1998 Buick Regal Owner's Manual - Page 299

4. Connect the new headlamp assembly to the wiring harness, making sure the connector tab snaps into place. To check the aim, the vehicle should be properly prepared as follows: 0 0 Place the vehicle on a level pad or surface. The vehicle should not have any snow, ice or mud attached to it. The vehicle should be fully assembled and all other work stopped while headlamp aiming is being done. There should not be any cargo or loading of the vehicle, except it should have a full tank of gas and one person or 160 lbs. (75 kg) on the driver's seat. Close all doors. Tires should be properly inflated. Rock the vehicle to stabilize suspension. the 5. Insert the headlamp intothe slots in the fascia. 6. Slide the retainers downward until they are fully seated. 0 Headlamp Aiming Your vehicle has a modular headlampsystem. These headlamps have horizontaland vertical aim indicators. The aim has been optically pre-set at the factory and should need no further adjustment. If your vehicle is damaged an accident and the in headlamp aim seems to be affected, see your dealer. Headlamps on damaged vehicles may require recalibration of the vertical and horizontal aim by your dealer. 0 0 0 0 I NOTICE: To make sure your headlamps are aimed properly, read all the instructions before beginning. Failure to follow these instructions could cause damage to headlamp parts. I 6-35