1998 Cadillac Seville Owner's Manual - Page 312

Headlamp Aiming Your vehicle has the composite headlamp system. These headlamps have horizontal and vertical aim indicators. The aim has been pre-set at the factory and should need further adjustment. no If your vehicleis damaged in an accident and the headlamp aim seems to be affected, see your dealer. Headlamps on damaged vehicles may require recalibration of the horizontal aim by your dealer. To check the aim, the vehicle should be properly prepared as follows: Place the vehicle on a levelpad or surface. The vehicle should not have any snow, ice or mud attached toit. 0 The vehicle should be fully assembled and all other work stopped while headlamp aiming being done. is There should not be any cargoloading of the or vehicle, except it should havefull tank of fuel and a one person or 160 lbs. (75 kg) on the driver's seat. Tires should be properly inflated. Rock the vehicleto stabilize the suspension. 0 0 0 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.