1996 Buick Riviera Owner's Manual - Page 264

Headlamp Ain ~g Your vehicle has the composite headlamp system. These head1amp.s have horizontal and vertical aim indicators. The aim has been pre-set the factory and should need at no further adjustment. If your vehicle is damaged in an accident and .the headlamp aim seems to be afTected, see your Buick dealer. Headlampson damaged vehicles may require recalibration of the horizontalaim by your Buick dealer. To check theaim, the vehicle should be properly prepared as €allows: The vehicle must have all four tires onperfectly a level surface. The vehicle should not have any snow, or mud ice attached to. it. 0 There should not be any cargo or loading vehicle, of except it should have a full tank of gas and one person or 160 lbs. (75 .kg) on the di-iver 's s,eat. Tires should be properly inflated. 0 c