1998 Buick Riviera Owner's Manual

To idle your vehicle with the DRL off, shift thetransaxle into PARK (P). The DRL will stay off untilyou shift out of PARK (P).To turn off all exterior lamps at night when you arein PARK (P), turn off the headlamps and move thetwilight sentinel control, located on the lower area ofthe headlamp switch, all the way toward AUTO MIN.When released, the spring control will return to thetwilight sentinel minimum de€ay position, and allexterior lamps will turn off.As with any vehicle, you should turn on the regularheadlamp system when you need it.Cornering Lamps (Option)The cornering lamps are designed to come on whenyou signal a turn. This will provide more light forcornering at night.Twilight St- ~~tine1Twilight sentinel urns your neaalamps, taillamps andparking lamps on and off by sensing how dark it isoutside. The control is located on the lower area ofthe headlamp switch.To operate this feature, leave the headlamp switch off.The vehicle’s twilight sentinel is always enabled.Twenty-three seconds after entering a darkenedenvironment, the headlamps and parkmg lamps willturn on. If the ignition is turned on at night, the exteriorlamps will come on.To turn off all exterior lamps at night when you arein PARK (P), turn off the headlamps and move thetwilight sentinel control, located on the lower area of theheadlamp switch, all the way toward AUTO MIN. Whenreleased, the spring control will return to the twilightsentinel minimum delay position, and all exterior lampswill turn off.If you move the control all the way to AUTO MAX,your lamps will remain on for three minutes after youturn off your engine. If you move the control towardAUTO MIN, the lamps will go off quickly when youturn off your engine. You can set this delay time for onlya few seconds or up to three minutes.Light SensorYour twilight sentinel and daytime running lamps workwith the light sensor on top of the instrument panel.Don’t cover it up. If you do, it will read “dark” and theheadlamps will come on.2-42