With Twilight Sentinel the following will happen:• When it is dark enough outside, the front turn signallamps (DRL) will go off, and the headlamps andparking lamps will come on. The other lampsthat come on with headlamps will also come on.• When it is bright enough outside, the headlampswill go off, and the front turn signal lamps (DRL)will come on, as long as the exterior lamp switchis in the off position.If the vehicle is started in a dark garage, the automaticheadlamp system comes on immediately. Once thevehicle leaves the garage, it will take about one minutefor the automatic headlamp system to change to DRLif it is light outside. During that delay, the instrumentpanel cluster might not be as bright as usual. Make surethe instrument panel brightness control is in full brightposition. See Instrument Panel Brightness on page 3-40for more information.You can idle the vehicle with the lamps off, even whenit is dark outside. First set the parking brake while theignition is in OFF/ACCESSORY. Then start the vehicle.The lamps will stay off until the parking brake is released.Twilight Sentinel also provides exterior illumination asyou leave the vehicle. If Twilight Sentinel has turned onthe lamps when you turn off the ignition, the lampswill remain on until:• The exterior lamp switch is moved from off to theparking lamp position.• A delay time that you select has elapsed.See Vehicle Personalization on page 2-61 to select thedelay time needed. You can also select no delay time.If the ignition is turned off with the exterior lamp switchin the parking lamp or headlamp position, the TwilightSentinel delay will not occur. The lamps will turn offas soon as the switch is turned off.As with any vehicle, the regular headlamp systemshould be turned on when needed.3-39
