1998 Buick Riviera Owner's Manual - Page 250

Hood Release Pull the handle inside the vehicle to open the hood. The handleis located on the lowerleft side of the instrument panel, next to Then go to the front of the vehicleand locate the secondary hood release.It is under the front edge of the grille, slightly rightof center as you face the vehicle. Push up on the secondary hood release lever you lift as up the hood. 6-9