2000 Buick Regal Owner's Manual - Page 121

Sunroof (If Equipped) Your vehicle may be equipped with an express-open sunroof. It includes a sliding glass panel and a one-piece sunshade. The control switch works only when the ignition or retained accessory power is on. See "Retained Accessory Power" in the Index. The control switch is located overhead on the headliner. To open the sunroof, push the rear (indented part) of the switch once and the sunroof will open to the vent position only. You will need to open the sunshade by hand. Push the rear of the switch a second time and the sunroof and sunshade will open by themselves. This is the express-open feature. To close the sunroof, push and hold the front of the switch until the sunroof motor stops. The sunshade can only be closed by hand. 2-54