterior lamp control isset to AUTO and it is dark enoughoutside, the headlamps come onautomatically.