Owner's Manual
Page 273
... vehicle should not have any cargo or loading the vehicle, exceptit should have a tank of gas and full headlamps have horizontal and vertical aim indicators one -quarter of a turn signal bulb... is damaged an accident and the in your Buick dealer. To check the aim, the vehicle should not be affected, see Buick...prepared as follows: socket one person or160 lbs. (75 kg) on the underside bulb assembly recalibration of the horizontal aim by of Your vehicle has the composite headlamp system. I...
... vehicle should not have any cargo or loading the vehicle, exceptit should have a tank of gas and full headlamps have horizontal and vertical aim indicators one -quarter of a turn signal bulb... is damaged an accident and the in your Buick dealer. To check the aim, the vehicle should not be affected, see Buick...prepared as follows: socket one person or160 lbs. (75 kg) on the underside bulb assembly recalibration of the horizontal aim by of Your vehicle has the composite headlamp system. I...